超声法早期推定道面混凝土28天抗折强度  

Ultrasonic method conclude the 28-day flexural strength of Pavement concrete in early stage

作　　者：王硕太[1] 马国靖[1] 吴永根[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《混凝土》2001年第8期32-34,共3页Concrete

摘　　要：本文论述了目前机场水泥混凝土道面工程施工根据预留试件 7天的抗折强度进行质量控制存在的问题 ,研究一种早期 ( 1天 )直接测定道面板的声波速度并推定其 2 8天抗折强度 ,从而进行施工质量控制的新方法。这种方法可以直接在道面板上测试 ,更真实反映道面板的质量状况 ,可以方便地任意抽查某部位而不受任何限制 ,既不损坏道面板 ,又可得到较多强度信息 。? This paper expounds the problems med with during the quality control of the engineering construction of pavement concrete in airports nowadays.Those problems generally appear in the quality control of flexmal strength, according to the test specimen within 7 days. Hence,in order to improve the construction quality control, a new direct smvey in early stage (one day) is put forward to conclude the 28 day flexural strength,by directly smveying the acoustic speed of pavement slnb. This new method canbe directly conducted on every part of slab, widlout any lilnits or daolages. It reflects the quality of pavement correctly, giving us more information of flexural strength. Widl it'shelp, we can control the consffuction qualiqr comprehensively and effectively. 〔

关 键 词：超声法 道面混凝土 抗折强度 

分 类 号：U414[交通运输工程—道路与铁道工程] U416.216