Title

Mechanical and physical characterization of lightweight shotcrete used for repair

Document Type

Conference Proceeding

Date of Original Version

10-31-2006

Abstract

In the present study, a low-density structural shotcrete was developed by using cenospheres, a waste material, as the fine aggregate. Cenospheres are ceramic, hollow micro-balloons produced during coal burning processes and have diameters ranging from 10-300 micrometers. The compressive, indirect tensile, flexural strengths and fracture toughness of the cenosphere-modified shotcrete were determined in accordance with ASTM standards. Water absorption, freezing and thawing, deicing salt resistance, and chloride permeability were tested in accordance with ASTM standards. Lastly, the cenosphere-modified shotcrete was applied to existing concrete in order to evaluate the capacity of shotcrete as an adequate method of rehabilitation.

Publication Title

Proceedings of the 2006 SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2006

Volume

1

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