How to Check the Quality of Cement for Home Construction
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ISI Mark
ISI Mark reassures you that the quality of cement meets the requirements as per Indian standards. Do check for the ISI mark on the stock, when it arrives.
Manufacturer & Trademark name
Check the manufacturer’s name and its registered trademark. If the name and trademark are not properly printed or there are any spelling mistakes, then the cement bag might not be genuine.
Lumps
Ensure that the bag has no lumps in it. Lumps are formed due to the presence of moisture in cement and good/fresh cement has no lumps.
Date of manufacture
The strength of the cement is reduced by 40-50%, a year after manufacturing. Cement should be used within 90 days from the date of manufacture.
Float Test
Throw a small quantity of cement in a bucket of water. It should sink and not float on the surface.
Rub Test
Take a pinch of cement between your fingers and rub it. It should feel smooth while rubbing. If it is rough, that means it has been adulterated with sand.
Temperature Test
Put your hand into the cement bag and if you get a cool sensation, then no hydration reaction has taken place in the bag. And, if it’s warm, time to get the bag replaced.
Colour of Cement
Look for uniformity in colour and texture. Good cement is always uniform in colour.
Cube testing at authorised labs
To get an accurate result and test the true quality of the cement, the most recommended and accurate way of testing the quality of cement is through cube testing at NABL-accredited labs.
Hooks
Avoid using hooks on the bag as it can damage the bag leading to loss of cement.
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