Ripening and hardening of heavy calcium carbonate

The so-called ripening of heavy calcium carbonate is the process of reacting with water to produce heavy calcium carbonate. It can also be called digestion. The resulting heavy calcium carbonate is called slaked lime or slaked lime. Its knowledge of curing and hardening is:

First, in the ripening process of heavy calcium carbonate, lime will increase by one to two times the volume, releasing a lot of heat.

Second, the hardening of quicklime has two processes at the same time. The lime slurry is dried by evaporation or absorption of water, and capillary pressure is generated in the pore network of the slurry to make the lime particles more compact and obtain strength.

Third, in the quicklime, 60%~80% water is evenly added to obtain slaked lime powder with fine particles and uniform dispersion.

Fourth, the ripening of heavy calcium carbonate can cause supersaturation of the heavy calcium carbonate solution in the slurry, crystallizing the crystal of heavy calcium carbonate, and producing strength.

5. If the heavy calcium carbonate is matured with an excess of water, a lime paste with a certain consistency will be obtained.

In addition, heavy calcium carbonate reacts with carbon dioxide in the air to form calcium carbonate in a wet state, and releases moisture, which is called carbonization. The above is the knowledge about the ripening and hardening of heavy calcium carbonate, I hope you can be satisfied.