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A platform for research: civil engineering, architecture and urbanism
EXPANSIVE GROUT COMPOSITION FOR SOIL-NAILING METHOD
The present invention relates to an expandable grout composition for a soil-nailing method and, more specifically, to a grout material to be used in construction for the purpose of preventing cracks or collapse of an excavation surface or a slope which is a soft ground during engineering public works. The expandable grout composition uses waste calcium hydroxide, desulfurization dust, high calcium ash (C-grade fly ash), and the like generated as by-products of a desulfurization process from steel mills in combination so as to activate the potential hydraulic properties of slag fine powder, thereby expressing cemented intensity. In addition, the expandable grout composition allows the intended purpose of the soil-nailing method to be achieved by removing soil pore water and reducing the moisture content by using an exothermic reaction and a volume expansion effect of CaO which is plentifully contained in incineration residues. According to the present invention, the expandable grout composition for the soil-nailing method comprises 20-50 parts by weight of waste calcium hydroxide which is a by-product of the desulfurization in power plants, with respect to 100 parts by weight of furnace slag cement.
본 발명은 소일 네일링 공법용(soil-nailing method) 팽창성 그라우트 조성물에 관한 것으로서, 보다 상세하게는 토목공사 중 연약지반인 경사면이나 터파기 굴착면의 균열이나 무너짐을 방지하기위한 목적으로 시공할 시 사용되는 그라우트재에 관한 것으로서, 제철소 탈황공정 부산물로 발생하는 폐수산화칼슘과 탈황분진 및 고칼슘 소각재(C급 플라이애쉬) 등을 복합적으로 활용해 슬래그미분말의 잠재수경성을 활성화시켜 고결강도를 발현하며, 소각잔재에 다량 함유된 CaO의 발열반응과 체적팽창작용을 이용하여 토양의 간극수를 제거하고 함수율을 저감하여 소일네일링의 소기의 목적을 달성케 하는 팽창성 그라우트 조성물에 관한 것이다. 본 발명에 의한 소일 네일링용 팽창성 그라우트 조성물은 고로슬래그 시멘트 100중량부에 대하여, 발전소 탈황공정 부산물인 폐 수산화칼슘 20~50중량부를 포함한다.
EXPANSIVE GROUT COMPOSITION FOR SOIL-NAILING METHOD
The present invention relates to an expandable grout composition for a soil-nailing method and, more specifically, to a grout material to be used in construction for the purpose of preventing cracks or collapse of an excavation surface or a slope which is a soft ground during engineering public works. The expandable grout composition uses waste calcium hydroxide, desulfurization dust, high calcium ash (C-grade fly ash), and the like generated as by-products of a desulfurization process from steel mills in combination so as to activate the potential hydraulic properties of slag fine powder, thereby expressing cemented intensity. In addition, the expandable grout composition allows the intended purpose of the soil-nailing method to be achieved by removing soil pore water and reducing the moisture content by using an exothermic reaction and a volume expansion effect of CaO which is plentifully contained in incineration residues. According to the present invention, the expandable grout composition for the soil-nailing method comprises 20-50 parts by weight of waste calcium hydroxide which is a by-product of the desulfurization in power plants, with respect to 100 parts by weight of furnace slag cement.
본 발명은 소일 네일링 공법용(soil-nailing method) 팽창성 그라우트 조성물에 관한 것으로서, 보다 상세하게는 토목공사 중 연약지반인 경사면이나 터파기 굴착면의 균열이나 무너짐을 방지하기위한 목적으로 시공할 시 사용되는 그라우트재에 관한 것으로서, 제철소 탈황공정 부산물로 발생하는 폐수산화칼슘과 탈황분진 및 고칼슘 소각재(C급 플라이애쉬) 등을 복합적으로 활용해 슬래그미분말의 잠재수경성을 활성화시켜 고결강도를 발현하며, 소각잔재에 다량 함유된 CaO의 발열반응과 체적팽창작용을 이용하여 토양의 간극수를 제거하고 함수율을 저감하여 소일네일링의 소기의 목적을 달성케 하는 팽창성 그라우트 조성물에 관한 것이다. 본 발명에 의한 소일 네일링용 팽창성 그라우트 조성물은 고로슬래그 시멘트 100중량부에 대하여, 발전소 탈황공정 부산물인 폐 수산화칼슘 20~50중량부를 포함한다.
EXPANSIVE GROUT COMPOSITION FOR SOIL-NAILING METHOD
소일 네일링 공법용 팽창성 그라우트 조성물
PARK WON CHUN (author) / LEE NAN HEE (author) / PARK JI YEON (author)
2016-01-19
Patent
Electronic Resource
Korean
IPC:
C04B
Kalk
,
LIME
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