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。
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。
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。
Reduction of the hydration heat during cementation of radioactive resins can reduce thermal stresses and prevent thermal cracks.
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。
The types of those cracks are summarized as three kinds: plastic shrinkage cracking, dry shrinkage cracking and hydration heat cracking.
将引起混凝土裂缝的类型归纳为塑性收缩开裂 ，干燥收缩开裂 ，水化热开裂三种 ，并对其表象及成因进行了阐述。
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。
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。
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。
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；
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。
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 rate of hydration heat evolution and hydration heat of the PC-CS-A system were tested, and the influence of the composition on the heat of the hydration were analyzed.
测试了PC-CS-A 复合体系水泥的水化放热量及水化放热速率，分析了组成对水化放热行为的影响。
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。
The problem of cracks, which is caused in structures by deforming effect, such as hydration heat, shrinkage, temperature difference of atmosphere, is very important and complicated.
由于变形作用(水化热、收缩、气温差)引起工程结构的裂缝是很复杂并很重要的问题。
High Performance cementitious material is specially used for high Performance concrete. Propetties of that are high strength, low water demand, low hydration heat and low shrinkage.
高性能胶凝材料主要用于高性能混凝土，具有强度高、需水量小、水化垫低和收缩小等特点。
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 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.
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。
Mineral blend can markedly reduce the hydration heat and the hydration exothermic rate, and postpone the arrival time of the highest temperature, particularly the double adding and tri adding.
矿物掺合料的加入可明显降低水化热、水化放热速率，推迟达到最高温度的时间，尤其是双掺、三掺时降低效果更为显著。
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 study of hydration heat exhibits that the hydration rate of alkali-activated metakaolin slag slag-based geopolymer is accelerated leading to an increase of early hydration heat by doping resin.
水化热研究表明：有机树脂的掺入，加速了碱激发偏高岭土-矿渣基地质聚合物的水化速率，表现为早期水化热增加。
The mixture ratio of C40 Marine high performance concrete is optimized through test of the hydration heat of binding material, slump, chloride ion diffusion coefficient, anti-crack rand of concrete.
通过测试胶凝材料水化热、混凝土的坍落度和氯离子扩散系数、抗裂等级等性能，对C40海工混凝土的配合比进行了优化设计。
The results show that the early strength and the permeability of concrete can be improved effectively, and the hydration heat can be reduced and the hot peak value at the early age can be postponed.
结果表明：掺加激发剂能有效改善大掺量粉煤灰混凝土早期强度低的问题，而且可以在降低水泥水化热的同时，延缓混凝土早期放热峰值的出现，并使混凝土具有良好的抗渗性能。
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 cooling pipe, using circling cooled water to reduce the heat of hydration in concrete DAMS, is the most efficient method for temperature controlling in concrete DAMS.
在混凝土坝中利用冷却水管中循环冷水来降低混凝土内部水泥的水化热温升，是混凝土坝温度控制的最有效措施。
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。
This paper obtained the temperature effect caused by heat of hydration in hollow thin pier by thermal-stress analysis, considering the change of elastic modulus followed by time.
采用热-结构耦合分析的方法对水化热引起的空心薄壁墩的温度效应进行分析，计算中考虑了混凝土弹性模量随龄期的变化。
The result showed: resistivity curve and heat of hydration curve variation tendencies were approximate and unanimous, can be regarded as a kind of new method to study hydration.
试验结果表明：电阻率曲线和水化热曲线变化趋势近似一致，可作为研究水化的一种新方法。
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。
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。
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