Mineral products

ceman (1)

Portland Cement type 1

Portland cement type 1-42.5:

Because of its advance resistivity, this type of cement is one of the most popular cements in the world. It can be used for normal constructions which have no limitation of environmental conditions (e.g. water, sand and …). But, because of high temperature of hydration, the usage of the cement type 1-42.5 is not suggested for warm area. There is also limitation of using this type of cement for gypseous lands or those affected by sea water, because of low strength against
sulfate attacks. In spite of the mentioned limitation

Portland Cement type 2

The composition of cements Type 2 (which is also known as Modified Portland cement) is in a way that compared to Portland cement type 1, has lower temperature when mixed with water (which usually reduces the strength of the concrete) and furthermore, it has increased strength against the damaging sulfate environmental (gypseous lands and those affected by sea water).

Pozzolanic Portland cement

As a result of combining up to 15 percent pozzolan (a material that contain active silica) with cement in the abrasion stage, the pozzolanic silica turns the useless materials (which are a cause of weakening the concrete’s strength) into useful materials with high sticking ability, when mixing the cement with water. It will also decrease the heat created as the result of mixing the cement with water (this heat reduces the strength of the concrete).
Therefore, since the hydration temperature must be low in building constructions, because of the high volume of concretes, or there is a high risk of erosion of concrete because of the proximity of sea water, using the pozzolanic cement for increasing the strength of the concrete is highly advised. However, as the initial strength of this kind of cement is lower than other type of cements and also the expansion time is higher than normal cements, it shouldn’t be used for projects which require fast strength and expansion.

Clinker

In the manufacture of Portland cement, clinker occurs as lumps or nodules, usually 3 millimetres (0.12 in) to 25 millimetres (0.98 in) in diameter, produced by sintering (fused together without melting to the point of liquefaction) limestone and alumino-silicate materials such as clay during the cement kiln stage.
We can provide Cement Clinker grade 42,5 according to your analysis  as you are looking for from Iran.