MODIFYING A PLASTIC CLAY WITH CRUSHED GLASS: IMPLICATIONS FOR CONSTRUCTED FILLS

SOILS AND FOUNDATIONS

MICHAEL CARNIVALE III¹  NICHOLAS E. MALASAVAGE¹  PATRICIA M. GALLAGHER¹  JOSEPH WARTMAN²  DENNIS G. GRUBB³ 

[1] Department of Civil, Architectural and Environmental Engineering, Drexel University;Department of Civil, Architectural and Environmental, Drexel University;Schnabel Engineering North

关键词: clay;    compaction;    consolidation;    engineering development;    laboratory tests;    physio-chemical properties;    soil stabilization;    soil structure;    special soil;    triaxial compression test;    (IGC: D2/D3/D9);   

DOI  :  10.3208/sandf.47.1017

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(41)A laboratory study was conducted to evaluate the potential of 9.5mm-minus crushed glass (CG) to improve the physical and strength properties of a high plasticity soil (CH). The model soil used in this study, a kaolinite-bentonite mixture or “model” clay (MC), was chosen to represent the properties of naturally occurring fat clays, as well as to provide baseline data for future comparison of site-specific CH soils. Tests were performed on 100% MC and 80/20, 60/40, 40/60, 20/80 CG-MC (dry CG weight% reported first) blends using the CG previously evaluated by Grubb et al. (2006a). The most significant incremental increases in maximum dry density for standard (2.8 kN/m3) and modified (2.5 kN/m3) Proctor compactive effort and decreases in moisture sensitivity (14 and 12%), respectively, were observed to occur with the addition of 40% CG. By a CG content of 40%, the effective friction angle increased by about 5° while the compressibility decreased by about 33%. Similar improvements of lesser magnitude occurred with additional incremental (20%) increases in CG content.

【 授权许可】

Unknown