Creep of concrete as a function of its cement paste content

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Abstract
Summary It is shown that for specimens subjected to a sustained load at a constant stress/strength ratio there is a simple relation between creep and the amount of cement paste in the concrete. The cement content affects also the rate of creep, leaner mixes achieving a given proportion of their long-term creep earlier than rich mixes. This behaviour is shown to be related to the rate of increase in strength ofthe specimen while under load, and is verified for ordinary and rapid-hardening Portland cements. The prediction of creep from the relations established is discussed.

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