All specimens of soil-RHA-cement were tested after the initial setting of cement. The direct shear test was set up to compare different soil-RHA-cement mixtures under three normal stresses of 40, 60, and 80 kPa. The test results showed the difference in each mixture's shear...
2.1.4.1.4Setting time As soon as the water is mixed withPortland cement, thehydration processstarts and it begins to set. The activity of changing from a fluid state to a solid state is known as the setting. The knowledge of the setting time of the cement is always helpful in deciding ...
aThe term gauging is sometimes used to denote the initial mixing of the cement with water; curing means leaving the paste while setting and hardening proceed, and can be carried out under various conditions, as in air; under water, or in saturated steam. 期限测量有时用于表示最初混合水泥用水...
initial setting time The time required for a freshly mixed cement paste, mortar, or concrete to achieveinitial set. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. Want to thank TFD for its existence?Tell a friend about us, add a lin...
Resorbable bioactive calcium phosphate cement The acidity of the setting cements depends strongly on the nature of the calcium phosphate salt used, the acidity of the setting reagent, and the reaction rate. The present invention uses high alkaline calcium phosphate ceramics such as... ST Liu,HH ...
This paper presents a systemic response analysis of the final setting time of concrete based on initial setting time and cement replacement with bagasse ash. The response coefficient was evaluated to ascertain the viability and reliability of the final setting time dependence on the considered input ...
The initial structure design of ellipse reflector and quadrilateral rod lens in illumination system; 照明系统中椭球反光碗及方棒的初始结构设计 2. The effect of triethanolamine(TEA) on the initial structure formation and mechanical properties of cement was investigated by the testing of setting time,...
PURPOSE:To enable the initial setting of pulse distance coefficient with relatively high accuracy, by imparting the length between left and right wheels having wheel velocity sensors mounted thereto and performing 8-shaped running to calculate the pulse distance conversion coefficient. CONSTITUTION:A right...
The friction and initial setting position of preform have an important influence on the metal flow and cavity filling during die forging process of large-scale component, especially for closed-die forging with flash of large-scale titanium alloy strut. This paper studies the influence of processing...
On the basis of the model,the formula for calculating thefirst crack strengthof cement composites is established, that is,first crack strengthratio rc,is the function fo fibre volume v, and critical fibre volume v10. 本文根据线弹性断裂力学及纤维间距理论对纤维增强水泥基内部存在的微裂缝形状提出假...