Prof.S. Sidhardhan - Academia.edu (original) (raw)

Papers by Prof.S. Sidhardhan

Revista de Chimie, 2021

The quality of water around a municipal dumpsite is greatly affected by the leaching chemicals fr... more The quality of water around a municipal dumpsite is greatly affected by the leaching chemicals from the landfill. The aim of this study is to assess the groundwater quality and to develop and compare the performance of Statistical Package of Social Science (SPSS) regression and Artificial Neural Network models around municipal dumpsite in Tamil Nadu, India. The groundwater samples were collected every month from the 16 sampling points during the study period from January 2013 to December 2017. The physico chemical parameters of the samples such as pH, acidity, alkalinity, Hardness, Chloride, Sulphate and Total Dissolved Solids (TDS) were analysed and Water Quality Index (WQI) was arrived. From this data, the highest and the lowest polluted points S14 and S5 respectively, among the 16 sampling points was found. Correlation analysis showed that TDS exhibited a high positive correlation with chloride and hardness. Two models using SPSS regression and one model using ANN modeling were d...

Nowadays, the construction industries around the world face a major problem due to corrosion of s... more Nowadays, the construction industries around the world face a major problem due to corrosion of steel reinforcement. Glass Fibre Reinforced Polymer (GFRP) rebar emerged as a promising alternative to traditional steel reinforcement with excellent results in terms of corrosion resistance. The unique advantages of GFRP materials such as excellent resistance to corrosion, high strength to weight ratio, electromagnetic neutrality and ease of handling make these materials potentially suitable for the use in reinforced concrete under conditions where conventional steel reinforced concrete has resulted in unacceptable serviceable problem. This paper summarizes the most significant research work published on the flexural behaviour of Reinforced Concrete (RC) beams. A comprehensive review of the literature on the flexural behaviour of RC beams reinforced with steel and GFRP bars subjected to static and cyclic vertical loads.

Polymer Korea, 2016

This paper presents preparation of unidirectional aligned agave sisalana variegata fiber-reinforc... more This paper presents preparation of unidirectional aligned agave sisalana variegata fiber-reinforced vinyl ester composite laminates and their mechanical properties such as tensile, shear, flexural and impact strength. Wet hand layup technique was used for the preparation of composites. Mechanical tests were carried out for different weight percentage of fiber by varying the number of layers. Mechanical properties were analyzed as a function of wt%. The maximum tensile, flexural, impact and shear strength was observed on a composite designated as D. But the maximum tensile and flexural modulus values were identified in a composite designated as E. Experimental results were compared with theoretical results such as the rule of mixture and Bowyer and Bader model. Bowyer and Bader model was able to predict the strength and modulus of the composites better than the rule of the mixture model. The comparison between experimental and predicted values was also done by the student t test.

Journal of Composite Materials, 2015

In the present communication an effective parametric analysis on the mechanical properties (tensi... more In the present communication an effective parametric analysis on the mechanical properties (tensile and flexural strength) of bagasse fiber-reinforced vinyl ester (BFRVE) composites were conducted, and then the fabrication process parameters were optimized by using Taguchi and analysis of variance techniques. Composites plates were fabricated by Taguchi’s L18 experimental design as the function of process parameters such as fiber length, fiber content, fiber diameter, sodium hydroxide concentration and sodium hydroxide treatment duration. The optimum process parameters to obtain the maximum strength values were identified using signal-to-noise ratio calculations. Then, the results were analyzed to know the percentage contribution of each fabrication process parameter on the tensile and the flexural strength using analysis of variance. A multivariable non-linear regression model was developed to predict the strength values and compared with experimental strength values. The developed...

