施工时在砼中加入膨胀型外加剂，增强砼模板刚度与砼养护。
In construction we add expansion admixtures to the concrete, strengthen concrete formworks and maintenance of the concrete.
介绍了寒冷地区C50砼地面的原材料选择，配合比选定，砼供应及运输、浇捣、养护及质量控制。
This article describes the selection of constituent materials and the choice of mix design for C50 floor, as well as its supply, transportation, vibration, consolidation, curing and quality control.
修建水泥砼路面具有施工方便，后期养护成本低，经济适用等优点，是豫西山区农村公路的最佳选择。
The construction of concrete (cement concrete pavement) road has virtues such as convenience, low maintaining cost and economic, so it is the best choice for the Yuxi countryside road.
在高交通流量下砼的修补是公路养护部门的一大难题。
Concrete repairs under heavy traffic flow remains a difficult problem in highway maintenance.
本文从养护与维修角度，分析了砼路面接缝破坏及砼板本身破坏的主要形式及成因机理。
From the aspect of conservation and maintaining, this paper analyses the main form and causation of joint and concrete board damage in concrete road.
路面预防性养护是公路养护的一种新的理念，道路沥青砼面层早期病害是公路中常见的一种现象。
The preventive maintenance of highway pavement is a new concept in highway maintenance; the early hazard in highway asphalt pavement is a common phenomenon in highways.
路面预防性养护是公路养护的一种新的理念，道路沥青砼面层早期病害是公路中常见的一种现象。
The preventive maintenance of highway pavement is a new concept in highway maintenance; the early hazard in highway asphalt pavement is a common phenomenon in highways.
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