Thaumasite - Wikipedia
Thaumasite is a calcium silicate mineral, containing Si atoms in unusual octahedral configuration, with chemical formula Ca 3 Si(OH) 6 (C O 3)(SO 4)·12H 2 O, also sometimes more simply …
Thaumasite sulfate attack on concrete: Mechanisms, influential …
2014年12月30日 · Thaumasite (C 3 S S ¯ C ¯ H 15) is a rare naturally occurring mineral comprising complex hexagonal crystal structure of sulfate salt, usually found in metamorphic …
Thaumasite sulfate attack on concrete: Mechanisms, influential factors ...
2014年12月30日 · Thaumasite sulfate attack (TSA) is a special form of sulfate attack typically occurring due to the availability of carbonates/bicarbonates in the cementitious matrix with …
The thaumasite mineral which forms gradually replaces the cement paste matrix of the concrete, causing the concrete surface to soften and eventually to disintegrate. TSA
Internal Sulphate Attack in Masonry Mortars with Thaumasite …
2022年8月18日 · It seems that thaumasite is formed through an ettringite transformation where aluminium atoms are replaced with silicon atoms by means of a solid solution. The study …
The occurrence of thaumasite in modern construction – a review
2002年6月1日 · The thaumasite form of sulfate attack or TSA is by far the most damaging mechanism involving the occurrence of thaumasite in modern construction. It has been …
Review of Thaumasite Sulfate Attack on Cement Mortar and …
Thaumasite sulfate attack (TSA) is one durability consideration. This paper reviews the features of TSA, factors affecting TSA, thaumasite formation mechanisms, and prevention measures. …
Field occurrence of thaumasite sulfate attack: prevention
2020年6月22日 · Among these critical processes, thaumasite sulfate attack (TSA), as a specific type of sulfate attack, requires particular considerations as it converts calcium silicate hydrate …
The occurrence of thaumasite in newly built concrete …
2021年3月17日 · The formation of thaumasite, a distinct form of sulfate attack that occurs usually in cold wet climate conditions, is by far the most damaging deterioration mechanism in the …
The microscopical characterisation of thaumasite - ResearchGate
2003年12月1日 · Thaumasite sulfate attack (TSA) is one durability consideration. This paper reviews the features of TSA, factors affecting TSA, thaumasite formation mechanisms, and …