Công ty cổ phần xi măng Vicem Hà Tiên
Hotline:
18006069
(028) 39.15.16.17
Vicem Ha Tien Portland Cement PC40 is a fine powder mixture of various minerals. It is produced by mixing calcareous minerals such as limestone, clay containing silica and alumina and heating it to 1450 °C. When it cools, a clinker is formed. This clinker is then finely ground and mixed with a small quantity of 3-5% of gypsum, which has calcium sulfate in it. The amount of gypsum controls the physical properties of the eventual cement and concrete.
USES
Vicem Ha Tien Portland Cement PC40 is a general-purpose cement suitable for all uses, especially for industrial and civil constructions. This type of cement can be used to make concrete for bridges, culverts, reservoirs, reinforced concrete,...
ADVANTAGES
PACKING
STANDARDS
Vicem Ha Tien Portland Cement PC40 conforms to Vietnam standard TCVN 2682:2020 has physical and chemical properties as follows:
TCVN 2682:2020 - PC40
|
No.
|
Characteristic
|
Unit
|
Test method
|
Standard specification
|
Test result
|
|
Physical characteristic
|
|||||
|
1.
|
Độ mịn / Fineness test
|
|
TCVN 4030:2003
|
|
|
|
Lượng sót sàng / Residue on sieve 0.09mm
|
%
|
|
≤ 10
|
1.2
|
|
|
Bề mặt riêng / Specific surface (Blain method)
|
cm2/g
|
|
≥ 2800
|
3820
|
|
|
2.
|
Thời gian ninh kết/ Time of setting
|
|
TCVN 6017:2015
|
|
|
|
Bắt đầu / Initial set
|
minute
|
|
≥ 45
|
140
|
|
|
Kết thúc / Final set
|
minute
|
|
≤ 375
|
195
|
|
|
3.
|
Cường độ xi măng / Compressive strength
|
N/mm2
|
TCVN 6016:2011
|
|
|
|
3 ngày / 3 days
|
|
|
≥ 21
|
31.5
|
|
|
28 ngày / 28 days
|
|
|
≥ 40
|
52.5
|
|
|
4.
|
Độ ổn định thể tích / Soundness (Lechatelier method)
|
mm
|
TCVN 6017: 2015
|
≤ 10
|
0.5
|
|
5.
|
Khối lượng riêng / Mass Density
|
g/cm3
|
TCVN 4030:2003
|
|
3.10
|
|
Chemical characteristic
|
|||||
|
6.
|
Hàm lượng SO3 / Sulfur trioxide content
|
%
|
TCVN 141 : 2008
|
≤ 3.5
|
2.08
|
|
7.
|
Hàm lượng cặn không tan / Insoluble residue
|
%
|
TCVN 141 : 2008
|
≤ 1.5
|
0.63
|
|
8.
|
Hàm lượng mất khi nung / Loss on ignition
|
%
|
TCVN 141 : 2008
|
≤ 3.0
|
1.25
|
|
9.
|
Hàm lượng MgO / Magnesium oxide content
|
%
|
TCVN 141 : 2008
|
≤ 5.0
|
2.07
|
|
10.
|
Na2O + 0.65K2O / Equivalent akalies
|
%
|
|
≤ 0.6
|
0.42
|
