The Soil-Water Characteristic Curve of Unsaturated Tropical Residual Soil

This study was conducted to determine the SWCC of unsaturated tropical residual soil in Kuala Lumpur, Malaysia. Undisturbed soil samples at five locations of high-risk slopes area were taken at a depth of 0.5 m using block sampler. In the determination of the SWCC, the pressure plate extractor with...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2016-07, Vol.136 (1), p.12013-12019
Main Authors: Yusof, M F, Setapa, A S, Tajudin, S A A, Madun, A, Abidin, M H Z, Marto, A
Format: Article
Language:English
Subjects:
Atterberg limits
Curve fitting
Density
Mathematical analysis
Matric suction
Moisture content
Plasticity index
Residual soils
Soil (material)
Soil classification
Soil moisture
Soil properties
Soil suction
Soil water
soil water characteristic curve
Specific gravity
Unsaturated soil
Unsaturated soils
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:This study was conducted to determine the SWCC of unsaturated tropical residual soil in Kuala Lumpur, Malaysia. Undisturbed soil samples at five locations of high-risk slopes area were taken at a depth of 0.5 m using block sampler. In the determination of the SWCC, the pressure plate extractor with the capacity of 1500 kN m2 has been used. The index properties of the soil such as natural moisture content, Atterberg limits, specific gravity, and soil classification are performed according to BS 1377: Part 2: 1990. The results of index properties show that the natural moisture content of the soil is between 36% to 46%, the plasticity index is between 10% - 26%, the specific gravity is between 2.51 - 2.61 and the soils is classified as silty organic clay of low plasticity. The SWCC data from the pressure plate extractor have been fitted with the Fredlund and Xing equation. The results show that the air entry value and residual matric suction for residual soils are in the range of 17 kN m2 to 24 kN m2 and 145 kN m2 to 225 kN m2 respectively. From the fitting curve, it is found that the average value of the Fredlund and Xing parameters such as a, n and m are in the range of 0.24-0.299, 1.7-4.8 and 0.142-0.440 respectively.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/136/1/012013