混凝土无损检测十年和十七年龄期回归方程的比较与合并

本文通过对十年和十七年龄期混凝土各种检测方法回归方程的比较,强度等级高的混凝土试件碳化深度浅,回弹值和强度具有很好的相关性。强度等级低的混凝土试件,回弹值和强度相关性较差,而碳化对强度的相关性显著。混凝土试件的回弹值和碳化深度值对强度的相关性具有互补性,而混凝土试件的超声声速值与碳化深度值则没有这样的互补性质。通过分析比较,在混凝土强度的现场回弹法检测中,龄期超过十七年的混凝土也可以采用十七年龄期的回归方程。

The Comparision and Combination of Returning Process of 10 and 17 years-age Period Concrete Without Less Measwrement

This article through to 10 year and 17 age period concrete each kind of examination method regression equation comparison,the intensity rank high concrete test sample carbonization depth is shallow,the snapping back value and the intensity have the very good relevance.The intensity rank low concrete test sample,the snapping back value and the intensity relevance are bad,but carbonizes to the intensity relevance is remarkable.The concrete test sample snapping back value and the carbonized depth value has the complementarity to the intensity relevance,but the concrete test sample supersonic sonic speed value and the carbonized depth value does not have such supplementary nature.Through the analysis comparison,in the concrete intensity scene snapping back law examination,the stadium surpasses 17 years concrete also to be possible to use 17 age periods the regression equations.