Unconfined compression strength of an artificially cemented aeolian dune sand of Natal/Brazil

被引：0

作者：

Fontoura, Tahyara Barbalho ^{[1
,2
]}

dos Santos Junior, Olavo Francisco ^{[3
]}

Flores Severo, Ricardo Nascimento ^{[4
]}

Coutinho, Roberto Quental ^{[2
]}

de Souza Junior, Paulo Leite ^{[5
]}

机构：

[1] Inst Fed Educ Ciencia & Tecnol Rio Grande do Nort, Diretoria Acad, Sao Paulo Do Potengi, RN, Brazil

[2] Univ Fed Pernambuco, Dept Engn Civil, Recife, PE, Brazil

[3] Univ Fed Rio Grande do Norte, Dept Engn Civil, Natal, RN, Brazil

[4] Ist Fed Educ Ciencia & Tecnol Rio Grande do Norte, Dept Construcao Civil, Natal, RN, Brazil

[5] Univ Fed Rio Grande do Norte, Natal, RN, Brazil

来源：

SOILS AND ROCKS | 2021年 / 44卷 / 01期

关键词：

Unconfined compression; Cemented sand; Dune sand; Natal sand; Strength compression; PARAMETERS;

D O I：

10.28927/SR.2021.049920

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Soil behavior is influenced by the void ratio and bonds between grains. The aim of this study was to describe the strength behavior of an aeolian sand from the dunes of Natal, Brazil, artificially cemented in unconfined compression tests. The influence of cement content and moisture on molding and the validity of using the void/cement factor in estimating unconfined compression strength (UCS) were assessed. Tests were conducted with samples using three molding moisture contents (6, 9 and 12%), four cement contents (2.5, 5.0, 7.5 and 10%) and a void ratio of 0.6 (Dr = 95%). The results showed that unconfined compression strength rises with increase in cement content and decreasing in molding moisture. The void/cement factor proved to be a reliable parameter in predicting the behavior of sand from Natal for the dosage of soil cement.

引用

页数：8

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