低胶材钢筋混凝土碳化对钢筋锈蚀影响研究进展

Research Progress on the Effect of Carbonization of Low-glue Reinforced Concrete on Steel Corrosion

在国家积极推进碳达峰、碳中和目标背景下,水泥混凝土行业减少碳排放势在必行。文中重点综述了低水泥用量高掺合料对混凝土碳化行为的影响机理研究现状,涉及碳化行为对混凝土内部钢筋锈蚀的影响机理、混凝土内部钢筋锈蚀的评价方法及优缺点,并指明了进一步的研究方向,这对于改善高掺合料钢筋混凝土耐久性和降低建筑行业碳排放具有重要意义。

In the context of actively promoting carbon peaking and carbon neutrality targets in the country,it is imperative for the cement and concrete industry to reduce carbon emissions.This article focuses on summarizing the research status of the influence mechanism of low cement content and high mineral admixture on the carbonation behaviorof concrete;the impact and mechanism of carbonation on the corrosion of steel bars in concrete,as well as the evaluation methods and pros and cons of corrosion of steel bars in concrete;and further points out the direction for future research.This is of great significance for improving the durability of high mineral admixture concrete and reducing carbon emissions in the construction industry.