Affiliation:
1. Ningbo University of Finance & Economics
2. Zhejiang University
Abstract
Abstract
Cement-based grouting material is widely used to reinforce the unsafe stone inscription 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 grouting material 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 could provide a facile and quantitative method to help us predict the service life of cement-based grouting material under acid rain attack outdoors.
Publisher
Research Square Platform LLC
Reference20 articles.
1. Research on metakaolin and micro fine cement composite grouting material in Longmen Grottoes;Yang SJ;Stud Cave Temples,2013
2. Anchoring the cliff and excavating diversion canal—The reinforcement and water seepage treatment project in Maiji Grottos;Dong GQ;China Cult Herit,2016
3. Review the conservation works in Dazu Stone Carving in the past 40 years;Deng ZJ;Sichuan Cult Relics,1994
4. Evaluation of Cement-Based Grout for Reinforcing Unsafe Rocks of Stone Carvings at Hangzhou Klippe in China;Fang S;J Mater Civ Eng,2019
5. Effects of simulated acid rain on soil respiration and its components in a subtropical mixed conifer and broadleaf forest in southern China;Liang G;Environ Sci Processes Impacts,2016