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Cement

Cement

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

Items

Unit

Guaranteed

Test methods

Chemicals requirements:

 

 

 

MgO

%

6% max

ASTM C114

SO3

%

3% max

ASTM C114

LOI

%

3% max

ASTM C114

IR

%

1.5% max

ASTM C114

Physical requirements:

 

 

 

Air content of Mortar

%

12% max

ASTM C185

Finess

m2/kg

280 min

ASTM C204

Autoclave expansion

%

0.8% max

ASTM C151

Compressive strength:

 

 

 

  • After 3 days

Mpa

12 min

ASTM C109

  • After 7 days

Mpa

28 min

ASTM C109

  • After 28 days

Mpa

-

ASTM C109

Setting time:

 

 

 

  • Initial setting time

Minutes

45minutes min

ASTM C191

  • Final setting time

Minutes

375minutes max

ASTM C191

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:

 

 

 

  • After 3 days

Mpa

13 min

ASTM C109

  • After 7 days

Mpa

25 min

 

Setting time:

 

 

 

  • Initial setting time

Minutes

45 minutes min

ASTM C191

  • Final setting time

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

 

 

ALWAYS BE READY AND KEEP TRUST

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