Effect of fly ash on engineering properties of expansive soils

被引：241

作者：

Kumar, BRP ^{[1
]}

Sharma, RS

机构：

[1] Univ Bradford, Dept Civil & Environm Engn, Bradford BD7 1DP, W Yorkshire, England

[2] Iowa State Univ Sci & Technol, Dept Civil Construct & Environm Engn, Ames, IA 50011 USA

来源：

JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING | 2004年 / 130卷 / 07期

关键词：

expansive soils; fly ash; swelling pressure; penetration resistance; shear strength;

D O I：

10.1016/(ASCE)1090-0241(2004)130:7(764)

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This note presents a study of the efficacy of fly ash as art additive in improving the engineering characteristics of expansive soils. An experimental program has evaluated the effect of the fly ash content on the free swell index, swell potential, swelling pressure, plasticity, compaction, strength, and hydraulic conductivity characteristics of expansive soil. The plasticity, hydraulic conductivity and swelling properties of the blends decreased and the dry unit weight and strength increased with an increase in fly ash content. The resistance to penetration of the blends increased significantly with an increase in fly ash content for a given water content. Excellent correlation was obtained between the measured and predicted undrained shear strengths.

引用

页码：764 / 767

页数：4

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