超细粉煤灰道路高性能混凝土力学性能的试验研究

Experimental Investigation of Mechanical Properties of Highway High Performance Concrete Containing Ultra Fine Ash

由于道路混凝土是在动荷载和重荷载作用条件下工作,其工作环境要比其它一些建筑物更为复杂和严重,对其力学性能各方面的要求就显得尤为重要,同时现代高效率的道路施工对路面混凝土早期及后期强度提出了更高的要求。本文通过在混凝土中掺入超细粉煤灰试验,配制了 C50 强度级别的道路高性能混凝土,同时应用于实际工程,并通过试验室材性试验与现场工程试验相结合,对比研究了道路高性能混凝土各方面的力学性能。

For highway concrete working under the condition of active loading and heavy loading,its working environment is more complicated and serious than other building,so the demands of mechanical properties of concrete are more important,on the other hand,higher demand of early age and late age strength is required for satisfying modern high efficiency road construction.According to the data analysis in a series of experimental studies,the paper proves that Ultra Fine Fly ash(UFA)being added into concrete may be produce C50 highway high performance concrete,and it is used in project practice;meanwhile,according to the combination of laboratory test and field test, the paper research some kinds of mechanical properties of highway high performance concrete.