Heat of Hydration Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-CACTE-9464
Jlab Export is a leading Heat of Hydration Apparatus Manufacturer,and suppliers in India
Cement gives off heat as it reacts with water, and in thick concrete pours that heat can lead to cracking. This apparatus measures it in calories per gram by the heat of solution method. It is a calorimeter made up of a double-walled vacuum flask, a Beckman thermometer, a constant-speed stirrer and a funnel for adding the sample.
Specifications
| Flask | Wide-mouthed, double-walled vacuum flask in an insulating container |
| Thermometer | Beckman type, range 5 °C, with reading lens |
| Stopper | Cork, in two halves, holds the thermometer clear of the stirrer |
| Stirrer | Constant speed, double-bladed propeller, to within 38 mm of the flask bottom |
| Funnel | Gooch type, stem 6 mm I.D., body about 25 mm long and 25 mm dia |
| Power supply | 230 V AC, 50 Hz |
| Result | Heat of hydration in cal/g |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Heat of Hydration Experiments
The method compares two heats of solution. Students dissolve dry cement in an acid mixture in the flask and record the temperature rise on the Beckman thermometer while the stirrer runs. They repeat this with the same cement after it has hydrated for a set time, ground first in a Mortar and Pestle. The difference between the two heats of solution is the heat of hydration.
Samples are weighed on an Electronic Balance Analytical, and the calorimeter is first calibrated with a substance of known heat of solution. A class can compare an ordinary Portland cement with a low heat cement and see why low heat cements are chosen for dams and large foundations.
Frequently Asked Questions
What is heat of hydration?
It is the heat cement releases as it reacts with water, given in calories per gram of cement. Much of it comes out in the first few days. In massive concrete it builds up inside, and the temperature difference to the surface can crack the concrete.
Why is a Beckman thermometer used?
The temperature rise in the calorimeter is small, so it must be read to a fraction of a degree. A Beckman thermometer covers a short span, 5 °C on this one, with fine graduations, and it can be set to suit the starting temperature.
Why is the stopper made in two halves?
The cork stopper holds the thermometer firmly, clear of the stirrer blade and the reading lens. Because it splits into two halves, it can be taken off around the thermometer and stirrer shaft without pulling either out.
How is the sample added?
Through the Gooch-type funnel fitted in the stopper. Its stem has a 6 mm bore, so the powder goes straight into the liquid without the flask being opened and heat being lost.
What does the vacuum flask do?
The double-walled vacuum flask, inside its insulating container, cuts heat exchange with the room. Nearly all the heat from the reaction then goes into the temperature rise that the thermometer reads.
Other Apparatus for Testing Cement
For a quote, use Add To Cart or send us a message through the contact page.
Last updated: 5 November 2026
