The cement is lumpy, can it still be used? Can the cement be used if it has been left for 5 years bu

No.

1. If the cement is agglomerate, it cannot be used. At this time, the cement has a chemical reaction with moisture, its strength is also decreasing, and even some cement has no strength. If cement continues to be used, various problems will arise.

2. Mix cement and other materials for tiling, and the tiles will be prone to cracking and even falling off in the later stage, so don't be reluctant, once the cement is agglomerate, it must be discarded.

What should be done if the cement is agglomerate.

1. If the cement is damp, it can be treated separately according to the degree of moisture. For example, if the cement is agglomerate, it can be twisted into powder by kneading it by hand. You can directly determine what the label is, and then crush the lumped cement and stir it evenly, which can be used as a plastering mortar.

2. If the moisture is very serious and has formed a hard block, such cement can only be thrown away and cannot be used again. Because its strength has been reduced by 20% to 40%, some cement has no strength, so after such cement is used, it is easy to crack.

It cannot be used because the cement has reacted with the water vapor in the air, the chemical composition has changed, and it has not hardened or lost its strength if water is added to it.

Cement can only be used once! When water is added, it solidifies, and its physical and chemical form has changed, and these changes are irreversible, and the lumps of cement may be caused by the dew at night. Recommendations:

The active ingredient of the cement in the variable block has decreased, and it is not recommended to use it again.

Floor 998

It's best not to use it, if you really want to use it, just smash the lumpy ones and mix them with the glue of 801.

You can smash it into powder and then use it if the effect is not enough than before.

No.

The reason why it cannot be used is because the expiration date has expired.

Usually the warranty period of cement is only 3 months. Once it exceeds 3 months, it will directly affect the quality of cement.

The strength of cement will be reduced by about 40% after one year of storage, and it will reach a very low level after five years. If you use unqualified cement, it is easy to bring problems such as cracking and unstable tile pasting to the concrete.

No matter what kind of cement you buy, as long as the storage period is more than three months, it is not recommended to use, because the strength of the cement beyond the expiration date will drop a lot, if it is only more than one month to two months, it can be mixed with new cement, mixed evenly and used.

Judging that the cement is expired:

1. You can check the production date on the cement packaging bag, under normal circumstances, the production date will be displayed at the top or bottom of the cement packaging bag.

2. Touch the cement with your hands to see if the cement has granular things or has become rougher.

3. Look at the color of the cement, there is no expired cement, it is generally white or yellowish, if it has expired, then it will become dark green and dark gray.

1. The same bag of cement is agglomerate, and the non-agglomerated ones are also damp, and these unagglomerated ones can be used, which can only be used in unimportant places, and it is best not to use them in the parts of the load-bearing structure, and reduce the number of use.

2. Cement is generally improperly stored and agglomerated by moisture, and it will be invalid when wet.

3. The physical strength should be re-tested 3 months after leaving the factory.

It can be used, but the solidification is almost a little, and the marking is lowered!

It is recommended not to use the load-bearing beam of the building, and it is best to use it for general surface cushioning or wall scraping!

1. The cement has been put for 5 years but it cannot be used without agglomeration, and the shelf life of the cement.

Generally, it is only 3 months, and the quality of cement will be affected after 3 months; The strength of cement will decrease by 25%-40% after 1 year of storage; The cement was stored in the cavity state for 5 years, and its strength decreased to a very low level. If unqualified cement is used, it is easy to cause problems such as concrete cracking and unstable tile pasting.

2. Several common cement densities in the world.

For: Portland cement.

the density of ordinary cement, the density of slag cement, pozzolane cement, fly ash cement; The bulk density of Portland cement ordinary cement is 1000-1600kg m3, the bulk density of slag cement is 1000-1200kg m3, and the bulk density of pozzolane cement and fly ash cement is 900-1000kg m3.

We often use cement, sand and other decoration materials when carrying out interior decoration, some people do not store the cement after buying it, and the cement has problems such as damp agglomeration, some consumers want to continue to use agglomeration cement in order to avoid waste, so can the cement be used after agglomeration? Next, I will briefly introduce it to you.

1. Cement agglomeration cannot be used. Because the agglomerated cement has reacted with the moisture in the air, the strength of the cement will decrease, or even have no strength; If we add water and continue to use it, it will cause uneven hydration inside the cement, which is prone to cracking and other problems.

2. When we carry out interior decoration, we often use cement. When you buy, you must buy qualified products from regular manufacturers. Usually, the regular cement is made of laminated woven bags with good moisture-proof properties, and the packaging will indicate the trademark, origin, date, net weight, implementation standards and other relevant information.

3. We should pay attention to the production date of the product when purchasing cement. The shelf life of cement is generally 3 months, and the strength of cement will decrease after 3 months; According to experts from Qeeka Home, the strength of cement will drop by about 10%-20% after 3 months of storage.

4. When using cement, it is necessary to pay attention to the ratio of mortar, and the incorrect ratio of cement mortar is easy to cause hollowing, cracking, insufficient strength and other problems. The cement mortar needs to be used in time after mixing, and according to the relevant regulations, the cement mortar needs to be used within 3 hours after mixing; The cement-mixed mortar should be used up within 4 hours.

After buying cement, we should pay attention to storage and try to avoid moisture in cement, because cement damp agglomeration will affect the quality of cement.

I believe we all know that the importance of cement in construction is self-evident. However, if consumers buy low-quality cement, it will not only affect the decoration quality of the house, but also pose a serious threat to the safety of themselves and their families. So, can cement still be used if it is a little agglomerate?

What are the cement brands? Let's find out together!

1. Can the cement still be used if it is a little agglomerate?

If the cement is lumped, it can be used to pave the ground, but it cannot be used to build a house. Because the hydration inside the agglomerated cement is uneven, it is easy to crack and reduce the strength by about 20%. Therefore, for the selection of cement for building houses, owners must strive for excellence, only in this way can they ensure the quality of the house.

2. What are the cement brands?

1. Conch cement.

Conch Cement is the leading brand of Anhui Conch Cement Co., Ltd., which was established in 1997 and listed on October 21. It is understood that after years of development, the company's projects continue to increase, and have successively supervised the clinker base in five places such as Zongyang, Chizhou and Tongling, and set up three 12,000-ton production lines in Tongling and Wuhu.

2. Shield stone cement.

Dunshi Cement belongs to Tangshan Jidong Cement Co., Ltd., which is already a listed company. It is understood that the company's "shield stone" cement has been recognized by countless consumers. And the company's products have been sold in Asia, Northwest China, North America and other regions.

During 2005, the company was recognized as "well-known protection" by the Industrial and Commercial Bureau, and became one of the most famous brands in China's construction industry.

Summary: The above has introduced to you whether cement can still be used if it is a little agglomerated and what are the relevant contents of cement brands, hoping to give you some small help. If you want to explore more cement-related content, you can continue to lock our **, and we will definitely present you with more exciting content in the future.