For soil stabilization purpose, materials passed astm sieve no. The main objectives of the soil stabilization is to increase the bearing capacity of the soil,its resistance to weathering process and soil permeability. Bc soils are highly clayey soils montmorillonite clay mineral. Influence of rice husk ash and lime on engineering properties. National cooperative highway research report nchrp, limefly ash stabilized bases and. Since rice husk ash is a good pozzolana and reasonably produced and freely available agricultural waste, it exhibits its potential of using as a replacing soil stabilizer for lime and cement. Soil stabilization using rice husk ash however, recent technology has increased the number of traditional additives used for soil stabilization purposes. Rice husk is shown in figure 1 and the relevant rice husk ash is shown in the following figure 2. The objective of this paper is to upgrade expansive soil as a construction material using rice husk ash rha and fly ash, which are waste materials. Rha is pozzolanic in nature and is produced from rice husk by burning it at a controlled temperature. Therefore, sufficient laboratory soil tests, such as atterberg limits, compaction, california bearing ratio cbr, and direct shear test are carried out, and the. The addition of igcc residues to a soil may provide a construction subbase, improves soil strength and durability, controls soil volume changes, and provides a temporary wearing surface. Commonly used stabilizers for altering the properties of soils are lime and cement.
For reducing the amount of waste materials, rice husks are. Rice husk ash rha is the ash produced by burning of rice husk. Investigations indicate that based on environmental and atmospheric conditions, the chemical reaction of lime and clayey soil is not accomplished well, owning. The term soil stabilization means the improvement of the stability of bearing power of the soil by the use of controlled. Theory soil stabilization when the mechanical stability of a soil can not be obtained by combining. Through soil stabilization, unbound materials stabilized with cementican be tious materials cement, lime, fly ash, bitumen or combination of these. Stabilization of residual soil with rice husk ash and cement. Stabilization of tropical residual soil using rice husk ash. Burning of rice husk generates about 1520% of its weight as ash. Rice husk ash, soil stabilization, chemical stabilizer, index. Stabilization of residual soils is studied by chemically using cement and rice husk ash. Naturalpaves earthfriendly stabilization technology uses native soils rather than hauledin materials, eliminating the need to import costly base or aggregate materials to build a subbase for subsequent paving or chip sealing. When rice husk is burnt under controlled temperature, ash is produced and about 17%25% of rice husks weight remains ash. Peat soil stabilization with rice husk ash and lime powder.
Jan 27, 2016 experimental study of stabilization on natural soil subgrade using rice husk ash ijsrdvol. Experimental study of stabilization on natural soil subgrade. The rice husk ash was produced locally which has obtained from rice husks burnt in a brick industry near yogyakarta. Depending upon the soil type, the effective flyash content for improving the. Effects of rice husk ash cement mixtures on stabilization. Expansive soil stabilization using coconut shell powder and lime. Chemical analysis on the rice husk ash gave the sum of sio2, fe2o3, and al2o3 as 85. Lots of ways are being thought for disposing it by making commercial use of rha. Hence, use of rice husk ash to modify unsuitable soil should be encouraged rahman et al. Influence of using rice husk ash in soil stabilization method. A comparative study of stabilization on subgrade soil by.
Investigation includes the evaluation of such properties of the soil as compaction, strength, and xray diffraction. Soil stabilization is defined as chemical or physical treatments which increase or maintain the stability of a soil or improve its engineering properties. Geotechnical properties of rice husk ash enhanced lime stabilized expansive clay 38 media komunikasi teknik sipil 0 10 20 30 40 50 60 70 80 90 100 0. Using british standard light bsl compaction energy level, performance of the soilrha was investigated with respect to.
An experimental investigation on stabilizing the soil using. Stabilization of soil using rice husk ash international journal of. May 09, 2015 rice husk ash rha is obtained by the combustion of rice husk and has been found to be super pozzolanic. Brooks soil stabilization with fly ash and rice husk ash international journal of research and reiew in appliedscience 2009,isnn209217 5d k soni, geotechnical engineering jounral effect of freezing thawing and wettingdrying on tensile strength of lime fly ash stabilized black cotton soil. Comparative study on soil stabilization by sugar bagasse ash and. Rice husk ash consist of 85%90% silica, this is why it is a great replacement for silica in soil stabilization, silica is considered to be a great binding agent along with cement, however due.
The feasibility of using two industrial wastes, rice husk ash rha from a rice mill and lime sludge from a paper factory, for soil stabilisation in road construction activities, was studied. The moisture changes in bc soils, compressibility and plasticity nature can be greatly improved with the addition of lime and fly ash. Some waste materials such fly ash, rice husk ash, pond ash may use to make the soil to be stable. Rice husk ash rice husk was considered as valueless byproduct of rice milling.
