Lafarge cements are designed to respond to the requirements of all of the Group's customers. Its broad range of products is suitable for industrial players, individual customers and architects:
- Portland cements: high-quality basic building materials that are both efficient and versatile.
- Portland limestone cements: more environmentally friendly Portland Cement equivalents cements for different types of environments: products suitable for exposure to seawater, sulphates and other aggressive environments.
- Special cements for specific applications: including white cements for architectural projects, cements for well drilling operations, cements containing silica fume or slag, pozzolan cements, and cements for road surfacing that incorporate slag and hydraulic binders.
- Cements for masonry and mortars for concrete blocks, tiles, rendering, stucco, etc.
These different types of cement can all be used to produce concretes with a variety of characteristics and properties.
Supplementary cementitious materials (SCMs) are minerals used in varying proportions during the last phase of the cement production process. SCMs makes it possible to obtain a range of cements with different properties. They can be:
- of natural origin, for example limestone or volcanic and sedimentary rock (pozzolanic rock),
- of industrial origin, for example, byproducts of the steel industry (slag from blast furnaces), the microchip industry (silica fume), and coal-fired power plants (fly ash).
The use of cementitious additives reduces CO2 emissions:
- firstly, because using additives in cement production automatically reduces the proportion of clinker (the decarbonation phase of clinker production releases a lot of CO2),
- secondly, it uses industrial waste which would otherwise have been discarded and treated by the local authority.
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