Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sprayed concrete containing iron tailing sand as well as preparation method and application of sprayed concrete
The invention belongs to the technical field of road construction, and particularly relates to sprayed concrete containing iron tailing sand as well as a preparation method and application of the sprayed concrete. The sprayed concrete comprises the following components in parts by weight: 25-30 parts of a cementing material, 65-72 parts of aggregate and 3-5 parts of water, wherein the aggregate comprises 75-85 parts of coarse aggregate and 15-25 parts of iron tailing sand. Iron tailing sand is fully utilized, environmental pollution caused by solid waste stacking is solved, aggregate with the particle size of 5-10 mm is adopted in sprayed concrete as a framework of the concrete, gaps in the framework can be effectively filled on the premise that coarse aggregate forms a stable framework by utilizing the characteristic that the iron tailing sand is fine in particle size, and the construction efficiency is improved. Concrete gaps are controlled in a range of 13%-18%, so that the mechanical property of the concrete is ensured, and multiple gaps of the concrete are realized.
本发明属于道路施工技术领域，尤其涉及一种含有铁尾矿砂的喷射混凝土及其制备方法和应用。所述喷射混凝土包括以下重量份的组分：胶凝材料25～30份、集料65～72份、水3～5份，所述集料包括粗集料75～85份、铁尾矿砂15～25份。本发明充分利用铁尾矿砂，解决了固体废弃物堆放对环境的污染，其次喷射混凝土中采用5‑10mm粒径集料作为混凝土的骨架，利用铁尾矿砂粒径细的特点，确保粗集料形成稳定骨架的前提下，可以对骨架内空隙进行有效填充，使混凝土空隙控制在13%～18%范围内，既保证混凝土的力学性能，又实现混凝土的多空隙。
Sprayed concrete containing iron tailing sand as well as preparation method and application of sprayed concrete
The invention belongs to the technical field of road construction, and particularly relates to sprayed concrete containing iron tailing sand as well as a preparation method and application of the sprayed concrete. The sprayed concrete comprises the following components in parts by weight: 25-30 parts of a cementing material, 65-72 parts of aggregate and 3-5 parts of water, wherein the aggregate comprises 75-85 parts of coarse aggregate and 15-25 parts of iron tailing sand. Iron tailing sand is fully utilized, environmental pollution caused by solid waste stacking is solved, aggregate with the particle size of 5-10 mm is adopted in sprayed concrete as a framework of the concrete, gaps in the framework can be effectively filled on the premise that coarse aggregate forms a stable framework by utilizing the characteristic that the iron tailing sand is fine in particle size, and the construction efficiency is improved. Concrete gaps are controlled in a range of 13%-18%, so that the mechanical property of the concrete is ensured, and multiple gaps of the concrete are realized.
本发明属于道路施工技术领域，尤其涉及一种含有铁尾矿砂的喷射混凝土及其制备方法和应用。所述喷射混凝土包括以下重量份的组分：胶凝材料25～30份、集料65～72份、水3～5份，所述集料包括粗集料75～85份、铁尾矿砂15～25份。本发明充分利用铁尾矿砂，解决了固体废弃物堆放对环境的污染，其次喷射混凝土中采用5‑10mm粒径集料作为混凝土的骨架，利用铁尾矿砂粒径细的特点，确保粗集料形成稳定骨架的前提下，可以对骨架内空隙进行有效填充，使混凝土空隙控制在13%～18%范围内，既保证混凝土的力学性能，又实现混凝土的多空隙。
Sprayed concrete containing iron tailing sand as well as preparation method and application of sprayed concrete
一种含有铁尾矿砂的喷射混凝土及其制备方法和应用
LI CHUANHAI (Autor:in) / LEE SUN JOONG (Autor:in) / ZHANG JUNSHENG (Autor:in) / GAO GUOHUA (Autor:in) / WANG XINYANG (Autor:in) / DING JIGUANG (Autor:in)
03.02.2023
Patent
Elektronische Ressource
Chinesisch
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