Grey Ordinary Portland Cement from China

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Product Description:

Specification of Cement

No


Detail


result

I

Chemical test

1

Loss on Ignition

%

2.0 ÷ 4.0

2

Insoluble Residue

%

0.3 ÷ 2.5

3

SiO2

%

19.0 ÷ 22.0

4

Al2O3

%

4.0 ÷ 6.0

5

Fe2O3

%

2.5 ÷ 3.5

6

CaO

%

61.0 ÷ 67.0

7

MgO

%

1.0÷ 4.0

8

SO3

%

1.6÷ 2.2

9

Free lime

%

0.3 ÷ 1.5

10

Toltal alkali, (Max)

%

0.75

11

(C3S + C2S), (Min)

%

54.0

12

C3A, (Max)

%

2.5 ÷ 3.5

14

C4AF, (Max)

%

7 ÷ 11

15

False Set, (Min)

%

50

16

Chloride, (Min)

%

0.1

II

Physiscal test

9 ÷ 11

1

Fineness Blaine, ( Min)

cm2/g

3400

2

Soundness: Lecateller test, ( Max)

mm

5

3

Air content or mortar

%

5 ÷ 10

4

Autoclave Expansion

0.03 ¸ 0.20

5

Setting time, (Vicat test)

Initial,

Final,

min

110 ¸ 160

200 ÷ 300

6

Compressive Strength

3 days, (Min)

7 days, (Min)

28 days, (Min)

psi

2320

3480

5220



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Q:How is cement made and what is in it?
Let's work backwards... CONCRETE is Cement, water, sand and aggregate (gravel or rock). When the water is added to the cement, sand and rock, it forms a chemical bond that turns it into concrete. It does not dry but rather cures. You can pour concrete under water. Mortar is cement, sand and water. No rock. It is used to bind brick together. So, Cement is the common item. Cement (also called Portland Cement - that name comes from it being similar to stone that comes from the Isle of Portland, in Dorset, England ) is made by heating LIMESTONE in a kiln, the result - called KLINKER - is then ground into a fine powder and some Gypsum is added. That is than bagged as Cement.
Q:What drill should I use for cement?
The previous answers are correct. Rent a good SDS bit hammer drill and it will drill your concrete as easy as sticking your finger in butter. You'll drill all those holes so fast you won't believe it. Those masonry bits used with a regular rotary drill are only good for drilling mortar joints or soft brick. As you already discovered, they are just not adequate for concrete. Actually, if you do a lot of your own work, a residential grade 120 volt DeWalt hammer drill is not that expensive and a handy thing to own. I have one myself -- it can be used on rotary or hammer settings.
Q:What is the difference between cement and concrete?
When cement dries, it's called concrete.
Q:does anyone any one knows what cement was used for?
Cement is a kind of light grey powder used in building houses, sidewalks, making building blocks, culverts and in some countries it' used to make roads. It's mixed with water using a shovel or it's mixed in a mixing truck if you need a large amount. Gravel, sand and the cement is all mixed together. There are also some type of glue that people call cement. Hope this helps.
Q:A cubic meter of concrete mix contains 420kilograms of cement,150 kg of stone and 120 kg of sand.?
150 Kg To Stone
Q:why can't the philippine government do anything about the cement cartel?
the word cartel is not only limited to the cement industry. controlling any business operations/industry in the Phils is way too common. how's this; illegal drugs either supply, distribution and production gambling any forms rice sugar coconut hiring of overseas workers the so called smoke belching testing the so called drug testing for driver's license application you name it the Phils have it. group of people have master the art of controlling businesses apparently these cartels are HUGE fund supporters for any politicians seeking public office. Now how will this end? don't know! God save the Phils! G'Day
Q:Where can I buy cement and what are the prices.?
most hardware stores carry it...either as bags of portland cement or premixed bags of concrete...for amounts up to a cubic yard you might get by using premixed if you have enough help mixing and placing so you dont get any cold joints...for pours more than a cu. yd. you should get a truck in and eat the extra trucking charge because you will probably not be able to mix and place it fast enough...
Q:What is/Was Water Putty and Portland cement used for/are?
The British give this name to modern day cement. Ordinary Portland cement,sulphate resistant cement, white cement and Grey cement and so on. Most have chemical name but Portland is a patent name.
Q:important characteristics of quality cement?
depends on what purpose you require the cement for.. slump test determines the workability (should be) there is also the cube test to test the strength of concrete. when your talking about cement i assume the cement powder right? There are many many test, depending on which aspect you want to test, and wheter you want a destructive or non-destructive test. you can email me if you want to know more.
Q:i wrote a poem titled 'wet cement' please rate from 1-10 :)?
wow! that was great! i'd give it a 7 though i dont like the ending so much maybe elongate it? other than that it was very cute!

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