再生骨料混凝土抗冻性研究进展

Review on frost resistance property of recycled aggregate concrete

随着建筑业的发展,大量建筑垃圾的产生和处理催生了再生混凝土的研究应用和发展。在我国北方广大地区以及华中南部分地区的建筑物都不同程度的遭受到冻融循环作用的影响。开展再生混凝土抗冻性能研究具有重要意义。鉴于此,大量查阅了近年来关于再生混凝土抗冻耐久性研究的相关文献,系统总结并分析了再生混凝土冻融破坏机理、抗冻耐久性影响因素及主要措施。在此基础之上,结合当下的研究现状提出了未来的研究方向,旨在丰富和发展再生混凝土的理论研究,推动再生混凝土的工程应用。

With the development of the construction industry,a large amount of construction rubbish generation and treatment has given birth to the research and development of recycled concrete.In many parts of northern China and parts of central and southern China,buildings are affected to varying degrees by the freeze-thaw cycle.Promoting the research on the frost resistance of recycled concrete is of great significance.Therefore,lots of related literatures about the research on the freeze-thaw durability of recycled concrete are reviewed.The mechanism of freeze-thaw failure of recycled concrete,the influencing factors of freeze-thaw durability and the main measures are systematically analyzed.On this basis,this paper puts forward the future research direction according to the current research status,aiming to enrich and develop the theoretical research of recycled concrete and promoting the engineering application of recycled concrete.