B. Maintain rammed earth with minimal moisture loss at relatively constant temperature for period necessary for hydration of cement and hardening of rammed earth.
在相对稳定的温度下,确保夯实墙的最小湿度,以保证水泥的水化和夯实墙的硬化。
Experimental research on hydration of cement, sunlight temperature field and temperature effect of railway concrete box girder is studied in this paper.
运用试验方法,对铁路混凝土箱形梁的水泥水化、日照温度场及温度效应进行研究。
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。
The effect of the curing temperature on the strength, the CH content and the degree of C_3S hydration of the fly ash cement and pure cement was studied.
本文研究了养护温度对粉煤灰水泥及纯水泥的强度,CH含量及C_3S水化程度的作用。
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 calculation system of 3 temperature fields about batten-wall under the mean annual temperature, the cement hydration and the form-covering in winter is presented.
计算在年气温周期变化下,水泥水化热作用下及冬季模板覆盖下板墙的三种温度场。
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 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。
In the paper, strength properties, hydration and hardening process of high-temperature geothermal well cement are studied under different hydrothermal conditions.
研究了由不同配比的高抗硫g级水泥与石英砂粉组成的高温地热井水泥在不同水热条件下的强度性能及其水化硬化过程。
In the paper, strength properties, hydration and hardening process of high-temperature geothermal well cement are studied under different hydrothermal conditions.
研究了由不同配比的高抗硫g级水泥与石英砂粉组成的高温地热井水泥在不同水热条件下的强度性能及其水化硬化过程。
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