MODELING FORMWORK PRESSURE OF SCC

摘要：

The formwork pressure of SCC is greater than normal concrete due to its greater fluidity.Laboratory and field testing confirms that formwork pressures take longer to subside when SCC is uscd. A model for formwork pressure was developed to allow engineers to predict pressures and relate pressures to pouring rate. The model utilizes a simple column test to characterize an SCC material decay signature. The model can then account for field variation in placement rate, and predict the pressure at any point of interest. The model has been validated by laboratory tests and about 40 field projects involving tall wall structures.

关键词： self consolidating concrete formwork pressure fresh properties tall wall construction field testing safety

作者: David A.Lange Yi-Shi Liu Jacob Henschen

作者单位: Civil and Environmental Engineering,University of Illinois Civil and Environmental Engineering, University of Illinois

会议类型: 国际会议

会议名称: 第二届自密实混凝土设计、性能及应用技术国际研讨会(2nd International Symposium on Design,Performance and Use of Self-Consolidating Concrete SCC2009-China)

会议地点: 长沙

会议语种:英文

页码: 56-63

在线出版日期: 2009-06-05（万方平台首次上网日期，不代表论文的发表时间）