People often use cement, sand and other decoration materials in interior decoration. The cement bought by some people is not well stored, and the cement is caked with moisture. In order to avoid waste, some consumers want to continue to use caked cement. Can it still be used after caking? Next, Bian Xiao will give you a brief introduction.

Can't continue to use

The cement is caked and can't be used any more. Because the caked cement has reacted with the moisture in the air, the strength of cement will be reduced or even no strength; If water is used continuously, it will cause uneven hydration and easy cracking of cement.

Buy qualified products from regular manufacturers.

Cement is often used in interior decoration. When shopping, you must buy qualified products from regular manufacturers. Usually, regular cement is packed in plastic-coated woven bags with good moisture resistance, and the packaging will indicate the trademark, origin, date, net weight, implementation standards and other related information.

Pay attention to the production date of the product.

When buying cement, we should pay attention to the production date of the product. The shelf life of cement is generally 3 months, and the strength will decrease after 3 months. According to experts from Qijia. After three months of storage, the strength of cement will decrease by about 10%-20%. If you want to continue to use it, you need to recheck the cement and use it according to the recheck results.

Pay attention to the proportion of mortar.

Pay attention to the proportion of mortar when using cement. Incorrect proportion of cement mortar is prone to problems such as hollowing, cracking and insufficient strength. Cement mortar should be used in time after mixing. According to relevant regulations, cement mortar should be used up within 3 hours after mixing. Cement mixed mortar should be used up within 4 hours.