The primary use of calcite lies in construction materials, particularly as a raw material for manufacturing cement and lime. It can produce calcium oxide (CaO) after calcination, which is one of the key components of cement clinker.

A world built by cement

Calcite is very important for construction

The role of calcite in cement production

1. Controlling cement composition and loss on ignition

2, Al2O3, Fe2O3, and MgO to control the composition and loss on ignition of cement.

2. Enhancing cement setting performance

3. Maintaining Stability and Energy Efficiency

4. Acting as a Fluxing Agent

How is calcite used in cement production? (Calcium carbonate processing plant)

Here is an overview of cement manufacturing:

Based on the actual situation, FTM Machinerys engineers have customized the following equipment for their cement production:Crusher

Phase one: raw material grinding

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Crusher

Phase Two: clinker calcination

Phase three: cement grinding

Phase four: cement packaging

Sustainability practices

Seven factors affecting cement quality

    Raw materials and clinker: The proportions of raw materials (limestone and clay) and the four main minerals in clinker (tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite) determine the curing speed and strength of cement.
  • Production process: The calcination temperature and duration during production determine the quality of clinker; higher grinding fineness results in higher early strength of cement.
  • Gypsum dosage: Added as a retarder to cement, its quantity needs precise control. Excess or insufficient amounts can affect cements setting time and final strength.
  • Water-cement ratio: Excessive water-cement ratio leads to decreased strength and crack formation; too low may affect construction workability.
  • Admixtures and additives: Fly ash, slag, and various additives (such as accelerators, grinding aids) must be carefully selected and controlled to avoid adverse effects on cement quality.
  • Storage conditions: Cement should avoid moisture and expiration, as dampness triggers premature hydration, reducing its effective components, while expired cement loses activity, impacting strength.
  • Environmental factors: Low temperatures during construction delay the curing process, while high temperatures may lead to rapid water loss, affecting the quality of cement curing.