Frequently Asked Questions
Cement & Concrete
Technology Home > FAQs> Storage of Cement Bags on Site
Q: What is the best way to store bags of cement
on site?
 A:
The primary concern for storing portland cement is to prevent exposure
to moisture. Cement stored in damp air or moisture sets more slowly
and has less strength than cement that is kept dry.
Bagged cement stored on a job site should be stacked closely together
on pallets to reduce air circulation and to raise the cement above
any moisture sources; it should also be covered with tarpaulins
or other water-proof covers for further protection from moisture.
If possible, store cement inside a structure to further reduce
the potential for moisture exposure, but never place the cement
directly next to an exterior wall. The relative humidity within
the structure should be reduced as much as possible.
These recommendations are from Design
and Control of Concrete Mixtures, EB001.
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