TANIMKI CHANDRA SEKHAR RAO - Academia.edu (original) (raw)
Uploads
Papers by TANIMKI CHANDRA SEKHAR RAO
IOP Conference Series: Earth and Environmental Science, 2022
The present climatic changes are occurring because of the various activities of the humans such a... more The present climatic changes are occurring because of the various activities of the humans such as urbanization and increasing threat of green-house gas (GHG) emissions resulted in precipitation increase in many geographical areas. In view of this, OPC based pervious concrete (PC) was developed in order to enhance the sustainability of the urban drainage systems (UDS). No fines concrete also coined as OPC based pervious concrete (PC) which is a versatile material with high porosity content applicable in flat work applications which allows the water from various sources such as precipitation and other sources to flow through and in turn recharges the ground water levels. Apart from these aspects, PC can significantly decrease the solar radiation absorption and urban heat storing potential which leads to the protection of the environment as well as the health and safety of the human beings. Generally, no fines concrete generally consists of cementitious paste to overlay the coarse agg...
International Journal of Research in Engineering and Technology, 2016
Geo polymer concrete is one of the emerging construction material as a substitute for conventiona... more Geo polymer concrete is one of the emerging construction material as a substitute for conventional cement concrete, eliminating the usage of OPC. This work is aimed to cast and testing of geopolymer slab elements with restrained edge condition. The size of slab panel is 1m x 1m x 0.05 m. By using yield line theory, the moment of resistance and maximum deflection under flexural loading are calculated for the of GPC slabs. Reinforcement details of these slabs are calculated using ultimate load method as per IS code provisions. As the slab element is a composite material the experimental work is carried for determination of mechanical properties GPC matrix and casting and testing of slab elements under UDL. Test results are compared with the theoretical computations for bending moment and maximum deflections. The crack pattern of slabs in experimental work is also compared with yield line patterns (Developed for RCC).From the test results it is observed that the behaviour of GPC slabs under flexural loading is similar to conventional concrete slabs
Journal of the Institution of Engineers. India. Civil Engineering Division, 2009
This paper presents an experimental study on the strength and behavioural aspects of voided ferro... more This paper presents an experimental study on the strength and behavioural aspects of voided ferrocement channel type beams for pre-cast purposes. As these beams are lighter in weight, these find their place in seismic resistant design of structures. Forty-eight channel type (24 solid and 24 voided) ferrocement beams were cast and tested under four-point loading. The variable parameters included the number of layers of wire mesh and shear span to depth (a/d) ratio. From the test results, it is observed that the cracking and ultimate shear strength of solid and voided beams increases as the a/d ratio is decreased and volume fraction of mesh reinforcement is increased. As the number of mesh layers is increased the post cracking ductility of the ferrocement beams also increases. It is also found that, up to a shear span to depth ratio of three, shear behaviour is predominant. Beyond shear span to depth ratio three, the flexural behaviour is predominant for both solid and voided beams. A...
Geo polymer concrete is one of the emerging construction material as a substitute for conventiona... more Geo polymer concrete is one of the emerging construction material as a substitute for conventional cement concrete, eliminating the usage of OPC. This work is aimed to cast and testing of geopolymer slab elements with restrained edge condition. The size of slab panel is 1m x 1m x 0.05 m. By using yield line theory, the moment of resistance and maximum deflection under flexural loading are calculated for the of GPC slabs. Reinforcement details of these slabs are calculated using ultimate load method as per IS code provisions. As the slab element is a composite material the experimental work is carried for determination of mechanical properties GPC matrix and casting and testing of slab elements under UDL. Test results are compared with the theoretical computations for bending moment and maximum deflections. The crack pattern of slabs in experimental work is also compared with yield line patterns (Developed for RCC).From the test results it is observed that the behaviour of GPC slabs ...
Solid State Technology, 2020
This study furnishes the properties of a binary blended Geopolymer concrete that is prepared by u... more This study furnishes the properties of a binary blended Geopolymer concrete that is prepared by using industrial waste exhausts i.e., fly ash and GGBS as source materials at a proportion of (50%+50%). An experimental study was carried out in two phases. In phase I, an effort was made to produce binary blended Geopolymer concrete with different molarity concentrations of NaOH ranging from 8-16 M with an increment of 2 M concentration and the compressive strength of normal (M30) and high strength (M70) grade GPC is studied for a period of 1,3,7,14 and 28 days of ambient curing. The test results revealed that the compressive strength increases with increase in molarity concentration up to 12M. In the second phase of study, the mechanical characteristics of binary blended GPC are studied and reported. An equation was proposed to determine the compressive strength based on the molarity concentration of NaOH. Keywords- Industrial Waste Exhausts, Molarity, Mechanical Characteristics.
