What is the difference between mortar and cement?

First, the difference between cement and mortar

1, cement: it is a powdery and hydraulic inorganic gel material, which can harden in water and air, and tightly bond sand and stone together.

2. Mortar: it is a substance used to stick things when building bricks. It is made of sand mixed with lime putty, cement and clay in a proper proportion, also called mortar.

Second, matters needing attention:

1, and the optimum lime-sand ratio of cement mortar is 1: 3. Too much cement will be wasted and easy to crack. With less cement, the strength will be lower and the durability of mortar will be reduced.

2. Cement mortar consists of lime, cement, fine aggregate, water and active admixture or additive. The existing mortar is divided into cement mortar and cement mixed mortar.

3. Cement mortar is used for building foundation and wall masonry, and can be used as a building block masonry material and an adhesive for indoor and outdoor plastering.

4. When cement mortar is used, some additives, such as micro foaming agent and waterproof powder, need to be added to improve its viscosity. Concrete is made by adding stones into cement mortar in proportion.

Third, the classification of cement

General cement: Generally speaking, this kind of cement is often used in civil engineering. General cement mainly refers to silicate, ordinary silicate, pozzolanic silicate and composite silicate.

2. Special cement: generally refers to cement with special purposes, such as special cement for oil wells and quick-hardening portland cement.