South African Portland Cement CEM I 42,5 R - GEISA

Portland cement ( OPC) is a hydraulic binder that reacts with water, produced clinker and natural gypsum as retarder. - details see: https://www.buildingsupplieshub.com/south-african-portland-cement-cem-i-42-5-r-10083546

Place of Origin: South Africa

Brand Name: GEISA

Model Number: GEISA

South African Portland Cement CEM I 42,5 R

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Portland cement ( OPC) is a hydraulic binder that reacts with water, produced clinker and natural gypsum as retarder.

Generally used in works requiring high strength values, dam and tunnel works, precast building, concrete works in low temperatures and building chemicals manufacturing.

Chemical Properties	Our Decleration	Standard	Unit
SiO2	20,05		%
Fe2O3	3,71		%
Al2o3	4,95		%
CaO	62,74		%
MgO	1,06	Max 5,0	%
SO3	2,68	Max 4,0	%
Loss On Ignition	2,33	Max 5,0	%
Insoluble Residue	0,56		%
Free Lime	0,95		%
Alkali Equivalent (Na2O type)	0,67		%
Total Addivite	3,83		%

Physical Properties	Our Decleration	Standard	Unit
Setting Time (Initial)	170	Min 60	minute
Setting Time (Final)	280	-	minute
Spesific Gravity	3,144	-	g/cm3
Expansion	1,0	Max 10	mm
Strenght for 2 days	27,0	Min 20	N/mm2
Strenght for 28 days	51,5	42,5-62,5	N/mm2