How can fly ash be distinguished from cement?
The fine ash trapped in the flue gas from coal combustion is called fly ashFly ash exists in the form of particles, and the mineral composition, particle size and shape of these particles are different, and the color varies from milky white to gray.
Cement: powder, hydraulic, inorganic cementing material. After mixing with water, the paste can be hardened in air or hardened in water, and the sand, stone and other materials can be firmly bonded together.
The difference between the two is as follows:1. color: cement color is generally deeper than the fly ash, fly ash is generally pale gray;2. density: cement density is greater than the density of fly ash, the same volume compared to weight, heavier cement;3., water hardness: both have a certain degree of water hardness, but the hardness of cement hardening is much greater than the hardness of fly ash;4. touch: fly ash feels smoother, cement is coarser.
