›› 2009, Vol. 30 ›› Issue (9): 2737-2740.

• Geotechnical Engineering • Previous Articles     Next Articles

Comparation analyses of the effects of marine soft soil improved by portland cement and slag cement

XU Chao1, GUO Hong-feng2, YANG Xiao-ming1 , XING Hao-feng1   

  1. 1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 2. Overseas Department of Shanghai Construction Group, Shanghai 200020, China
  • Received:2008-04-29 Online:2009-09-10 Published:2010-03-24

Abstract:

The unconfined compression test is utilized to research on the cemented marine soft clay and testifies that there is considerable discrepancy between the effect improved by slag cement and that by Portland cement. X-ray diffraction analysis is employed to investigate the mechanism and the causes of the discrepancy. It is observed that the strength of the cemented soil is related to the amount of the cement hydrates. Slag cement generates more hydrates, and restricts the influence of soluble salt in the soft clay on cemented soil.

Key words: cemented soil, improving effect, unconfined compression test, X-ray diffraction

CLC Number: 

  • TU 447
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