Collivignarelli C, Sorlini S
Department of Civil Engineering, University of Bresciavia, Brescia, Italy.
Waste Manag Res. 2001 Dec;19(6):539-44. doi: 10.1177/0734242X0101900610.
This study concerns the reuse of two inorganic wastes, foundry residues and fly ashes from municipal solid waste incineration, as "recycled aggregate" in concrete production. This kind of reuse was optimised by waste treatment with the following steps: waste washing with water; waste stabilisation-solidification treatment with inorganic reagents; final grinding of the stabilised waste after curing for about 10-20 days. Both the treated wastes were reused in concrete production with different mix-designs. Concrete specimens were characterised by means of conventional physical-mechanical tests (compression, elasticity modulus, shrinkage) and different leaching tests. Experimental results showed that a good structural and environmental quality of "recycled concrete" is due both to a correct waste treatment and to a correct mix-design for concrete mixture.
本研究关注两种无机废弃物（铸造废渣和城市固体垃圾焚烧产生的飞灰）作为混凝土生产中的“再生骨料”的再利用。通过以下步骤进行废弃物处理来优化这种再利用：用水冲洗废弃物；用无机试剂进行废弃物稳定化-固化处理；在养护约10 - 20天后对稳定化后的废弃物进行最终研磨。两种经过处理的废弃物都用于不同配合比设计的混凝土生产中。通过常规物理力学试验（抗压、弹性模量、收缩）和不同的浸出试验对混凝土试件进行表征。实验结果表明，“再生混凝土”良好的结构和环境质量既得益于正确的废弃物处理，也得益于混凝土混合料正确的配合比设计。
