Therefore it is a good potential to make the use of rice husk ash as pozzolanic material for making mortar and concrete. Portlandrice husk ash cements containing up to 50% ash showed compressive strengths which were considerably higher than the control portland cements even. One of such materials is the rice husk which under controlled burning, and if sufficiently ground, the ash that is produced can be used as a cement replacement material in concrete. The manufacture of a cement extender from rice husks using a basketburner by m. Strength of ternary blended cement concrete containing afikpo. Types, properties, advantages and uses of rice husk in construction is. Department of civil engineering, faculty of engineering, university of malaya, kuala lumpur, malaysia. The use of rice husk ash in low cost sandcrete block. Rha is usually extracted from the incineration of rice husk. The materials used for the production of the blocks were sand, rice husk ash rha, water and cement burham cement. Learn how watershed materials is using rice husk ash, typically a waste material left over from the processing of harvested rice, as a supplemental cementitious material scm in low cement masonry. This rha contains around 85 % 90% amorphous silica. Effective utilization of rice husk ash by partial replacement of cement g m institute of technology, davanagere 577006 page 3 1.
Rice husk ash cvbt, center for vocational building. Investigation the properties of concrete containing rice husk. Strength and some durability properties of concrete containing. The compressive strength of some commercial sandcrete blocks in minna, nigeria was investigated. The compressive strength of ternary blended cement concrete containing afikpo rice husk ash and sawdust ash was specifically investigated. Pdf investigation of rice husk ash cementitious constituent in. The results indicated that 30% rice husk ash was the appropriate content for partial cement replacement to produce a stabilized soil strength of 424, 722, 915 and 1,126 kpa at 3. Based on the above, optimum dose of rha is determined to enhance the desired properties of concrete without causing any adverse result on other properties.
The efficiency of rice husk ash depends on the proportion of the cement, rice husk ash, and water content in the mixtures as well as the curing time. Rice husk is extremely prevalent in east and southeast asia because of the rice production in this area. Use of rice husk ash as partial replacement with cement in. Rice husk ash rha was obtained under different burning conditions from 400 to 1200 c. Characteristics of rice husk ash concrete workability. Objective of this work is to study the effects of rice husk ash as an admixture on workability, strength, durability of cement concrete and cement mortar. The use of rice husk ash in low cost sandcrete block production e. Replacement of cement with rice husk ash in concrete. Study on properties of rice husk ash and its use as cement replacement material. Efficiency of rice husk ash as cementitious material in high. Effect of partial replacement of cement by fly ash, rice husk ash with using steel fiber in concrete r. This paper presents a comparative study on use of rha as partial replacement of cement in concrete specimens. Burning the rice husk ash is a highly siliceous material that can be used as an admixture in concrete if the rice husk is burnt in a specific manner.
Effect of cement replacement by rice husk ash on soft soil. Effect of partial replacement of cement by rice husk ash in. Rice husk ash was used to replace ordinary portland cement by 10%, 20% and 30% by weight of cement proportions. The mechanical performance of the ash in the concrete was investigated when used as a partial replacement for cement in concrete at 10%, 20%. Commercial sandcrete blocks were collected from different areas in minna town to determine their compressive strength. However, to make a strong mortar, some additional calcium oxide quicklime or portland cement will be required. Rice husk ash in concrete properties, advantages and uses. Husk ash as partial replacement for ordinary portland cement in concrete. This paper investigates the properties of rice husk ash rha produced by using a ferrocement furnace. Compressive strength and durability properties of rice. Included are the results of laboratory research on hydrochloric acid attack, sulfate attack, alkalisilica. Rice husk ash as a potential supplementary cementing material. Partial replacement of cement with rice husk ash rha as. Effect of rice husk ash on cement mortar and concrete sudisht mishra, faculty civil engineer.
Air quality index, ambient air quality, air monitoring. Rice husk ash cvbt, center for vocational building technology. The effect of rice husk ash used as supplementary cementing. The use of coconut fibre ash as a partial replacement for. The rich land and tropical climate make for perfect conditions to cultivate rice and is taken advantage by these asian countries. The rha used for this study was produced from rice husk sourced from a local rice mill in minna. Thangavel b a department of civil engineering, alagappa chettiar college of engineering and technology, karaikudi 630004, india b concrete corrosion division, central electro chemical research institute, karaikudi 630006, india.
The manufacture of a cement extender from ricehusks using a. In the present investigation, a feasibility study is made to use rice husk ash as an admixture to already replaced cement with fly ash portland pozzolana cement in concrete ii. Rice husk ash in concrete properties, advantages and uses in construction rice husk ash is used in concrete construction as an alternative of cement. Pdf replacement of cement in concrete with rice husk ash. This research has been undertaken to study the main characteristics of the rice husk ash rha, properties of fresh concrete and development of the fundamental. Incorporation of rice husk ash as cement replacement international organization of scientific research 27 p a g e only in water filled capillaries therefore, loss of water by evaporation from these capillaries must be prevented. The paper assesses the use of rice husk ash rha as an admixture in concrete in normal environment by determining the effect of addition of rha of 0%, 5%, 10% and 15% respectively to concrete. The rice straw ash and cement were first dry mixed in a pan properly so that a uniform mix of rice straw ash and cement is obtained. This husk is used as fuel in the various mills to generate steam for the parboiling process. In the ancient period, construction work was mostly carried out with help of mudstone from industry. This article presents a study on the properties of rice husk ash rha and its possible utilization as a supplementary cementing material in the construction industry.
