自密实混凝土及其在印度尼西亚的应用

Self compacting concrete and its application in Indonesia

自密实混凝土被称为近几十年中混凝土建筑技术最具革命性的发展。为了在中国进一步推广和更好地使用自密实混凝土,介绍了采用自密实混凝土改进混凝土结构性能(即耐久性与可靠性)的趋势以及自密实混凝土在印度尼西亚高层建筑和大跨桥梁中的应用情况。由于其高流动性,自密实混凝土适合于浇筑施工困难地方和复杂截面形式,尤其是钢筋布置很密的地方。采用自密实混凝土还能减少灌注大尺寸混凝土构件所需要的时间,例如建筑物的底部或基础的灌注。自密实混凝土也会减小施工现场由于混凝土振捣产生的噪音。随着掺合剂技术在使用新一代聚羧化物基超增塑剂方面的发展,现在自密实混凝土可以大规模商业化生产,并成功地在印度尼西亚和世界各地应用。

Self consolidating concrete（SCC） is called the most revolutionary development in concrete construction technology in recent several decades.In order to widen its application range and to use it more efficiently in China,presents the trend of using SCC to improve the performance of concrete structures,i.e.its durability and reliability,because its highly flowing nature makes it suitable for placing concrete in difficult conditions and sections,especially with crowded steel reinforcement.Utilization of SCC can also reduce the time required for placing large sections in concrete structures,e.g.in the basement or substructure＇s concrete pouring.SCC may also minimize the noises on the construction site that are induced by concrete vibrators.Following the development of admixture＇s technology in using a new generation of poly-carboxylate polymer based super-plasticizer,SCC can now be produced on a large commercial scale and be applied successfully in Indonesia and all over the world.