Polish Journal of Environmental Studies, 2021

Strojniški vestnik - Journal of Mechanical Engineering, 2015

In this paper, the Box-Behnken (BB) experimental design of response surface methodology (RSM) was... more In this paper, the Box-Behnken (BB) experimental design of response surface methodology (RSM) was utilized to study the effect of process parameters on the mechanical properties of agave sisalana variegata (ASV) fibre-reinforced vinyl ester (FRVE) composites. The fibre length, fibre content, and fibre diameter were used as process parameters to develop a model using the BB experimental design. Experimental tests were carried out based on the BB design. The experimental tensile and flexural strength values were fitted with the predicted strength values by a second-order polynomial equation via a multiple regression analysis. The results show that the tensile and flexural strength can be predicted by the developed models with more than 98.54 % of the variation in the tensile strength and 99.24 % of the variation in the flexural strength. The level 3 of fibre length (13 mm), level 2 of fibre content (35.19 wt %), and level 1 of fibre diameter (0.24 mm) were selected as the optimal levels of fabrication process parameters using the response surface graph and models. Finally, it was proved that the BB design of response surface methodology could efficiently be applied to the modelling and optimization of the mechanical properties of natural fibre polymer composites.

Revista de Chimie

The quality of water around a municipal dumpsite is greatly affected by the leaching chemicals fr... more The quality of water around a municipal dumpsite is greatly affected by the leaching chemicals from the landfill. The aim of this study is to assess the groundwater quality and to develop and compare the performance of Statistical Package of Social Science (SPSS) regression and Artificial Neural Network models around municipal dumpsite in Tamil Nadu, India. The groundwater samples were collected every month from the 16 sampling points during the study period from January 2013 to December 2017. The physico chemical parameters of the samples such as pH, acidity, alkalinity, Hardness, Chloride, Sulphate and Total Dissolved Solids (TDS) were analysed and Water Quality Index (WQI) was arrived. From this data, the highest and the lowest polluted points S14 and S5 respectively, among the 16 sampling points was found. Correlation analysis showed that TDS exhibited a high positive correlation with chloride and hardness. Two models using SPSS regression and one model using ANN modeling were d...

Polish Journal of Environmental Studies, 2015

This paper presents a survey of resistivity and groundwater quality around the solid waste dumpsi... more This paper presents a survey of resistivity and groundwater quality around the solid waste dumpsite of Tirunelveli Municipal Corporation at Ramaiyanpatti in the state of Tamilnadu, India. Water samples were collected and analysed for physico-chemical parameters in the study area. Electrical resistivity surveys were carried out in the study area. The physico-chemical analysis of groundwater as well as geophysical investigation revealed that there are considerable impacts of solid waste dumpsite leachate in the groundwater aquifer. To minimize the impact of such leachate of a dumpsite on groundwater quality and the environment in general, it is necessary to properly design, construct, and manage the dumpsite by engineering principles.

Journal of Advances in Chemistry, 2017

Sand researches around the world are in continuous search for the alternatives of sand. Fine aggr... more Sand researches around the world are in continuous search for the alternatives of sand. Fine aggregate is an important constituent of concrete and is required in large quantities. Generally, river sand is used as fine aggregate. Due to the increase in the utilization of concrete in construction sector, the need for river sand has been increased enormously. Hence, the abundant sea sand can be used as an alternative of river sand partially.The sea sand samples before (samples A and C) and after mineral extraction were utilized to replace for fine aggregate. The mineral extracted chiefly includes ilmenite, zircon, rutile, sillimanite and super garnet was confirmed by an analytical technique Energy-dispersive X-ray analysis (EDXA). Physical properties of these sands were recorded. Results reveal that the angle of internal friction (O) was high and low in sample A and C, but an opposite trend was observed for specific gravity. Except sample D, remaining samples belong to grade II size. ...

Nano science and technology is a new field of emergence in materials science and engineering, whi... more Nano science and technology is a new field of emergence in materials science and engineering, which forms the basis for evolution of novel technological materials. Nano technology finds application in various fields of science and technology. This report presents the influence of nano silica in mortar with the average diameter of 40 nm and to study the pore filling effect and its pozzolanic activity with cement towards improvement of mechanical properties and durability aspects. The strength, durability, microstructure and acoustical study of cement mortar incorporating nano-silica (NS) in various percentages such as 1%, 2%, 3%, 4% and 5% as a partial replacement of cement is compared with conventional mortar. The hardened properties of the mortar determined using compressive strength of all the specimens at the age of 7, 14 and 28 days. Durability properties have been carried out to determine the steel corrosion. The microstructure of the specimens has been determined by XRD and SE...