Reducing cement content in masonry with rice husk ash, a. Pdf the rice husk is an agricultural waste which is obtained from milling process of paddy and approximately 22% of the weight of paddy is rice husk find. In this study, low and highcarbon rice husk ash rha in their asreceived and ground forms were characterized by means of different methods in order to evaluate their performance in portland cement mixtures. Studies on the effect of rice husk ash as cement admixture. Rice husk ash is environmental polluting material and is the best supplementary material for cement replacement. It invoved the determination of workability and compressive strength of the concrete at different level of replacement. In the present investigation, a feasibility study is made to use rice husk ash as an admixture to an already replaced cement with fly ash portland pozzolana cement in concrete, and an attempt has been made to investigate the strength parameters of concrete compressive and flexural. May 09, 2015 replacement of cement with rice husk ash by 20% 1.
This husk contains about 75 % organic volatile matter and the rest 25 % of the weight of this husk is converted into ash during the firing process, this ash is known as rice husk ash. The paper presents the experimental investigation conducted on rice husk ash rha concrete to evaluate the compressive strength and to study its durability properties. A small addition of rha lesser than two to three by weight of the cement, to a given water cement ratio, is sufficient and helpful to. Compressive strength silica fume rice husk concrete mixture pozzolanic. Review of the researches on physical, mechanical and structural properties. As silica is the main component of rice husks ash, the ash can be used as a pozzolanic material in cement and as an aggregate in the production of bricks and blocks 12 14. Beyond the sustainability advantages, rice husk ash lends a beautiful and unique da. Rice husk ash rha effectiveness in cement and concrete as a. Rice husk ash is used in concrete construction as an alternative of cement.
The use of coconut fibre ash as a partial replacement for cement. Thus the use of rice husk ash in concrete in a large scale will help to lessen the. Rice husk ash as a pozzolanic reactive material can be used to improve surface area of transition zone between the microscopic structure of cement paste and aggregate in the highperformance concrete. Partial replacement of cement with quarry dust and rice. Results from the experiments confirm that ground rice husk ash could be beneficially added into cement deep mixing to enhance the strength characteristics. Using rice husk ash as a cement replacement material in. The results of the compressive strength of rha concrete. Assessment of suitability of fly ash and rice husk ash. This husk is used as fuel in rice mills to produced steam for boiling process. Harish kizhakkumodom venkatanarayanan and prasada rao. Unprocessed rice husk ash as a partial replacement of cement for lowcost concrete. When rha obtained at different burning conditions was added to cement paste or mortar, several properties such as hydration, setting time, porosity, and. Properties of cement paste containing rice husk ash.
This paper investigates the effect of groundnut husk ash gha blended with rice husk ash rha in cement paste and concrete with a view to improve its suitability as a supplementary cementing. Review of the researches on physical, mechanical and structural properties of concrete containing rha as partial replacement of ordinary portland cement was included. Pdf impact of rice husk ash on cement concrete international. Abdullah al mamun 3 ayesha siddika rice husk ash rha possesses high pozzolanic activities and very suitable as. Effect of partial replacement of cement by rice husk ash. The rha enhances the strength of cement admixed clay by larger than 100%, depending on the addition rate and mixing components.
The manufacture of a cement extender from ricehusks using a basketburner by m. The effect of grinding on the particle size and the surface area was first investigated, then the xrd analysis was conducted to verify the presence of amorphous silica in the ash. Jan 15, 2018 rice husk ash rha possesses high pozzolanic activities and very suitable as partial replacement of cement in concrete. 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 hwang, 185. Rice husk ash cement introduction rice husk ash rha is a byproduct from the burning of rice husk. This paper investigates the properties of rice husk ash rha produced by using a ferro cement furnace. Department of civil engineering, federal university of technology, p. 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. Characteristics of rice husk ash concrete workability and. The compressive strength of the concrete with partial replacement of rice husk ash increases with increase in the percentage of rice husk. What are the difference between tender and contract documents.
Research on ash from burning of rice husks rha has already demonstrated that it is one of the most promising supplementary cementing materials scm. Each ton of paddy produces about 40 kg of rice husk ash. Concrete cubes were produced using various replacement levels of 0, 10, 30, 50, 70 and 90 percent of ordinary portland cement opc with cfa. In the preparation of rice husk concrete, cement was replaced at various percentage levels such as 5%, 10%, 15% and 20%. The compressive strength of ternary blended cement sandcrete containing afikpo rice husk ash and sawdust ash was specifically investigated.
