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unusual facts about ettringite


Ettringite

An ettringite sample extracted from Scawt Hill was analysed by C. E. Tilley, the crystal was 1.1 x 0.8 0.5 mm, with specific gravity of 1.772±0.002, the density was determined by immersing the sample in a solution of carbon tetrachloride mixed with bromoform.


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Kuala Lumpur Middle Ring Road 2

However, findings from Halcrow Consultants Ltd. suggested the design did not comply with the requirement of BS5400, the improper anchoring of the column rebar to the crossbeams and the formation of ettringite (Delayed Ettringite Formation) were responsible for the cracks and were finally accepted by the ministry (Source: New Straits Times, 1 October 2004).


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