Pre- and post-cyclic loading strength of silica-grouted sand
Küçük Resim Yok
Tarih
2010
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this study is to investigate whether there is a loss in the strength of fine- to medium-grained colloidalsilica-grouted sand after cyclic loading. First, the rheological properties of colloidal silica grouts, such as gel time and viscosity, are studied. Then, appropriate colloidal silica grouts (saline solution/colloidal silica suspension ratios of 10%, 15%, 20% and 25% by weight) are selected. The selected colloidal silica grouts are then injected into fine- to medium-grained sand specimens prepared at an overall relative density of 50%. The strength of the grouted sand specimens is determined by unconfined compression tests. The effect of curing period on the strength of the grouted samples is also investigated. After performing cyclic loading tests on grouted sand specimens at different cyclic stress ratios (0, 0.13, 0.26 0.39 and 0.52), it is observed that none of the samples failed or was damaged, and that the colloidal silica grout provides fine- to medium-grained sand with a significant resistance to cyclic deformation. The samples are then subjected to unconfined compression tests, and the results show that the loss in the strength of colloidal-silica-grouted sand is insignificant.
Açıklama
Anahtar Kelimeler
Granular materials, Grouting, Strength, Testing of materials, Colloidal silica, Cyclic deformations, Cyclic loading test, Cyclic loadings, Cyclic stress ratio, Gel time, Relative density, Rheological property, Silica suspensions, Strength, Unconfined compression tests, Compression testing, Concrete construction, Cyclic loads, Granular materials, Loading, Materials testing, Mortar, Rheology, Sand, Silica, Stress analysis, Suspensions (fluids), Grouting, compressive strength, cyclic loading, deformation, granular medium, grouting, rheology, sand, Granular materials, Grouting, Strength, Testing of materials, Colloidal silica, Cyclic deformations, Cyclic loading test, Cyclic loadings, Cyclic stress ratio, Gel time, Relative density, Rheological property, Silica suspensions, Strength, Unconfined compression tests, Compression testing, Concrete construction, Cyclic loads, Granular materials, Loading, Materials testing, Mortar, Rheology, Sand, Silica, Stress analysis, Suspensions (fluids), Grouting, compressive strength, cyclic loading, deformation, granular medium, grouting, rheology, sand
Kaynak
Proceedings of the Institution of Civil Engineers: Geotechnical Engineering
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
163
Sayı
6