The buildings constructed in the present scenario are mostly irregular in geometry and elevation ... more The buildings constructed in the present scenario are mostly irregular in geometry and elevation for aesthetic view. These irregularities may also be due to economical feasibility, land availability and other factors. From the past earthquake, researches says that regularly configured structures stay safe in Earthquakes, but irregularly configured structures could not able to withstand effectively during an earthquake. Structures experience lateral deflections under earthquake loads. This work focuses on studying the various sorts of building irregularities possible and their behaviour during seismic forces. This study focuses on learning the parameters to be analysed while analyzing a structure for seismic force. The various structural behaviour parameters such as displacement, base shear, storey drift, stiffness, strength etc., are needed to be studied. Also to know the model analysis methods those are available for seismic analysis of a structure. Some model analysis methods are ...

The main objective of this study was to investigate the Durability studies of self-compacting con... more The main objective of this study was to investigate the Durability studies of self-compacting concrete (SCC) incorporating fly ash as partial cement replacement and copper slag as a replacement of fine aggregate along with the addition of super plasticizer. In the present study, durability test on cube measuring was performed in the laboratory & specimen changes to the SCC concrete cube. A small cube with different mixes of fly ash and copper slag (0%, 10% up to 50%) as partial replacement of cement and fine aggregate respectively with a water-binder ratio of 0.4% is adopted. To improve the workability of concrete, super plasticizer (glenium sky 8233) of 1% is added to the weight of cement. This replacement would prove to have some environment benefits and would be an economical (or) a cost effective technique in concreting for the future.

The buildings constructed in irregular configuration due to economical feasibility, land availabi... more The buildings constructed in irregular configuration due to economical feasibility, land availability and other factors. From the observations of past earthquakes, a structure with regular configuration structures stay safe in Earthquakes than an structure with irregularities. Structures experience lateral displacements under earthquake loads. This work focuses on studying the various sorts of building irregularities possible and their behaviour during earthquake forces. The various structural behaviour parameters such as displacement, base shear, storey drift, moment, end forces etc., are needed to be studied. The structures are designed and analysed by Time History Analysis using STAAD.PRO V8i software. From this analysis the results obtained shows that the base shear was higher in regular structure but the load transfer was uniform throughout its height. The L shaped structure showed a least performance during an earthquake.

Materiali in tehnologije, Oct 16, 2017

Several attempts were made to investigate the effects of various process parameters on the mechan... more Several attempts were made to investigate the effects of various process parameters on the mechanical properties and wear behavior of synthetic and natural cellulosic fibers and also particle-reinforced polymer composites. However, very few studies were carried out on the effects of various process parameters on the mechanical and wear behavior of phenol formaldehyde (PF) composites reinforced with natural cellulosic fibers and particles. Therefore, in the present study, an attempt was made to observe the effects of various process parameters on the mechanical and wear behavior of wood-dust (WD) and coir-pith (CP) particle-reinforced resole-type PF composites. First, the mechanical properties of a WD/PF composite were studied based on the content of CP particles. Then, the erosive-wear behavior of the WD/PF composite was studied with respect to five different parameters such particle content, erodent size, impact velocity, impingement angle, and standoff distance. The erosive experiments were carried out for five different parameters based on the Taguchi experimental design (L27). The results show that the mechanical properties of the WD/PF composite increase with an addition of CP particles. The increment in the composite modulus was higher than that of the composite strength. The erosive test results indicate that the erosion-wear rate is affected by the particle content, impingement angle, erodent size and impact velocity. Brittle-erosion behavior was identified on the surface of the composite with a heavy erosive wear occurring at a 60°impingement angle.

