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Inspection of cement, clinker

Cement is a hydraulic binder formed by fine grinding of clinker, natural gypsum and additives. When in contact with water, hydration reactions occur and form a lake called cement paste. Then, due to the formation of hydration products, the cement paste begins a setting process followed by a hardening process to finally obtain a material with a certain strength and stability.

In the field of construction, cement is a raw material that makes up the quality of construction works, so the quality of cement is an important factor in the selection of materials for construction. build.

To help you control the quality of cement, ITVC Global proposes a package of cement inspection services, specifically as follows:

Scope of work:

At the factory:

- Pre-shipment inspection: Sampling, sample analysis (for cement/clinker quality), weight assessment of goods loaded onto barges

At the side of the ship:

- Inspecting the volume of cargo transported on the barge at the side of the ship

- Counting the number of jumbo bags (for bulk cement)

- Take samples for moisture analysis

- Assessing the volume of goods loaded on board by the method of surveying the ship's draft

Table of test criteria for cement quality:

Code

Product - Characteristic

Test method

Time day (s)

Note

 

Quantity:
Under 2 characteristics: 5 kg
Over 2 characteristics: 20 kg

 

 

 

 

PHYSICAL ANALYSIS

 

 

 

1

Length change exposed to sulfate solution  

ASTM C 1012 - 04         
TCVN 7713 : 2007                       

7, 14, 21,
28, 56, 91,
105,120,
180 age

 

2

Potential expansion exposed to sulfate        

ASTM C45206                  
TCVN 6068 : 2004

14 age

Not include free of SO3 content test

3

Drying shrinkage                    

ASTM C 596 - 07

32

 

4

Normal consistency /water requirement 

ASTM C 187 - 05
BS EN 196.3 - 2005
TCVN 6017 : 1995

5

 

5

Early stiffening  

ASTM C 451 - 08

3

 

6

Fineness test (Retained content on 0.08 mm sieve)

TCVN 4030 : 2003

3

 

7

Fineness test (Retained content on 0.045 mm sieve)  

ASTM C 430 - 08

3

 

8

Le chatelier soundness             

BS EN 196.3 -2005 
TCVN 6017 : 1995
ISO 9597-08

3

 

9

Compressive strength

ASTM C 109 -08                       
ASTM C 349 - 08

3, 7, 28

 

10

Compressive strength  

BS EN 196.1 - 2005                         

3, 7, 28

 

11

Compressive strength

TCVN 6016 : 1995
ISO 679 - 09

3, 7, 28

 

12

Flexural strength      

ASTM C 348 - 08

3, 7, 28

 

13

Flexural strength  

BS EN 196.1 - 2005                
TCVN 6016 : 1995
ISO 679 - 09

3, 7, 28

 

14

Mass density                    

ASTM C 188 - 03                        
BS EN 196.6 - 1992
TCVN 4030 : 2003

5

 

15

Air content  

ASTM C 185 - 02

5

 

16

Setting time                  

ASTM C 191 - 01a                     
BS EN 196.3 - 1994
TCVN 6017 : 1995

3

 

17

Expansion stored in water      

ASTM C 1038 - 04

14 age

 

18

Insoluble residue content  

TCVN 141 : 1998                 
ASTM C 114 - 09

4

 

19

Fineness Blaine (**)

BS EN 196.4 - 1994
ASTM C204 - 07

4

 

20

Samples preparing ( clinker samples crushed  )

 

3

 

21

Moisures content of clinker

Ref ASTM C 566 - 04                       
BS 812 : 1990 Part 109

3

 

22

Particle-size of clinker

Ref ASTM C136 - 01

3

 

 

CHEMICAL ANALYSIS

 

 

 

23

SiO2, Al2O3, CaO, MgO, Fe2O3, K2O, SO3, NA2O, Cl-

P2O5, TiO2, Water soluble Cr(VI), SO3, IR, LOI

TCVN 141 : 1998                                           
ASTM C 114 – 11b

BS EN 196-2

BS EN 196-10

 

4

 

24

Free CaO Content

TCVN 141 : 1998                
ASTM C 114 – 09

BS EN 196-2

4

 

25

C3A, C3S, C4AF, C2S

ASTM C 150 -09

Bogue

4

Not charge if client analysis for related chemicals.

 

26

LSF

Calculated 

4

 

To request services inspection of cement, clinker- Contact ITVC Global to receive useful advice and best service.

ITVC GLOBAL COMPANY LIMITED

6th Floor Commercial Building, No. 22 Ly Tu Trong Street, Minh Khai Ward, Hong Bang District, Hai Phong

Tel: 02253 261 208 - Hotline: 0914 564 579

Fax: 02253 292 718

Email: itvc.haiphong@itvc-global.com

 



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