PORTLAND CEMENT CEM I 42.5 R

PORTLAND CEMENT  CEM I  42.5 R

A hydraulic cement produced by milling Portland cement clinker (TS 3441) together with gypsum. It is classified as PC 42.5, and PC 52.5. "PC" is the symbol for Portland cement while the numbers 42.5, 52.5 indicate the minimum desired strength value achieved within 28 days.

Produced in compliance with TS 19 (Turkish), EN 197-1 (British) and (American) standards. The quality is also in compliance with Russian standards and the factory has the certificate enabling us to export to Russia.

It is generally used in works requiring high strength values, concrete works performed at low temperatures, precast buildings, tunnel-form applications, building chemical maunfacturing and foundations.

• General purpose
• All kinds of concrete structures
• High Buildings
• Road pavements
• Sidewalk Concretes
• Ground concretes
• Buildings made up with slide-molds
• General purpose prefabricated concrete components
• Bridges
• Railway Slippers
• Art Works (viaducts, sub-passageways, upper passageways)
• Water Storages
• Concrete Pipes
• Concrete Brickets
• Tunnel Mould Applications
• Pretensioning Concretes

Chemical analysis	Results (%)	Limit values
Silicon Oxide, % SiO2	19,37
Aluminium Oxide, % Al2O3	4,68
Iron Oxide, % Fe2O3	3,35
Calcium Oxide, % CaO	63,08
Magnesium Oxide, % MgO	1,42
Sulphur Oxide, % SO3	2,71	≤ 4,0%
Sodium Oxide, % Na2O	0,29
Potassium Oxide, % K2O	0,63
CI	0,0089	≤ 0,10%
Loss on Ignition % ( L.O.I)	3,28	≤ 5,0%
Insoluble Residue % (I.R)	0,33	≤ 5,0%
Free lime	0,73

Fiziksel analiz	Sonuçlar	Limit değerleri
İlk ayar zamanı (dakika)	155	≥ 60
Son Ayar Süresi (dakika)	250
Sağlamlık / Genişleme (mm)	1,0	≤ 10
Özel Yüzey Alanı Blaine (cm 2 / g)	3275
2 gün - Basınç Dayanımı (MPa)	24,0	≥ 20
7 gün - Basınç Dayanımı (MPa)	39,2
28 gün - Basınç Dayanımı (MPa)	52,6	≥ 42,5; ,5 62,5