portland cement price for export

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Product Description

(1)Grade:  portland cement42.5(china standard GB175-2007)


(2)Packing : 50kg PP Bag,then into 1MT,1.5MT,2MT sling bagj

                   1mt,2mt jumbo bag


(3)Quantity: 100,000mt per month


(4)Loading port: rizhao /qingdao/longkou, china


(5)Payment: by irrevocable Letter of Credit at sight or TT


(6)Shipment: within 30 days after the date of L/C .


(7)Inspection: by CIQ


Cement Specifications: Type 1 425

Chemical composition

Amount

ISIRI389

Amount

ISIRI389

Silicon dioxide %SiO2

20.5 – 21.5

---

Insotuble Residue %I.R

0.30 – 0.50

<0.75

Aluminium Oxide %AL2O3

4.2 – 5.6

---

Free Lime %Free CaO

0.80 – 1.70

---

Ferric Oxide %Fe2O

3.00 – 3.60

---

Lime Saturation Factor LSF

93.0 – 95.0

---

Calcium Oxide %CaO

64.0 – 66.50

---

Silica Module SLM

2.30 – 2.50

---

Mangnesium Oxide %MgO

1.0 – 2.7

<5.0

Alomina Moddule ALM

1.1 – 1.3

---

Sulphur Trioxide %SO3

1.5 – 2.3

<3.0

Tricalcium Silicate %C3S

56.0 – 62.0

---

Potassium Oxide %K2O

0.60 – 0.75

---

Dicalcium Silicate %C2S

14.0 – 18.0

---

Sodium Oxide %Na2O

0.45 – 0.65

---

Tricalcium Aluminate %C3A

8.05 – 8.50

---

Loss On Ignition %L.O.I

0.90 – 1.60

<3.0

Tetracalicium Aluminoferri %C4AF

9.0 – 11.0

---

Physical Test

Unit

Amount

ISIRI389

Blaine Test

(Cm2/gr)

3200 -3400

>2800

Autoclave Expansion

(%)

0.09 - 0.20

<0.8

Setting Time:

Initial

(Minute)

105 - 160

>45

Final

(Minute)

135 - 300

<360

Compressive Strength:

After 3 Days

(Kg/Cm2)

230 - 260

>100

After 28 Days

(Kg/Cm2)

420 - 440

>425

Remarks:

LSF = 100 CaO/(2.80 SiO2 + 0.65Fe2O3 + 1.18Al2O3)

C3S = 4.07 CaO - (7.6 SiO2 + 6.718 Al2O3+ 1.43 Fe2O3 + 2.852SO3)

C2S = 2.867SiO2 - 0.754C3S

C3A=2.65 Al2O3 - 1.692 Fe2O3

C4AF = 3.043 Fe2O3



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Q:I can not remove old cement board what do i do?
Sure - you could do a hole-patching with thinset - you might put in a little fiberglass mesh too. I can't imagine why that wouldn't work just fine.
Q:what means by special cement ? Example ? website ?
*Special Cements: It is used for a special application and are having special additives like some minerals. Example: 1.Rapid-setting High-strength Sulphoaluminate Cement, 2.Aluminate Cement, 3.White Cement 4.Special Inorganic Cements. 5.Anti acid cement (acid resistant cement) *** Polymethylmethacrylate (PMMA), has been used to reconstruct bone during surgery for at least 20 years.
Q:What is the use of using oxygen in cement industry?
The ingrediants for the cement need to be heated to a very high temperature to make Portland cement. Usually methane with air is the heat source, but oxygen replacing some of the air is sometimes needed to reach the optimum temperature. Possibly a superior cement is produced if it has negligible nitrogen, argon and carbon dioxide, so oxygen is used instead of air which contains nitrogen, argon and carbon dioxide as well as oxygen.
Q:Can a railing be added to cement stairs?
A definite yes. You can even find a carpenter in your area to do the railings. Or if you prefer iron, there are plenty of people who do that too. Google stair railings and you will find something you like to give you some ideas about type and price.
Q:Is cement poisoness? Flammable? Explosive? Corrosive?
As someone who manages hazardous waste shipments. It is not considered flammable, or explosive. It I considered poisonous Because it contains silica
Q:How does cement set? Don't say Just add water!?
Concrete has chemical fixers added to it that allow it to dry -- even under water. Or else those bridge anchors could never happen
Q:what is plastic cement? does it contain asbestos?
Polystyrene Plastic cement is an adhesive used for joining polystyrene parts. The cement contains a solvent that melts the surface of the plastic, allowing the two parts to fuse together. As the solvent evaporates the strength returns to the material, the components having been 'welded' together. As with the asbestos stuff, I don't think the new batches of gun pestic cement has any. The last I know of were supplies that were manifactured before 1991 by subsidiaries of a certain company. These ones contained asbestos. I don't think they do anymore. It has been rectifed. Plastic cement is available as both gel (tube or gun form) and liquid (bottle with applicator).
Q:BRACES!! Cement on my molars so brackets won't touch?
the cement on the molars acts as a bite block so that your teeth dont touch eachother.this will help to put the brackets and faster movement of teeth will take place as the upper and lower teeth dont touch each other. once the initial alignment of teeth is done in 8-10 weeks,the cement will be removed. till then take soft diet like soup,noodles,pasta,milk,juices etc. pain will go away in 3-4 days time.
Q:What does band and cement mean when an orthodontist uses the term?
a band: a metal ring that goes around your back molars and ancors the entire braces system. It takes some cement to keep that thing on your teeth, and so the cement could only be referring to getting your bands on, but most likely, yes, you will be getting your braces on! They use cement to keep your brackets on the front of your teeth. Getting braces on doesn't hurt at all, it's just a REALLY LONG process and theres a lot of keeping your mouth open! bring a new movie on your ipod if they don't provide videos at your ortho.
Q:Can I die from inhaling rubber cement for 1-2 minutes.?
Why on earth would you want to inhale Elmer's rubber cement, that's something beyond dangerous and not at all healthy you can get really sick or worst died from that, either way what's done is done but to be on the safe side you should go to the doctor and get yourself check out to make sure that the chemical in Elmer's rubber cement didn't affect you in anyway. I would hope everything is good with you inside, take care

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