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. The rice husk is produced in rice mill in the milling. The potential and efficiency of using rice husk ash rha to add up or partially replace portland cement in deep cement mixing technique are examined. Efficiency of rice husk ash as cementitious material in high. Study on concrete with partial replacement of cement by rice. The cement has been replaced by rice husk ash accordingly in the range of 0%, 5%, 10%, 15%, and 20% by weight of cement for mix. Combine effect of rice husk ash and fly ash on concrete by 30. Rice husk ash can be used as a soil amendment and as additive in cement and steel, among others. Various properties of rice husk ash like specific gravity, bulk density, fineness and ph level were determined and compared with that of the cement as shown in table 3. Rice husk ash percentage was gradual increased from 7. Study on properties of rice husk ash and its use as cement replacement material article pdf available in materials research 2 april 2010 with 6,664 reads how we measure reads.
Investigation of the thermal properties of rice husk ash in. In this work alternative source for cement as rice husk ash is used. The rice husk ash is used as a green supplementary material that has applications in small to large scale. Rice milling industry generates a lot of rice husk during milling of paddy which comes from the fields.
The goal of this project was to supplement opc powder with rice husk ash rha and expanded glass cenospheres to analyze the. Indian standard code of practice for plain and reinforced concrete, is 456 2000, recommends use of rha in concrete but does not specify quantities. The goal of this project was to supplement opc powder with rice husk ash rha and expanded glass cenospheres to. 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. This furnace figure 1 can hold up to 60 kg of rice husks. Experimental studies on concrete with rice husk ash as a. 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. Over 5% of global co 2 emission is attributed by cement production. The rice husk ash rha contain near about 85 % to 90 % amorphous silica. That there is an abundance of this material in the developing countries of the world and its use will help in removing millions of tonnes of waste from the environment annually. Abstract this research deals with the effects of using rice husk ash rha as a partial weight of cement replacement in concrete roof tile production. Rice husk ash rha is about 25% by weight of rice husk when burnt in boilers. Natural and artificial fibers are used to reinforce the matrix for improved ductility, toughness, flexural strength, fatigue resistance, and impact.
Effect of rice husk ash in concrete as cement and fine aggregate nithyambigai. Pozzolanic activity of rice husk ash rha depends on i. Rice husk ash the husk was collected from paddy field in kuala selangor, malaysia, it was then burned in the laboratory by using a ferro cement furnace8. Rice husk is also used as a fuel for power generation. However, slight decrease in unconfined compression of cement treated soil was observed on addition of rice husk ash. Study on concrete with partial replacement of cement by rice husk ash. Over 5% of global co2 emission is attributed to cement production. May 09, 2015 replacement of cement with rice husk ash by 20% 1. The rice husk ash has good reactivity when used as a partial substitute for cement. Pdf replacement of cement in concrete with rice husk ash. The rich land and tropical climate make for perfect conditions to cultivate rice and is taken advantage by these asian countries. Rice husk from local rice mills was burnt completely in open field condition and sieved with 150 micron is sieve. This paper presents a comparative study on use of rha as partial replacement of cement in concrete specimens. The work is based on an experimental study of roof tiles produced with ordinary portland cement.
A study on ordinary portland cement blended with rice husk. Unprocessed rice husk ash as a partial replacement of cement. This paper investigates the properties of rice husk ash rha produced by using a ferrocement furnace. As a result there is greater possibility to gain more number of carbon credits. Efficiency of rice husk ash as cementitious material in. Review of the researches on physical, mechanical and structural properties of concrete containing rha as partial replacement of ordinary portland cement was included in this paper. Evaluation of strength characteristics such as compressive strength, flexure strength, split tensile strength of concrete and comparison of the same with conventional concrete. G assitant professor department of civil engineering srm university, ramapuram chennai, tamil nadu abstractcement is the most expensive constituents of concrete.
