Microstructure of a compacted silt

被引：373

作者：

Delage, P ^{[1
]}

Audiguier, M ^{[1
]}

Cui, YJ ^{[1
]}

Howat, MD ^{[1
]}

机构：

[1] ECOLE MINE PARIS, ENGN GEOL RES CTR, F-75272 PARIS 05, FRANCE

来源：

CANADIAN GEOTECHNICAL JOURNAL | 1996年 / 33卷 / 01期

关键词：

compacted soil; microstructure; scanning electron microscope; pore size distribution; mercury intrusion; clay hydration;

D O I：

10.1139/t96-030

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This paper presents a qualitative and quantitative study of the microstructure of a compacted silt, carried out using a scanning electron microscope and mercury intrusion pore size distribution measurements. Samples have been statically compacted at three water contents: on the dry side of the standard Proctor optimum water content, at the optimum, and on the wet side. The wet sample has a matrix type structure, with a clayey fraction filling the voids and adhering to the silt-sized grains, whereas the other samples display a structure characterized by a skeleton made of silt grain aggregates linked together by clayey bridges. The distribution of water and air within the microstructure of the compacted soil is described for each of the three compaction states.

引用

页码：150 / 158

页数：9

共 25 条

[1]

Ahmed S., 1974, ASCE J GEOTECHNICAL, V100, P407

[2] DOMAIN OR TURBOSTRATIC STRUCTURE OF CLAYS [J].

AYLMORE, LAG ;

QUIRK, JP .

NATURE, 1960, 187 (4742) :1046-1048

[3]

BENNETT HR, 1991, MICROSTRUCTURE FINE

[4] INFLUENCE OF CLODS ON HYDRAULIC CONDUCTIVITY OF COMPACTED CLAY [J].

BENSON, CH ;

DANIEL, DE .

JOURNAL OF GEOTECHNICAL ENGINEERING-ASCE, 1990, 116 (08) :1231-1248

[5] SOME PROPERTIES OF CLAY ON AN OPTIMAL LINE OF COMPACTION [J].

CABOT, L ;

LEBIHAN, JP .

CANADIAN GEOTECHNICAL JOURNAL, 1993, 30 (06) :1033-1040

[6]

CASAGRANDE A, 1932, J BOSTON SOC CIV ENG, V15, P72

[7]

COLLINS K, 1974, GEOTECHNIQUE, V24, P233

[8] INFLUENCE OF LYOPHILIZATION ON THE STRUCTURE OF A SENSITIVE QUEBEC CLAY [J].

DELAGE, P ;

PELLERIN, FM .

CLAY MINERALS, 1984, 19 (02) :151-160

[9] USE OF THE CRYOSCAN APPARATUS FOR OBSERVATION OF FREEZE-FRACTURED PLANES OF A SENSITIVE QUEBEC CLAY IN SCANNING ELECTRON-MICROSCOPY [J].

DELAGE, P ;

TESSIER, D ;

MARCELAUDIGUIER, M .

CANADIAN GEOTECHNICAL JOURNAL, 1982, 19 (01) :111-114

[10] STUDY OF THE STRUCTURE OF A SENSITIVE CHAMPLAIN CLAY AND OF ITS EVOLUTION DURING CONSOLIDATION [J].

DELAGE, P ;

LEFEBVRE, G .

CANADIAN GEOTECHNICAL JOURNAL, 1984, 21 (01) :21-35

← 1 2 3 →