Research on method of reading in temperature field of hydration heat of concrete based on ANSYS software;
基于ANSYS的混凝土水化热温度场读取方法
Research on hydrated process and hydration heat for high added fly ash slag cement;
高掺量粉煤灰矿渣水泥水化进程及水化热的研究
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
Effects of WH-Ⅱ super set retarding agent on the heat of hydration and other behavior of Portland cement;
WH-Ⅱ型超缓凝剂对硅酸盐水泥水化热及其它性能的影响
Study of the temperature effect caused by heat of hydration in hollow-thin pier;
空心薄壁墩水化热温度效应研究
The effects of different kinds of mineral and chemical admixtures on the heat of hydration of the fresh cement were investigated by means of measurement of the heat of hydration and the principles of reducing or raising the heat of hydration were probed too in this paper.
采用直接测定法测试了矿物、化学外加剂对水泥净浆的水化热的影响 ,并对外加剂降低或提高水化热的原理作了一些探讨。
Finite element ansys of hydrated heat temperature stress of the thin-walled box pier;
薄壁箱型桥墩水化热温度应力场有限元分析
It is expected to develop an intelligent concrete with automatic control of hydrated heat so as to avoid or prevent thermal crack at early stage,hence to improve the durability of concrete.
早期热裂缝已成为影响混凝土结构耐久性的制约因素之一,期望研制一种水化热自控的智能混凝土,以期避免或预防早期热裂缝,进而改善混凝土的耐久性。
The decompose,variation and formation of compounds in the hydrate processof solid alkaine component AAS cement are studied by determine and analyzing the hydrate heat and binding energy, which provided theoretical basis for further study on hydrate mechanism of this kind of cement.
通过测定水化热和元素结合能,研究了固态碱组分碱矿渣水泥在水化过程中化合物的分解、变化和形成过程,为进一步研究这种新型胶凝材料的水化机理提供了理论依据。
0413cm 3/g and lower hydrate heat which is 253kJ/kg.
０４１３ｃｍ３·ｇ－１，结构致密；７ｄ水化热为２３５ｋＪ·ｋｇ－１，属低热水泥。
The difference is caused by various factors including large volume pouring concrete at once,hydrate heat of cement aggregating in concrete is hard to emanate,remarkable temperature rising in the concrete and quickly heat radiating of concrete surface.
厚大体积混凝土施工由于一次浇注体积大、水泥水化热聚集在内部不宜散发、内部温度升高显著、外表散热速度较快,致使混凝土内外温差较大,若温差过大(超过25°)容易在混凝土表层产生裂缝。
The article,based on the finite element software,did calculations and analysis on the temperature stress of the construction of one arch seat,taking the elastic modulus,creep of concrete changes and casting in layers,and proposed measures to prevent cracks caused by exterior temperature changes and cement hydration heat and did some analyses on the data of temperature.
文章采用有限元结构分析软件对某拱座进行了混凝土施工期间的温度应力计算分析,计算过程考虑了混凝土的弹性模量、徐变等参数随龄期变化和分层浇筑对拱座温度应力产生的影响,提出了防止施工过程中由于外界温度变化及水泥水化热等因素引起裂缝的措施,并通过部分监控数据对拱座温度变化规律进行了分析。
For providing design and engineering of box girder with beneficial references,the main purposes of temperature test of hydration are to grasp the regularities of(distribution) of hydration temperature follow box girder section and under considering the state of arts of concrete construction,we estimate temperature stress.
为了掌握水化热温度沿箱梁截面的分布规律,并根据混凝土施工工艺状况,估算温差应力,特对混凝土箱梁进行了水化热温度试验,为箱梁设计与施工提供有益的参考。
During the construction of concrete grouting pile in permafrost,the hydration provides the heat before freezing and leads to increase of the ground temperature.
在寒区冻土层灌注桩混凝土施工中,水化热保证了混凝土受冻前的温度,又导致周边冻土层地温上升。
During the process of peptization and hydrothermal crystallization, the aggregation behavior and the resulting morphology of nanocrystalline titania (TiO2) were studied by X-ray diffraction (XRD), scanning electron microscope (SEM), and dynamic light scattering (DLS) techniques.
通过XRD、SEM和动态光散射粒度测定仪(DLS)研究了胶溶及水热晶化过程中纳米TiO2晶粒聚集行为及形貌。
Meso-pore zeolite MCM-41 was synthesized by means of microwave crystallization,room-temperature crystallization and hydrothermal crystallization.
分别用微波晶化、常温晶化、水热晶化3种方法合成MCM-41中孔分子筛,详细比较了这3种合成方法在操作参数和所合成分子筛物性方面的差异。
The molecular sieve of LaSAPO is synthesized by means of hydrothermal crystallization method in the presence of surfactants CTAB and TMAOH,used as the templates.
选用表面活性剂四甲基氢氧化铵(TMAOH)和十六烷基三甲基溴化铵(CTAB)为模板剂,采用水热晶化法合成了镧硅磷酸铝分子筛(LaSAPO),用XRD技术考察了晶化温度、晶化时间、模板剂用量、硅铝比及体系pH值等条件对分子筛晶相的形成和产物结晶度的影响。
Test method for heat of hydration of cement-The heat of solution method
GB/T12959-1991水泥水化热测定方法(溶解热法)
testing method for heat of hydration of portland cement
普通水泥水化热试验方法
Test method for heat of hydration of cement--Adiabatic method
GB/T2022-1980水泥水化热试验方法(直接法)
Water vapors in the hot sun.
水在炎热的阳光下汽化。
hot water will gelatinize starch.
热水将会使淀粉胶化。
Ice changes into water rapidly on a hot day.
热天冰很快化为水。
lithium bromide absorption water heater
溴化锂吸收式热水器
While being turned into water, ice takes in heat.
冰化成水时要吸收热量。
The Simplifying Design of Hydrodynamic of Small Type Water-fire Tube Hot Water Boiler
小型水火管热水锅炉水动力简化设计
Solvothermal (Hydrothermal) Synthesis of Main-Group Elemental Chalcogenides;
新型主族硫属化物的溶剂热（水热）合成
Thermochemistry Study on Properties of Thermal Energy Storage in Zeolite/Water System;
分子筛/水体系蓄热特性的热化学研究
Problems of the Commercialization Process of Air-Source Heat Pump Water Heater;
空气源热泵热水器商品化存在的问题
INSTALL WATER HEATING MEDIA SYSTEM TO INCREASE HEAT EFFICIENCY OF COKING HEATER
增设水热媒系统 回收焦化加热炉烟气余热
Fouling Fluidized-removing and Heat Transfer Enhancement Technique on Intake Water and Heat Transfer of Sewage-source Heat Pump System;
污水源热泵系统取水换热过程流化除垢与强化换热方法
Study on Energy Saving and Optimization Control of Ground-water Heat Pump System;
水源热泵供热水系统的节能优化控制研究
Heating water does not change its chemical composition.
把水加热不会改变水的化学成分。
Harm of vaporization of water in hot water boiler and preventive measure
热水锅炉锅水汽化的危害和预防措施
The Research of Thermo Economic Isolation on Direct Heated Solar Seawater Desalination System
太阳能直热式海水淡化系统热经济孤立化研究