Effect of polymer emulsion on the bearing capacity of aeolian sand under extreme confinement conditions

被引：18
作者：
Arias-Trujillo, Juana [1 ]
Matias-Sanchez, Agustin [1 ]
Cantero, Blas [1 ]
Lopez-Querol, Susana [2 ]
机构：
[1] Univ Extremadura, Dept Construct, Sch Engn, Avda Univ S-N, Caceres 10003, Spain
[2] UCL, Dept Civil Environm & Geomat Engn, London WC1E 6BT, England
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 236卷
关键词：
Aeolian sand; Acrylic polymer emulsion; Compaction; Bearing capacity; Confined and unconfined conditions; Soil stabilization; CEMENT KILN DUST; DUNE SAND; COMPRESSIVE STRENGTH; HIGHWAY CONSTRUCTION; STABILIZATION; SOIL; IMPROVEMENT; DESERT;
D O I：
10.1016/j.conbuildmat.2019.117473
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An experimental investigation, aimed at evaluating the improvement of aeolian sand (from Saudi Arabia) when treated with low dosages of a vinyl acrylic (a polymer emulsion), is reported in this Gaper. Special attention is devoted to the influence of the lateral confinement, particularly in terms of compaction and bearing capacity (represented by CBR), for which a modification of the standard test has been developed trying to simulate extreme confinement conditions. Experimental results demonstrate that this kind of chemical stabilizers can be considered as a suitable alternative for these materials. The main modifications induced in the sand by this additive are highlighted and quantified by means of the modification achieved for different geotechnical properties as well as Scanning Electron Microscope (SEM) and Energy-Dispersive X-Ray Spectroscopy (EDX) analyses. (C) 2019 Elsevier Ltd. All rights reserved.
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页数：16
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