| Title |
An Experimental Study on Properties of Highly Heated Concrete |
| Abstract |
In order to have the basic data for endurance force examination on the concrete structure of fire-damaged buildings, this paper is aimed at performing the test of an andesite crushed concrete received high temperature and analyzing the results.The results of the experiment are as follows,1.In the internal center temperature of the specimens, the measured values have in accordance with the expected values.2.The estimated formula of the compressive strength following the heating temperature has obtained as fallow,Fc=-3.68XT+359.973.Leaving the highly heated concrete for 1-year in the air, the compressive strength of the concrete heated below 200C recovered somewhat, but above 400C took place a definite loss of the compressive strength.4.In the case of the highly-heated concrete, the lower the ratio of fine aggreate, the higher the ratio of residual compressive strength, and there was less influence of W/C ratio. |