Construcation Building Materials - Cement

Cement ( Italian " cemento "was the word [1] ), mainly, natural limestone stone and clay mixture after being heated at high temperature obtained by grinding power is defined as a binding material.
Mesh size of cement particles is between 5 to 90 microns.

Bagged cement

Other substances such as binders in cements, CaO, MgO and SiO, such as alkaline elements 2 , Al 2 O 3 and Fe 2 O 3 consists of items such as power. After entering the water reacts with cement as the binding for the power connector is called won. Alkaline and hydraulic elements determines the nature of binder ratios.

Cement, plastic, paper pulp mixed with water and after a while came to the state in the air or water slowly solidifies. solidification event that the socket is called. Under normal conditions (28-degree heat and rain in the air), this solidification event begins with the first ten minutes and in the name of the socket false is called, around an hour in the freezing and strength increases. However, this event may vary depending on the current conditions, any chemical retarder is not used, and the air temperature is too low for about 10 hours in a process such as freezing occurs.