Influence of Water Treatment Sludge Addition on the Compressibility and Shear Strength Parameters of Two Lateritic Soils

被引：0

作者：

Montalvan, Edy L. T. ^{[1
]}

Ferreira, Kemmylle S. M. ^{[1
]}

Godoy, Rafaela V. S. ^{[1
]}

Boscov, Maria E. G. ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Struct & Geotech Engn, Sao Paulo, Brazil

来源：

GEOTECHNICAL ENGINEERING IN THE XXI CENTURY: LESSONS LEARNED AND FUTURE CHALLENGES | 2019年

基金：

巴西圣保罗研究基金会;

关键词：

Water treatment sludge; lateritic soils; compaction; compressibility; shear strength;

D O I：

10.3233/STAL190310

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This article analyzes the influence of the addition of water treatment sludge (WTS) on the compressibility and shear strength parameters of two Brazilian lateritic soils (a clayey sand and a clay) in order to enable the waste reuse at geotechnical works. The lateritic soils, the WTS and the mixtures were geotechnically characterized and subjected to compaction, one-dimensional consolidation and undrained triaxial compression tests. WTS addition altered the compaction parameters of the soils by decreasing the maximum dry unit weight and increasing the optimum water content. The mixtures presented higher values of compression indexes than the soils, and correlations are presented relating compression index to WTS content. The effective cohesion decreased with WTS addition and the effective friction angle increased. Nevertheless, some the obtained values for compressibility and shear strength parameters can still be allowable for earthworks, depending on the structure requirements.

引用

页码：2422 / 2430

页数：9

共 10 条

[1]

ASTM, 2017, D2487-17

[2]

Ferreira K.S., 2019, 9 C BRAS GEOT AMB RE

[3]

Lunardi D., 2013, THESIS

[4]

Montalvan E.L.T, 2016, THESIS

[5]

NOGAMI J. S., 1995, Pavimentacao de Baixo Custo com Solos Lateriticos

[6] Shear strength properties of water treatment residues [J].

O'Kelly, Brendan C. ;

Quille, Michael E. .

PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GEOTECHNICAL ENGINEERING, 2010, 163 (01) :23-35

[7]

Roque A.J., 2006, 5 ICEG ENV GEOT OPP, P1535

[8]

Tsugawa J.K., 2004, THESIS

[9]

Vega B. J. J., 2016, THESIS

[10]

Zanon TVB, 2013, THESIS

← 1 →