A series of unconfined compression tests on cement rhastabilized clay are conducted to investigate the influence of rha on the mixture properties. A comparative study is carried on properties of concrete when cement is partially replaced with rice husk ash. Ahmad2 1department of civil engineering, southern university bangladesh, chittagong, bangladesh 2department of civil engineering, chittagong university of engineering and technology, chittagong, bangladesh corresponding author. When the husk was converted to ash by uncontrolled burning below 500 c, the ignition was not completed and considerable amount of unburnt carbon was found in the resulting ash 17. The binder may be cement, mineral admixtures of fly ash, ground granulated blast furnace slag ggbfs, rice husk ash, etc. Investigation of the thermal properties of rice husk ash. Comparison of physical properties property rice husk ash cement specific gravity 1. 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. The rice husk ash possesses a chemical composition similar to many of the organic fibers. By using consistent and quality process deelert can create rha rice husk ash that has low residule carbon content and high silica content which is necessary in the steel industry. By using rice husk ash in concrete, we can improve the properties of concrete.
These are prominent in countries where the rice production is abundant. Tande2014, effect of rice husk ash on properties of concrete, journal of. Rice husk ash cement introduction rice husk ash rha is a byproduct from the burning of rice husk. Rice husk ash rha possesses high pozzolanic activities and very suitable as partial replacement of cement in concrete.
Study on concrete with partial replacement of cement by. Rice husk as a waste material is abundant in nigeria, but before. 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. However, only small amounts compared to the total rice husk production are used for such purposes. Rice husks contain organic substances and 20% of inorganic material.
O 2014,use of rice husk ash as a partial replacement for cement in concrete, int, journal of engineering and applied science. Modified nansu method has been used for design mix as the study was carried out for medium strength of concrete. Rice husk ash rha the rice husk used was obtained from ile ife, nigeria. Study on properties of rice husk ash and its use as cement. Pdf the paper assesses the use of rice husk ash rha as an admixture in concrete in normal environment by determining the effect of. The rice husk ash may vary depending upon the source as well as the type of treatment. Strength characteristics of concrete made with rice husk. Rice husk is extremely prevalent in east and southeast asia because of the rice production in this area. A 20% replacement of unprocessed cambodian rice husk ash was deemed appropriate for use in smallscale, rural structural applications. The compressive strengths of the cubes were increased with age of. Effect of rice husk ash in concrete as cement and fine aggregate. Pdf study on properties of rice husk ash and its use as. Indian standard code of practice for reinforced concrete and.
It invoved the determination of workability and compressive strength of the concrete at different level of replacement. 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 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 suitability of partial replacement of cement with rice. May 09, 2015 the technical and economic advantages of incorporating rice husk ash in concrete should be exploited by the construction and rice industries, more so for the rice growing nations of asia. The usage of rice husk either in its raw form or in ash form is many. The density of concrete made by this method is higher when compared to concrete made of the conventional mix, that makes use of more cement. Effect of rice husk ash on fresh and hardened properties of. Materials science and engineering, volume 149, conference 1. Huge quantity of rice husk ash rha and broken ceramics in egypt are produced as wastes and become of great threat to the environment, causing damage to the land and the surrounding areas in which it is dumped.
Effect of rice husk ash in concrete as cement and fine. Lowtech methods of grinding the ash were also investigated and were found to drastically increase the compressive strength of rhacement mortars in comparison to mortars made with unground rha. Characteristics of rice husk ash concrete workability and. Published under licence by iop publishing ltd iop conference series. Cisse ik, laquerbe m 2000 mechanical characterization of filler sandcretes with rice husk ash additions. Following table shows the percentage variation of cement, fly ash and rice husk ash. Most of the husk from the milling is either burnt or dumped as waste in open fields and a small amount is used. Cellulose c 5 h 10 o 5 lignin c 7 h 10 o 3 hemicellulose. Rice husk ash the husk was collected from paddy field in kuala selangor, malaysia, it was then burned in the laboratory by using a ferrocement furnace8. Mould id cement % fly ash % rice husk ash % fr00 100 0 fr10 90 10 0 3 fr20 80 20 0 fr30 70 30 0 5 fr01 90 0 10 6 fr02 80 0 20 7 fr03 70 0 30 8 fr11 80 10 10.
