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: |
|
|
|
|
|
PHYSICAL ANALYSIS |
|
|
|
|
1 |
Length change exposed to sulfate solution |
ASTM C 1012 - 04 |
7, 14, 21, |
|
|
2 |
Potential expansion exposed to sulfate |
ASTM C45206 |
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 |
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 |
3 |
|
|
9 |
Compressive strength |
ASTM C 109 -08 |
3, 7, 28 |
|
|
10 |
Compressive strength |
BS EN 196.1 - 2005 |
3, 7, 28 |
|
|
11 |
Compressive strength |
TCVN 6016 : 1995 |
3, 7, 28 |
|
|
12 |
Flexural strength |
ASTM C 348 - 08 |
3, 7, 28 |
|
|
13 |
Flexural strength |
BS EN 196.1 - 2005 |
3, 7, 28 |
|
|
14 |
Mass density |
ASTM C 188 - 03 |
5 |
|
|
15 |
Air content |
ASTM C 185 - 02 |
5 |
|
|
16 |
Setting time |
ASTM C 191 - 01a |
3 |
|
|
17 |
Expansion stored in water |
ASTM C 1038 - 04 |
14 age |
|
|
18 |
Insoluble residue content |
TCVN 141 : 1998 |
4 |
|
|
19 |
Fineness Blaine (**) |
BS EN 196.4 - 1994 |
4 |
|
|
20 |
Samples preparing ( clinker samples crushed ) |
|
3 |
|
|
21 |
Moisures content of clinker |
Ref ASTM C 566 - 04 |
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 BS EN 196-2 BS EN 196-10
|
4 |
|
|
24 |
Free CaO Content |
TCVN 141 : 1998 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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