Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic binder composition using rapidly-cooled ladle furnace slag powder, and method for preparing same
The present invention relates to a hydraulic binder composition using rapidly-cooled ladle furnace slag powder and to a method for preparing same. More particularly, the rapidly-cooled ladle furnace slag (RC-LFS) powder is obtained by spraying and scattering gas at a high pressure and high speed onto the electric arc furnace reducing slag, which is one of the by-products generated during iron smelting performed in ironworks, and quickly cooling and pulverizing the slag. The initial high hydrothermal reaction and initial setting of the rapidly-cooled ladle furnace slag (RC-LFS) powder are delayed to ensure workability. A retardant and gypsum are mixed into the rapidly-cooled ladle furnace slag (RC-LFS) powder so as to activate the generation of needle-shaped ettringite and to thus develop the initial and long-term strength, and therefore the rapidly-cooled ladle furnace slag (RC-LFS) powder of the present invention can be used as a substitute for ordinary Portland cement.
Hydraulic binder composition using rapidly-cooled ladle furnace slag powder, and method for preparing same
The present invention relates to a hydraulic binder composition using rapidly-cooled ladle furnace slag powder and to a method for preparing same. More particularly, the rapidly-cooled ladle furnace slag (RC-LFS) powder is obtained by spraying and scattering gas at a high pressure and high speed onto the electric arc furnace reducing slag, which is one of the by-products generated during iron smelting performed in ironworks, and quickly cooling and pulverizing the slag. The initial high hydrothermal reaction and initial setting of the rapidly-cooled ladle furnace slag (RC-LFS) powder are delayed to ensure workability. A retardant and gypsum are mixed into the rapidly-cooled ladle furnace slag (RC-LFS) powder so as to activate the generation of needle-shaped ettringite and to thus develop the initial and long-term strength, and therefore the rapidly-cooled ladle furnace slag (RC-LFS) powder of the present invention can be used as a substitute for ordinary Portland cement.
Hydraulic binder composition using rapidly-cooled ladle furnace slag powder, and method for preparing same
KIM JIN-MAN (Autor:in) / CHOI SUN-MI (Autor:in) / KIM JI-HO (Autor:in)
20.05.2015
Patent
Elektronische Ressource
Englisch
| Europäisches Patentamt | 2018
Hydration properties of ladle furnace slag powder rapidly cooled by air
| Online Contents | 2016
Hydration properties of ladle furnace slag powder rapidly cooled by air
| British Library Online Contents | 2016
Hydration properties of ladle furnace slag powder rapidly cooled by air
| British Library Online Contents | 2016
| Europäisches Patentamt | 2017