Initially rice husk was converted into ash by open heap village burning method at a temperature, ranging from 300 c to 450 c 16. It was also noted that bulk density of rice husk ash was less when compared to that of the cement. The substitution of rice husk ash for cement can be up to 10% for best results in concrete produced. Rice husk ash, cement, concrete, compressive strength, split tensile strength, rha. 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. Unprocessed rice husk ash as a partial replacement of cement for. Effect of rice husk ash on cement mortar and concrete. 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. Compressive strength tests were carried out on five cement paste cubes with cement replaced by rice husk ash rha at four levels 0, 5, 10, 15 and 20%. Paper open access related content study on concrete with.
Coarse aggregate of 20 mm graded nominal size, river. Abdullah al mamun 3 ayesha siddika rice husk ash rha possesses high pozzolanic activities and very suitable as. The properly rice husk ashes are found to be active within the cement paste. Rice husk ash having a very small particle size of 25 microns, so that it can fills. Effect of rice husk ash on fresh and hardened properties. A blended admixture of portland cement and rice husk ash, proportioned in the ratio of cement to rice husk ash, 3 to 1, met the durability criteria. Iosr journal of mechanical and civil engineering, 0101, 2833. Utilization of rice husk ash in concrete as cement replacement.
In addition, production of cement is responsible for about 7% of all co2 generated in the world. This rice husk is mostly used as a fuel in the boilers for processing of paddy. Innovative infrastructure solutions study on concrete with rice husk ash ayesha siddika 0 1 2 md. Rice husk ash center for vocational building technology. Electrical behaviour of blended cement made of rice husk ash. Pdf rice husk ash as admixture in concrete researchgate. However, slight decrease in unconfined compression of cementtreated soil was observed on addition of rice husk ash. Rice husk ash as a partial replacement of cement in high. Effect of rice husk ash on partial replacement of cement.
Strength behavior of cement mortar assimilating rice husk ash. Characteristics of rice husk ash concrete workability. A series of unconfined compression tests on cementrhastabilized clay are conducted to investigate the influence of rha on the mixture properties. This superpozzolan can be used in a big way to make special concrete mixes. Combine effect of rice husk ash and fly ash on concrete by.
Lowtech methods of grinding the ash were also investigated and were found to drastically increase the compressive strength of rha cement mortars in comparison to mortars made with unground rha. In this study rice husk ash rha and broiler bed ash from rice husk bba, two agricultural waste materials, have been assessed for use as partial cement. In this paper, the detailed experimental investigation was done to study the effect of partial replacement of cement by fly ash fa and. Cement is the most expensive constituents of the concrete. Rice husk ash in concrete properties, advantages and uses. Concrete mixtures were produced, tested and compared in terms of compressive strengths with the conventional concrete. Pozzolanic activity of rice husk ash rha depends on i silica content, ii silica crystallization phase, and.
Deelert processes and packages rice husk ash for different industries such as cement and steel industry. Rice husk ash as a partial replacement of cement in high strength. Dec 08, 2018 rice husk ash rha, produced after burning of rice husks rh has high reactivity and pozzolanic property. Rha based sand cement block can significantly reduce room temperature. In riceproducing countries rice husk asha material naturally high in silicacan.
Physical characteristics and chemical composition of mineral admixtures can be fulfilled by burning rice husk into ash. Strength characteristics of concrete made with rice husk ash. Special attention is paid to its efficiency for increasing the strength by partial cement. The effect of rice husk ash on mechanical properties and durability. Among all industries to reuse this product, cement, and concrete manufacturing industries are the ones who can use rice husk in a better way. 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. This method makes use of cement and the rice husk ash to fill up the pores, with the help of water. So, the use and practical application of rice husk ash for concrete manufacturing are important.