magnesium sulphate
When Mixing sugar water with cement, If everything is done correctly you end up with one sweet concrete job......
No, cement is not recyclable.Because when it is mixed with water chemical reaction takes place and gains strength and hardens.The hardened cement cannot be used as a recycled one because no chemical reaction takes place when mixed with water.
The very basic chemical compound of cement is Calcium Hydroxide. The calcium hydroxide is mixed with water and the carbon dioxide in the air acts on it to harden it.
4CaO.Al2O3.Fe2O3 (Tetracalcium Alminoferrate)
it is mixed with clay to form cement.
Cement mixed with gravel makes aggregate.
When hydrochloric acid is mixed with white cement, a chemical reaction occurs that releases carbon dioxide gas and forms calcium chloride. This reaction can weaken the structure of the cement and reduce its strength. It is important to avoid mixing hydrochloric acid with white cement to prevent damage.
Cement is perishable because it can absorb moisture from the air, causing it to harden and clump together. Exposure to moisture can lead to a chemical reaction that affects the chemical structure of the cement, reducing its ability to properly bond and harden when mixed with water. Proper storage in a dry environment is crucial to protect cement from perishing.
Cement paste is formed when cement is mixed with water. However, cement mortar is formed when cement is mixed with fine aggregate (sand) and water.The strength of cement mortar is more when compared to cement paste.Shrinkage will be less in cement mortar and high in cement paste.
For example the heating of limestone mixed with other raw materials.
Cement itself is not a suspension; it is a powder made from a mixture of clinker and gypsum that hardens when mixed with water. However, when cement is mixed with water to create a slurry, it can form a suspension, where solid particles are dispersed in the liquid. This suspension is crucial for the mixing and application of cement in construction. Once it sets, the mixture undergoes a chemical reaction to form a solid structure.
Portland cement (and the concrete, mortar, thin set, or other masonry product made from it) doesn't dry. Rather, it cures by a chemical reaction initiated by putting water in it. The reaction is irreversible; hence, adding water to cement is an irreversible change.