废弃混凝土复杂多样性的分析与再生利用研究

A Study of the Variety and Recycling of Discarded Concrete

废弃混凝土性能的复杂多样性分析表明,骨料周围水泥砂浆被剥离的程度和厚度各不相同,在强化处理后形成的骨料性能有较大差异.对强化处理的再生骨料需要进行物理和力学性能试验,并对再生混凝土进行对比试验后,可根据结果确定再生混凝土的生产使用,从而提高废弃混凝土的再生资源化利用率.

The complexity and diversity of waste concrete were analyzed in the present paper. Because the degree and thickness of peeling of cement mortar around aggregates in waste concrete are not identical, the characteristics of recycled aggregates after strengthening treatment are obviously different. The mechanical and constructional properties of recycled aggregate concrete must be comparatively analyzed by experiments before recycling can be decided according to the experiment results with a view to enhancing the utilization rate of waste concrete.