杨 斌
工业和生活废弃物的利用与混凝土的使用安全
杨 斌
摘 要:随着天然砂石自然资源的日渐枯竭,工业废弃物、建筑垃圾和污泥等加工后作为人造粗、细集料用于混凝土,掺入水泥中作混合材,以及作为混凝土的掺合料和矿物外加剂,促进了资源再生利用和节能减排工作。加强废弃物的成分研究,规定其有害物质限量,防止利用不当,造成对环境的二次污染,影响混凝土的耐久性与使用寿命,应是当前研究的重点。
Abstract: Because of the exhaustion of the natural resources as natural sand, industrial waste, construction waste and sewage sludge after processing can be manual coarse or fine aggregates used in concrete, admixtures adding into cement and used as concrete admixtures or mineral additives, which improve the resource regeneration and energy saving. Nowadays, the research key points are aiming at studying the wastes composition, regulating the limit of harmful substance, preventing the adverse using to cause secondary pollution in environment to affect the durability and working lifetime of concrete.
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