Heat of Hydration of Cement

Heat of Hydration of Cement: MTCT-09

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.

Features:-

Initial Hydrolysis
Induction Period or the Dormant Period
Acceleration
Deceleration
Steady State
Heat hydration of cement with water is exothermic
Exothermic-an exothermic reaction is a chemical reaction that releases by light or heat
The liberation of heat is called heat of hydration
Study and control hydration becomes important in mass construction (like dams etc)
Heat evolution due to the reaction of solution of aluminates and sulphates
Fully-automatic test procedure
Evaluation and documentation of test results via computer
Rigid, durable measuring instrument for industrial and laboratory use
Simple operation
Self-calibrating

Category: Cement Testing Equipment

Description
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Description

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

** Note:-The content of the product and specification are subject to change without prior notice for continuous improvement. Images shown are for representation purpose only. “MICROTEKNIK” keeps the right to modify the content in the product without prior notice.

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Heat of Hydration of Cement