Shear modulus and damping ratio of grouted sand

• Published in: Soil dynamics and earthquake engineering (1984) Vol. 24; no. 6; pp. 461 - 471
• Main Authors: Delfosse-Ribay, Estelle, Djeran-Maigre, Irini, Cabrillac, Richard, Gouvenot, Daniel
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.08.2004; Elsevier Science; Elsevier
• Subjects: Applied geology; Cement-based grout; Cyclic triaxial test; Damping ratio; Earth Sciences; Earth, ocean, space; Earthquakes, seismology; Engineering and environment geology. Geothermics; Engineering geology; Engineering Sciences; Exact sciences and technology; Grouted sand; Internal geophysics; Mineral-based grout; Natural hazards: prediction, damages, etc; Other; Resonant column; Sand; Sciences of the Universe; Shear modulus; Silicate grout; Sand; Cyclic triaxial test; Shear modulus; Grouted sand; Resonant column; Silicate grout; Cement-based grout; Mineral-based grout; Damping ratio; strain; stress; shear modulus; fine-grained materials; triaxial tests; stiffness; dynamic properties; grouting; sand; cement; materials; confining pressure; silicates; Resonant Column; Cement-Based Grout; Cyclic Triaxial Test; Grouted Sand; Silicate Grout; Mineral-Based Grout; Shear Modulus; Damping Ratio
• ISSN: 0267-7261; 1879-341X
• DOI: 10.1016/j.soildyn.2004.02.004

An experimental comparative study of three different grouted sands in terms of their effects on the values of two dynamic properties is presented. The dynamic properties studied are the shear modulus and the damping ratio which are determined with resonant column tests and cyclic triaxial tests. The behaviour of a pure Fontainebleau sand is compared with the behaviour of a Fontainebleau sand grouted with a silicate grout, a micro-fine cement grout and a mineral grout. The effects of the grouting treatment, the type of grout, the confining pressure, and the strains, on the shear modulus and the damping ratio are studied. The test results have shown that grouting improves the stiffness of the sand especially for small strains. Whatever the type of material, confining stress improves the shear modulus whereas it has a negligible effect on the damping ratio. When strain increases, the shear modulus decreases and the damping ratio increases.