Cellular Lightweight Concrete (CLC) also known as Foamed concrete is one of the most significant ... more Cellular Lightweight Concrete (CLC) also known as Foamed concrete is one of the most significant type of concrete used for construction purposes due to its various advantages and usages over traditionally produced concrete. The rapid urbanization has led to the enormous increase in wastes being disposed of. This paper aims at identifying the possibility of using recycled materials such as crushed glass and plastic wastes in foam concrete as substitute filler for fine river sand. A protein based foaming agent is adopt for this study. The workability and strength of different mixes, made using performed foam, at varying densities using powdered glass and plastic wastes will be investigate. In this project foam concrete blocks are prepared according to the designed proportions to attain the maximum strength of 1900kg/ .In this project, the mixing of recycled glass wastes 5%, 10%, 15% and recycled plastic wastes 1%, 3%, 5% will add as a filler in foam concrete. The 7days, 14, 28days com...

paper on study of two dimensional dispersion of pollutants through porous media. The experimental... more paper on study of two dimensional dispersion of pollutants through porous media. The experimental setup consists of a transparent tank, made up of 6mm thick Acrylic Sheet with inner dimension of 100cm x 10cm cross-section and 75cm depth for soil compartment . An additional attachment of 40cm x 10cm cross-section and 100cm depth is divided into two compartment perforated (10mm dia holer at 5cm c/c) acrylic sheet of 6mm thick. The front and rear side of the sand compartment is graduated with 1 sq.cm. Drains are provided at 3 places at the bottom of the compartment to replace the media. Sand was used as a porous media. The properties of the sand were found out from various experiments. Chemical pollutant chloride is supplied in the form of Sodium Chloride injection. Various concentrations of pollutants were tried. At every 5 minutes interval, the outlet samples were collected and analyzed for Chloride concentration. From the observed readings the break through curves are drawn. The dis...

JOURNAL OF ADVANCES IN CHEMISTRY

In this study, Wood Dust (WD)/Phenol Formaldehyde (PF) and Coir Pith (CP)/PF composites were hybr... more In this study, Wood Dust (WD)/Phenol Formaldehyde (PF) and Coir Pith (CP)/PF composites were hybridized with the Prosopis Juliflora Fiber (PJF) to obtain the hybrid composites. Composites were prepared by hand moulding technique. The weight percentage of particles and fibers are fixed in the ratio of 1:1. Mechanical properties such as tensile, flexural and impact strengths were evaluated as a function of the particle and fiber loadings. The results show that the properties of both the WD and CP composites obviously improved by the addition of the PJF. The improvement in WD/PF composites was obviously higher than the CP/PF composites for all loadings. The WD/PJF/PF hybrid composites exhibited better tensile (strength of 48.9 MPA and modulus of 1262.1 MPa, respectively), flexural (strength of 55.4 MPa and modulus of 1344.3 MPa, respectively), and impact properties (1.32 KJ/m2).Â

International Journal for Research in Applied Science and Engineering Technology

JOURNAL OF ADVANCES IN CHEMISTRY

Mechanical properties such as tensile, flexural and impact, of randomly oriented Calotropis Gigan... more Mechanical properties such as tensile, flexural and impact, of randomly oriented Calotropis Gigantea Fiber (CGF) -reinforced Phenol Formaldehyde (PF) biocomposites were studied based on the five different fiber loadings (10, 20, 30, 40, and 50 vol%) and three different fiber lengths (3, 9, and 15 mm). The critical fiber length and optimum fiber loading were identified with the maximum level of mechanical properties in this composite. The fractured surfaces of composites after testing were studied by scanning electron microscope (SEM). The results revealed that the addition of CGFs is improving the mechanical properties of the PF composite. The properties of composites reach the properties of the neat resin sample at 20 vol% of all the cases. The critical fiber length and the optimum fiber loading to obtain the maximum mechanical properties were identified as 9 mm and 40 vol% respectively. Experimental tensile property values were compared with theoretical values and found to be in g...

Fibres and Textiles in Eastern Europe

In this paper, an attempt was made to use Prosopis juliflora fibres (PJFs) as a reinforcing agent... more In this paper, an attempt was made to use Prosopis juliflora fibres (PJFs) as a reinforcing agent for phenol formaldehyde (PF) composites. Mechanical properties of the composites were studied for various fibre aspect ratios (FAR) and fibre loadings (FL). A scanning electron microscope (SEM) was used to study the fractured surface of the composites. The peak range of mechanical properties was identified for composites with a FAR of 136 and fibre loading of 23.53 wt%. This study shows that the optimum FAR and fibre loading for PJFs were found to be 136 and 23.53 wt% in order to achieve good reinforcement with better mechanical properties in the PF resin matrix. Experimental results were observed to be in very good agreement with the theoretical.

