Microstructural investigation of severe distress in a crushed concrete base Academic Article

abstract

• A large parking lot was constructed on a crushed concrete base overlying a lime-stabilized subgrade. Despite adequate thickness of the subgrade and base, and having followed the construction codes and engineering specifications, within a very short period of time the base developed severe distress in the form of massive heaving and rutting. Microstructural investigation revealed intense sulfate attack, resulting from contamination of the crushed concrete stockpile with acalcium sulfate industrial waste. Gypsum, ettringite, and thaumasite were identified as the principal deterioration products. 1998 Elsevier Science Ltd.

authors

• Little, Dallas

published proceedings

• CEMENT AND CONCRETE RESEARCH

author list (cited authors)

• Sarkar, S. L., & Little, D. N.

citation count

• 8

complete list of authors

• Sarkar, SL||Little, DN

publication date

• March 1998

publisher

• Elsevier  Publisher

published in

• Cement and Concrete Research  Journal

keywords

• 33 Built Environment And Design
• 3302 Building
• 40 Engineering
• 4005 Civil Engineering

Digital Object Identifier (DOI)

• 10.1016/S0008-8846(97)00263-9

start page

• 401

end page

• 410

volume

• 28

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fs0008-8846%2897%2900263-9