A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Iron tailings roller compacted concrete for pavement
The present invention relates to iron tailings roller compacted concrete for pavement. The iron tailings roller compacted concrete is characterized in that the iron tailings roller compacted concrete is prepared from 218-327 Kg/m<3> of a silicate cement, 283-436 Kg/m<3> of an admixture, 349-436 Kg/m<3> of iron tailings, 873-1091 Kg/m<3> of an aggregate, 0.44-0.88 Kg/m<3> of an additive and 150-174 Kg/m<3> of water, wherein the admixture is a mixture of iron tailings, blast furnace slag and fly ash, the aggregate is formed by crushing iron mine waste rock, and the additive is a polycarboxylic acid water reducing agent. According to the present invention, the iron tailings roller compacted concrete of the present invention is mixed and is loaded into a mold, and then is placed onto the upper surface of the vibrating table, and 300 Kg/m<2> of the pressure is applied, the pressing-vibrating method is utilized to mold, and the flexural strength after 28 days achieves more than or equal to 5.7 MPa.
Iron tailings roller compacted concrete for pavement
The present invention relates to iron tailings roller compacted concrete for pavement. The iron tailings roller compacted concrete is characterized in that the iron tailings roller compacted concrete is prepared from 218-327 Kg/m<3> of a silicate cement, 283-436 Kg/m<3> of an admixture, 349-436 Kg/m<3> of iron tailings, 873-1091 Kg/m<3> of an aggregate, 0.44-0.88 Kg/m<3> of an additive and 150-174 Kg/m<3> of water, wherein the admixture is a mixture of iron tailings, blast furnace slag and fly ash, the aggregate is formed by crushing iron mine waste rock, and the additive is a polycarboxylic acid water reducing agent. According to the present invention, the iron tailings roller compacted concrete of the present invention is mixed and is loaded into a mold, and then is placed onto the upper surface of the vibrating table, and 300 Kg/m<2> of the pressure is applied, the pressing-vibrating method is utilized to mold, and the flexural strength after 28 days achieves more than or equal to 5.7 MPa.
Iron tailings roller compacted concrete for pavement
CHEN YU (author) / ZHOU HUIWEN (author) / LIU YANLING (author) / JI XIN (author) / GUAN GE (author)
2015-04-22
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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