Rice husk ash rha is a byproduct of the rice milling industry. Tt351, impact of rice husk ash on the performance of durian fiberbased construction materials, s. Ordinary portland cement opcbased concrete is the most widely used building material and is relied upon for its durability and life span, strength, and in some cases, its aesthetic effect. The effect of mixing rha with fine aggregate for 10 minutes on 7day compressive strength. Due to pozzolanic reactivity, rice husk ash is used as a supplementary cementing material in concrete. Effect of rice husk ash and watercement ratio on strength. Combine effect of rice husk ash and fly ash on concrete. Introduction the high cost of cement, used as binder, in the production of mortar, sandcrete blocks, sandcrete bricks and concrete has led to a search for alternative binding materials in the construction industry. Optimum use of rice husk ash rha, obtained by open field burning method, is decided for improving workability, strength and durability of concrete. Concrete is well known is a heterogeneous mix of cement, water and aggregates. Impact of rice husk fiery debris on cement concrete is a lab give an account of cement concrete is that the consuming of rice husks rh has made a high pozzolanic reactivity and property. Study on concrete with partial replacement of cement by rice husk ash. The compressive strength of the concrete with 10% rha has been increased significantly, and for up to 20% replacement of cement could be beneficially replaced. Efficiency of rice husk ash as cementitious material in.
The paper presents the experimental investigation conducted on rice husk ash rha concrete to evaluate the compressive strength and to study its durability properties. These are prominent in countries where the rice production is abundant. As shown in figure 2, the upv of rice husk ashmodified mix is less as compare to the control mix. Abiero gariy 4 1 civil engineering department, pan african university institute for basic sciences, technology and innovation pausti, 62000 00200 nairobi, kenya. Rice husk ash rha the rice husk used was obtained from ile ife, nigeria. Also it is an attempt made to develop the concrete using rice husk ash as a source material for partial replacement of cement, which satisfies the various structural. The binder may be cement, mineral admixtures of fly ash, ground granulated blast furnace slag ggbfs, rice husk ash, etc. Thus, due to growing environmental concern and the need to conserve energy and resources, utilization of industrial wastes as supplementary cementing materials has become an integral part of concrete construction. Effect of rice husk ash on workability and strength of. Pdf effect of rice husk ash in concrete as cement and fine. In the present research, the effect of rice husk ash fineness on the properties of concrete was studied. The rice husk ash will result in the decrease of setting time.
Rice husk ash rice husks after burning, produce rice husk as ash shown in figure 2 is an agricultural byproduct is used as a partial replacement of opc. Effect of rice husk ash on cement mortar and concrete. Bagasse ash, rice husk ash, and fly ash when used as a partial replacement for ordinary portland cement opc53 in concrete. Materials science and engineering, volume 149, conference 1. In this thesis rice husk ash and waste paper sludge ash was used as partial replacement of cement.
Rice husk is an agricultural residue widely available in major rice producing countries. Indian standard code of practice for reinforced concrete and plain is 456 2000, recommends use of rice husk ash in concrete but does not specify measures. Rice husk ash rha rice husk ash is obtained by burning of the rice husk obtained from rice mills. It was concluded that decreasing rha average particle materials. The upv of control mix, rha modified at 10% cement replacement mix and rice husk ash polymer modified concrete with incorporation of polymer from 1 7. Eight different fineness grades of rice husk ash were examined. The compressive strengths developed by the scc mixes with rha were comparable to the control concrete.
The goal of this project was to supplement opc powder with rice husk ash rha and expanded glass cenospheres to. In general, industrial waste such as fly ash, rice husk and ground blast furnace slag, has been subjected to active research as potential candidates for replacement of portland cement, whose. Rice husk ash in concrete properties, advantages and uses. International journal of cement composites and lightweight concrete, 64. Bui dd, hu j, stroeven p 2005 particle size effect on the strength of rice husk ash blended gapgraded portland cement concrete. In this paper, the detailed experimental investigation was done to study the effect of partial replacement of cement by fly ash fa and. The potable water used was confirming to the requirements of is 4562000. Rice husk ash rha is obtained by the combustion of rice husk and has been found to be super pozzolanic. A rice husk ash dosage of 15% by weight of binder was used throughout the experiments. Pdf replacement of cement in concrete with rice husk ash. A series of unconfined compression tests on cementrhastabilized clay are conducted to investigate the influence of rha on the mixture properties.
