Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance basalt fiber reinforced and toughened concrete and preparation method thereof
The invention relates to concrete, in particular to high-performance basalt fiber reinforced and toughened concrete and a preparation method thereof. The concrete comprises a basalt fiber, a reinforcing agent and a reinforcing agent, the basalt fiber is a fiber bundle composed of basalt fiber monofilaments, the diameter of the fiber bundle is 0.6-0.9 mm, and the length of the fiber bundle is 4-5 cm; the diameter of the basalt fiber monofilament is not less than 5 [mu] m, the elastic modulus is not less than 40 GPa, the tensile strength is not less than 900 MPa, and the density is not less than 2100 kg/m < 3 >; in each cubic meter of concrete, the mixing amount of the basalt fiber is not less than 5kg. The concrete provided by the invention has excellent breaking strength, residual strength after cracking, crack width control capability and toughness, 0.4 < = fR1k/fLk < = 1.5 under the condition of a service limit state, and fR3k/fR1k > 0.5 under the condition of a strength limit state.
本发明涉及一种混凝土，尤其涉及一种高性能玄武岩纤维增强增韧混凝土及其制备方法。所述混凝土包括：玄武岩纤维；所述玄武岩纤维是由玄武岩纤维单丝组成的纤维束，所述纤维束的直径为0.6‑0.9mm，长度为4‑5cm；所述玄武岩纤维单丝的直径不小于5μm，弹性模量不小于40GPa，抗拉强度不小于900MPa，密度不小于2100kg/m3；每立方米混凝土中，所述玄武岩纤维的掺量不小于5kg。本发明提供的混凝土具有优异的抗折强度、开裂后残余强度、裂纹宽度控制能力和韧性，服务极限状态条件下0.4≤fR1k/fLk≤1.5，强度极限状态条件下fR3k/fR1k＞0.5。
High-performance basalt fiber reinforced and toughened concrete and preparation method thereof
The invention relates to concrete, in particular to high-performance basalt fiber reinforced and toughened concrete and a preparation method thereof. The concrete comprises a basalt fiber, a reinforcing agent and a reinforcing agent, the basalt fiber is a fiber bundle composed of basalt fiber monofilaments, the diameter of the fiber bundle is 0.6-0.9 mm, and the length of the fiber bundle is 4-5 cm; the diameter of the basalt fiber monofilament is not less than 5 [mu] m, the elastic modulus is not less than 40 GPa, the tensile strength is not less than 900 MPa, and the density is not less than 2100 kg/m < 3 >; in each cubic meter of concrete, the mixing amount of the basalt fiber is not less than 5kg. The concrete provided by the invention has excellent breaking strength, residual strength after cracking, crack width control capability and toughness, 0.4 < = fR1k/fLk < = 1.5 under the condition of a service limit state, and fR3k/fR1k > 0.5 under the condition of a strength limit state.
本发明涉及一种混凝土，尤其涉及一种高性能玄武岩纤维增强增韧混凝土及其制备方法。所述混凝土包括：玄武岩纤维；所述玄武岩纤维是由玄武岩纤维单丝组成的纤维束，所述纤维束的直径为0.6‑0.9mm，长度为4‑5cm；所述玄武岩纤维单丝的直径不小于5μm，弹性模量不小于40GPa，抗拉强度不小于900MPa，密度不小于2100kg/m3；每立方米混凝土中，所述玄武岩纤维的掺量不小于5kg。本发明提供的混凝土具有优异的抗折强度、开裂后残余强度、裂纹宽度控制能力和韧性，服务极限状态条件下0.4≤fR1k/fLk≤1.5，强度极限状态条件下fR3k/fR1k＞0.5。
High-performance basalt fiber reinforced and toughened concrete and preparation method thereof
一种高性能玄武岩纤维增强增韧混凝土及其制备方法
LIU YANJUN (Autor:in) / WANG ZHAOJIA (Autor:in) / XU RUILAI (Autor:in) / HAN KANG (Autor:in)
10.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Basalt fiber reinforced concrete and preparation method thereof
| Europäisches Patentamt | 2022
Basalt fiber reinforced asphalt concrete and preparation method thereof
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2024
Impact-resistant basalt fiber reinforced concrete and preparation method thereof
| Europäisches Patentamt | 2020
Basalt-toughened color-altered durable polyurethane concrete and preparation process thereof
| Europäisches Patentamt | 2024