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Description

 CEMENT STANDARD

 1.Thailand standard (TCVN)

- Quality of Cement as per TCVN 6260 - 2009

2. European standards (EN)

- Certificate I -EN 197-1.2000- CEM II 42,5 R

- Certificate II - En 197-1.2000 CEM II 42,5N

- Certificate III - EN 197-1.2000 CEM I 42,5R

 3. American standards (ASTM)

- ASTM C150 TYPE-1

- ASTM C1157 TYPE- GU

- ASTM C1157 TYPE- HE

SPECIFICATIONS FOR ORIDINARY PORTLAND CEMENT AS PER EN 197-1:2011/CEM I 42.5
Items	CHARACTERISTICS	Units	SPECIFICATION LIMIT	TEST RESULT	TEST METHODS
1	SiO2	%	≤ 26.00	23.41	EN 196-2
2	Al2O3	%	≤ 6.50	5.5
3	Fe2O3	%	≤ 4.50	3.6
4	CaO	%	≥ 54.00	57
5	MgO	%	≤ 5.00	2.75
6	SO3	%	≤ 3.5	2.56
7	Loss on Ignition, (LOI)	%	≤ 10.00	7.00
8	Insoluble Residue	%	≤ 12.00	6.00
	Physical and Mechanical Properties
	Finess test
1	Blaine	cm2/g	≥  3200	3800	EN 196-6
2	Retained content on sieve 75mm	%	< 15.0	0.1
	Time of setting
1	Initial set	Minutes	≥  75	145	EN 196-3
2	Final set	Minutes	< 420	200
3	Soundness (LeChatelier)	mm	< 10.0	1.0	EN 196-3
	Compressive strength
1	2 Days	MPa	≥ 20.0	23.0	EN 196-1
2	3 Days	MPa		27.0
3	7 Days	MPa		37.0
4	28 Days	MPa	≥  42.5	50.0