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Cyclic and damping properties of silicate-grouted sand
Faculty
Not Specified
Year:
2000
Type of Publication:
Article
Pages:
650-656
Authors:
Ata, A, Vipulanandan, C
DOI:
10.1061/(ASCE)1090-0241(2000)126:7(650)
Journal:
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING ASCE-AMER SOC CIVIL ENGINEERS
Volume:
126
Research Area:
Engineering; Geology
ISSN
ISI:000087607700007
Keywords :
Cyclic , damping properties , silicate-grouted sand
Abstract:
Dynamic properties such as shear modulus, damping ratio, and fatigue strength of a sodium silicate-grouted sand were investigated using both destructive and nondestructive tests. Cyclic compression behavior of grouted sand was investigated in load control mode at a frequency of 1.0 Pit. The hysteretic behavior of grouted sand was studied with the number of loading cycles and curing times. The impact-echo test, a nondestructive method, was used to determine the dynamic properties of grouted sand cured up to 2 years. Variation of strength with the number of loading cycles (fatigue life) is quantified using a probabilistic approach. The compressive modulus of the grouted-sand system decreased with an increased number of cyclic loadings. The damping ratio for silicate-grouted sand increased from 3\% at early stages of loading to 6\% before failure. The dynamic moduli and damping ratio obtained from the impact-echo method were in agreement with those from cyclic compression tests.
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