Study on Carbonation Performance of Low-carbon Gelation Repair Material
Alkali-activated slag cement(AASC)holds immense potential in carbon emission reduction and practical engineering applications,yet compared to ordinary Portland cement,the understanding of various mechanisms of AASC remains insufficient,and there are deficiencies in evaluating its durability,necessitating the development of more reasonable assessment methods.As a critical factor in concrete durability,the carbonation process of AASC demands further investigation.This paper analyzes and compares the carbonation products of accelerated(1%CO2)and natural(approximately 0.04%CO2)carbonated AASC samples through methods such as XRD,FT-IR,and TG,exploring the carbonation process.The results demonstrate the rationality of conducting rapid testing by increasing the CO2 concentration.
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