학술논문
Macrokinetics of the deterioration of cement-based grouting material for predicting its service life under acid rain attack
Document Type
article
Author
Source
Heritage Science, Vol 11, Iss 1, Pp 1-11 (2023)
Subject
Language
English
ISSN
2050-7445
Abstract
Abstract Cement-based grouting material is widely used to reinforce the unsafe rock and control seepage of rock-carved relics although it is considered inappropriate in protection of ancient sites. As this approach is irreversible, a longer service life is desirable for the grouting material and methods to predict the service life are needed. Here we propose a universal formula based on the dissolved amount of calcium ion to predict the deterioration rate of cement-based grout caused by acid deposition in the laboratory. The experimental results showed that the dissolved amount of calcium ion had a linear relationship with lnT and the pH value, with better accuracy when the pH value was greater than 3.0. This work maybe could provide a facile and quantitative method to help us predict the service life of cement-based grouting material under acid rain attack outdoors.