Revista de Chimie, 2021

The quality of water around a municipal dumpsite is greatly affected by the leaching chemicals fr... more The quality of water around a municipal dumpsite is greatly affected by the leaching chemicals from the landfill. The aim of this study is to assess the groundwater quality and to develop and compare the performance of Statistical Package of Social Science (SPSS) regression and Artificial Neural Network models around municipal dumpsite in Tamil Nadu, India. The groundwater samples were collected every month from the 16 sampling points during the study period from January 2013 to December 2017. The physico chemical parameters of the samples such as pH, acidity, alkalinity, Hardness, Chloride, Sulphate and Total Dissolved Solids (TDS) were analysed and Water Quality Index (WQI) was arrived. From this data, the highest and the lowest polluted points S14 and S5 respectively, among the 16 sampling points was found. Correlation analysis showed that TDS exhibited a high positive correlation with chloride and hardness. Two models using SPSS regression and one model using ANN modeling were d...

Nowadays, the construction industries around the world face a major problem due to corrosion of s... more Nowadays, the construction industries around the world face a major problem due to corrosion of steel reinforcement. Glass Fibre Reinforced Polymer (GFRP) rebar emerged as a promising alternative to traditional steel reinforcement with excellent results in terms of corrosion resistance. The unique advantages of GFRP materials such as excellent resistance to corrosion, high strength to weight ratio, electromagnetic neutrality and ease of handling make these materials potentially suitable for the use in reinforced concrete under conditions where conventional steel reinforced concrete has resulted in unacceptable serviceable problem. This paper summarizes the most significant research work published on the flexural behaviour of Reinforced Concrete (RC) beams. A comprehensive review of the literature on the flexural behaviour of RC beams reinforced with steel and GFRP bars subjected to static and cyclic vertical loads.

Polymer Korea, 2016

This paper presents preparation of unidirectional aligned agave sisalana variegata fiber-reinforc... more This paper presents preparation of unidirectional aligned agave sisalana variegata fiber-reinforced vinyl ester composite laminates and their mechanical properties such as tensile, shear, flexural and impact strength. Wet hand layup technique was used for the preparation of composites. Mechanical tests were carried out for different weight percentage of fiber by varying the number of layers. Mechanical properties were analyzed as a function of wt%. The maximum tensile, flexural, impact and shear strength was observed on a composite designated as D. But the maximum tensile and flexural modulus values were identified in a composite designated as E. Experimental results were compared with theoretical results such as the rule of mixture and Bowyer and Bader model. Bowyer and Bader model was able to predict the strength and modulus of the composites better than the rule of the mixture model. The comparison between experimental and predicted values was also done by the student t test.

Journal of Composite Materials, 2015

In the present communication an effective parametric analysis on the mechanical properties (tensi... more In the present communication an effective parametric analysis on the mechanical properties (tensile and flexural strength) of bagasse fiber-reinforced vinyl ester (BFRVE) composites were conducted, and then the fabrication process parameters were optimized by using Taguchi and analysis of variance techniques. Composites plates were fabricated by Taguchi’s L18 experimental design as the function of process parameters such as fiber length, fiber content, fiber diameter, sodium hydroxide concentration and sodium hydroxide treatment duration. The optimum process parameters to obtain the maximum strength values were identified using signal-to-noise ratio calculations. Then, the results were analyzed to know the percentage contribution of each fabrication process parameter on the tensile and the flexural strength using analysis of variance. A multivariable non-linear regression model was developed to predict the strength values and compared with experimental strength values. The developed...