International Journal of ChemTech Research
Carbon dioxide is liberated in huge amounts by the manufacturing of Portland Pozzolana Cement. No... more Carbon dioxide is liberated in huge amounts by the manufacturing of Portland Pozzolana Cement. Normally, conventional concrete is manufactured with Portland cement, which acts as a binder. The production of cement emits CO2 into the atmosphere, which is a green house gas and causes the environmental pollution. Considering this as a serious environmental problem, there is a need to develop sustainable alternatives to Portland cement utilizing the industrial byproducts such as fly ash, ground granulated blast furnace slag and Metakaoline which are pozzolonic in nature. It has been established that fly ash can replace cement partially. In this context, a new material was developed known as ‖Geopolymer‖. In this study, the various parameters on the short term engineering properties of fresh and hardened properties of Geopolymer Mortar were studied. In the present investigation, cement is replaced by geopolymer source material and water is replaced by alkaline activator consisting of Sod...
Technium: Romanian Journal of Applied Sciences and Technology
The utilisation of pozzolanic materials as the replacement to conventional cement material have t... more The utilisation of pozzolanic materials as the replacement to conventional cement material have the potentiality to mitigate the pollution caused by the émission of carbon based green house gases which are a main source for global warming problem. For every production of 1 ton of cement it was approximated that the emission of carbon based green house gases are about 1 ton. Keeping this in view, a new material called Geopolymer which was first coined by Davidovits has gained a lot of interest by the researchers. In this study, different molarity variations of NaOH in the order of 4M, 6M, 8M, 10M, 12M and 14M and also the blending of mineral admixtures like Fly Ash and Ground Granulated Blast Furnace Slag with percentages (50%+50%) and the mechanical properties of normal M30 and high strength grade M70 binary blended Geopolymer concrete were studied after 28 days of ambient curing and were reported. The test results revealed that the effect of molar concentration of NaOH at 12 M is ...
IOP Conference Series: Earth and Environmental Science, 2022
The present climatic changes are occurring because of the various activities of the humans such a... more The present climatic changes are occurring because of the various activities of the humans such as urbanization and increasing threat of green-house gas (GHG) emissions resulted in precipitation increase in many geographical areas. In view of this, OPC based pervious concrete (PC) was developed in order to enhance the sustainability of the urban drainage systems (UDS). No fines concrete also coined as OPC based pervious concrete (PC) which is a versatile material with high porosity content applicable in flat work applications which allows the water from various sources such as precipitation and other sources to flow through and in turn recharges the ground water levels. Apart from these aspects, PC can significantly decrease the solar radiation absorption and urban heat storing potential which leads to the protection of the environment as well as the health and safety of the human beings. Generally, no fines concrete generally consists of cementitious paste to overlay the coarse agg...
International Journal of Research in Engineering and Technology, 2016
Geo polymer concrete is one of the emerging construction material as a substitute for conventiona... more Geo polymer concrete is one of the emerging construction material as a substitute for conventional cement concrete, eliminating the usage of OPC. This work is aimed to cast and testing of geopolymer slab elements with restrained edge condition. The size of slab panel is 1m x 1m x 0.05 m. By using yield line theory, the moment of resistance and maximum deflection under flexural loading are calculated for the of GPC slabs. Reinforcement details of these slabs are calculated using ultimate load method as per IS code provisions. As the slab element is a composite material the experimental work is carried for determination of mechanical properties GPC matrix and casting and testing of slab elements under UDL. Test results are compared with the theoretical computations for bending moment and maximum deflections. The crack pattern of slabs in experimental work is also compared with yield line patterns (Developed for RCC).From the test results it is observed that the behaviour of GPC slabs under flexural loading is similar to conventional concrete slabs
Journal of the Institution of Engineers. India. Civil Engineering Division, 2009
This paper presents an experimental study on the strength and behavioural aspects of voided ferro... more This paper presents an experimental study on the strength and behavioural aspects of voided ferrocement channel type beams for pre-cast purposes. As these beams are lighter in weight, these find their place in seismic resistant design of structures. Forty-eight channel type (24 solid and 24 voided) ferrocement beams were cast and tested under four-point loading. The variable parameters included the number of layers of wire mesh and shear span to depth (a/d) ratio. From the test results, it is observed that the cracking and ultimate shear strength of solid and voided beams increases as the a/d ratio is decreased and volume fraction of mesh reinforcement is increased. As the number of mesh layers is increased the post cracking ductility of the ferrocement beams also increases. It is also found that, up to a shear span to depth ratio of three, shear behaviour is predominant. Beyond shear span to depth ratio three, the flexural behaviour is predominant for both solid and voided beams. A...
