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thanhvien
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Date: 09/12/2013
Portland Cement Blended PCB 40
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Portland Cement Blended PCB 40 under TCVN 6260:2009 standard

conforms to EN 197-1:2000/ Cem II 42.5N Standard

 

ITEMS

UNIT

TEST METHOD

SPECIFICATIONS

CaO

%

EN 196-2

≥ 52.00

SiO2

%

≤ 27.0

Al2O3

%

≤ 6.5

Fe2O3

%

≤ 4.5

MgO

%

≤ 5.00

SO3

%

≤ 3.5

Loss of Ignition (LOI)

%

≤ 10.0

R20 = Na2O +0.65K2O

%

< 0.75

Insoluble Residue

%

≤ 12

Cl-

%

EN 196-21

≤ 0.10

Physical and Mechanical Properties

Finess  test

  - Blaine

  - Retained content on

    Sieve 45 µm

cm2/g

%

EN 196-6

 

 

≥ 3200

≤ 12.0

 

Setting of time

  - Initial set

  - Final set

Minutes

EN 196-3

≥ 75

< 420

Soundness ( LeChatelier)

mm

EN 196-3

< 10.0

Compressive strength

  - 2 days

  - 3 days

  - 7 days

  - 28 days

MPa

EN 196-1

≥ 10.0

-

-

≥ 42.5

 


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