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Method and a device for measuring concrete maturity

  • US 4,480,929 A
  • Filed: 08/24/1982
  • Issued: 11/06/1984
  • Est. Priority Date: 08/28/1981
  • Status: Expired due to Fees
First Claim
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1. A method of determining the maturity of concrete, in which a liquid is heated by means of the heat generated by the setting of the concrete and the evaporated amount of liquid is taken as a measure of the concrete maturity, characterized in that a liquid with an activation energy for vapour pressure of approximately the same value as the activation energy for concrete hardening is contained in an open capillary tube fitted in a closed container to be placed in the concrete, said container containing an absorbing agent which absorbs the vapours developed by the evaporation of the liquid.

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