混凝土空心板梁回弹强度与试块强度的试验研究

通过对先张法混凝土空心板梁的回弹强度,同养试块、标养试块回弹强度及抗压强度统计数据的分析研究,利用对数回归拟合方法得出抗压强度、回弹强度随龄期的变化方程,给出各龄期回弹强度、抗压强度的换算表,有助于加强对空心板梁实际强度、回弹强度、试块抗压强度之间的认识,为混凝土构件强度检测提供参考。

Experimental Study on Beam Rebound Strength of Concrete Hollow Plate and Sample Strength

By analysing the rebound strength of pretensioned concrete hollow plate beam,with a test block,the standard curing test statistical analysis of the data block rebound strength and compressive strength,the logarithm regression method is proposed for compressive strength,rebound strength curve with the development of age,the age rebound strength,compressive strength conversion table. The study contributes to the understanding of strengthening of hollow slab beam actual strength,rebound strength,compression strength. It also provides reference for measuring the strength of concrete member.