Can cement be used if it has not lumped up after being stored for a year? What can I do to clear cement blocks in the sewer pipe?

As an important cementitious material, cement is widely used in civil engineering, water conservancy, national defense and other projects. There are many types of cement on the market, including Portland cement, ordinary Portland cement, composite Portland cement, slag Portland cement, etc. Ordinary Portland cement or composite Portland cement is commonly used in home decoration. Let's learn about it together.

Contents of this article

1. Can cement be used if it is not agglomerated after being stored for one year?

2. What to use to clear cement stones in the sewer pipe?

3. What to use to dissolve cement after it hardens

Can cement be used if it is not agglomerated after being stored for one year?

No, the shelf life of cement is generally 3 months. Cement that has passed its shelf life will be partially hydrated due to moisture in some cement particles. Cement that has exceeded its shelf life is not unusable, but its strength grade will be reduced. In this case, continuing to use it will affect the construction effect.

When buying cement, you should first check its packaging to see if there is any corresponding introduction on the packaging. You should understand the origin, production time and manufacturer of the cement.

When buying cement, you can observe the color of the cement. If it is dark gray, it means the quality is good.

If the cement has too many aggregates or is mixed with other materials, the color will become whitish and the strength may not reach the corresponding grade.

What to use to clear cement stones in the sewer pipe

If the cement block has just fallen, you can find a stick, poke it and flush it with water to finally flush the cement block down. If the cement has solidified, you need to contact a professional to use a pipe dredging machine to slowly break up the cement and then flush it away.

Sewer pipes are usually made of PVC. If pipe unclogging is used to solve cement blockage, the pipe body may corrode and age due to improper selection of pH.

After the sewer pipes have been used for a long time, they are likely to need to be unblocked. If the blockage is just caused by ordinary food residues or hair, you can unblock it yourself.

When you encounter a situation where you can't unclog the sewer pipe, it's best to ask a professional to help. It's recommended not to unclog it randomly, so as not to damage the sewer pipe and cause water leakage.

What to use to dissolve cement after it hardens

You can use hydrochloric acid or hydrofluoric acid to dissolve cement, or use other acidic substances to react with it to dissolve cement. You can also buy cement dissolving agents on the market, put them in full contact with cement, and finally rinse them vigorously with water.

Cement refers to a powdered hydraulic inorganic gelling material, which becomes a slurry when mixed with water. It can harden in the air or in water, and can firmly bond sand, stone and other materials together.

As an important cementing material, cement is widely used in civil construction, water conservancy, national defense and other projects.

There are many types of cement on the market, including Portland cement, ordinary Portland cement, compound Portland cement, slag Portland cement, etc. Ordinary Portland cement or compound Portland cement is commonly used in home decoration.