Cement is a fine powder, obtained the calcination at 1,450°C of a mix of limestone, clay, and iron ore. The product of the calcination process is clinker—the main ingredient of cement—that is finely ground with gypsum and other chemical additives to produce cement.
Cement is the most widely used construction material worldwide
1. Export quantity:
- 2019: 60,000 MT
- 2020: 330,000 MT
- 2021: 350,000 MT
2. Domestic quantity: 500.000MT/year
Types of cement:
ANNEX I
SPECIFICATIONS OF ORDINARY PORTLAND CEMENT TYPE I AS PER ASTM C150
CONFORMING TO PNS 07: 2018
ANNEX II
SPECIFICATIONS OF BLENDED CEMENT TYPE IP AS PER ASTM C595
CONFORMING TO PNS 63: 2006
|
Items
|
Unit
|
Guaranteed
|
Test methods
|
|
Chemicals requirements:
|
|
|
|
|
MgO
|
%
|
5% max
|
ASTM C114
|
|
SO3
|
%
|
4% max
|
ASTM C114
|
|
LOI
|
%
|
8% max
|
ASTM C114
|
|
Physical requirements:
|
|
|
|
|
Air content of Mortar
|
%
|
12% max
|
ASTM C185
|
|
Finess
|
m2/kg
|
280 min
|
ASTM C204/C430
|
|
Autoclave expansion
|
%
|
0.5% max
|
ASTM C151
|
|
Autoclave contraction
|
%
|
0.2% max
|
ASTM C185
|
|
Compressive strength:
|
|
|
|
|
|
Mpa
|
13 min
|
ASTM C109
|
|
|
Mpa
|
25 min
|
|
|
Setting time:
|
|
|
|
|
|
Minutes
|
45 minutes min
|
ASTM C191
|
|
|
Minutes
|
420 minutes max
|
ASTM C191
|
|
Items
|
Units
|
Specification
|
Test Method
|
|
Compressive Strength
. 3 Days
. 28 Days
|
MPa
|
≥ 28.0Min
≥ 50.0Min
|
GB/T 17671
|
|
Time of settingvicat test
.Initial set
.Final set
|
Minutes
|
≥ 45Min
< 390Max
|
GB/T 1346
|
|
Flexural strength
. 3 Days
.28 Days
|
MPa
|
≥ 4.0Min
≥ 6.5Min
|
GB/T 17671
|
|
Specific surface
|
m2/kg
|
≥ 320Min
|
GB/T 8074
|
|
Free timeF.CAO
|
%
|
≤ 1.5 Max
|
|
|
Sulfate content SO3
|
%
|
≤ 3.5 Max
|
GB/T-176
|
|
Chloride content Cl-
|
%
|
≤ 0.06 Max
|
GB/T-176
|
|
Loss on Ignition LOI
|
%
|
≤ 5.0 Max
|
GB/T-176
|
|
MgO
|
%
|
≤ 4.0 Max
|
GB/T-176
|
|
Soundness Expansion
|
mm
|
≤ 5.0 Max
|
GB/T 1346
|
SPECIFICATION OF PORTLAND CEMENT CONFORMING TO CHINESE STANDARD GB 175-2007 CODE P.II GRADE 52.5R:
|
Items
|
Units
|
Requirements
|
Test Methods
|
|
I. Chemical properties
|
|
Loss on Ignition
|
%
|
Max 3.5
|
GB/T 176-2017
|
|
SO3
|
%
|
Max 3.5
|
|
MgO
|
%
|
Max 4.0
|
|
CL- Chloride content
|
%
|
Max 0.06
|
|
Free limes F.CaO
|
%
|
Max 1.5
|
|
II. Physical Properties
|
|
|
|
|
Blaine permeability Specific surface
|
m2/kg
|
Min 300
|
GB/T 8074:2008
|
|
Initial setting time
|
minute
|
Min 45
|
GB/T 1346:2011
|
|
Final setting time
|
minute
|
Max 390
|
|
|
|
Compressive strength-3 days
|
Mpa
|
Min 30.0
|
GB/T 17671-1999
ISO 679:1989
|
|
Flexural strength-3 days
|
Min 5.0
|
GB/T 17671-1999
|
|
Compressive strength-28 days
|
Mpa
|
Min 60.0
|
GB/T 17671-1999
ISO 679:1989
|
|
Flexural strength-28 days
|
Min 7.0
|
GB/T 17671-1999
|
3. Seaport:
- Hon Gai port – Vietnam
- Nghi Son port – Vietnam
- Bataan port – Philippines
- ILOILO , BATANGAS, BACOLOD, ... PHILIPPINES
