Research on the Mechanical Properties and Micro-Morphology of the Cement Stabilized Gravel with Rubber Particles

Abstract:

The primary objective of this paper was to study the mechanical properties of the cement stabilized gravel by different compact method which added rubber particles by using macroscopic and microscopic test. Through test of compression, relationships of mechanical properties of samples were studied. Pore structure and fractal characteristic of mixture was analyzed quantitatively using mercury intrusion porosimetry (MIP), scanning electron microscope (SEM) was applied to analyze the micro-morphology of samples. The tests results showed that the compressive strength of samples which prepared by using vibrating method was greater than that by static pressure method. Compressive strength of samples from vibrating method or static pressure method decreased with the rubber particles volume fraction increase. MIP tests showed that the mean pore diameter and porosity of mixture increased from about 70nm to 250nm and 9% to 24% with the rubber particles content increasing, respectively. SEM tests showed that the interface bonding between sand and hardened cement paste was better than that of between rubber particles and hardened cement paste.

• Periodical: Applied Mechanics and Materials (Volume 470)
• Pages: 827-831
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.470.827
• Online since: December 2013
• Authors: Ruo Chong Yang, Kai Li*, Ji Peng Zhu, Teng Kuo Zhu, Hong Lei Zhu, He Jie Han
• Keywords: Mechanical Property, MIP, Pavement, Rubber Cement Stabilized Gravel, SEM, Vibrating Method

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