Thaumasite expert group report: review after three years experience

Publication Year

2002

Document Status

Current

Abstract

Following the identification of the thaumasite form of sulfate attack (TSA) on the concrete foundations to a number of bridges on the M5 motorway in 1998, the then Minister for Construction established the Thaumasite Expert Group (TEG). It was asked to report on the nature and threat of this phenomenon and to provide interim guidance on its avoidance. At the Minister’s request, a One-Year Review of the Report’s factual statements and guidance in the light of new developments followed up the Report in spring 2000. A second review of the Thaumasite Expert Group Report has now been undertaken, and has been carried out after some three years experience of the advice in the Report. The Review has been informed by contributions received from members of the Group and responses from industry.

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