Cyclic strength of a natural liquefiable sand stabilized with colloidal silica grout

J. A. Díaz-Rodríguez; V. M. Antonio-Izarraras; P. Bandini; J. A. López-Molina

doi:10.1139/t08-072

journal article Oct 01, 2008

Cyclic strength of a natural liquefiable sand stabilized with colloidal silica grout

J. A. Díaz-Rodríguez V. M. Antonio-Izarraras P. Bandini J. A. López-Molina

Canadian Geotechnical Journal Vol. 45 No. 10 pp. 1345-1355 · Canadian Science Publishing

View at Publisher Save 10.1139/t08-072

Abstract

This paper summarizes the experimental results of a series of cyclic simple shear tests on liquefiable silty sand with and without sample improvement with colloidal silica grout. The objective of the paper is to evaluate the effectiveness of colloidal silica grouting in reducing the liquefaction potential of natural silty sand. Colloidal silica was selected as a stabilizing material due to its low viscosity, wide range of gel times, nontoxicity, and low cost. The soil tested in this experimental program is a poorly graded sand with 11.5% of nonplastic silt from the Port of Lázaro Cárdenas, México. Colloidal silica treated and untreated sand specimens show different pore pressure response and deformation behavior under cyclic loading in simple shear tests. The results indicate that, for a given initial relative density and initial effective vertical stress, liquefiable silty sand specimens stabilized with colloidal silica grout generally exhibit significant gain in liquefaction resistance compared with untreated specimens. It was also found that the colloidal silica grout reduces considerably the rates of pore pressure generation and shear strain of the silty sand specimens subjected to cyclic loading.

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Details

Published: Oct 01, 2008
Vol/Issue: 45(10)
Pages: 1345-1355
License: View

Authors

J

J. A. Díaz-Rodríguez

National University of Mexico, Apartado Postal 70-165, México City 04510, México.; Universidad Popular Autónoma del Estado de Puebla, Puebla City, México.; Civil Engineering Department, New México State University, Las Cruces, NM 88003-8001, USA.

V

V. M. Antonio-Izarraras

National University of Mexico, Apartado Postal 70-165, México City 04510, México.; Universidad Popular Autónoma del Estado de Puebla, Puebla City, México.; Civil Engineering Department, New México State University, Las Cruces, NM 88003-8001, USA.

P

P. Bandini

National University of Mexico, Apartado Postal 70-165, México City 04510, México.; Universidad Popular Autónoma del Estado de Puebla, Puebla City, México.; Civil Engineering Department, New México State University, Las Cruces, NM 88003-8001, USA.

J

J. A. López-Molina

National University of Mexico, Apartado Postal 70-165, México City 04510, México.; Universidad Popular Autónoma del Estado de Puebla, Puebla City, México.; Civil Engineering Department, New México State University, Las Cruces, NM 88003-8001, USA.

Cite This Article

J. A. Díaz-Rodríguez, V. M. Antonio-Izarraras, P. Bandini, et al. (2008). Cyclic strength of a natural liquefiable sand stabilized with colloidal silica grout. Canadian Geotechnical Journal, 45(10), 1345-1355. https://doi.org/10.1139/t08-072

Cyclic strength of a natural liquefiable sand stabilized with colloidal silica grout

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