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。
The key of temperature field analysis in massive concrete is the model for hydration heat of cement.
样品的SEM扫描电镜分析结果显示,通过标准养护和热养护制备的加气混凝土的水化产物有很大的差异。
Samples of SEM analysis showed that the preparation of aerated concrete hydration products have great difference between standard maintenance and thermal curing maintenance.
应用大型有限元分析软件ANSYS,模拟箱形梁水泥水化生热和对流边界条件,进行混凝土水化热温度场仿真计算,并与实测数据进行对比分析。
The temperature field of concrete box girder is analyzed by means of the finite element analysis software ANSYS. The computational results are compared with the experimental results.
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。
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X -射线衍射、差热分析、微量热计及压汞测孔仪对公路粉煤灰水泥的水化产物、水化放热曲线、孔尺寸分布进行了研究。
The hydrated products and pore size distribution of high road fly ash cements were studied by means of XRD, DTA, Mercury porosimeter, etc.
还用TGA - DTA热分析和SEM形貌扫描的方法对改性混凝土的7天水化机理进行了分析研究。
TGA-DTA and SEM were used to analyze 7 days hydration mechanism of concrete modified with ASR.
考虑基桩传热、地基冻土、大气温度变化、混凝土中水泥水化热、混凝土入模温度变化及其相互作用,建立温度场数值分析模型。
In this paper, the integration of foundation pile conduction, frozen soil, air temperature, concrete hydrate heat, concrete molding temperature is considered to establish a numerical simulation.
本文采用定量相分析法测定灰砂系统水热反应的水化物,并通过SEM观察及试块强度测定等研究了灰砂系统水热反应动力学。
Kinetics of hydrothermal reaction in lime-sand system was investigated by means of quantitative phase analysis, SEM observation, and compressive strength measurement.
差示扫描量热分析表明,RPC的水化反应速度很快,主要的水化过程集中在较短时间内;
The DSC showed the reaction rate of RPC was very fast and main hydration process focused in shorter time;
差示扫描量热分析表明,RPC的水化反应速度很快,主要的水化过程集中在较短时间内;
The DSC showed the reaction rate of RPC was very fast and main hydration process focused in shorter time;
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