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calories/gram

cal/g

- K @ $ !

civil engineering, GITAM UNIVERSITY

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13y ago

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What is the equation of heat of hydration?

The equation for heat of hydration is ΔH = q/m, where ΔH is the heat of hydration, q is the heat released or absorbed during the hydration process, and m is the mass of the substance undergoing hydration. It is a measure of the amount of heat energy released or absorbed when one mole of a substance is dissolved in water.


What are the problems associated with heat of hydration?

Some problems associated with heat of hydration include potential cracking and reduced strength of concrete due to rapid heat generation during the hydration process. Excessive heat can also lead to thermal gradients within the concrete, which can cause internal stresses and weaken the structure. Controlling the heat of hydration is important to ensure the durability and performance of the concrete.


What is the root of heat stroke?

lack of hydration


What is the cause of heat stroke?

lack of hydration


What is the allowable maximum heat of hydration of concrete?

heat of hydration should not be more than66 cal/g and 75cal/g for 7&28 days respectively


Treatment for heat stroke?

Hydration and cooling the patient.


When cement is allowed to set why does it give off heat?

The hydration of cement is an exothermic reaction. Three exothermic reactions are important: - hydration of gypsum and tricalciumaluminate - hydration of dicalciumsilicate - hydration of tricalciumsilicate


Why heat is evolved while adding water to sodium hydroxide?

This is called hydration energy (heat).


What are bogues compounds?

Tricalcium silicate(C3S) ALITE (gives early strength to cement....heat of hydration is 120 cal/gm) Dicalcium silicate(C2S) BELITE (gives later strength ie after 7 days...less heat of hydration) Tricalcium aluminate(C3A) CELITE (gives INITIAL strength...high heat of hydration ...320 cal/g) Tetracalcium alumino ferrite(C4AF), FELITE (very high heat of hydration) - K @ $ ! civil engineering... GITAM UNIVERSITY


Why unit of heat is the same with energy?

Heat is a energy form.So unit of heat is the same as energy


What are the Advantages of curing the concrete?

Advantages of curing:Gains strengthYields microcracksReleases high heat of hydration.


What is the SI unit for heat?

The SI unit for heat is the same as for energy, the joule (newton-meter). The SI unit for temperature (comparative heat potential) is the Kelvin (K).