Polish Journal of Environmental Studies, 2021

Strojniški vestnik - Journal of Mechanical Engineering, 2015

In this paper, the Box-Behnken (BB) experimental design of response surface methodology (RSM) was... more In this paper, the Box-Behnken (BB) experimental design of response surface methodology (RSM) was utilized to study the effect of process parameters on the mechanical properties of agave sisalana variegata (ASV) fibre-reinforced vinyl ester (FRVE) composites. The fibre length, fibre content, and fibre diameter were used as process parameters to develop a model using the BB experimental design. Experimental tests were carried out based on the BB design. The experimental tensile and flexural strength values were fitted with the predicted strength values by a second-order polynomial equation via a multiple regression analysis. The results show that the tensile and flexural strength can be predicted by the developed models with more than 98.54 % of the variation in the tensile strength and 99.24 % of the variation in the flexural strength. The level 3 of fibre length (13 mm), level 2 of fibre content (35.19 wt %), and level 1 of fibre diameter (0.24 mm) were selected as the optimal levels of fabrication process parameters using the response surface graph and models. Finally, it was proved that the BB design of response surface methodology could efficiently be applied to the modelling and optimization of the mechanical properties of natural fibre polymer composites.

Revista de Chimie

The quality of water around a municipal dumpsite is greatly affected by the leaching chemicals fr... more The quality of water around a municipal dumpsite is greatly affected by the leaching chemicals from the landfill. The aim of this study is to assess the groundwater quality and to develop and compare the performance of Statistical Package of Social Science (SPSS) regression and Artificial Neural Network models around municipal dumpsite in Tamil Nadu, India. The groundwater samples were collected every month from the 16 sampling points during the study period from January 2013 to December 2017. The physico chemical parameters of the samples such as pH, acidity, alkalinity, Hardness, Chloride, Sulphate and Total Dissolved Solids (TDS) were analysed and Water Quality Index (WQI) was arrived. From this data, the highest and the lowest polluted points S14 and S5 respectively, among the 16 sampling points was found. Correlation analysis showed that TDS exhibited a high positive correlation with chloride and hardness. Two models using SPSS regression and one model using ANN modeling were d...

Polish Journal of Environmental Studies, 2015

This paper presents a survey of resistivity and groundwater quality around the solid waste dumpsi... more This paper presents a survey of resistivity and groundwater quality around the solid waste dumpsite of Tirunelveli Municipal Corporation at Ramaiyanpatti in the state of Tamilnadu, India. Water samples were collected and analysed for physico-chemical parameters in the study area. Electrical resistivity surveys were carried out in the study area. The physico-chemical analysis of groundwater as well as geophysical investigation revealed that there are considerable impacts of solid waste dumpsite leachate in the groundwater aquifer. To minimize the impact of such leachate of a dumpsite on groundwater quality and the environment in general, it is necessary to properly design, construct, and manage the dumpsite by engineering principles.

Journal of Advances in Chemistry, 2017

Sand researches around the world are in continuous search for the alternatives of sand. Fine aggr... more Sand researches around the world are in continuous search for the alternatives of sand. Fine aggregate is an important constituent of concrete and is required in large quantities. Generally, river sand is used as fine aggregate. Due to the increase in the utilization of concrete in construction sector, the need for river sand has been increased enormously. Hence, the abundant sea sand can be used as an alternative of river sand partially.The sea sand samples before (samples A and C) and after mineral extraction were utilized to replace for fine aggregate. The mineral extracted chiefly includes ilmenite, zircon, rutile, sillimanite and super garnet was confirmed by an analytical technique Energy-dispersive X-ray analysis (EDXA). Physical properties of these sands were recorded. Results reveal that the angle of internal friction (O) was high and low in sample A and C, but an opposite trend was observed for specific gravity. Except sample D, remaining samples belong to grade II size. ...

Nano science and technology is a new field of emergence in materials science and engineering, whi... more Nano science and technology is a new field of emergence in materials science and engineering, which forms the basis for evolution of novel technological materials. Nano technology finds application in various fields of science and technology. This report presents the influence of nano silica in mortar with the average diameter of 40 nm and to study the pore filling effect and its pozzolanic activity with cement towards improvement of mechanical properties and durability aspects. The strength, durability, microstructure and acoustical study of cement mortar incorporating nano-silica (NS) in various percentages such as 1%, 2%, 3%, 4% and 5% as a partial replacement of cement is compared with conventional mortar. The hardened properties of the mortar determined using compressive strength of all the specimens at the age of 7, 14 and 28 days. Durability properties have been carried out to determine the steel corrosion. The microstructure of the specimens has been determined by XRD and SE...