This paper presents benefits resulted from various ratios of rice husk ash rha on concrete indicators through 5 mixture plans with proportions of 5, 10, 15, 20 and 25% rha by weight of cement in addition to 10% micro silica ms to be compared with a reference mixture with 100% portland cement. Mechanical behavior of concrete modified by replacement of. Rice husk ash percentage was gradual increased from 7. Effect of rice husk ash on fresh and hardened properties. Pdf effect of rice husk ash on concrete researchgate. Samples with dimensions of 15 x 15 cm were tested, with 12. International research journal of engineering and technology irjet eissn. Effect of rice husk ash as additives in lime mortar proceedings of ninth theiier international conference, bangkok, thailand, 7th february 2015, isbn.
Experimental investigation on engineering properties of. Impact of rice husk ash on the performance of durian fiber. Pdf study on properties of rice husk ash and its use as. Effect of cements and treatment conditions on compressive strength. Impact of rice husk ash on cement concrete project abstract. In this project, the strength of fiber reinforced concrete was investigated partial replacement of cement with rice husk ash and fine aggregate with quarry dust. Besides control concrete was also prepared for comparison purpose. Replacement, 10% of cement by ultra fine rice husk ash particles, gave the ultimate concrete strength. Pdf a study on compressive strength of cement with rice. The rice husk ash has good reactivity when used as a partial substitute for cement.
In this research work,the investigation was carried to find the effect of partial substitution of cement by rice husk ash rha in proportion starting from 15% mix together in concrete by substitution of cement with the moderate increase of rha 5%. Near about 20 million tonnes of rha is produced annually which creates environmental pollution. Pdf impact of rice husk ash on cement concrete international. Effect of rice husk ash on properties of concrete krishi sanskriti. So, the use and practical application of rice husk ash for concrete manufacturing are important. In riceproducing countries rice husk asha material naturally high in silicacan be. This paper adopts an experimental approach on the use of rice husk ash as a partial replacement of cement in the production of concrete and the consequent effects on density, compressive strength and split tensile strength of the formulated product. Rajagopal at al2005,to effects of the replacement of cement with the agro waste of ash rice husk ash and bagasse ash on strength and the durabile of concrete,proceeding of the. Compressive strength and durability properties of rice. This is justified by the reason higher water absorbing demand and larger surface area. A new approach to improve durability of rice husk ash. Use of rice husk ash as cementitious material in concrete. In addition, this research work also this research work is conducted to investigate the effect of watercement ratio on the strength of concrete at 10% partially replacement of rice husk ash rha. For this study durability is interpreted in terms of porosity, moisture movement, surface strength, ultra sound pulse velocity and elasticity modulus of concrete.
Rice husk ash as a partial replacement of cement in high. Professor 1,2,3 nims university shobhanagar, jaipur, rajasthan, india abstract impact of rice husk fiery debris on cement concrete is powder particles. Table 3 chemical composition of rice husk ash materials sio2 al2o3 fe2o3 cao mgo so3 k2o na2o3 loi cement 92. Unprocessed rice husk ash as a partial replacement of cement. The use of rice husk ash as a partial replacement of cement has been carried out, among others 3, 4, 5 making concrete by adding rice husk ash and superplasticizer can increase the strength. To determine the workability of rice husk ash concrete with super plasticizer.
