The stabilizing granular soil with slow-setting and slight-expansive cement

Abstract

According to the characteristics of granular soil, the technological requirements of the special-purpose cement for stabilizing granular soil are put forward to meet the demands of implementation of highway base engineering. A kind of slow-setting and slight-expansive cement is developed by the cross experiment method in slag-clinker-gypsum-alkaline system, the final setting time of the cement can be prolonged to 8h, and it has properties of low dry shrinkage, high flexural strength and good crack resistance. The strength of granular soil stabilized by the cement is increased by 20% compared with that stabilized by Chinese 425-Grade slag cement.

Keywords

cement-stabilized soil / slag / setting time / slight-expansion / highway base

References

[1] Road Science Institute of Traffic Department Technical Specification for Construction of Highway Pavement Base (JTJ034-93), 1993, Beijing: The People Traffic Press.

[2] Zhang Qisheng. Analyses on Fracture Stress and Summarization of Study on Reflection Crack of Semi-rigid base Asphalt Pavement.Journal of Foreign Highway (in Chinese), 1987(6)

[3] Wei Shen. Cement Technology, 1990, Wuhan: Wuhan University of Technology Press, 315-315.