During the mass concrete construction in bridge structure, the cement hydration heat is easy to cause surface cracking.
大体积混凝土在桥梁施工过程中，由于水泥水化热容易引起表面裂缝。
In mass concrete construction, the structural cracks by cement hydration heat will influence the durability and mechanical properties of concrete.
在大体积混凝土施工中，由于水泥水化热等多种因素产生的混凝土结构裂缝将影响混凝土的耐久性能和力学性能。
Effect of fly ash on the workability, strength and hydration heat of high belite cement and concrete.
粉煤灰对高贝利特水泥和混凝土的工作性、强度及水化热的影响。
During concrete winter construction, the hydration heat of cement can be made use of as a sort of energy.
在冬季混凝土施工中，水泥的水化热是一项可以利用的能源。
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.
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。
But, concrete placement temperature, surrounding temperature and the heat of hydration of cement, they take a more affection on lining thermal stress.
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。
For massive concrete construction, the low hydration heat cement like the slag Portland cement is often used to facilitate temperature rise control in the concrete.
大体积混凝土施工时常选用水泥水化热较低的矿渣硅酸盐水泥等以利于混凝土温升控制。
The changes of hydration heat and resistivity of pastes during cement hydration were tested, and their hydration and resistivity rates were also compared.
测定了不同水泥的水化放热和电阻率变化，并做了电阻率变化率和放热速率的对比分析。
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.
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。
The addition of fly ash can further reduce the hydration heat of high belite cement.
粉煤灰可进一步降低高贝利特水泥本已较低的水化热。
The early cracking of concrete is usually caused by dry shrinkage, autogenous shrinkage of cement hydration and thermal-strain by hydration heat of cement.
混凝土的早期开裂主要是由于混凝土失水所产生的干燥收缩、水泥水化所产生的混凝土自收缩以及水泥水化热所产生的温度应变所引起。
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.
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。
The results show that AS cement possesses high early strength, low hydration heat and durability, but its shrinkage rate is higher than that of portland cement.
结果表明，碱-矿渣水泥具有早强、高强、低水化热和高耐久性等优良性能，但是干缩较大；
In the mass concrete construction in cement plants, cracks in the concrete may be controlled by reducing the hydration heat and cooling with water to control the internal and external temperature.
在水泥厂工程大体积混凝土施工过程中，可以通过降低水泥水化热和冷却水冷却，控制混凝土内外温差等措施来控制大体积混凝土有害裂纹的产生。
The key of temperature field analysis in massive concrete is the model for hydration heat of cement.
大体积混凝土结构水化热温度场分析的关键是混凝土中水泥水化反应放热模型的确定。
A new formula was proposed to simulate the hydration heat of cement in concrete. The model takes the influence of temperature and concentration of reactant into account.
提出了考虑温度和化学反应物浓度影响的混凝土水泥水化反应放热模型。
The hydration heat of cement paste was tested to investigate the influence of sulfate content in cement paste on the compatibility of cement and naphthalene superplasticizer.
同时测定水泥浆体的水化放热，确定水泥浆体中硫酸盐含量对水泥和萘系减水剂相容性的影响。
The hydration heat of cement paste was tested to investigate the influence of sulfate content in cement paste on the compatibility of cement and naphthalene superplasticizer.
同时测定水泥浆体的水化放热，确定水泥浆体中硫酸盐含量对水泥和萘系减水剂相容性的影响。
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