Experimental study of expansive soil stabilized with rice husk ash and quarry dust for subgrade application

Expansive soil is brittle and unstable, making it unsuitable for any sort of construction. The subgrade is a layer beneath the sub base course of a flexible pavement. Improving the subgrade’s engineering qualities is critical for making it stable. To improve the strength of subgrade soil, stabilisat...

Full description

Saved in:
Bibliographic Details
Main Authors: Sajja, Satish, Koganti, Shyam Prakash
Format: Conference Proceeding
Language:English
Subjects:
Ashes
Atterberg limits
Base course
Construction costs
Dust
Expansive soils
Flexible pavements
Pavement design
Quarries
Rice
Sieve analysis
Soil properties
Soil stabilization
Soil strength
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Expansive soil is brittle and unstable, making it unsuitable for any sort of construction. The subgrade is a layer beneath the sub base course of a flexible pavement. Improving the subgrade’s engineering qualities is critical for making it stable. To improve the strength of subgrade soil, stabilisation of using Rice Husk ash (5%, 7%, 10%) and Quarry Dust (10%, 20%, 30%) is employed in this study. Identification of optimum dose of stabilizer is the prime objective of the study and analyzes the performance of admixtures. Various geotechnical tests like Sieve analysis, Atterberg limits, Proctor test for OMC, MDD and CBR tests are performed and evaluated the properties of natural soil and treated soil. The results indicate a greater increment in strength aspect in terms of CBR with Quarry dust where as results are not upto requirement for design of pavement when using rice husk ash as stabilizer. The pavement design as per IRC:37-2018 of for traffic range carrying 5 to 50msa is done and results reveal using quarry dust the thickness of pavement is reduced considerably which decreases cost of construction.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0146872