Influence of Rice Husk Ash on the Swelling and Strength Characteristics of Expansive Soil

2019 ◽  
Vol 38 (2) ◽  
pp. 2293-2302 ◽  
Author(s):  
Arpit Jain ◽  
Anil Kumar Choudhary ◽  
J. N. Jha
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Expansive Soil ◽  
Strength Characteristics

scholarly journals Influence of Lime, Rice Husk Ash and Coconut Fibre on Strength Properties of Subgrade

2020 ◽  
Vol 9 (8) ◽  
pp. 767-772
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Clayey Soil ◽  
Strength Properties ◽  
Strength Characteristics ◽  
Soil Stability ◽  
Dry Density ◽  
Subgrade Soil ◽  
Adjustment Strategies ◽  
Coconut Fibre

Soil stability is a significant criterion in the field of development, for soil which needs adequate steadiness, different adjustment strategies can be embraced. The entrenched methods of soil adjustment regularly utilize such establishing operators like cement. Substitution of solidifying substance with commercial or agriculture outcome is profoundly attractive. Rice husk ash is an extremely prospective agriculture dissipates as pozzolanic materials that bring about a prevalent property after joined with lime. Also, coconut fibre is well known for its durability and high resistance and gives well establishing results when combined with lime and rice husk ash. This study worked on the experimental investigation of clayey soil with admixtures like lime, rice husk ash and coconut fibre. This study included the calculation of properties of the soil as consistency limits and strength characteristics. Clay type of soil is used in this study. In view of compaction, expansion of lime, RHA and coconut fibre diminishes the dry density and expands the moisture content. From the perspective of strength characteristics and economical terms, expansion of 6% lime, 8 % RHA and 1 % coconut fibre are prescribed as ideal value for subgrade soil adjustment

scholarly journals Utilization of Cementitious Material from Residual Rice Husk Ash and Lime in Stabilization of Expansive Soil

2019 ◽  
Vol 2019 ◽  
pp. 1-17 ◽  
Author(s):  
Yuyi Liu ◽  
Yunhe Su ◽  
Abdoullah Namdar ◽  
Guoqing Zhou ◽  
Yuexin She ◽  
...  
Keyword(s):  
Rice Husk ◽  
Soil Stabilization ◽  
Rice Husk Ash ◽  
Expansive Soil ◽  
Strength Properties ◽  
Cementitious Material ◽  
Initial Water Content ◽  
Time Deformation ◽  
Mix Proportion ◽  
Deformation Properties

Geological disasters often occur due to expansion and shrinkage properties of expansive soil. This paper presents a cementitious material combined with rice husk ash (RHA) obtained from biomass power plants and lime to stabilize expansive soil. Based on compressive and flexural strength of RHA-lime mortars, blending ratio of RHA/lime was adopted as 4 : 1 by weight for soil stabilization. When mix proportion of RHA-lime mixture varied from 0% to 20%, specific surface area of stabilized expansive soil decreased dramatically and medium particle size increased. The deformation and strength properties of stabilized expansive soil were investigated through swelling test, consolidation test, unconfined compression test, direct shear test, and so on. With increase in RHA-lime content and curing time, deformation properties including swelling potential, swelling pressure, compression index, crack quantity, and fineness of expansive soil lowered remarkably; meanwhile, strength properties involving unconfined compressive strength, cohesion, and internal friction angle improved significantly. Considering engineering performance and cost, mix proportion of 15% and initial water content of 1.2 times optimum moisture content were recommended for stabilizing expansive soil. In addition, effectiveness of RHA-lime to stabilize expansive soil was achieved by replacement efficiency, coagulation reaction, and ion exchange.

scholarly journals Strength and Microfabric of Expansive Soil Improved with Rice Husk Ash and Lime

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Jinrong Ma ◽  
Yunhe Su ◽  
Yuyi Liu ◽  
Xiangling Tao
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Harmful Effect ◽  
Expansive Soil ◽  
Pozzolanic Activity ◽  
Strength Increase ◽  
Free Expansion ◽  
Improvement Effect ◽  
Cementing Material ◽  
Curing Age

Expansive soil has harmful effect on engineering. Rice husk ash (RHA) has high pozzolanic activity, so it can form new cementing material with lime or cement to solidify soil. In this paper, the tests of free expansion rate, water ratio limit, and optimum moisture content (OMC) are carried out; then, RHA and lime were added to artificial soil in different proportions of 5, 10, 15, and 20% by weight, in which the ratio of RHA to lime is 80 : 20. The unconfined compressive strength (UCS) in different curing age is measured, and the improvement effect of RHA and lime to expansive soil can be obtained. Finally, the reason of improvement effect is explained by using the scanning electron microscope (SEM). The results of the study show that (1) for the best utilization effect, the optimum percentage of RHA is 12% and lime is 3%; (2) the UCS is 2.6 times of the pure soil after curing of 14 d under the optimum percentage; (3) the curing age has a significant effect on strength; (4) the main reason for the strength increase of the modified soil is that the crystal produced by the pozzolanic activity fills the pores of the soil.

scholarly journals To Study Strength Characteristics of Concrete with Rice Husk Ash

2016 ◽  
Vol 9 (47) ◽  
Author(s):  
Paramveer Singh ◽  
Tarunbir Singh ◽  
Gurpreet Singh
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Strength Characteristics

scholarly journals Study of expansive soil stabilized with agricultural waste

2021 ◽  
Vol 2070 (1) ◽  
pp. 012237
Author(s):  
Tinku Biswas ◽  
Rishav Garg ◽  
Himanshu Ranjan ◽  
Ashwini Kumar ◽  
Gaurav Pandey ◽  
...  
Keyword(s):  
Moisture Content ◽  
Rice Husk ◽  
Soil Stabilization ◽  
Rice Husk Ash ◽  
Agricultural Waste ◽  
Expansive Soil ◽  
Soil Surface ◽  
Vital Role

Abstract During any construction on soil surface such as construction of road and airport pavements, compaction of the soil is required and soil stabilization plays a vital role. Various characteristics of soil should be optimized with different factors. Expansive soil has property of swelling when moisture content increases and shrinking when water gets evaporated. Rice husk is a major agricultural waste that is easily available in in India and is generally burnt to get rice husk ash (RHA). This study has been aimed to get dual benefit, first to stabilize expansive soil by addition of RHA and second to effectively utilize RHA, the agricultural waste. It has been observed that at 12% RHA in presence of 5% cement can be effectively used to improve plasticity of soil and CBR value resulting in effective soil stabilization. Thus, the research demonstrates that agricultural waste has efficient use in soil stabilization.

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