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Study on Strength and Microscopic Properties of Stabilized Silt

  • Xiaobin Zhang
  • Zhiduo Zhu
  • Renjie Wei
Conference paper

Abstract

Stabilization is an effective method to improve the engineering properties of silt. In order to investigate the effect and mechanism of lime, cement + lime and a new curing agent stabilized silt, the unconfined compressive strength testes and scanning electron microscopy (SEM) testes are carried out. After the unconfined compressive strength testes, the impact of curing agent and admixture dosage on strength are analyzed. The strength increases significantly with the increase of admixture dosage and curing age, and the stabilizing effect of the new curing agent is better than that of the other two curing agents. Then microscopic testes of stabilized silt are carried out, and the scanning electron microscopy (SEM) images are obtained. The silt microstructure changes after stabilizing: particle size increases; particles are embedded more closely; the number of pores reduces. Based on the microstructure properties of stabilized silt, the mechanism of stabilizing silt is discussed, which has certain reference value for guiding the silt stabilizing design.

Keywords

Silt Stabilization Unconfined compressive strength Microcosmic Mechanism 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Southeast UniversityNanjingChina
  2. 2.China Shipbuilding Industry Institute of the Engineering Investigation & Design Co. Ltd.ShanghaiChina

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