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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。
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 results show that the hydration heat model of concrete is acceptable, and the thermal stress may make concrete wall crack at early age. 结果表明:引入Arrhenius公式的混凝土水化放热模型可以用于计算混凝土结构早龄期时的温度场;早龄期时温度应力可以引起混凝土长墙的开裂.
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。
To remove the unfavorable impact caused by the temperature rise of hydration heat during the construction period is key to the design of high RCC arch dam. 控制拱坝的裂缝是拱坝设计中必须认真解决的问题,而消除施工期水化热温升的不利影响,是碾压混凝土高拱坝设计中的关键。
Compared with the retarder and water reducer,it has been proved that PCM can not only lower the peak value of the cement's hydration heat,but also delay its occurrence. 经与缓凝剂、减水剂比较得出,相变材料不仅可以降低水泥水化热的峰值,还可以延缓峰值的出现。
Combine the numeric calculation medal of concrete hydration heat,using ADINA finite element program ,numerically simulates the temperature field of frozen wall and shaft lining. 结合混凝土水化热情况下冻结壁井壁温度场数值计算模型的建立方法,运用有限元软件ADINA建立数值模型,进行冻结壁温度场计算,得出冻结壁温度场分布特性。
The experimental results show that these models can express precisely the isotherm hydration heat emission curve of Portland cement and the autogenous shrinkage process of concrete prepared with Portland cement. 实测数据检验结果表明，这2个模型可以用于模拟硅酸盐水泥的等温水化放热曲线，以及用硅酸盐水泥配制的混凝土的自收缩发展过程。
By means of analyzing the measured data of deformation and temperature inside the structure, the laws of deformation and temperature of the SFRC structure under the influences of early hydration heat and outside temperature were found. 通过实测结构内部温度及其变形，给出了钢纤维混凝土在早期水化热及外界温度影响下的温度及变形规律。
Research is made on the influence of clinker modular value on rotary kiln capacity, clinker physical property, water reducer compatibility, hydration heat and impact resistance of cement mortar. 本文研究了熟料率值变化对新型干法窑台时产量、熟料物理性能、水泥减水剂相容性、水化热、水泥胶砂抗冲击性的影响。
It can be minimized or prevented by using low-alkali low-C3A and low hydration heat cement or adding mineral additive finer than the cement and curing at moisture-retention and heat-insulation. 采用低碱低C3A低水化热的水泥、在混凝土生产中掺入比水泥细的矿物掺合料、在混凝土浇注后采取保湿保温养护等措施可减少或避免混凝土的早期开裂。
Studies on Control of Mass Concrete Hydration Heat 大体积混凝土的水化热控制研究
The hydrating heating was tested by the isothermal calorimeter. 采用扫描电镜研究了矿物的晶体形貌;
Application of Excel to Hydration Heat Experiment of Concrete excel在混凝土水化热试验中的应用
HYDRATION HEAT ANALYSIS AND CRACK CONTROL OF LARGE BASEPLATE 大型基础承台水化热分析与裂缝控制
Heat sometimes causes a prickly rash on the skin. 热有时使皮肤上生剌痛的疹子。
Factors of influencing cement hydration heat measured by solution heat method 影响溶解热法测定水泥水化热的原因
Study of Effect of Mineral Admixtures on Cement Strength and Hydration Heat 矿物掺合料对水泥强度及水化热的影响研究
The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
The heat had blistered the paint of the building. 酷热使建筑物上的油漆起了浮泡。