Experimental Study on Rice Husk Ash for Optimum Level of Replacement of Cement in Concrete

Rambabu, P.; Varma, Vaughn; Ramarao, G.

doi:10.17577/ijertv4is100395

Cited by 2 publications

(2 citation statements)

References 1 publication

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“…Rice mills generate 20% rice husk from every paddy ton, which is then used as fuel in the boiler to produce electricity for the mill. Approximately 25% of the rice husk is converted into solid waste known as RHA [14], both Rice Husk and RHA are shown in Figure 1. Being a waste product produced by the rice mills, it has very little to none commercial value, thus is disposed causing health issues to the inhabitants nearby.…”

Section: Rice Husk Ash (Rha)mentioning

confidence: 99%

Green and Sustainable Concrete – The Potential Utilization of Rice Husk Ash and Egg Shells

Jhatial

Goh

et al. 2019

Civ Eng J

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Concrete which is widely used material in the construction industry, has a carbon footprint. Approximately 10% of global Carbon Dioxide (CO2) gas is emitted during the production of cement which is vital ingredient of concrete. The increase in production of cement affects global warming and climate change. Therefore, many have attempts have been made to develop green and sustainable concrete by utilizing different waste materials. With the utilization of waste materials as cement replacement, the CO2 gas emissions can be reduced as well as resolve the environmental issues that the inhabitants face during the disposal of such waste materials. This paper reviews the potential and innovative utilization of Rice Husk Ash (RHA) and Eggshells as partial cement replacement to develop green concrete. RHA which is rich in silica and eggshells contain identical amount of calcium oxide as cement, when finely grinded and used together as partial cement replacement, can trigger a pozzolanic reaction, in which silica reacts with calcium oxide resulting in the formation of calcium silicates which are responsible for achieving higher strengths.

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Section: Rice Husk Ash (Rha)mentioning

confidence: 99%

Green and Sustainable Concrete – The Potential Utilization of Rice Husk Ash and Egg Shells

Jhatial

Goh

et al. 2019

Civ Eng J

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“…Also, 5 to 15% sugarcane bagasse ash increased the compressive strength and workability of concrete [45][46][47], while other authors have recorded compressive strength produced from sugarcane bagasse ash that was higher than cement concrete alone at 5% replacement or more [48][49][50][51]. An excessive increase in the percentage replacement of bagasse ash could result in reduced strength of concrete [52][53][54][55].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on Mechanical Properties of Concrete Blended with Costus englerianus Bagasse Ash and Bagasse Fibre as Partial Replacement for Lime and Cement

Bheel

Kennedy

Awoyera

et al. 2022

Advances in Civil Engineering

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Nowadays, researchers have been on the lookout for eco-sustainable additives such as agro/industrial waste in concrete in order to offset the carbon footprint created by cement manufacturing. However, it has been said that the use of agro/industrial-waste-based cementitious materials in concrete improves its quality. However, this study compared the performance of hydrated lime and cement concrete replaced with 5% and 10% Costus englerianus bagasse ash and bagasse fibre for determining the mechanical properties (compressive and flexural strength). Moreover, compressive strength was evaluated on cubical specimens and flexural strength was evaluated on beam samples at 7, 14, and 28 days, respectively. Results showed that the compressive strength and flexural strength of the concretes increased with an increase in the curing age. Also, the compressive and flexural strengths of cement concrete were recorded by 65.38 MPa and 10.86 MPa at 0% bagasse ash or fibre, which performed better than concrete replaced with 5% and 10% bagasse ash and fibre at 28 days, respectively. Besides, the compressive strength of concrete was noted by 53.85 MPa and 48.92 MPa at 10% bagasse ash and 10% bagasse fibre, respectively, while the flexural strength was calculated by 6.86 MPa and 5.54 MPa at 10% bagasse ash and 10% bagasse fibre, respectively, which were higher than that of concrete produced with hydrated lime alone at 28 days. Thus, bagasse ash performed better than bagasse fibre ash as a partial replacement of cement or hydrated lime in concrete production. Therefore, Costus englerianus bagasse ash or bagasse fibre improved the performance of hydrated lime concrete at 5–10% replacement, but higher concrete strength would be obtained in cement replacement than hydrated lime.

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Experimental Study on Rice Husk Ash for Optimum Level of Replacement of Cement in Concrete

Cited by 2 publications

References 1 publication

Green and Sustainable Concrete – The Potential Utilization of Rice Husk Ash and Egg Shells

Green and Sustainable Concrete – The Potential Utilization of Rice Husk Ash and Egg Shells

Comparative Study on Mechanical Properties of Concrete Blended with Costus englerianus Bagasse Ash and Bagasse Fibre as Partial Replacement for Lime and Cement

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