Geo polymer concrete is one of the emerging construction material as a substitute for conventiona... more Geo polymer concrete is one of the emerging construction material as a substitute for conventional cement concrete, eliminating the usage of OPC. This work is aimed to cast and testing of geopolymer slab elements with restrained edge condition. The size of slab panel is 1m x 1m x 0.05 m. By using yield line theory, the moment of resistance and maximum deflection under flexural loading are calculated for the of GPC slabs. Reinforcement details of these slabs are calculated using ultimate load method as per IS code provisions. As the slab element is a composite material the experimental work is carried for determination of mechanical properties GPC matrix and casting and testing of slab elements under UDL. Test results are compared with the theoretical computations for bending moment and maximum deflections. The crack pattern of slabs in experimental work is also compared with yield line patterns (Developed for RCC).From the test results it is observed that the behaviour of GPC slabs ...
Solid State Technology, 2020
This study furnishes the properties of a binary blended Geopolymer concrete that is prepared by u... more This study furnishes the properties of a binary blended Geopolymer concrete that is prepared by using industrial waste exhausts i.e., fly ash and GGBS as source materials at a proportion of (50%+50%). An experimental study was carried out in two phases. In phase I, an effort was made to produce binary blended Geopolymer concrete with different molarity concentrations of NaOH ranging from 8-16 M with an increment of 2 M concentration and the compressive strength of normal (M30) and high strength (M70) grade GPC is studied for a period of 1,3,7,14 and 28 days of ambient curing. The test results revealed that the compressive strength increases with increase in molarity concentration up to 12M. In the second phase of study, the mechanical characteristics of binary blended GPC are studied and reported. An equation was proposed to determine the compressive strength based on the molarity concentration of NaOH. Keywords- Industrial Waste Exhausts, Molarity, Mechanical Characteristics.
International Journal of ChemTech Research
Carbon dioxide is liberated in huge amounts by the manufacturing of Portland Pozzolana Cement. No... more Carbon dioxide is liberated in huge amounts by the manufacturing of Portland Pozzolana Cement. Normally, conventional concrete is manufactured with Portland cement, which acts as a binder. The production of cement emits CO2 into the atmosphere, which is a green house gas and causes the environmental pollution. Considering this as a serious environmental problem, there is a need to develop sustainable alternatives to Portland cement utilizing the industrial byproducts such as fly ash, ground granulated blast furnace slag and Metakaoline which are pozzolonic in nature. It has been established that fly ash can replace cement partially. In this context, a new material was developed known as ‖Geopolymer‖. In this study, the various parameters on the short term engineering properties of fresh and hardened properties of Geopolymer Mortar were studied. In the present investigation, cement is replaced by geopolymer source material and water is replaced by alkaline activator consisting of Sod...
Technium: Romanian Journal of Applied Sciences and Technology
The utilisation of pozzolanic materials as the replacement to conventional cement material have t... more The utilisation of pozzolanic materials as the replacement to conventional cement material have the potentiality to mitigate the pollution caused by the émission of carbon based green house gases which are a main source for global warming problem. For every production of 1 ton of cement it was approximated that the emission of carbon based green house gases are about 1 ton. Keeping this in view, a new material called Geopolymer which was first coined by Davidovits has gained a lot of interest by the researchers. In this study, different molarity variations of NaOH in the order of 4M, 6M, 8M, 10M, 12M and 14M and also the blending of mineral admixtures like Fly Ash and Ground Granulated Blast Furnace Slag with percentages (50%+50%) and the mechanical properties of normal M30 and high strength grade M70 binary blended Geopolymer concrete were studied after 28 days of ambient curing and were reported. The test results revealed that the effect of molar concentration of NaOH at 12 M is ...