沈阳新世界会展中心IV区底板混凝土施工及裂缝控制  

Concrete Construction and Crack Control of Mass Concrete of Shenyang New Wodd Conference Center IV section

作　　者：张景丽[1] 徐振昆 王忠义 宋东升 

机构地区：[1]沈阳新世界混凝土有限公司,辽宁沈阳110004 [2]沈阳兴玖玖商品混凝土有限公司,辽宁沈阳110148 [3]沈阳泰丰特种混凝土有限公司,辽宁沈阳110004

出　　处：《中国包装科技博览（混凝土技术）》2011年第4期56-60,共5页China Science and Technology Review

摘　　要：大体积混凝土的施工技术要求比较高，特别在施工中要防止混凝土因水泥水化热引起的温度差产生温度应力裂缝。因此需要从材料选择上、配合比设计上与技术措施等有关环节做好充分的准备工作，才能保证基础底板大体积混凝土顺利施工。本文以具有代表性的沈阳新世界会展中心IV区底板工程为例，分析了大体积混凝土结构产生裂缝的原因并总结了该项目在混凝土裂缝的控制技术上所采取的措施。The demand of constructing technology in large volume of concrete is very high. Especially, we should prevent the temperature stress crack which is caused by temperature difference that immerged from cement... Therefore, the preparation should be made in material selection, mixture ratio designing and technological measures and so on, which ensures that the concrete of large volume on the base motherboard can be carried out smoothly. The thesis takes the representative IV base engineering in Shenyang New World Exhibition Centre as the example, and analyzes reasons of the crack on the large volume concrete construction. Meanwhile, the thesis concludes the technological controlling measures of the concrete crack.

关 键 词：大体积混凝土 防裂技术 合理施工方案 

分 类 号：TU755[建筑科学—建筑技术科学]