插座保护盖作者:***
来源:《城市建设理论研究》2013年第01期微机消谐装置umg92
摘要:大体积混凝土温度控制的关键在于降低混凝土水化热以及减小混凝土内、外温差,避免产生过大的温度应力,使得混凝土在前期强度较低的情况下不至于受到过大的拉应力而产生裂缝。控制混凝土内、外温差的主要措施有:降低混凝土入仓温度、降低混凝土水化热、混凝土外部保温以及混凝土内部降温。 温室保温被 关键词:建筑工程 ; 大体积;混凝土 ; 温度控制;措施
Abstract: the large volume concrete temperature control is the key to reduce the hydration heat of concrete and reduce the concrete, temperature difference, avoid excessive temperature stress, so the concrete early strength in lower case not subjected to excessive tensile stress crack. Control of concrete, temperature difference of the main measures are: reduction of concrete placing temperature, reduce the hydration heat of conc230ore-095
雨水弃流井
表贴式永磁同步电机rete, concrete exterior insulation and internal concrete temperature.
Key words: Construction Engineering; mass concrete; temperature control; measures;