降低放射性废树脂水泥固化中水化热可以降低温度应力、减少裂纹。
Reduction of the hydration heat during cementation of radioactive resins can reduce thermal stresses and prevent thermal cracks.
对于水工隧洞衬砌混凝土,在施工期由于水泥水化热作用,温度应力影响显著,是产生混凝土结构裂缝的重要原因之一。
As for hydraulic tunnel lining concrete, thermal stress is one of important factors that cause concrete cracks, due to the heat of hydration of cement in the construction period.
混凝土的浇筑温度、环境温度以及水泥水化热对温度应力的影响十分显著。
But, concrete placement temperature, surrounding temperature and the heat of hydration of cement, they take a more affection on lining thermal stress.
大体积混凝土的水化热不容易及时散发,内部温升将会很高,从而产生很大的温度应力,导致出现温度裂缝。
The hydration heat of massive concrete does not emanate easily, so the internal temperature will be very high which will generate high thermal stress, then the temperature crack will appear.
对于大体积混凝土建筑,水泥水化热引起混凝土浇筑内部温度和温度应力剧烈变化,是导致混凝土发生裂缝的主要原因。
For mass concrete construction, cement caused by hydration heat of concrete pouring temperature and internal stress of dramatic changes in temperature, is the main reason for cracks in concrete occur.
水化损伤劣化了岩体的力学性能和承载能力,直接减小了岩体的有效承载面积,定义了损伤变量后,损伤应力可采用应变等效的方法进行计算。
Erosion damage decreases rock load area, after defining damage variable, the damage stress in rock can be calculated by the method bring forward by Lemaitre conveniently.
考虑一般情况下的水化热降温曲线,求得构件在水化热反应过程中温度应力的等效温差。
According to the temperature dropping curves of hydration heat, authors also consider the equivalent temperature variation of thermal stress due to the hydration reaction of the cement.
自养护剂可以提高混凝土胶凝材料的水化程度,降低混凝土内由于水化反应导致的毛细孔水面下降所产生的压应力,减少了微裂缝的产生。
Autogenous curing agent can improve the hydration degree of concrete, reduce the compressive stress which dropping of water in capillary of concrete caused and sensitivity to cracking.
城市环境下粘性土环境效应通常可归纳为应力场效应、地下水水化学效应、热效应、电效应等方面。
Environmental effect of city underlying cohesive soil can be summed up stress field effect, groundwater chemistry effect, thermal effect, electric effect, etc.
通过水化膨胀试验和渗透试验研究了GCL在竖向应力作用下的膨胀特性和渗透性能,并分析了正应力和加压水化顺序的影响。
Swelling characteristics and hydraulic properties of GCLs under vertical stress were studied through hydration swelling tests and permeation tests.
通过水化膨胀试验和渗透试验研究了GCL在竖向应力作用下的膨胀特性和渗透性能,并分析了正应力和加压水化顺序的影响。
Swelling characteristics and hydraulic properties of GCLs under vertical stress were studied through hydration swelling tests and permeation tests.
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