The buildings constructed in the present scenario are mostly irregular in geometry and elevation ... more The buildings constructed in the present scenario are mostly irregular in geometry and elevation for aesthetic view. These irregularities may also be due to economical feasibility, land availability and other factors. From the past earthquake, researches says that regularly configured structures stay safe in Earthquakes, but irregularly configured structures could not able to withstand effectively during an earthquake. Structures experience lateral deflections under earthquake loads. This work focuses on studying the various sorts of building irregularities possible and their behaviour during seismic forces. This study focuses on learning the parameters to be analysed while analyzing a structure for seismic force. The various structural behaviour parameters such as displacement, base shear, storey drift, stiffness, strength etc., are needed to be studied. Also to know the model analysis methods those are available for seismic analysis of a structure. Some model analysis methods are ...

The main objective of this study was to investigate the Durability studies of self-compacting con... more The main objective of this study was to investigate the Durability studies of self-compacting concrete (SCC) incorporating fly ash as partial cement replacement and copper slag as a replacement of fine aggregate along with the addition of super plasticizer. In the present study, durability test on cube measuring was performed in the laboratory & specimen changes to the SCC concrete cube. A small cube with different mixes of fly ash and copper slag (0%, 10% up to 50%) as partial replacement of cement and fine aggregate respectively with a water-binder ratio of 0.4% is adopted. To improve the workability of concrete, super plasticizer (glenium sky 8233) of 1% is added to the weight of cement. This replacement would prove to have some environment benefits and would be an economical (or) a cost effective technique in concreting for the future.

The buildings constructed in irregular configuration due to economical feasibility, land availabi... more The buildings constructed in irregular configuration due to economical feasibility, land availability and other factors. From the observations of past earthquakes, a structure with regular configuration structures stay safe in Earthquakes than an structure with irregularities. Structures experience lateral displacements under earthquake loads. This work focuses on studying the various sorts of building irregularities possible and their behaviour during earthquake forces. The various structural behaviour parameters such as displacement, base shear, storey drift, moment, end forces etc., are needed to be studied. The structures are designed and analysed by Time History Analysis using STAAD.PRO V8i software. From this analysis the results obtained shows that the base shear was higher in regular structure but the load transfer was uniform throughout its height. The L shaped structure showed a least performance during an earthquake.

Materiali in tehnologije, Oct 16, 2017

Several attempts were made to investigate the effects of various process parameters on the mechan... more Several attempts were made to investigate the effects of various process parameters on the mechanical properties and wear behavior of synthetic and natural cellulosic fibers and also particle-reinforced polymer composites. However, very few studies were carried out on the effects of various process parameters on the mechanical and wear behavior of phenol formaldehyde (PF) composites reinforced with natural cellulosic fibers and particles. Therefore, in the present study, an attempt was made to observe the effects of various process parameters on the mechanical and wear behavior of wood-dust (WD) and coir-pith (CP) particle-reinforced resole-type PF composites. First, the mechanical properties of a WD/PF composite were studied based on the content of CP particles. Then, the erosive-wear behavior of the WD/PF composite was studied with respect to five different parameters such particle content, erodent size, impact velocity, impingement angle, and standoff distance. The erosive experiments were carried out for five different parameters based on the Taguchi experimental design (L27). The results show that the mechanical properties of the WD/PF composite increase with an addition of CP particles. The increment in the composite modulus was higher than that of the composite strength. The erosive test results indicate that the erosion-wear rate is affected by the particle content, impingement angle, erodent size and impact velocity. Brittle-erosion behavior was identified on the surface of the composite with a heavy erosive wear occurring at a 60°impingement angle.

Cellular Lightweight Concrete (CLC) also known as Foamed concrete is one of the most significant ... more Cellular Lightweight Concrete (CLC) also known as Foamed concrete is one of the most significant type of concrete used for construction purposes due to its various advantages and usages over traditionally produced concrete. The rapid urbanization has led to the enormous increase in wastes being disposed of. This paper aims at identifying the possibility of using recycled materials such as crushed glass and plastic wastes in foam concrete as substitute filler for fine river sand. A protein based foaming agent is adopt for this study. The workability and strength of different mixes, made using performed foam, at varying densities using powdered glass and plastic wastes will be investigate. In this project foam concrete blocks are prepared according to the designed proportions to attain the maximum strength of 1900kg/ .In this project, the mixing of recycled glass wastes 5%, 10%, 15% and recycled plastic wastes 1%, 3%, 5% will add as a filler in foam concrete. The 7days, 14, 28days com...

