On Carbonize And Freeze-Thaw Double Factors Influence On Durability Of Concrete

At present in our country and even the world of concrete durability research is just unfolding, and the great achievements enrich people on durability of understanding. For concrete durability deterioration, the degradation mechanism, theoretical model, detection method and the improvement of prevention repair all remain in the single factor effect, but in engineering practice because of lack of durability of concrete to incur damage, is rarely due to isolated single causes.This article is intended to simulate the concrete action of frozen-thawed and carbonization dual role in the deterioration model, and the concrete carbonization will again experience the freeze-thaw cycle test, and experience a certain number of freeze-thaw cycle test pieces for carbonation, according to experiment data and relevant theories postulate that reasonable conclusion.By experiment, after the lower strength grade of concrete deterioration, low water-cement ratio on the weakening effect of the frost resistance of concrete. The carbonized concrete has effect the frost resistance of concrete, longer durability worse. The beginning of concrete to experience freeze-thaw cycles has effect the carbonation ability. The double deterioration of durability problems could quote the deteriorated concrete durability research result. Put forward to accord with some concrete deterioration equation, and get the prediction model, which has certain practical significance.