K Chinnaraju - Academia.edu (original) (raw)
Papers by K Chinnaraju
Cement Wapno Beton
Conservation of natural resources and effective management of waste materials that can harm our e... more Conservation of natural resources and effective management of waste materials that can harm our environment is a challenging phenomenon. This paper is focused to study the different properties of M30 grade concrete where the coarse aggregate has been completely replaced by commercially available sintered fly ash aggregate and it has proved to meet the target strength. To further improve the crack resisting behavior and tensile strength,basalt fibers was incorporated. The incorporation of fibers has improved the mechanical properties to around 3-4%. The RCPT and water absorption test has proved that the durability properties of sintered fly ash aggregate are within the standard specified.
Canadian Journal of Civil Engineering
The present work aims to create an insight into the emergence of bio-based nanomaterials as a sus... more The present work aims to create an insight into the emergence of bio-based nanomaterials as a sustainable additive in cement-based structures. This paper addresses the alkali–aggregate reaction in foamed concrete (FC) containing nano cuttlebone powder as a bio-filler and glass powder as a cement replacement. Experimental results show that the expansion of FC depends on the foam volume, and the expansion values increase with increasing glass content. Relationship studies between the mechanical strength and the expansion values were done to indicate the impact of expansion on strength decrement. At normal conditions, nano bio-carbonate fillers functioned as inert fillers and mitigated the concrete expansion in the presence of alkali. Furthermore, energy dispersive spectroscopy (EDS) analysis done on the FC mixes showed the effect of the decreasing CaO/SiO2 and Na2O/SiO2 ratios on increasing the mechanical strength, which indicated that nano bio-carbonate fillers can effectively reduce...
caused pollution to the environment due to the emission of CO2. As such, alternative material had... more caused pollution to the environment due to the emission of CO2. As such, alternative material had been introduced to replace OPC in the concrete. Fly ash is a by-product from the coal industry, which is widely available in the world. Moreover, the use of fly ash is environmental friendly and save cost compared to OPC. Fly ash is rich in silicate and alumina, hence it reacts with alkaline solution to produce alumina silicate gel that binds the aggregate to produce a good concrete. The compressive strength increases with the increasing of fly ash fineness and thus the reduction in porosity can be obtained. Fly ash based geo polymer also provided better resistance against aggressive environment and elevated temperature compared to normal concrete. In this present investigation the strength properties of different concentration of molarity of fly ash- geo polymer concrete by partially replacing fly ash by Silica fume was studied. It is concluded that higher concentration of molarity and...
Construction and Building Materials, 2016
In this article, attempt has been made to improve the performance of self compacting concrete usi... more In this article, attempt has been made to improve the performance of self compacting concrete using fly ash and glass fiber. Self compacting concrete was first developed in 1988 to achieve durable concrete structures. Since then, various investigations have been carried out and this type of concrete has been used in practical structures in Japan, mainly by large construction companies. SCC can also be used in situation where it is difficult or impossible to use mechanical compaction for fresh concrete, such as underwater concreting, cast in-situ pile foundations, machine bases and columns or wall with congested reinforcement. Self compacting concrete has significant environmental advantages in compaction to the vibrated concrete. The self compacting concrete must meet the filling ability and passing ability with uniform composition throughout the process of transport and placing. Hence, Self compacting concrete demands large amount of powder (cementitious and pozzolanic materials) c...
Materiali in tehnologije, 2016
International Journal of Construction Engineering and Planning, May 20, 2019
In this article, attempt has been made to improve the performance of self compacting concrete usi... more In this article, attempt has been made to improve the performance of self compacting concrete using recycled coarse aggregate. Self compacting concrete has significant environmental advantages in compaction to the vibrated concrete. Absence of noise and vibrations during installing provides healthier working environment. In general, there is a scarcity of coarse aggregate throughout the world. Consumption of large amount of coarse aggregate affects the environment. For the purpose of reducing the consumption of coarse aggregate there is a need for an alternative coarse aggregate arises. Recycled aggregates are obtained from the demolition of buildings, culverts and also by-products from the industries. Hence, partial replacement of coarse aggregate by recycled aggregate is researched in this article, in view of consuming the ecological balance. The fresh and hardened properties of Self Compacting Concrete (SCC) using recycled concrete were evaluated. Four series of SCC mixtures were...
Concrete is the third largest material consumed by human beings after food and water as per WHO. ... more Concrete is the third largest material consumed by human beings after food and water as per WHO. Concrete plays a vital role in the design and construction of the nation’s infrastructure. Almost three quarters of the volume of concrete is composed of aggregates. These are obtained from natural rocks and river beds, thus degrading them slowly. This issue of environmental degradation, and need for aggregates demands for the usage of any other alternative source. Thus the concept of replacement of coarse aggregate with steel slag and fine aggregate with ecosand seems to be promising. In this study an attempt is made to use steel slag, a by-product from steel industry as replacement for coarse aggregate in concrete and eco sand which is a commercial by-product of cement manufacturing process introduced by ACC Cements as fine aggregate replacement. Initial optimization of materials was done with 7 days strength. M30 grade of concrete was used. Possible optimum replacement of slag materia...
