For How Long Period Cement can be Used? (From Date of Manufacture)

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No verified documents are available which focuses into the experiments being done on cement at various ages of storing. Cement is a hygroscopic construction material. It reacts with moisture (either in liquid or in vapour form) quickly. Moisture is a big enemy of cement and cement bags never stored for a long period.

In presence of moisture, cement undergoes chemical reaction termed as hydration. Once hydration process taken place, cement becomes useless. Therefore, cement can remain in good condition as long as and it does not come in contact with moisture.

Also Read: 10 Precautions while Storing Cement Bags in the Godown

If cement bag is more than three months old, then cement should be tested for its strength before being taken into use. Indian standard specifies that cement has to be retested before use if cement falls into following two criteria and may be rejected if it fails to meet the requirements as below:

01. Cement stored in bulk at the mill for more than six months.

02. Cement in bags in local storage in the hands of a vendor or site stored for more than three months.

Courtesy - 123rf
Also Read: 11 Points to Check on Cement Bag Before Buy It

Major cement manufacturer shave carried out research and development and evidently confirms that cement losses its strength over period of time and it is described in table below:

REDUCTION IN COMPRESSIVE STRENGTH DUE TO AGING

SR NO.
PERIOD
REDUCTION IN STRENGTH

01.

3 months

20%

02.

6 months

30%

03.

12 months

40%

04.

24 months

50%

It is advisable to use fresh cement as possible. Uses of old cement can leads various problems such as the development of cracks, leakages, corrosion etc. It also increases the maintenance cost of your structure and it affects the life of the structure.

Also Read: 4 Things that can Prevent the Wastage of Your Cement

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