Certificate of quality (III) Portland cement (pc 40) or en 197-1: 2000/cem I 42. 5N/R

Tiªu chuÈn ¸p dông/Standard : TCVN 2682:2009

Sè l«/Lot number : T^pc2/12

Ngµy s¶n xuÊt/Date of production : 11-15/12/2012

Ngµy thö nghiÖm/Date of testing : 17/12/2012

TT	tªn chØ tiªu (Characteristics)	§VT (Unit)	Yªu cÇu theo (requirements in accordance with)	Ph­¬ng ph¸p thö (test method)	kÕt qu¶ thö (results)
1	MgO	%	≤ 5,0	TCVN 141-2008	1,73
2	SO3	%	≤ 3,5	TCVN 141-2008	2,91
3	KiÒm quy ®æi (Alkalies) Na2Ot®	%	Kh«ng quy ®Þnh	TCVN 141-2008	...
4	Loss on Ignition, (LOI)	%	≤ 3,0	TCVN 141-2008	1,15
5	Insoluble Residue (IR)	%	≤ 1,6	TCVN 141-2008	0,72
6	BÒ mÆt riªng (Specific surface)	cm2/g	≥2800	TCVN 4030-2003	3301
7	C­êng ®é chÞu nÐn (compressive strength) - 03 ngµy (3 days) - 28 ngµy (28 days)	MPa	≥ 21 ≥ 40	TCVN 6016-2001	31,2 58,5
8	§é nghiÒn mÞn (Fineness) PhÇn cßn l¹i trªn sµng 0.09mm	%	≤ 10	TCVN 4030-2003	2,80
9	Thêi gian ®«ng kÕt (Setting time) - B¾t ®Çu ( Initial Setting Time) - KÕt thóc (Final Setting Time)	Phót/min	≥ 45 ≤ 375	TCVN 6017-1995	140 200
10	§é dÎo tiªu chuÈn (Standard plasticity)	%	Kh«ng quy ®Þnh	TCVN 6017-1995	26,80
11	§é æn ®Þnh thÓ tÝch Le Chartelier (Soudness)	mm	≤ 10	TCVN 6017-1995	1,00
12	Hµm l­îng Clo/Chloride conten	%	-	TCVN 141-2008	0,002
13	§é në ch­ng hÊp/Autoclave expansion	%	≤ 8,0	TCVN 8877-2011	0,42

Ghi chó/Note: The remaining indicators are rechecked cement quality PC 40 according to the TCVN 6282:2009 similar ASTM similar EN 197-1:2000/CEM I.