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What is the effect of temperature on concrete?

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Question ajoutée par Mossaad Eabid , service manager , Amreyah cement company
Date de publication: 2016/03/16
ijaz ijaz ullah
par ijaz ijaz ullah , Site Engineer , KSS Engineering Private Limited

As part of an investigation on the effect of temperature on the crushing strength of concrete, tests have been carried out using 2 in. diameter by 4 in. long specimens made with ordinary Portland cement, river sand and gravel aggregate, having various mix proportions and water/cement ratios.

The crushing strength of concrete at temperatures up to 600°C was independent of the water/cement ratio used but was influenced by the aggregate/cement ratio. Concrete specimens loaded to produce normal design compressive stress during the period of heating showed less reduction in strength than specimens without imposed load. There was afurther loss in the compressive strength of the specimens when cooled after heating to a given temperature.

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