Fly ash

[Product Description]

• Fly ash means the ash collected electric precipitator occurred in thermal power plant by burning pulverized coal

• Fly ash is composed glassy alumino-silicates and had pozzolanic reactivity with cementitious material

• In concrete, fly ash increase workability and accordingly reduce the bleeding by reduce unit quantity of water due to its shape close to the sphere, and increase volume stability by reduce hydration heat

• For use fly ash to cement / concrete admixture, refining process be positively necessary and refining process of Sejong E&C consisted of the air-classification and electro-static separation for produce fly ash product that maintained constant quality

• Class                                                   : F (ASTM C618)

• Main components                              : Alumino-silicates, Al₂O₃+SiO₂+Fe₂O₃: >70%

• Shape                                                  :spherical

• Loss on ignition(carbon contents) : <6%, (3~5%)

• Blaine                                                 : >3,000cm²/g

• Activity index(7, 28 days)                 : >75%

• Uniformity                                          : >95%

[Company Information] 

History

2018 Performance certification / Underground safety Impact Assessment Special Institute

2017 Prime minister Award, Global IP Star enterprise

2016 MOLIT minister Award, Disaster safety product certificate

2014 MOLIT minister Award, Steel Tower Industrial Medal

2013 NET Certification, Gold Prize of Geneva International Inventions Exhibition 

2012 GR Certification

2011 Silver Prize of International Invention Fair

2010 INNO-BIZ Certification

2009 Soil Remediation Licensing

2008 Licensing(Reinforced Concrete Construction, Ground water purification, Engineering business, Mine reclamation

2007 Foundation

Vision

“Diligence” “Honor” “Challenge”

Be the company with outstanding ability which could find the motive for development through social development based on honesty and honor and continuous development of new technologies

Our Products

Boring & Grouting, Reinforced concrete construction, Mine reclamation, Soil remediation, Engineering service, Fly ash refining, Earth Anchor, Precast concrete Panel, Solidification