Micro wave absorption of hardened cement.
水泥石对微波的吸收。
The resistance to Na_2SO_4 attack of hardened cement paste added with asphalt was studied.
研究了掺沥青水泥石的抗硫酸钠腐蚀性能。
The microstructure of hardened cement pastes with and without admixture was also investigated.
对硬化粉煤灰水泥浆体的微结构也进行了探讨。
In this paper, the test method of the linear thermal expansion coefficient of hardened cement paste is studied.
本文研究了水泥石线性热膨胀系数的测试方法，并针对本试验方法制定了相关的试验制度。
The shrinkage factor increases with the increase of specific surface area and the amount of banded water in hardened cement pastes.
收缩率随着水泥石比表面积、结合水含量的增加而增加。
Similarly, it is described that the temperature, salinity and some other factors affect the hydration degree and hardened cement strength.
分析了温度、盐浓度对水泥浆水化程度和水泥石强度的影响。
Furthermore, the cracking layer adjacent to hardened cement paste may affect the interfacial properties oi concrete, such as bond strength.
同时，界面水泥侧的易干裂层对混凝土的界面性能(如粘结强度等)可能有一定影响。
The corrosion essence of the concrete is that corrosive materials attack its hardened cement paste and thus destroy the concrete as a whole.
混凝土的侵蚀实质是水泥石的侵蚀，而造成混凝土宏观破坏。
Microstructure investigations on the hardened cement past blended with different mineral admixtures are made by using A. C. impedance spectroscopy.
采用交流阻抗方法对掺有不同辅助性胶凝组分的高性能水泥硬化浆体的微结构进行了研究。
The influence of hydroxyethyl methyl cellulose and vinyl co-polymer on the bulk density and capillary water absorption of hardened cement mortars was studied.
研究了羟乙基甲基纤维素和乙烯基共聚物2种聚合物干粉对硬化水泥砂浆体积密度和毛细孔吸水率的影响。
The results indicated that the inner self-desiccation degree of hardened cement paste containing UFA reduced more than that of ordinary hardened cement paste.
结果表明，相比于基准水泥石，UFA水泥石内部自干燥程度大大降低；
The study results could be used in the probability fracture analysis and construction quality control of interface between coarse aggregate and hardened cement mortar.
通过断裂韧性分布特性的研究，将为粗骨料与硬化水泥浆体界面概率断裂分析与施工控制提供了参考依据。
The invention also provides a cement composite formation method, characterized in that the substance block agent is coated on the surface of the hardened cement product.
又，本发明亦为以于水泥硬化体表面被覆以前 述物质隔绝剂为特征的水泥复合体的形成方法。
The expansion mechanism of hardened cement paste with double expansion sources of entringite and brucite was studied by using theory of fractal geometry and viscoelasticity.
应用分形学与粘弹性力学对含钙矾石和水镁石膨胀源的水泥硬化浆体的膨胀机理进行了研究与分析。
In the cement composite, a hardened cement product is coated with a substance block agent composed chiefly of an aqueous dispersion of synthetic resin, a swelling clay mineral and a pigment.
其为在水泥硬化体上被覆有合成树脂水性分散体、膨润性粘土矿物及以颜料为主成分的物质隔绝剂所成的水泥复合体。
The presence of aggregates in cement-based materials might modify the pore structure of hardened cement paste, and its dilution effect and tortuosity effect could reduce chloride transport properties.
骨料改变了水泥基复合材料中浆体的孔结构，其稀释效应和曲折效应降低了氯离子的传输性能；
Canal engineer Canvass White solved one of the construction obstacles when he discovered how to create a cement that hardened underwater.
运河工程师Canvass White解决了一个施工难题，他发明了水下硬化水泥。
Using physical phase analysis technology, the component and shape of fly ash cement hardened paste and the offspring of HPC bearing load faction is researched.
利用物相分析技术，研究粉煤灰—水泥硬化浆体的组成、形貌以及HPC在荷载作用下的腐蚀产物。
After studying the hardened concrete properties index and cement properties index, and got that there were no significant relationship between them.
研究了硬化混凝土性能指标与目前水泥性能指标的关系，结果表明，两者之间没有良好的相关关系。
However, there are large distinctions between the influences of the two types to the workability of cement paste and fresh concrete, the mechanical properties and microstructure of hardened concrete.
它们对水泥净浆和新拌混凝土的工作性的影响有所不同，此外掺加两类减水剂的硬化产物的力学性能和微观结构也具有很大差别。
High range mortar plasticizer is a new special additive for cement mortar. Its addition can not only obviously improve performance of fresh mortar but also increase performance of hardened mortar.
高效砂浆塑化剂是一种新型的水泥砂浆专用外加剂，掺入后不仅能明显改善新拌砂浆性能，而且能提高硬化砂浆的性能。
The experimental results indicate that steam curing condition increases early hydration velocity of cement-fly ash composite binders and improves compressive strength of hardened pastes.
试验结果表明：蒸汽养护条件提高了水泥-粉煤灰复合胶凝材料的早期水化速度，并且提高了硬化浆体抗压强度。
Activated by sodium glass, chemically bonded ceramics were produced with water-hardened slag grains from blast furnace, and the strength grade could be the same as grade 52.5 cement.
采用水玻璃激发高炉粒化矿渣，制备出了强度等级达到水泥52.5的化学结合陶瓷，并研究其反应机理。
Activated by sodium glass, chemically bonded ceramics were produced with water-hardened slag grains from blast furnace, and the strength grade could be the same as grade 52.5 cement.
采用水玻璃激发高炉粒化矿渣，制备出了强度等级达到水泥52.5的化学结合陶瓷，并研究其反应机理。
应用推荐