Stabilization of Expansive Sub-grade Soil Using Hydrated Lime and Dolomitic-Limestone By-Product (DLP)

The existence of expansive subgrades is a challenge especially during pavement construction due to its drastic volume changes. In this case, the common practice is to remove the natural expansive soil and replace it with non-expansive soil. However, this solution becomes unviable for deep long exten...

Full description

Saved in:
Bibliographic Details
Published in:Geotechnical and geological engineering 2020-04, Vol.38 (2), p.1605-1617
Main Authors: Ahmed, Amira H., Hassan, Asmaa M., Lotfi, Hani A.
Format: Article
Language:English
Subjects:
Atterberg limits
Byproducts
Chemical analysis
Civil Engineering
Clay
Dolomitic limestone
Earth and Environmental Science
Earth Sciences
Expansion
Expansive clays
Expansive soils
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Lime
Lime soil stabilization
Limestone
Original Paper
Pavement construction
Soil
Soil improvement
Soil lime
Soil properties
Soil stabilization
Soil strength
Stabilizers
Stabilizers (agents)
Stabilizing
Swell
Terrestrial Pollution
Testing
Waste Management/Waste Technology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The existence of expansive subgrades is a challenge especially during pavement construction due to its drastic volume changes. In this case, the common practice is to remove the natural expansive soil and replace it with non-expansive soil. However, this solution becomes unviable for deep long extending formations of natural expansive soils. Therefore, efforts have been done in order to improve the properties of expansive soil using different types of stabilizers. In this paper, two types of stabilizing agents are investigated: hydrated lime and dolomitic limestone by-product. A testing program is selected to evaluate the swell-strength behaviour of artificially prepared sand-expansive clay mixtures. The testing program includes Atterberg limits, modified Proctor, free swell, CBR, pH and chemical analysis tests. Moreover, the soil expansivity and strength after treatment are evaluated based on relationships proposed by literature and the Egyptian Code.
ISSN:0960-3182
1573-1529
DOI:10.1007/s10706-019-01115-5