Rice husk, ash, soil stabilization jel classification. One popular and inexpensive method of soil stabilization is using lime. Rice husk ash is a primary agricultural product obtained from paddy. Soil stabilization using lime open access journals. Test results show that both cement and rice husk ash reduce the plasticity of soils. This paper aims to investigate the influence of adding rice husk ash on the reaction between soil and lime and lime reaction and determine soil physical and mechanical characteristics. Geotechnical properties of rice husk ash enhanced limestabilized expansive clay 38 media komunikasi teknik sipil 0 10 20 30 40 50 60 70 80 90 100 0. Chao lung hwang and satish chandra no of pages 51 pdf.
Experimental study of stabilization on natural soil subgrade using rice husk ash ijsrdvol. In a similar way, raw rice husk was mixed with soil lime mixtures. Stabilization of weak subgrade soil for road construction. Soil stabilization with flyash and rice husk ash citeseerx. Stabilization of soil is a method to improve the index and engineering properties of soil. What is the use of burnt rice husk in soil improvement. Engineering properties of an expansive soil stabilized with. From the table 4 it is clear that silica is the major constituent of the rice husk ash. During milling of paddy about78% of weight is, received as rice, broken rice and bran. Influence of using rice husk ash in soil stabilization. These samples were 2%, 4%, 6%, 8%, 10% and 12% for lime and 7. By soil stabilization, the soil becomes more stable by the reduction in the permeability and compressibility and by the increase in shear strength. A combination of 20% by weight of rice husk ash rha and approximately 2% by weight of natural lime improved the california bearing ratio cbr of expansive clay soil by 800%, reduced the soil plasticity by approximately 90%, and decreased free swell by approximately 70%. Rice husk ash was mixed in different percentages e.
A study on the compaction characteristics and stressstrain. In clayey lands, swelling problem causes vertical displacements on road subbase, and finally, failure in pavement occurs due to lack of appropriate drainage systems. Comparative study on soil stabilization by sugar bagasse ash and rice husk ash 12 2. Lime and rice husk ash the lime used in this study was powderhydrated lime. In each case the stabilized soil was compacted at a water content of 5% above the optimum and. This paper presents the stabilization of expansive soil c with steel slag ss, rice husk ash rha, and quick lime l. The effect of rice husk on the chemical properties of clay soil. He concluded that the addition of rice husk and lime decreases the mdd and increases the omc of the expansive soil. Soil stabilization by rice husk ash and waste coir material.
The rice husk was burnt at temperatures between 500 and 700 c to ensure maximal formation of siliceous component. Rha soil stabilization rice husk is a major agriculture byproduct obtained from the food crop of paddy. Aug 24, 2010 this paper aims to investigate the influence of adding rice husk ash on the reaction between soil and lime and lime reaction and determine soil physical and mechanical characteristics. Soil stabilization with lime and fly ash the constructor. Soil stabilization is a general term for any physical, chemical, biological, or combined method of changing a natural soil to meet an engineering purpose. Rice husk ash rha is a pozzolanic material that could be potentially used in soil stabilization, though it is moderately produced and readily available. Soil stabilization using rice husk ash and natural lime as an. For every 4 tons of rice around 1 ton is of rice husk is produced. Soil stabilization can be explained as the alteration of the soil properties by chemical or physical means in order to enhance the engineering quality of the soil.
Effect of cement replacement by rice husk ash on soft soil stabilization naphol yoobanpot and pitthaya jamsawang abstract the characteristics of soft soil improvement using cement and rice husk ash were studied. Because rha is not selfcementitious, a hydraulic binder such a lime must be added to form cements to improve the soil strength. A series of laboratory experiment has been conducted on lime mixed with black cotton soil blended with rice husk ash in 5%, 10%, 15%, and 20% by weight of dry soil. Rice husk ash rha is obtained by the combustion of rice husk and has been found to be super pozzolanic. Effect of cement replacement by rice husk ash on soft soil. Using british standard light bsl compaction energy level, performance of the soil rha was investigated with respect to compaction. Soil stabilization an overview sciencedirect topics. Both waste materials are produced in india as industrial byproducts. Introduction stabilization of soil plays a very important role during construction as it is a process used to improve the properties of soil such as strength, plasticity its. In a similar way, raw rice husk was mixed with soillime mixtures. Even though, the ashes have been potential pozzolanic materials suitable for use in limepozzolana mixes and for portland cements replacement 10. Effects of rice husk ash and lime on clay soil stabilization. Soil stabilization using rice husk ash and cement semantic scholar. Compressive strength testing of stabilized soil was investigated with various curing times of 3, 7, 14 and 28 d.