paper on study of two dimensional dispersion of pollutants through porous media. The experimental... more paper on study of two dimensional dispersion of pollutants through porous media. The experimental setup consists of a transparent tank, made up of 6mm thick Acrylic Sheet with inner dimension of 100cm x 10cm cross-section and 75cm depth for soil compartment . An additional attachment of 40cm x 10cm cross-section and 100cm depth is divided into two compartment perforated (10mm dia holer at 5cm c/c) acrylic sheet of 6mm thick. The front and rear side of the sand compartment is graduated with 1 sq.cm. Drains are provided at 3 places at the bottom of the compartment to replace the media. Sand was used as a porous media. The properties of the sand were found out from various experiments. Chemical pollutant chloride is supplied in the form of Sodium Chloride injection. Various concentrations of pollutants were tried. At every 5 minutes interval, the outlet samples were collected and analyzed for Chloride concentration. From the observed readings the break through curves are drawn. The dis...

JOURNAL OF ADVANCES IN CHEMISTRY

In this study, Wood Dust (WD)/Phenol Formaldehyde (PF) and Coir Pith (CP)/PF composites were hybr... more In this study, Wood Dust (WD)/Phenol Formaldehyde (PF) and Coir Pith (CP)/PF composites were hybridized with the Prosopis Juliflora Fiber (PJF) to obtain the hybrid composites. Composites were prepared by hand moulding technique. The weight percentage of particles and fibers are fixed in the ratio of 1:1. Mechanical properties such as tensile, flexural and impact strengths were evaluated as a function of the particle and fiber loadings. The results show that the properties of both the WD and CP composites obviously improved by the addition of the PJF. The improvement in WD/PF composites was obviously higher than the CP/PF composites for all loadings. The WD/PJF/PF hybrid composites exhibited better tensile (strength of 48.9 MPA and modulus of 1262.1 MPa, respectively), flexural (strength of 55.4 MPa and modulus of 1344.3 MPa, respectively), and impact properties (1.32 KJ/m2).Â

International Journal for Research in Applied Science and Engineering Technology

JOURNAL OF ADVANCES IN CHEMISTRY

Mechanical properties such as tensile, flexural and impact, of randomly oriented Calotropis Gigan... more Mechanical properties such as tensile, flexural and impact, of randomly oriented Calotropis Gigantea Fiber (CGF) -reinforced Phenol Formaldehyde (PF) biocomposites were studied based on the five different fiber loadings (10, 20, 30, 40, and 50 vol%) and three different fiber lengths (3, 9, and 15 mm). The critical fiber length and optimum fiber loading were identified with the maximum level of mechanical properties in this composite. The fractured surfaces of composites after testing were studied by scanning electron microscope (SEM). The results revealed that the addition of CGFs is improving the mechanical properties of the PF composite. The properties of composites reach the properties of the neat resin sample at 20 vol% of all the cases. The critical fiber length and the optimum fiber loading to obtain the maximum mechanical properties were identified as 9 mm and 40 vol% respectively. Experimental tensile property values were compared with theoretical values and found to be in g...

Fibres and Textiles in Eastern Europe

In this paper, an attempt was made to use Prosopis juliflora fibres (PJFs) as a reinforcing agent... more In this paper, an attempt was made to use Prosopis juliflora fibres (PJFs) as a reinforcing agent for phenol formaldehyde (PF) composites. Mechanical properties of the composites were studied for various fibre aspect ratios (FAR) and fibre loadings (FL). A scanning electron microscope (SEM) was used to study the fractured surface of the composites. The peak range of mechanical properties was identified for composites with a FAR of 136 and fibre loading of 23.53 wt%. This study shows that the optimum FAR and fibre loading for PJFs were found to be 136 and 23.53 wt% in order to achieve good reinforcement with better mechanical properties in the PF resin matrix. Experimental results were observed to be in very good agreement with the theoretical.