详情

原文传递 EFFECTS OF FIBER REINFORCEMENT ON STRENGTH AND VOLUME CHANGE IN EXPANSIVE SOILS.

题名：	EFFECTS OF FIBER REINFORCEMENT ON STRENGTH AND VOLUME CHANGE IN EXPANSIVE SOILS.
作者：	Puppala-AJ; Musenda-C
关键词：	Compressive-strength; Expansive-clays; Fibers-; Future-; Polypropylene-; Reinforcement-Engineering; Research-; Shrinkage-; Soil-stabilization; Swelling-; Swelling-soils; Volume-changes
摘要：	The results of a research study to investigate the influence of discrete and randomly oriented polypropylene fiber reinforcement on expansive soil stabilization are presented. Two expansive soils were used as control soils in the testing program. Two types of fibers and four fiber dosages (0, 0.3, 0.6, and 0.9% by dry weight of soil) were considered. Both raw and fiber-reinforced clayey samples were prepared and subjected to unconfined compressive strength (UCS), volumetric shrinkage, three-dimensional free swell, and swell pressure tests. Test results were statistically analyzed to investigate the effectiveness of fiber reinforcement on strength, swell, and shrinkage characteristics of expansive clays. Results indicated that the fiber reinforcement enhanced the UCS of the soil and reduced both volumetric shrinkage strains and swell pressures of the expansive clays. The fiber treatment also increased the free swell potential of the soils. Practical implications of the findings and future research directions are discussed.
总页数：	Transportation Research Record. 2000. (1736) pp134-140 (3 Phot., 4 Fig., 4 Tab., 13 Ref.)
报告类型：	科技报告