Sungshin CM Co., Ltd.

ENG

Introduction of products

Production Capacity

We produce and supply blast-furnace slag cement suitable for customers' quality requirements in Sinpyeong-myeon, Dangjin-gun, Chungcheongnam-do in order to preserve the global environment, save resources and energy, and increase the durability of concrete.

Types and characteristics of blast-furnace slag cement

The blast-furnace slag cement is produced under strict quality control in accordance with Korean Industrial Standards (KS FL 5210).
Types
Characteristics
  • - Excellent workability
  • - Reduction of hydration heat
  • - Densification of the internal structure
  • - Enhancement of long-term strength
  • - Improvement of durability
  • - Excellent economic feasibility
Main uses
General construction and civil engineering work
Coastal structure construction
Dam construction
Pulverization

Chemical components of blast-furnace slag cement (KS L 5210)

Chemical component Type 1 Type 2 Type 3
Anhydrous Sulfuric Acid(SO3) % 3.5 or less 4.0 or less 4.5 or less
Magnesium Oxide(MgO) % 5.0 or less 6.0 or less 6.0 or less
Ignition loss % 3.0 or less 3.0 or less 3.0 or less

Physical performance of blast-furnace slag cement (KS L 5210)

Item Type 1 Type 2 Type 3
Fineness Specific surface area(blaine) cm²/g 3.000 or higher 3.000 or higher 3.300 or higher
Stability Autoclave expansion % 0.2 or less 0.2 or less 0.2 or less
Lechatelier(mm) 10 or less 10 or less 10 or less
Setting time Vicat test Initial setting Minutes 45 or higher 60 or higher 60 or higher
Final setting Hours 7 or less 10 or less 10 or less
Compressive strength MPa (N/mm²) 3 days 12.5 or higher 10.0 or higher 7.5 or higher
7 days 22.5 or higher 17.5 or higher 15.0 or higher
28 days 42.5 or higher 42.5 or higher 40.0 or higher
* According to the demand of consumers, one of the autoclave expansion test and the Le Chatelier test should be selected and performed as a stability test method.

Advantages of blast-furnace slag cement

  • - Great inhibitory effect on alkali-aggregate reaction
  • - Effect of reduction in unit water content and slump loss
  • - High magnetic strength
  • - Great water-tightness
  • - Increased resistance to sea water
  • - Great chemical resistance
  • - Low heat of hydration

Status of Certificates from External Certificate Authorities

2010. 09. 08

KS Certificate (KS L 5210): 2-type ground granulated blast-furnace slag

2022. 08

GR F 4003 Certificate (Recycled Concrete Using Blast-Furnace Slag Cement)