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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。
- 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;
- 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。
- At the same time, we analyst the factors that effect the temperature, including the hydrate heat, the variety of air temperature, elastic modulus, stress slackness and so on. 同时还分析了影响温度应力的各种因素，包括水泥水化热，气温变化以及弹性模量模量和应力松弛等。
- 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。
- After mud of bushing column affusion ends, because the action of to hydrate heat makes grout arises in gel process,warm up phenomenon, and subsequently weightlessness. 套管柱注水泥结束后 ,由于水化热的作用使水泥浆在胶凝过程中产生升温现象 ,并随之失重。
- Heat sometimes causes a prickly rash on the skin. 热有时使皮肤上生剌痛的疹子。
- 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。
- It is this molecular motion that we call heat. 就是这种分子运动我们称之为热。
- Heat may travel in the same manner as light does. 热可以与光同样的方式传播。
- The game didn't heat up until the second half. 游戏玩到后半场才热闹起来。
- The radiator is giving out a lot of heat. 散热器释放出很多热量。
- The heat blistered the paint on the building. 高温使得那座建筑物上的油漆起了泡。
- If the fuel is burnt, just heat is let out. 燃料如果被燃烧，就放出热。
- 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。