Introduction the need to reduce the high cost of ordinary portland cement in concrete has intensified research into the use of some locally available materials that could be used as partial. The types, properties, advantages and uses of rice husk in construction is discussed. Assessment of optimal level of replacement for strength and permeability properties of concrete k. An intensive study on rha was conducted to determine its suitability. Effect of rice husk ash on cement mortar and concrete. Efficiency of rice husk ash as cementitious material in. Experimental studies on concrete with rice husk ash as a. Sample of the ash was taken to determine the chemical composition of the coconut fibre ash, which in turn was used as a pozzolana in partial replacement of cement in concrete production. Fire resistance evaluation of rice husk ash concrete ncbi. This paper represents the effect of rice husk ash on compressive strength of mortar when mixed in. Assessment of suitability of fly ash and rice husk ash burnt clay bricks akshay satish more, ahad tarade, ashwani anant department of civil engineering, kls gogte institute of technology, belgaum. Rice husk ash pozzolanic material for sustainability kartini. Malleswara rao 2 1 department, civil engineering, gitam university, 2 department of civil engineering, andhra university, visakhapatanam, a.
The changes in the properties of rha were investigated by xrd, dat, and microanalytical techniques. Use of rice straw ash as pozzolanic material in cement mortar. Besides control concrete was also prepared for comparison purpose. This husk contain near about 75 % organic matter and the remaining 25% of this husk is modified into ash during the firing process which know n as rice husk ash rha. Concrete, rice husk ash, compacting factor, compressive strength. The main objective of this paper is to study rice husk ash rha, its property and potential to be used both as partial and full replacement of cement in concrete production. This is because rice husk ash contains 85% to 95% weight percent of amorphous silica. Thangavel b a department of civil engineering, alagappa chettiar college of engineering and technology, karaikudi 630004, india.
The results indicated that 30% rice husk ash was the appropriate content for partial cement replacement to produce a stabilized soil strength of 424, 722, 915 and 1,126 kpa at 3, 7, 14 and 28 d curing, respectively. The purpose of the investigation was to determine the effects of rha in cement products exposed to hostile environments. Rice husk ash rha which has the pozzolanic properties is a way forward. Accessible to research institutions, researchers, for purchase. Use of ultrafine rice husk ash with highcarbon content as pozzolan in high performance concrete. Rice husk ash rha possesses high pozzolanic activities and very suitable as partial replacement of cement in concrete. The reactivity of rha in concrete is influenced by the ash properties. Incorporation of rice husk ash as cement replacement. The successful utilization of rice husk ash and sawdust ash in ternary combination with opc for making sandcrete would further add value to these wastes. An experimental study on effect of rice husk ash and glass.
Rhacement pastes and mortars, at three different rha replacement levels of 0 %, 10 %, and 20 %, were prepared at a constant. Strength of ternary blended cement sandcrete containing. Partial replacement of cement with quarry dust and rice husk. Review of the researches on physical, mechanical and structural properties of concrete containing rha as partial replacement of ordinary portland cement. Husk ash rha was prepared using charcoal from burning firewood. Structure and properties of mortar and concrete with rice husk ash. Innovative infrastructure solutions study on concrete with rice husk ash ayesha siddika 0 1 2 md.
Investigation the properties of concrete containing rice. Hence this examination researches the keyword rice husk ash, composition, stability, quality movement file mortars containing lingering effects, compressive. Hence cement was replaced by rice husk ash at various percentage of replacement 0%, 5%, 10%,15% and 20% by weight of cement and 150x150x150mm cube casting. The ash content in the husk is about 1520% by the weight. A small addition of rha lesser than two to three by weight of the cement, to a given water cement ratio, is sufficient and helpful to improve the stability as well as the workability. Rice husk asha unique supplementary cementing material. Strength of ternary blended cement concrete containing. Rice husk ash rha the rice husk used was obtained from ile ife, nigeria. Rice husk ash deelert is rice husk ash manufacture that will work to meet whatever our customers requirements are and produce a quality product at the most competitive price our sales team can speak several languages including english and is committed to. The successful utilization of rice husk ash and sawdust ash in ternary combination with opc for making concrete would further add value to these wastes and reduce the. For control concrete, indian standard is method of mix design is adopted. Rice husk ash as a partial replacement of cement in high.
Limestone powder, rice husk ash, fly ash, ground granulated blast furnace slag and silica fume are the commonly used mineral additives in. Abstract the proposed study involves the experimental investigation of. Mainly gravel,sand and cement are used in the preparation of conventional concrete. Use of rice husk ash in concrete syed mehdi abbas 1, dada patil 2. Research on ash from burning of rice husks rha has already demonstrated that it is one of the. The effect of grinding on the particle size and the. Pdf properties of concrete block containing rice husk ash. The manufacture of a cement extender from ricehusks. In india rice milling produces a by product which is known as husk.