In the saline soil environment, the salts corrode the ordinary cement concrete seriously, and concrete structures deteriorate gradually until it fails, which impedes the practical application of ordinary Portland cement concrete in this area. Aiming at the durability problems of concrete in a harsh environment, this paper selects the coefficient of compressive strength, coefficient of flexural strength, relative dynamic elastic modulus, and relative mass to jointly evaluate the resistance of nano-CaCO3 modified concrete to sulfate corrosion. More importantly, the Wiener process for modeling the degradation process of concrete specimens was used to obtain the remaining life’s reliability function. The results indicated that adding 1% nano-CaCO3 (Nano Calcium Carbonate) can enhance the resistance of concrete to sulfate corrosion, and the service life of concrete will increase significantly. The Random Wiener process can effectively predict the durability deterioration process of concrete specimens. By integrating the deterioration process’s life data, this method’s reliability function may directly reflect the concrete’s life.
Life Prediction Model of Nano-CaCO3 Modified Concrete in Sulfate Environment
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 25 , 8 ; 3054-3063
01.08.2021
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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