Impact of rice husk ash on cement concrete project abstract husk ash ha, after the burning of rice husks rh has manufactured a high pozzolanic reactivity and property. Investigation of the thermal properties of rice husk ash. Pdf effect of partial replacement of cement by rice husk ash in. Characteristics of rice husk ash concrete workability. Quenard for fiber cement composite, long term stability under various environmental and an exposure condition is the most important property which needs to be established. An experimental study on effect of rice husk ash and glass. Natural and artificial fibers are used to reinforce the matrix for improved ductility, toughness, flexural strength, fatigue resistance, and impact. An experimental investigation of rice husk ash and waste.
The properly rice husk ashes are found to be active within the cement paste. Ganesana et al 2 investigated rice husk ash blended cement with respect to assessment of. It invoved the determination of workability and compressive strength of the concrete at different level of replacement. In the ancient period, construction work was mostly carried out with help of mudstone from industry. Effective utilization of rice husk ash by partial replacement of cement g m institute of technology, davanagere 577006 page 2 concrete. Experimental studies on concrete with rice husk ash as a. Published under licence by iop publishing ltd iop conference series. Percentage variation of cement, flyash and rice husk ash in specimens shows in table 4. Portland cement was replaced by rice husk ash at various percentages to study compressive and flexural strength minhong zhang and malhotra, 1996. In the preparation of rice husk concrete, cement was replaced at various percentage levels such as 5%, 10%, 15% and 20%. It has economical and technical advantages to be used. Considerably fly ash and rice husk ash are used as supplementary cementing materials to improve the properties of cement concrete.
In this regard, this study focuses the rice husk ash waste stuff as partial replacement of cement and its possible impact on strength of concrete. Rice husk ash was used to replace ordinary portland cement by 10%, 20% and 30% by weight of cement proportions. Cost analysis showed that the cost of ingredients k. Indian standard code of practice for reinforced concrete and. Rice husk from local rice mills was burnt completely in open field condition and sieved with 150 micron is sieve. Evaluation of rice husk ash and bone ash mixed as partial.
Effect of rice husk ash on workability and strength of concrete abstract rice husk ash rha is an agricultural waste which is a pozzolanic material that can be blended with the cement for manufacturing concrete. The variation of setting time with the variation of rice husk ash amount in concrete. Fineness effect of sugarcane bagasse ash, rice husk ash. Study on concrete with partial replacement of cement by. Rice husk ash has also been reported to improve the properties of concrete or cement paste due to the pozzolanic reaction and its role as a microfiller. Characteristics of rice husk ash and application in ultrahigh. Effect of burning temperature on the structure of the rha adapted from hwang.
Special attention is paid to its efficiency for increasing the strength by partial cement. Its use can reduce the environmental impact of the cement industry. Rice husk ash, concrete, opc, compressive strength, admixture. Opc was replaced with ashes by weight at 15% at various fineness passing through is sieves 150, 300 and 600 micron. Addition of rice husk ash to concrete has many advantages like. As the production rate of rice husk ash is about 20% of the dried rice husk, the amount of rha generated yearly is about 20 million tons worldwide. Reduction in water absorption, from results obtained from 6 tests concrete and 3 tests on mortar samples, it is observed that up to 10% rha with concrete and mortar enhances all properties figures 2a to c and it is observed that 12. This paper presents benefits resulted from various ratios of rice husk ashrha on concrete indicators through 5 mixture plans with proportions of 5, 10, 15, 20 and 25% rha by weight of cement in addition to 10% micro silica ms to be compared with a reference mixture with 100% portland cement.
Rice husk ash having a very small particle size of 25 microns, so that it can fills. Effect of partial replacement of cement by fly ash, rice husk ash with using steel fiber in concrete r. New building materials are used to accelerate the construction work, in which the mixture plays an. Experimental study on the use of rice husk ash as partial. Strength development of concrete with rice husk ash. Effect of partial replacement of cement by rice husk ash. Rice husk ash rha has been used as a highly reactive pozzolanic material to improve the microstructure of the interfacial transition zone itz between the cement paste and the aggregate in highperformance concrete biu et al, 2005. Coarse aggregate of 20 mm graded nominal size, river.
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