International Research Journal of Engineering and Technology (IRJET) Volume: 09 Issue: 11 | Nov 2022
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e-ISSN: 2395-0056 p-ISSN: 2395-0072
A LABORATORY STUDY ON THE STABILIZATION OF SOIL USING STONE DUST, BLACK SOIL, AND RICE HUSK ASH BOHRA VINAY KUMAR JAIN*1, C NAGARAJU2 DEPARTMENT OF CIVIL ENGINEERING, St. JOHNS COLLEGE OF ENGINEERING & TECHNOLOGY SJCET, YERRAKOTA, YEMMIGANUR, KURNOOL (Dist.), A.P. – 518360 -----------------------------------------------------------------------***----------------------------------------------------------------------
ABSTRACT:
to improve soil qualities must be used. Some of these techniques include stabilising the soil. By increasing subgrade stiffness and decreasing expansion tendencies, chemical stabilisation of the subgrade (with materials like Quicklime, Portland cement, Fly Ash, or Composites) serves as a foundation (able to support and distribute loads under saturated conditions).
The use of industrial wastes to stabilise soil is being studied extensively since it is a growing problem in construction engineering. This experimental work briefly outlines the availability of Stone Dust (SD) in the area and how it could be used in the building sector to reduce the quantity of waste that would otherwise be dumped in the environment, hence reducing pollution. The rising price of stabilising materials like cement, lime, etc., is making traditional soil stabilisation methods increasingly expensive. Replacement of some stabilising drugs with SD and RHA could reduce stabilisation costs. It will reduce pollution and other environmental problems. The soil sample used in the research is medium-plasticity black soil, which needs to be fortified. Rice husk ash and stone dust are used in varying proportions to stabilise the soil. Maximum dry density (MDD), optimal moisture content (OMC), and unconfined compressive stress (UCS) are only a few of the soil parameters monitored for variations (UCS). With increased Stone Dust and RHA, soil UCS is significantly enhanced.
NEED OF PRESENT STUDY: Sub-grade CBR needs to be raised in salty black soil. When wet, expansive soil has incredible strength but becomes incredibly soft; when dry, it expands/swells due to its mineralogical makeup, which causes it to either break open or get consolidated. Various novel foundation approaches are available to deal with the issue of expanding soils [9]. When deciding on a method, it's important to carefully compare each option to find the one that works best with the system at hand. Lime, calcium chloride, Rice Husk Ash, fly ash, gypsum, and other chemicals stabilise expansive soils.
SOIL STABILIZATION:
Keywords: Soil Stabilization, Black soil, Rice Husk Ash (RHA), Stone Dust, Optimum Moisture Content (OMC), Unconfined Compressive Stress (UCS).
"Soil stabilisation" refers to increasing the soil's stability by enhancing its engineering features. Metcalf (1972) and KEZDI (2001) discuss the mixing process as the fundamental principle of soil stability (1979). When the available building dirt is unsuitable, this method must be used. Stabilisation encompasses various techniques, including draining, compaction, and pre-consolidation. When materials are blended and mixed with soil, it improves the soil's qualities. Mixing commercially available additives that can change the gradation, texture, or flexibility of the soil or function as a binder for the cementation of the oil may also be a part of the process. When employed in earthen constructions, soil stabilisation lessens the soil's permeability and compressibility, reduces the soil's swelling in the case of expansive soils, and raises the soil's shear strength. Boosting the carrying capacity of foundation soils calls for stabilisation. However, the primary application of stabilisation is to enhance natural grounds for constructing roads and airport runways.
INTRODUCTION Every part of the country must be linked with all-weather roads so people can move around easily and freely. The pavement should be carefully planned and built so that it can withstand both static and moving loads. The quality of the materials used in road building directly affects the performance of the pavement. The foundation of a paved area is the subgrade, the existing ground below [1-8]. It's common to think of pavement performance in terms of pavement structures and mix design, but the subgrade soils play a far more significant role than many people realise. Using locally sourced, low-priced materials to build the subgrade, subbase, etc., will drastically reduce the overall cost of paving a road. If local soils are not stable enough to bear the loads, appropriate procedures
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