Efficiency of Rice Husk Ash as Cementitious Material in High‐Strength Cement‐Admixed Clay

Jongpradist, Pornkasem; Homtragoon, Watee; Sukkarak, Raksiri; Kongkitkul, Warat; Jamsawang, Pitthaya

doi:10.1155/2018/8346319

Cited by 67 publications

(49 citation statements)

References 34 publications

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“…The study founds interesting results after mixing RHA in clay with cement. The results suggest that favourable results could be obtained by adding 35% RHA and 10% cement in clay [26]. The partial replacement of cement by Rice Husk was also studied by other authors such as Bhusan R. et.al (2017).…”

Section: Introductionmentioning

confidence: 63%

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Experimental Study on Recycled Concrete Aggregates with Rice Husk Ash as Partial Cement Replacement

et al. 2018

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Concrete is highly utilized construction material around the globe and responsible for high depreciation of the raw materials. Consumption of this material in construction industry is arching upward day by day. On the other hand, debris of demolished concrete structures are being dumped as waste. For developing countries such waste is not a good sign and need its proper utilization by recycling it into useful product. In this consequence, this study is an attempt to utilize demolished waste concrete by converting into coarse aggregates. This research was conducted on recycled cement concrete aggregates of demolished structures and Rice Husk Ash (RHA). The purpose of this experimental study is to analyze the mechanical properties of concrete; when cement is partially replaced with RHA and natural aggregates by recycled aggregates (RA). In this study, the cement was replaced by RHA up to 10% by weight of cement. For experimental purpose, total 135 concrete specimens were prepared, cured and tested in Universal Testing Machine (UTM). Finally, laboratory results were compared in terms of compressive and splitting tensile strength made with normal and recycled coarse aggregates. All the specimens were prepared at 1:1.5:3 with 0.50 w/c ratio and tested at 7, 14, 21, 28 and 56 days curing ages. It is observed from experimental analysis that the workability of fresh normal concrete is 7% and 10% greater than recycled aggregates concrete blended with 10% RHA and only recycled aggregates concrete without RHA respectively. The compressive strength increases up to 6%, whilst splitting tensile strength increases 4% at 56 days curing, when the cement is replaced 10% by RHA. It is, further, concluded that with more than 10% RHA replacement with cement, the compressive strength decreases. This study would help the construction experts to use such wasted concrete into useable production of new concrete projects.

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Section: Introductionmentioning

confidence: 63%

“…Many researches are carried out on utilizing of industrial waste/agricultural waste such as fly ash, corn cob ash, metakaolin, bagasse ash and RHA during past two decades such as [23][24][25][26]. Rice Husk is also utilised in clay to increase the unconfined compressive strength.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Recycled Concrete Aggregates with Rice Husk Ash as Partial Cement Replacement

et al. 2018

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“…Another examination demonstrated that the strength of cement blended with clay was increased by over 100% at 28 days and this phenomenon was mainly ascribed due to presence of the RHA particles. At curing times of 14 and 28 days, RHA displays greater proficiency on Portland concrete substitution when the cementitious substance is at the very least 20% and 35% [99]. The impact of ligno-sulfonate (LS) and CaCl 2 has been examined on the setting times, with the accumulation of 2% of CaC1 2 , 1% ligno-sulfonate (LS) and 1% ligno-sulfonate (LS) + 2% CaCl 2 .…”

Section: Setting Timementioning

confidence: 99%

Rice Husk Ash-Based Concrete Composites: A Critical Review of Their Properties and Applications

et al. 2021

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In the last few decades, the demand for cement production increased and caused a massive ecological issue by emitting 8% of the global CO2, as the making of 1 ton of ordinary Portland cement (OPC) emits almost a single ton of CO2. Significant air pollution and damage to human health are associated with the construction and cement industries. Consequently, environmentalists and governments have ordered to strongly control emission rates by using other ecofriendly supplemental cementing materials. Rice husk is a cultivated by-product material, obtained from the rice plant in enormous quantities. With no beneficial use, it is an organic waste material that causes dumping issues. Rice husk has a high silica content that makes it appropriate for use in OPC; burning it generates a high pozzolanic reactive rice husk ash (RHA) for renewable cement-based recyclable material. Using cost-effective and commonly obtainable RHA as mineral fillers in concrete brings plentiful advantages to the technical characteristics of concrete and to ensure a clean environment. With RHA, concrete composites that are robust, highly resistant to aggressive environments, sustainable and economically feasible can be produced. However, the production of sustainable and greener concrete composites also has become a key concern in the construction industries internationally. This article reviews the source, clean production, pozzolanic activity and chemical composition of RHA. This literature review also provides critical reviews on the properties, hardening conditions and behaviors of RHA-based concrete composites, in addition to summarizing the research recent findings, to ultimately produce complete insights into the possible applications of RHA as raw building materials for producing greener concrete composites—all towards industrializing ecofriendly buildings.

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“…Sandhu and Siddique173 concluded that RHA acts as a concrete filler with reduced land‐filling costs and also provides a cleaner sustainable environmental solution, saving energy and reducing carbon dioxide generation by cement consumption. The ground ash of RH is partially filled in cement concrete, which improves the properties of the concrete 174. The addition of the 10 wt% RHA in composite can improve the compressive strength, fire, and acid resistance of the as‐prepared composite, which is suitable for making load‐bearing bricks for buildings 175.…”

Section: Second Generation Agricultural Wastes and Their Usesmentioning

confidence: 99%

Biomass as a sustainable resource for value‐added modern materials: a review

Sharma

Kaur

Punj

et al. 2020

Biofuels Bioprod Bioref

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Over the past century, the world's population has increased greatly. The growth in the population has increased the global food demand, so the food sector has increased its production. As a result of the increased production and consumption, a huge amount of agro-food waste is being generated yearly. Rice husk, wheat straw, sugarcane bagasse, corn husk, peanut shell, eggshell, are just a few examples of agro-food wastes. As these agro-food wastes and their by-products are left unused and unattended, their amount is increasing globally. It is imperative to find ways to put these wastes to environmentally viable use. These wastes find direct uses in biofertilizers, mud houses, animal feed, biofuel, and heat generation in small-scale industries, etc. After heat generation, ashes are considered as a secondary by-product, which can be used as a sustainable and renewable resource for synthesizing value-added products for various applications. This article presents a review of the traditional and advanced methods of utilizing these wastes in household applications, animal feed, fertilizers, fuel generation, pyrolysis, and for the removal of toxic metals from polluted water. These secondary resources can also be used in construction materials and for the synthesis of glasses and glass-ceramics, which can be used in bioengineering, optical, and dielectric materials. Agrofood wastes can be used as resource materials to develop modern materials with better properties instead of using minerals. This not only reduces the environment-and management-related problem of the wastes but also provides a sustainable alternative way to produce cost-effective value-added materials for the benefit of society.

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Efficiency of Rice Husk Ash as Cementitious Material in High‐Strength Cement‐Admixed Clay

Cited by 67 publications

References 34 publications

Experimental Study on Recycled Concrete Aggregates with Rice Husk Ash as Partial Cement Replacement

Experimental Study on Recycled Concrete Aggregates with Rice Husk Ash as Partial Cement Replacement

Rice Husk Ash-Based Concrete Composites: A Critical Review of Their Properties and Applications

Biomass as a sustainable resource for value‐added modern materials: a review

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