01090654

Component

https://doi.org/10.3141/2059-06

http://scholar.google.com...Song&publication_year=2008

A comparison of the California bearing ratio (CBR) for recycled glass (RG) with other recycled materials and a basaltic virgin aggregate, all having similar gradations, revealed that the CBR of RG is superior to that of recycled asphalt pavement but less than that of recycled concrete and virgin aggregate. Direct shear tests were then run on the as-received gradation to derive strength parameters for RG prepared at very high and very low relative densities. For “dense” RG, the peak failure envelope was nonlinear with secant friction angles varying from 50° to 61°. For “loose” RG, the peak and critical state failure envelopes were linear with friction angles of 41° and 38°, respectively. Bolton’s postulate that the peak friction angle is approximately equal to the critical friction angle plus 0.8 times the maximum angle of dilation works well for the RG tested in direct shear. A friction angle of 38° at critical state is significant, implying that RG has the potential to be used in even more foundation and ground improvement applications that are so often associated with transportation infrastructure construction. With increased use of recycled materials, civil engineers can help comply with the demand for sustainable development, a major theme in society today.

01114749

English

pp 52-62

2008

Transportation Research Record: Journal of the Transportation Research Board

9780309113298

Print

Figures (8) ; References (23) ; Tables (4)

California bearing ratio; Density; Direct shear tests; Foundations; Glass; Recycled materials; Shear strength; Sustainable development

Failure envelope; Friction angle; Reclaimed glass

Geotechnology; Highways; Materials; I33: Other Materials used in Pavement Layers; I42: Soil Mechanics

TRIS, TRB, ATRI

Jan 29 2008 3:44PM

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