Construction and Building Materials
Asian Journal of Research in Social Sciences and Humanities
Construction and Building Materials
Construction and Building Materials, 2016
Structural Concrete, 2010
Cement Wapno Beton
Conservation of natural resources and effective management of waste materials that can harm our e... more Conservation of natural resources and effective management of waste materials that can harm our environment is a challenging phenomenon. This paper is focused to study the different properties of M30 grade concrete where the coarse aggregate has been completely replaced by commercially available sintered fly ash aggregate and it has proved to meet the target strength. To further improve the crack resisting behavior and tensile strength,basalt fibers was incorporated. The incorporation of fibers has improved the mechanical properties to around 3-4%. The RCPT and water absorption test has proved that the durability properties of sintered fly ash aggregate are within the standard specified.
Canadian Journal of Civil Engineering
The present work aims to create an insight into the emergence of bio-based nanomaterials as a sus... more The present work aims to create an insight into the emergence of bio-based nanomaterials as a sustainable additive in cement-based structures. This paper addresses the alkali–aggregate reaction in foamed concrete (FC) containing nano cuttlebone powder as a bio-filler and glass powder as a cement replacement. Experimental results show that the expansion of FC depends on the foam volume, and the expansion values increase with increasing glass content. Relationship studies between the mechanical strength and the expansion values were done to indicate the impact of expansion on strength decrement. At normal conditions, nano bio-carbonate fillers functioned as inert fillers and mitigated the concrete expansion in the presence of alkali. Furthermore, energy dispersive spectroscopy (EDS) analysis done on the FC mixes showed the effect of the decreasing CaO/SiO2 and Na2O/SiO2 ratios on increasing the mechanical strength, which indicated that nano bio-carbonate fillers can effectively reduce...
caused pollution to the environment due to the emission of CO2. As such, alternative material had... more caused pollution to the environment due to the emission of CO2. As such, alternative material had been introduced to replace OPC in the concrete. Fly ash is a by-product from the coal industry, which is widely available in the world. Moreover, the use of fly ash is environmental friendly and save cost compared to OPC. Fly ash is rich in silicate and alumina, hence it reacts with alkaline solution to produce alumina silicate gel that binds the aggregate to produce a good concrete. The compressive strength increases with the increasing of fly ash fineness and thus the reduction in porosity can be obtained. Fly ash based geo polymer also provided better resistance against aggressive environment and elevated temperature compared to normal concrete. In this present investigation the strength properties of different concentration of molarity of fly ash- geo polymer concrete by partially replacing fly ash by Silica fume was studied. It is concluded that higher concentration of molarity and...
Construction and Building Materials, 2016
In this article, attempt has been made to improve the performance of self compacting concrete usi... more In this article, attempt has been made to improve the performance of self compacting concrete using fly ash and glass fiber. Self compacting concrete was first developed in 1988 to achieve durable concrete structures. Since then, various investigations have been carried out and this type of concrete has been used in practical structures in Japan, mainly by large construction companies. SCC can also be used in situation where it is difficult or impossible to use mechanical compaction for fresh concrete, such as underwater concreting, cast in-situ pile foundations, machine bases and columns or wall with congested reinforcement. Self compacting concrete has significant environmental advantages in compaction to the vibrated concrete. The self compacting concrete must meet the filling ability and passing ability with uniform composition throughout the process of transport and placing. Hence, Self compacting concrete demands large amount of powder (cementitious and pozzolanic materials) c...
Materiali in tehnologije, 2016
International Journal of Construction Engineering and Planning, May 20, 2019
In this article, attempt has been made to improve the performance of self compacting concrete usi... more In this article, attempt has been made to improve the performance of self compacting concrete using recycled coarse aggregate. Self compacting concrete has significant environmental advantages in compaction to the vibrated concrete. Absence of noise and vibrations during installing provides healthier working environment. In general, there is a scarcity of coarse aggregate throughout the world. Consumption of large amount of coarse aggregate affects the environment. For the purpose of reducing the consumption of coarse aggregate there is a need for an alternative coarse aggregate arises. Recycled aggregates are obtained from the demolition of buildings, culverts and also by-products from the industries. Hence, partial replacement of coarse aggregate by recycled aggregate is researched in this article, in view of consuming the ecological balance. The fresh and hardened properties of Self Compacting Concrete (SCC) using recycled concrete were evaluated. Four series of SCC mixtures were...
Concrete is the third largest material consumed by human beings after food and water as per WHO. ... more Concrete is the third largest material consumed by human beings after food and water as per WHO. Concrete plays a vital role in the design and construction of the nation’s infrastructure. Almost three quarters of the volume of concrete is composed of aggregates. These are obtained from natural rocks and river beds, thus degrading them slowly. This issue of environmental degradation, and need for aggregates demands for the usage of any other alternative source. Thus the concept of replacement of coarse aggregate with steel slag and fine aggregate with ecosand seems to be promising. In this study an attempt is made to use steel slag, a by-product from steel industry as replacement for coarse aggregate in concrete and eco sand which is a commercial by-product of cement manufacturing process introduced by ACC Cements as fine aggregate replacement. Initial optimization of materials was done with 7 days strength. M30 grade of concrete was used. Possible optimum replacement of slag materia...
Construction and Building Materials
Asian Journal of Research in Social Sciences and Humanities
Construction and Building Materials
Construction and Building Materials, 2016
Structural Concrete, 2010