Pozzolanic cement

It is made by grinding some solidification regulator (gypsum) with Portland cement clinker and mineral additives (pozzuolana) defined at their standardized ratios (max. 55%). It is a product that gains its strength by freezing after it is mixed with water.

It gains strength later than Portland Cement 42.5 and Portland Composed Cement A 42.5 R. Water/cement ratio is relatively high. It is more resistant to alkali-aggregate reaction and chemical external effects. Generally it is used in the repairs of constructions, making plaster and production of construction chemicals.

Physical characteristics


	Analysis	Standard	Unit

Solidification Start/End	187	min. 75	Minute

Solidification End	223	--	Minute

Volume Expansion	1	max. 10	cm

Specific Surface (Blaine)	4660	--	cm²/g

Liter Weight	880	--	g/l

2-day Strength	15	min. 10	N/mm²

28-day Strength	40	min./max. 42.5/62.5	N/mm²

Chemical properties


	Analysis	Standard	Unit

SO3	3.4	max. 3.5	%

MgO	1.0	max. 5	%

SEMI FINISHED PRODUCTS

	Portland cement clinker
	Sulphate-resistant clinker
	Special type clinker
	Fly ash

CEM I

	Portland cement (OPC) 42.5-R
	Portland cement (OPC) 52.5-N
	Sulfate-resistant cement 42.5-R
	White portland cement 52.5-R

CEM II

	Composite cement A-M 42.5-R
	Composite cement B-M 32.5-R
	Composite cement B-M 42.5-N
	Fly ash cement B-V 32.5
	Slugged cement B-S 42.5-R
	Trass cement B-P 32.5-R

CEM III

Blast furnace slag cement

CEM IV

Pozzolanic cement B A-M 32.5-N

CEM V

Composite cement A 32.5-R

OTHER TYPES OF CEMENT

	Additive cement
	High early strength cement
	Portland limestone cement
	Portland silica fume cement
	Pozzolanic cement
	Plaster cement