Neutralization of Artificial Sand Concrete Caused by Acid Rain

Abstract

With the effect of carbonation and coupled action of acid rain and carbonation, the carbonation depth of concrete with river sand and artificial sand was studied, respectively. The results show that the carbonation depth of concrete composed artificial sand is less than that with river sand in both cases, and the resisting carbonation ability of the former is better. Compared with accelerated carbonation, the neutralization of concrete is accelerated under the combined action of [H+]and [SO4 2-] in acid rain.