Title:
Permeability Characteristics of Superfine Cement-Grouted Sand
Author(s):
Eyubhan Avci and Murat Mollamahmutoglu
Publication:
Materials Journal
Volume:
114
Issue:
1
Appears on pages(s):
21-28
Keywords:
grout properties; groutability; permeability; superfine slag-based cement
DOI:
10.14359/51689471
Date:
1/1/2017
Abstract:
The aim of this research was to investigate the permeability of
superfine cement-grouted sand. Initially, rheology of superfine
cement suspensions was studied. The sedimentation and the setting time increased but the viscosity decreased as the water-cement ratio (w/c) increased. In addition, the penetrability of superfine cement suspensions with different w/c into various graded sand specimens prepared at different relative densities was tested. The penetrability of suspensions into the sand specimens was successful and increased as the w/c increased, but decreased as the relative density increased. Grouted sand samples were kept in a humidity room at a temperature of 20°C (68°F) until testing time and subjected to permeability tests at different time intervals. The coefficient of permeability increased as the w/c increased, but decreased as the relative density and the percentage of fines increased. Additionally, the coefficient of permeability of grouted samples decreased slightly with time.
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