Cement and Stone

No

Name of target

Unit

Follow TCVN

6067:2004

Follow ASTM C 150-05

Fllow BS 4027:1996

PC­­_SR30

PC­­_SR40

Type V

32.5N

42.5N

1

Compressive strength limited

After 2 days

After 3 days

After 7 days

After 28 days

N/mm²

-

≥ 12

-

≥ 30

-

≥ 16

-

≥ 40

-

≥ 8

≥ 15

≥ 21

-

-

≥ 16

≥ 32.5

≥ 10

-

-

≥ 42.5

2

Finely ground

- Rest on the sieve 0,08 mm

- Surface determined by the method Blaine

%

Cm²/g

≤ 12

≥ 2800

≤ 10

≥ 3000

≥ 2800

3

Time of agglomerated

- Start

- Finish

Minutes

≥ 45

≤ 375

≥ 45

≤ 375

≥ 60

4

volume stability by Le Chatelier

Mm

≤ 10

≤ 10

5

MKN

%

≤ 3

≤ 3

≤ 3

6

MgO

%

≤ 5

≤ 6

-

7

SO₃

%

≤ 2.5

≤ 2.3

≤ 2.5

8

C₃A

%

≤ 3.5

≤ 5

≤ 3.5

9

C₄AF+2C₃A

%

≤ 25

≤ 25

-

10

Residue Insoluble

%

≤ 1

≤ 0.75

≤ 1.5

11

Swelling sulfate in 14 days

%

≤ 0.04

≤ 0.04^A

-

12

Na₂O+0,658K₂O

%

0.6

0.6^A

0.6

13

Clo

%

-

-

≤ 0.1

Hole sieve size (mm)

Volume of rest on sieve, % volume,

size of min and max

Kind of stone

: 5 ÷ 10

Kind of stone

: 10 ÷ 20

Kind of stone

 20 ÷ 40

5

≥ 90

-

-

10

≤ 5

≥ 90

-

20

-

≤ 5

≥ 90

40

-

-

≤ 5