再生混凝土长期使用性能研究进展

通过查阅和研究国内外文献，对比分析了再生混凝土与普通混凝土在长期性能方面的差异，主要包括再生混凝土的长期强度、收缩与徐变、耐久性与抗火性等。分析结果表明，再生混凝土的长期性能与普通混凝土存在一定差异，但可以通过选择再生集料的取代率、优化再生混凝土配合比、掺加纤维等技术手段或限制再生混凝土使用环境来提高再生混凝土的长期使用性能。本文工作将有助于全面了解再生混凝土的各种长期性能，为进一步研究打下基础。

A Review on Long-Term Properties of Recycled Aggregate Concrete

Based on the review and investigation of large quantity related home and abroad literatures, this paper mainly engages in exploring the difference of long-term properties -between recycled aggregate concrete and conventional concrete. The long-term strength, shrinkage, creep, durability, and fire-resistance behavior of recycled aggregate concrete are focused on. The results show that there exist some differences between the two types of concrete, however, the long-term properties of recycled aggregate concrete can be improved and guaranteed by selecting the recycled aggregate replacement ratio, optimizing the mix design, mixing fiber or limiting the application environment. This paper can be helpful for the comprehensive understanding and further research for recycled aggregate concrete.