Cold weather construction materials : Part 2 : Regulated-set cement for cold weather concreting ; field validation of laboratory tests /... Houston, B. J,Hoff, G. C 被引量: 0发表: 1981年 加载更多来源期刊 building materials 研究点推荐 COLD WEATHER CONCRETING COLD WEATHER CONSTRUCTION MATERIALS...
It is favorable to use Portland cement for cold weather concreting. When for marine structures, the C3A contained in Portland cement should be between 5% and 8%. 2.1.7Special Portland-based cements 2.1.7.1White Portland cement WhitePortland cementhas essentially the same properties as gray cement...
composition comprising said admixture and a method for casting a durable cementitious solid, in particular a concrete, in cold weather conditions, such as in winter time or in cold geographical areas, more in particular for casting part of the cement tube in bore hole drilling in cold weather ...
The support for the cement market is weak. According to the prediction of SunSirs, the current cement industry has severe overcapacity, and the impact of staggered production on the supply side has significantly decreased. Cement demand has been at a low level for a long time. Therefore, ...
(2) The purpose of reprinting and indicating other sources is for the purpose of conveying more information to readers, and does not mean that it agrees with its views or confirms the authenticity of its content. When other media, websites or individuals reprint and use from this website, ...
is a type of rapid hardening cement with a considerably high compressive strength. High alumina cement is used in construction work where concrete is subjected to high temperatures or chemicals. HAC can gain strength below 0°. Therefore, it can be used for concrete applications in cold weather....
In cold weather concrete to reduce frost damage Where formwork is to be removed quickly. Rapid Hardening Cement It is obtained by adding CaC in Rapid Hardening Cement.The addition of CaC should not be greater than 2% w/w.The time required for transporting,placing,compacting and finishing should...
These types of cement is used for laying marine constructions, sewage works, sewage works and concrete underwater such as bridges, piers, dams and large concrete works, etc. 3. Rapid Hardening Cement: Rapid hardening cement achieves high strength within the initial days used in the construction ...
sustained hot or cold weather periods, extreme exposure and poor concrete-making materials. However, the usage of admixture types is rather random. So what types or categories of materials exist? First, we can divide admixtures into those that are water soluble and those that are not, or ...
aThe forecast mainly tells us the whole country will have fine weather tomorrow. 展望主要告诉我们全国明天将有晴朗天气。[translate] a外面很冷 Outside is very cold[translate] abut what are you doing here 但什么是您这里做[translate] a大学生从事兼职的原因主要有两个:一是为了挣钱支付自己的学费二是...