Compressive Properties of Crushed Stone-Loess Reinforced with Geogrid

Abstract:

In order to study the mechanical properties of Crushed Stone-Loess (CSL), a mixture of loess and crushed stone, and Geogrid-reinforced CSL (GCSL), a series of unconfined compression tests were conducted using samples prepared respectively with CSL, GCSL, Pure Loess (PL) or Geogrid-reinforced PL (GPL). Samples varied either in the number of geogrid-reinforcement layers or in the relative compaction / in the content of crushed stone. Based on the analysis of the test results, the following conclusions are given: (1) The pattern of compressive stress-strain curves of GCSL changes gradually from obvious strain softening to strain hardening with the increase of the geogrid-reinforcement layers and the relative compaction. (2) While the compressive strain is greater than a certain value, the compressive strength of GCSL increases significantly with the increase of crushed stone content. (3) Under a larger compressive strain, the crushed stone inclusions improve apparently the compressive property of GCSL with closely spaced geogrid-reinforcement layers due to the interlocking between the crushed stone and the geogrid.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 589-592
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.589
• Online since: August 2013
• Authors: You Chang Hu*, Jun Min Shen, Guang Dou Gu, Hua Nan Cai
• Keywords: Crushed Stone-Loess, Geogrid Reinforcement, Unconfined Compression Tests

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