Journal of Guangdong University of Technology ›› 2019, Vol. 36 ›› Issue (06): 86-91.doi: 10.12052/gdutxb.190022

• Comprehensive Studies • Previous Articles     Next Articles

An Experimental Research on the Effect of Organic Matter on Mechanical Properties of Cementing Solidified Silt

Liang Shi-hua, Zhou Jin-cheng, Luo Qi, Lin Huan-sheng   

  1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2019-01-19 Online:2019-11-28 Published:2019-11-28

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Abstract: In order to study the adverse influences of organic matter on the strength of cementing solidified silt, humic acid was added to the dry silt to prepare silt with different organic matter content, then it was reinforced with different mass fractions of cement. The unconfined compressive strength test was used to analyze the content of organic matter and the effects of age on UCS of solidified organic silt. The test results show that the existence of organic matter seriously hinders the hydration reaction of cement, but the influence of organic matter on the strength of cementing solidified silt is limited, and beyond this limit (5%), the effect of the increase of organic matter content on the strength decline of cementing solidified silt is not obvious. The strength of cementing solidified silt increases exponentially with the increase of cement content. As the age increases, the strength of organic cementing solidified silt is still far lower than that of ordinary cementing solidified silt, indicating that the influence of organic matter does not decrease with age.

Key words: organic matter, cement soil, reinforcement, Nansha silt in Guangzhou, unconfined compressive strength

CLC Number: 

  • TU472.6
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