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About the characteristics and benefits of blast furnace crushed slag used in colored sand.

Introducing technical information about permeable blast furnace slag pavement "Color Sand"!

This explains the characteristics and benefits of the blast furnace crushed slag used in "permeable blast furnace slag pavement (colored sand)." The "blast furnace crushed slag" used as aggregate in our paving materials is a byproduct generated simultaneously when producing pig iron from a blast furnace at major steel manufacturers. It can be easily separated as it floats on top of the molten pig iron. In addition to contributing to the reduction of environmental impact, it has characteristics such as excellent gradation balance due to its uniform particle size. Further explanations on topics such as "What is steel slag?" and "Characteristics and general applications of blast furnace slag" can be found through external links. 【Introduction of Technical Information】 ■ What is "steel slag"? ■ Characteristics and general applications of "blast furnace slag" ■ Reasons for adopting "blast furnace crushed slag" - Reduction of environmental impact, porous shape, latent hydraulicity, high internal friction angle, uniform particle size, safety *For more details, please refer to the PDF materials or external link pages, or feel free to contact us.

  • Paving Materials
  • Exterior and paving materials <General>
  • Paving of sidewalks, roads, parking lots and stadiums

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Technical basis for the permeability coefficient of permeable paving material "Color Sand"

Introducing technical information about permeable blast furnace slag pavement "Color Sand"!

This document explains the technical basis for the permeability coefficient in "permeable blast furnace slag pavement (colored sand)." Our paving material uses granulated blast furnace slag as a raw material, which falls under the classification of sand and gravel. Therefore, we conducted a "constant water level permeability test" to measure the permeability coefficient. The result of the constant water level permeability test showed a measured value of 2.56×0.01 cm/sec. Thus, the required permeability coefficient for the sidewalk area in terms of "permeability" is a public standard value of 1.0×0.01 cm/sec. Our measured value exceeds this standard by more than double, proving that our permeable paving material sufficiently meets the required permeability performance for the sidewalk area. [Overview] ■ The permeability coefficient was measured in accordance with the "Soil Permeability Testing Method" based on JISA1218. - Constant water level permeability test: Applicable to soils with relatively high permeability coefficients (sand and gravel). - Variable water level permeability test: Applicable to soils with relatively low permeability coefficients (clay, silt, etc.). ◎ Exceeds the standard value and sufficiently meets the required permeability performance for the sidewalk area. *For more details, please refer to the PDF materials or external link pages, or feel free to contact us.

  • Paving Materials
  • Exterior and paving materials <General>
  • Paving of sidewalks, roads, parking lots and stadiums

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