The properties of road base course materials of granular soils stabilized by AGS granular soil stabilizing cement

Abstract

The properties of road base course materials of granular soils stabilized by AGS granular soil stabilizing cement^[1] were studied. The AGS cement has an expansibility to a certain degree, so the dry shrinkage of AGS cement paste and AGS stabilized granular is much lower than that of Portland slag cement. AGS has a good suitability to granular soils. Granular soils stabilized by AGS have a much higher strength than that of soils stabilized by P S cement. The same strength can be reached with 20% reduction of cement dosage for AGS cement. And their elastic and resilient modulus are similar, but the former has a much higher tensile splitting strength, so the AGS stabilized granular has a much better anti-cracking performance than that of the P S stabilized granular. The reduced value of the strength and the density with the retard time for the granular soils stabilized by AGS is lower than that for P S cement.

Keywords

AGS cement / property / road base material / anti-cracking performance

References

[1] Mingkai Zhou, Weiguo Shen. A New Type of Granular Soil Stabilizing Material. Journal of Wuhan University of Technology— Mater. Sci. Ed., 2001, 16(1): 51-55.

[2] Aiming Sha, Dengliang Zhang. Laboratorial Study on Anti-cracking Characteristic of Semi-rigid Base Materials in Xi’an-Sanyuan Highway. Journal of Xi’an Institute of Highway, 1998, 18(1): 1-7. (in Chinese)

[3] Mengliang Zhou, Yingxiang Xi. The Characteristic of the Compression Stress-strain Completing Curves of Pavement Semi-rigid Base Material. China Journal of Highway and Transport, 1999, 12(2): 23-27. (in Chinese)