| you are: Inorganic knitting substances
In a point 3 curves quantitative change of temperature of roasting of raw materials (with 1000 to 1450°С) has led to spasmodic increase in durability and occurrence qualitatively new knitting - portlandtsementa. We will track change of the technical knitting. 123456
Air izvest does not possess hydraulic properties, its durability at compression after 28 sut tverdenija is insignificant - nearby 0,4 MPa.
Hydraulic izvest apply to manufacturing of building solutions, concrete of low marks and concrete stones. It store in the closed premises, by transportation protect from humidifying. 123456
Romantsement - the hydraulic knitting substance received by a high milling burnt not before sintering (900°С) calcareous or magnezialnyh mergelej, 20% of clay containing more. Formed at roasting nizkoosnovnye silicates and calcium aluminates give romantsementu property to harden and keep durability in water. Romantsement let out three marks: М25, М50 and Ml00. It should pass test for uniformity of change of volume. It is applied to manufacturing of building solutions, concrete, concrete stones. 123456
Portlandtsement in detail considered more low, possesses ability to harden and increase the durability in water, its marks М400, М500, М550 and М600 considerably surpass indicators of durability of all other knitting substances concerning given chemical system. 123456
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