Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultra-high performance hybrid fiber concrete shield segment and preparation method thereof
The invention discloses an ultra-high performance hybrid fiber concrete shield segment and a preparation method thereof. The ultra-high performance hybrid fiber concrete shield segment is of a reinforced concrete structure which consists of a steel skeleton and concrete, wherein the reinforcement ratio of used main reinforcements is 0.5%-1.0%, the distances of the main reinforcements are 150-300mm, the grades of steel reinforcements are not less than three, the smallest steel reinforcement distance of distributed reinforcements is 400mm, the biggest steel reinforcement distance of used distributed reinforcements is 2000mm, and the grades of the steel reinforcements are not less than two. The ultra-high performance hybrid fiber concrete shield segment is made from ultra-high performance hybrid fiber concrete, and comprises cementitious materials, sands, crushed stones, steel fibers, synthetic fibers, water reducer, defoamer and water. The ultra-high performance hybrid fiber concrete shield segment is less in dosage of the steel reinforcements and concrete and high in early strength, can prevent steam preservation, reduces energy consumption, and is green, energy-saving and environmentally friendly. The ultra-high performance hybrid fiber concrete shield segment is strong in anti-burst performance when having a fire, excellent in toughness and crack resistance and excellent in durability, enables edge joints not to easily break, and overcomes the defects of traditional segments.
Ultra-high performance hybrid fiber concrete shield segment and preparation method thereof
The invention discloses an ultra-high performance hybrid fiber concrete shield segment and a preparation method thereof. The ultra-high performance hybrid fiber concrete shield segment is of a reinforced concrete structure which consists of a steel skeleton and concrete, wherein the reinforcement ratio of used main reinforcements is 0.5%-1.0%, the distances of the main reinforcements are 150-300mm, the grades of steel reinforcements are not less than three, the smallest steel reinforcement distance of distributed reinforcements is 400mm, the biggest steel reinforcement distance of used distributed reinforcements is 2000mm, and the grades of the steel reinforcements are not less than two. The ultra-high performance hybrid fiber concrete shield segment is made from ultra-high performance hybrid fiber concrete, and comprises cementitious materials, sands, crushed stones, steel fibers, synthetic fibers, water reducer, defoamer and water. The ultra-high performance hybrid fiber concrete shield segment is less in dosage of the steel reinforcements and concrete and high in early strength, can prevent steam preservation, reduces energy consumption, and is green, energy-saving and environmentally friendly. The ultra-high performance hybrid fiber concrete shield segment is strong in anti-burst performance when having a fire, excellent in toughness and crack resistance and excellent in durability, enables edge joints not to easily break, and overcomes the defects of traditional segments.
Ultra-high performance hybrid fiber concrete shield segment and preparation method thereof
SHI YUNXING (Autor:in) / NI KUN (Autor:in) / ZHANG FASHENG (Autor:in) / LIU XINWEI (Autor:in) / ZHANG YAN GANG (Autor:in) / WANG QINGXUAN (Autor:in)
11.11.2015
Patent
Elektronische Ressource
Englisch
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