Research on Wet-Chemical Deformation of Roadbed Built with Weathered Stone

Abstract:

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Based on analyses on mineral composition, mechanical property and hydrology property, large-scale triaxial shear test and vibration test were used to study the effect on strength and deformation characteristic, which was caused by wet-chemical and soften of the fillings. Then trial roadbed was filled with 3 typical rocks. Modulus of resilience on the top of the roadbed was gotten via a larger-diameter (D=75 cm) plate loading test which could provide important parameter for pavement structure design. Wet-chemical deformation is researched under constant load amount to deadweight of the roadbed. Experiment results show : (1)single-axle compressive strength (>15 MPa) and modulus of resilience (E0=91.7 MPa) of 3 fillings match the requirement according to specification; (2) these 3 rocks can be used as filling in roadbed; (3) as the fillings have wet-chemical, soften, and expansion properties, the suggestion of damp-proofing and drainage works should be adopted in construction.

Info:

Periodical:

Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan

Pages:

3695-3699

DOI:

10.4028/www.scientific.net/AMR.383-390.3695

Citation:

C. Q. Hou et al., "Research on Wet-Chemical Deformation of Roadbed Built with Weathered Stone", Advanced Materials Research, Vols. 383-390, pp. 3695-3699, 2012

Online since:

November 2011

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Price:

$35.00

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