Stabilization, alluvial soil, clay, rice husk ash, index properties, shear strength and. Soil stabilization soil stabilization method engineering. The rice husk ash is mixed with soil in various proportions like 5%, 10%, 20%, 30%, 40%, 50% and 80%. The method involves on site soil improvement by applying stabilizing agent without. Soil stabilization with rice husk ash and lime sludge. Experimental study of clayey soil with lime and rice husk ash. Lime and fly ash admixture improvement of tropical hawaiian soils. Soil stabilization is the process which is used to improve the engineering. Peat soil stabilization with rice husk ash and lime powder issn. Influence of rice husk ash and lime on engineering.
Soil stabilization with rice husk ash and lime sludge trid. Abstractstabilization of black cotton soil bc soil is studied by using lime and fly ash. Due to 2% rice husk ash the cohesion value of soil increases from 0. Fly ash is the waste material generated from the thermal power plants, so their use make the soil stabilization cheaper. Midwest naturalpave was specifically created to take advantage of native soils. The prime objective of soil stabilization is to improve the compressive strength of soil in order to eliminate the settlement in building foundation and also in the road pavements. Remolded expansive clay was blended with rha and flyash. Due to 3% rice husk ash the cohesion value of soil increases from 0. Optimum utilization of rice husk ash for stabilization of subbase. Rice husks are approximately cellulose 40%45%, lignin 25%30%, ash 15%20% and moisture 8% 15%. Brooks soil stabilization with fly ash and rice husk ash international journal of research and reiew in appliedscience 2009,isnn209217 5d k soni, geotechnical engineering jounral effect of freezing thawing and wettingdrying on tensile strength of limefly ash stabilized black cotton soil. A series of laboratory experiments have been implemented. The compaction characteristics of soil blended with various percentages of rice husk ash and lime are studied. The most objective of this study is to judge the feasibility of exploitation rice husk ash with lime as soil stabilization material.
Researches on stabilization by applying rha and lime combinations were conducted in sandy soils. Residual soil, stabilization, shear strength, rice husk ask, cbr. These materials may be classified as pozzolanic fly ash, rice husk ash etc. Abstract stabilization of black cotton soil bc soil is studied by using lime and fly ash. Rha being very light is easily carried by wind and water in. Pdf effect of rice husk ash on soil stabilization aroj bashir. The geotechnical properties, shearing strength characteristics, and dynamic properties of stabilized soil have been studied. Potential use of rice husk ash with lime as a soil. Due to 1% rice husk ash the angle of internal friction of soil increases from 22. The stabilized soil materials havea higher strength, lower permeability and lower compressibility than the native soil keller bronchure 3201e.
Jul 07, 2016 this paper presents the stabilization of expansive soil c with steel slag ss, rice husk ash rha, and quick lime l. At the mills, disposal of the hulls is achieved by burning them in heaps near the mills. Soil stabilization using rice husk ash, lime and jute. Rice husk ash was applied at 4, 6, 8, and 10 % by weight of dry soil. The thickness of the flexible pavement is a primary function of strength of sub.
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. Soil sample collected from maikunkele area of minna, classified as an a76 lateritic soil on aashto classification was stabilized with 212% rice husk ash rha by weight of the dry soil. Varieties of samples were made by blending both rice husk ash and lime together. The chemical properties of lime are presented in table2. Addition of 1015% cement and 68% rice husk ash is recommended as an optimum amount. Use of rice husk ash is sustainable method for soil stabilization rha reduces the. Behavior of expansive soil treated with steel slag, rice husk. Lime and fly ash materials have binding properties, so they are used for the stabilization of soil. The process of improving the engineering properties of soils is called soil stabilization.
For tests of specimens of mixedstabilized soils, specimens were prepared by thoroughly mixing the required quantity of soil and stabilizers rice husk ash and fly ash in preselected proportion in dry state. Over the times, rice husk ash is the materials used for stabilizing soils. Its use as a soil stabilizer is an alternative to the final disposition with environmental benefit. In combination with lime, rha improved the properties of black cotton soil. Mdd goes on decreasing and omc goes increasing with increase in percentage of polypropylene fiber in. The vibration is the most recommended compaction method for sandy soils stabilized with rha and lime independent of the ash and lime. Pdf soil stabilization with rice husk ash and cement. One of the methods of stabilizing soil is the use of special stabilizers such as lime, cement, bitumen and other chemicals. The tests were conducted under a constant strain rate of 1. Unfortunately, this method has not given satisfied result due to no silica content in peat soil. Grain size distribution curves of soil used and rha the hydrated lime was used in this.
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