|
Technical Support:
Ho Chi Minh Branch office:
Ha Noi Branch office:
PCB40 introduction:
PCB40 introduction [TCVN & our product specification, how to get the best masonry mortar, concrete]:
Vietnam Standard (TCVN) & Nghi Son PCB40 specification:
|
Criteria
|
TCVN
6260/1997
|
Nghi Son
PCB 40
|
|
Comprehensive strength (N/mm2)
|
3 days ± 45’
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≥ 18
|
28 ± 1.5
|
|
28 days ± 2h
|
≥ 40
|
50 ± 2.0
|
|
Setting time (min)
|
Initial
|
≥ 45
|
130 ± 15
|
|
Final
|
≤ 600
|
165 ± 15
|
|
Fineness
|
Residue 0,08mm
|
≤ 12
|
1
|
|
|
Specific surface (cm2/g)
|
≥ 2700
|
3600 ± 100
|
|
Soundness, Le Chaterlier test
|
mm
|
≤ 10
|
< 2
|
|
SO3
|
%
|
≤ 3.5
|
1.9 ± 0.1
|
|
MgO
|
%
|
≤ 10
|
1.0 ± 0.4
|
How to get the best masonry mortar with Nghi Son Cement PCB40:
|
Materials |
Mortar strength (kg/cm2) |
|
75 |
100 |
125 |
150 |
|
Cement (kg) |
220 |
315 |
345 |
380 |
|
Sand (m3) |
1.221 |
1.079 |
1.064 |
1.028 |
|
Water (litter) |
220 |
268 |
269 |
274 |
|
Application |
Masonry mortar |
Finishing works |
How to get the best concrete with Nghi Son Cement PCB40:
|
Materials |
Concrete strength (kg/cm2) |
|
200 |
250 |
300 |
350 |
|
Cement (kg) |
280 |
300 |
330 |
380 |
|
Sand (m3) |
0.547 |
0.538 |
0.522 |
0.507 |
|
Stone 1x2 (m3) |
0.750 |
0.748 |
0.746 |
0.740 |
|
Water (litter) |
190 |
190 |
190 |
190 |
Selecting the right concrete for different structural elements:
|
Structural element |
Concrete strength (kg/cm2) |
|
Foundation & Residential buildings |
200,250 |
|
Foundation & Industrial buildings |
200,250,300 |
|
Beam, Column & Slab of residential and industrial buildings |
200/250/300 |
|
Workshop, silo, water reservoir |
300,350,400 |
|
Pilling works |
250,300,350,400 |
|
Bridges, precast beams |
300,350,400,500 |
Selecting the right cement product for desired concrete:
|
Concrete strength |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
|
Cement product |
PCB 30 và PCB 40 |
PCB 40 |
|
