grey ordinary portland cement 42.5 - portland cement 42.5

grey ordinary portland cement 42.5, 1.steady and high abrasion resistance, 2.low fluctuate,good strength grade, 3.GB175-2007 - details see: https://www.buildingsupplieshub.com/grey-ordinary-portland-cement-42-5-10083548

Place of Origin: Shandong China (Mainland)	Brand Name: Portland Cement	Model Number: portland cement 42.5	Color: Grey
Feature: Radiation-Resistant	Main Raw Material: Silicate	Type: Silicate Cement / Portland Cement,Ordinary Portland Cement 42.5	Hardening Feature: Rapid Hardening
Heat of Hydration: Low-Heat	Strength Grade(Mpa): 42.5

grey ordinary portland cement 42.5

1.Product range:P.C32.5, P.C.32.5R, P.O42.5, P.O.42.5R, P.S.A42.5, P.O52.5, P.O52.5R, P.I52.5, P.I52.5R, P.S.A32.5 Ordinary Portland cement

2.Standard: In compliance to the national standards (GB175-2007)

3.Packing:

a)2MT jumbo bag

b)50kg per bag then 40 bags into a 2MT sling bag

C)50kg bag

The typical performance during using:

1. Steady and high quality, low fluctuate, and rich in strength grade.

2. Good workability and adaptability with additives.

3. Long term steady in color, wide used in the construction of modest color building.

4. Low bleeding, be applicable to produce concrete.

5. Freeze-proof, abrasion resistance.

6. Steady solidity ratio, the volumetric shrinkage basically reach to balance at one-year age, up to the high standard of international and domestic.

7. Meanwhile, its low slump loss meets the need of the long distance delivery of concrete-mixer.

Attention:

1. Pay attention to store, and avoid moisture.

2. Cannot mix different type cement together.

3. To select certain type and grade cement reasonablly.

4. Stick to pre-testing of concrete.

5. To carry out specility testing, work out the best mix ratio.

The Standard of Our Ordinary Portland Cement according to GB-175-2007
Items	Request	Unit	42.5	42.5R	Creatier Cement Test Results	Request	Unit	32.5	32.5R
Magnesium oxide(MgO)	≤	%	5.0	5.0	2.15	≤	%	5.0	5.0
Sulphur trioxide(SO3)	≤	%	3.5	3.5	3.10	≤	%	3.5	3.5
Loss of ignition(LOI)	≤	%	5.0	5.0	2.20	≤	%	5.0	5.0
Chlorine ion	≤	%	0.06	0.06	0.02
Fineness(specific Surface)	≥		300m2/kg	30m2/kg		≤	%	10.0	10.0
Alkalies(Na2O+0.658K2O)	≤		0.6%or by negotiation	0.6%or by negotiation				qualify	qualify
Soundness	boiling process		qualify
Initial setting time	≥		45	45	229	≥	Min	45	45
Final setting time	≤	Min	600	600	316	≤	Min	600	600
Bend strength 3days	≥	Min	3.5	4.0	5.3	≥	Mpa	2.5	3.5
Bend strength 28days	≥	Mpa	6.5	6.5	7.5	≥	Mpa	5.5	5.5
Compressive strength 3days	≥	Mpa	17.0	22.0	23.5	≥	Mpa	11.0	16.0
Compressive strength 28days	≥	Mpa	42.5	42.5	45.8	≥	Mpa	32.5	32.5