Bearing mortar is recommended; Do you know' Lime. Aging and hardening

A pedestal bearing mortar mortar manufacturer, lime slaking lime slaking refers to quick lime ( Calcium oxide) With water hydration reaction to generate the slaked lime ( Calcium hydroxide) In the process. This process is also called the resolution of lime or digestion. Zhengzhou bearing mortar manufacturer company address quick lime slaking has the following characteristics. 1, the hydration heat is big, hydration heat release speed. This is mainly by lime of porous structure and grain size of the very small. Its original one hour is gives off heat Portland cement hydration exothermic 9 times a day. 2, in the process of hydration volume expansion. Lime in the process of curing the appearance volume can increase 1 ~ 25 times. Calcination is good, high content of calcium lime, its curing speed, large heat quantity, volume expansion is also big. Eliminate lime slaking method is: every half a meter high lime pieces pour the right amount of water ( The amount of quick lime 60% ~ 80%) Until several layers, the fine powder curing get called hydrated lime powder, water added with hydrated lime powder slightly wet but not conglobation advisable. This method is called grey method. 2 the main process of hardening of lime, lime are crystal hardening and hardening two carbide process. 1, crystal hardening. This process is also known as dry hardening process, in this process, the lime slurry evaporation, the calcium hydroxide crystal gradually from saturated solution. Dry and crystallization of calcium hydroxide produce certain strength. 2, calcified hardening. Carbide hardening process is, in fact, the two calcium oxide in air and water to form carbonic first, then what is the meaning of grouting material h40 reaction with calcium hydroxide calcium carbonate, fold out excess water and evaporation at the same time, the process of reactive: Ca ( 哦) 2+CO2+nH2O=CaCO3+（ n+1） H2O generated calcium carbonate crystal symbiosis or symbiosis with calcium hydroxide particles with each other, form the crystallization of tightly woven mesh, thus to improve the strength of cement paste. The above two process was conducted at the same time, in the interior of the lime slurry, the strength is crystal hardening process plays a leading role, and in the slurry surface in contact with air is part of calcified atherosclerosis, due to external hardening of the carbide form of calcium carbonate film reaches a certain thickness, can prevent outside of carbon dioxide to internal penetration and internal moisture to evaporate, coupled with the low concentration of carbon dioxide in air, so the carbonation process generally slower. 基于- - - - - - 60 waterborne epoxy resin grouting material at http://www. godjc。 com/html/jqgj/26. 超文本标记语言