论文部分内容阅读
采用人造轻骨料、天然轻骨料或工业废料轻骨料配制的轻骨料混凝土,具有自重轻、保温防火性能好、施工适应性强等特点,无论是现浇或预制都可达到与普通混凝土同等强度。大量的工程实践表明,自重较大的结构,当地基较差,要求减轻结构物自重,减小基础或柱子断面时,以及要求较好的耐火、保温和抗震性能时,优先采用轻骨料混凝土结构,将具有明显的技术经济效益。它不仅能节省基础造价,减少模板和支撑费用,降低构件运输与吊装费用,而且也能提高隔热保温效果和防火等级及抗震
Lightweight aggregate concrete formulated with man-made lightweight aggregates, natural lightweight aggregates or industrial waste light weight aggregates has characteristics of light weight, good thermal insulation and fire resistance, and strong construction adaptability, and can be achieved in both cast-in-place and prefabrication. The same strength as concrete. A large number of engineering practices have shown that when lighter aggregate concrete is used preferentially for structures with larger deadweight, poor local foundations, required to reduce the weight of the structure, reduce the foundation or pillar section, and require better fire resistance, thermal insulation and seismic performance The structure will have obvious technical and economic benefits. It can not only save the basic cost, reduce the cost of formwork and support, reduce the cost of transportation and lifting of components, but also improve the heat insulation effect and fire rating and earthquake resistance.