Heat Of Hydration Of Cement

Product Description

Heat Of Hydration Of Cement

The chemical reaction that takes place between the cement and water is referred as hydration of the cement. The hydration reaction is an exothermic reaction. The cement hydration will liberate a considerable amount of heat. This is called as Heat of liberation or Heat of Hydration. The mixing of cement with water will result in rapid evolution of heat that will last for few minutes. This evolution of heat is probably due to the reaction of a solution of aluminates and the sulfates. This rapid heat and reaction are depressed by the addition of gypsum. The Early heat of hydration is due to the hydration of C3S.

The hydration process is not instantaneous. The reaction is faster in the early stages and will go decreasing with the time period. It is observed that the complete hydration is possible only for cement particles that have a particle size smaller than 50 microns. With the increase in the fineness, there is an increase in the rate of hydration. 

Technical Specification

• Consists of a Dewar vessel, which is located in an insulation wooden box, an electrically driven stirrer with constant speed
• Funnel (Dewar vessel can be easily removed from the wooden box and replaced)
• Dimensions: 350 x 250 x 680 mm
• Power: 230V / 50Hz
• Does not include: Thermometer and stirring rod