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.
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。
Effect of fly ash on the workability, strength and hydration heat of high belite cement and concrete.
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 concrete winter construction, the hydration heat of cement can be made use of as a sort of energy.
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。
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.
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。
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.
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.
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。
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.
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.
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 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.
大体积混凝土在固化过程释放的水化热会产生较大的温度变化和收缩作用。
Releasing steam heat from the mass concrete structures while solidifying leads to produce the temperature change and contraction.
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。
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.
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.
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.
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。
In mass concrete construction, the structural cracks by cement hydration heat will influence the durability and mechanical properties of concrete.
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.
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.
本文通过三种不同钢纤维掺量的钢纤维混凝土早期水化热温度和变形实测，得到了不同掺量钢纤维混凝土的水化热温度及温度变形的时程线。
In this paper, three mixed steel-fiber concrete and ordinary concrete specimen were tested for revealing their early thermal behavior and strain caused by hydrated heat.
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 early cracking of concrete is usually caused by dry shrinkage, autogenous shrinkage of cement hydration and thermal-strain by hydration heat of cement.
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。
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.
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。
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.
结合珠江大桥工程实际情况，制定了优化混凝土配合比和恰当布置冷却水管两个水化热控制方法。
Combined to the practical situation, draw up the mix proportion optimization and proper cool water pipe arrangement with hydrated heat control.
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 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 types of those cracks are summarized as three kinds: plastic shrinkage cracking, dry shrinkage cracking and hydration heat cracking.
应用推荐