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Performance of Metakaolin Concrete at Elevated Temperatures by Chi-Sun Poon; Salman Azhar; Mike Anson; Yuk-Lung Wong is a Engineering article available to read on EtoBox.

What is Performance of Metakaolin Concrete at Elevated Temperatures about?

An experimental investigation was conducted to evaluate the performance of metakaolin (MK) concrete at elevated temperatures up to 800 °C. Eight normal and high strength concrete (HSC) mixes incorporating 0%, 5%, 10% and 20% MK were prepared. The residual compressive strength, chloride-ion penetration, porosity and average pore sizes were measured and compared with silica fume (SF), fly ash (FA) and pure ordinary Portland cement (OPC) concretes. It was found that after an increase in compressive strength at 200 °C, the MK concrete suffered a more severe loss of compressive strength and permeability-related durability than the corresponding SF, FA and OPC concretes at higher temperatures. Explosive spalling was observed in both normal and high strength MK concretes and the frequency increased with higher MK contents.

Who reads Performance of Metakaolin Concrete at Elevated Temperatures?

Author

Chi-Sun Poon; Salman Azhar; Mike Anson; Yuk-Lung Wong

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0958-9465)

Published

2003

Language

EN

Field

Engineering (Physical Sciences)