摘要
自密实混凝土是目前国内外混凝土界研究的热点之一,由于自密实混凝土具有很高的流动性和适宜的粘度,无需振捣而可穿过钢筋自行充满整个模板空间。使用自密实混凝土可以节约劳动力、减少噪音污染。选用适宜的原材料和配合比可配制出C30～C50,甚至强度超过80MPa的自密实混凝土。本文研究了自密实混凝土流动性的评价方法、物理力学性能并在润扬长江大桥进行了成功应用。
Self-compacting concrete is now one of the research highlights across the world. Thanks to its high fluidity and appropriate viscosity,the self-compacting concrete can pass through rebars and fill the formwork completely with vibro-compaction. Application of self-compacting concrete can cut down the labour and reduce the noise level. Using appropriate raw materials and adequate mix ratios, self-compacting concrete with strength from C30 to C50, and even more than C80 can be produced. Research was made on the methods for evaluating the fluidity of self-compacting concrete and the physical and mechanical properties of the self-compacting concrete.The successful application of the self-compacting concrete to the bridge crossing the Changjiang River at Runyang is described in detail.
出处
《中国港湾建设》
北大核心
2004年第1期1-5,共5页
China Harbour Engineering
