Affiliation:
1. Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, China
2. Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China
Abstract
This study is aimed at the problem of limestone deterioration and damage caused by the combination of acid rain and the dry-wet cycle in Guilin. Samples of limestone were taken to study the influence of acidic dry-wet cycles on limestone deterioration and damage. This was accomplished by performing nuclear magnetic resonance (NMR) measurements and inductively coupled plasma atomic emission spectrometer measurements on the limestone samples. The study found that with an increase in the number of cycles, the
curve of the rock continuously shifts to the right, but the range of movement still decreases with pH increasing values. The
spectrum area, rock porosity, porosity deterioration, mass loss rate, and water absorption rate all increase with an increase in the number of cycles, but the growth rate continues to decrease, and the increase is negatively correlated with pH. After the dry-wet cycles, the mass concentration of each element in the beaker is Ca, Mg, and Fe in order from high to low, and the mass concentration of each main element in the reaction solution increases with the increase in the number of acidic dry-wet cycles.
Funder
Natural Science Foundation of Guangxi Province
Subject
General Earth and Planetary Sciences
Cited by
3 articles.
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