ABSTRACT
In this paper, chemical analysis and microanalysis methods were employed for experimental research on mortar specimens with different water-to-binder ratios and different ages. The test results show that under the CO2 erosion conditions, the cumulative dissolution ratio of CaO of the specimens continues to increase, and the erosion effect takes place from the outside to the inside, which only affects the surface area of the specimens in a short time, and reducing the water-to-binder ratio improves the resistance of concrete. The ability to decompose erosion is found to be advantageous.
