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A platform for research: civil engineering, architecture and urbanism
Imitation steel fiber ultra-high performance concrete and preparation method thereof
The invention discloses steel fiber-like ultra-high performance concrete and a preparation method thereof, and the steel fiber-like ultra-high performance concrete is prepared from the following raw materials in parts by weight: 500 to 800 parts of cement, 300 to 500 parts of water, 80 to 120 parts of steel fiber-like, 60 to 110 parts of fly ash, 70 to 120 parts of fine aggregate, 160 to 210 parts of coarse aggregate, 16 to 21 parts of water reducing agent and 21 to 26 parts of monofilament microfiber. The transverse direction of the imitated steel fiber is wavy, the diameter of the imitated steel fiber is 0.15-0.25 mm, the length of the imitated steel fiber is 30-50 mm, and the tensile strength is larger than or equal to 2000 Mpa. According to the prepared steel-fiber-imitating ultra-high-performance concrete, steel fibers are replaced by imitating steel fibers to be used for cement concrete, the characteristics of low tensile strength, small ultimate elongation, brittleness and the like of concrete are overcome, and the concrete has the properties of tensile strength, shear resistance, crack resistance, fatigue resistance, high toughness and the like.
本发明公开了一种仿钢纤维超高性能混凝土及其制备方法，其中的仿钢纤维超高性能混凝土包括以下重量份的原料：水泥500‑800份、水300‑500份、仿钢纤维80‑120份、粉煤灰60‑110份、细骨料70‑120份、粗骨料160‑210份、减水剂16‑21份和单丝微纤维21‑26份，所述仿钢纤维横为波浪形，直径为0.15‑0.25mm，长度为30‑50mm，拉伸强度≥2000Mpa。本发明制备的仿钢纤维超高性能混凝土，通过仿钢纤维替代钢纤维用于水泥混凝土，克服了混凝土抗拉强度低，极限延伸率小，性脆等特点，具有抗拉、抗剪、阻裂、耐疲劳、高韧性等性能。
Imitation steel fiber ultra-high performance concrete and preparation method thereof
The invention discloses steel fiber-like ultra-high performance concrete and a preparation method thereof, and the steel fiber-like ultra-high performance concrete is prepared from the following raw materials in parts by weight: 500 to 800 parts of cement, 300 to 500 parts of water, 80 to 120 parts of steel fiber-like, 60 to 110 parts of fly ash, 70 to 120 parts of fine aggregate, 160 to 210 parts of coarse aggregate, 16 to 21 parts of water reducing agent and 21 to 26 parts of monofilament microfiber. The transverse direction of the imitated steel fiber is wavy, the diameter of the imitated steel fiber is 0.15-0.25 mm, the length of the imitated steel fiber is 30-50 mm, and the tensile strength is larger than or equal to 2000 Mpa. According to the prepared steel-fiber-imitating ultra-high-performance concrete, steel fibers are replaced by imitating steel fibers to be used for cement concrete, the characteristics of low tensile strength, small ultimate elongation, brittleness and the like of concrete are overcome, and the concrete has the properties of tensile strength, shear resistance, crack resistance, fatigue resistance, high toughness and the like.
本发明公开了一种仿钢纤维超高性能混凝土及其制备方法，其中的仿钢纤维超高性能混凝土包括以下重量份的原料：水泥500‑800份、水300‑500份、仿钢纤维80‑120份、粉煤灰60‑110份、细骨料70‑120份、粗骨料160‑210份、减水剂16‑21份和单丝微纤维21‑26份，所述仿钢纤维横为波浪形，直径为0.15‑0.25mm，长度为30‑50mm，拉伸强度≥2000Mpa。本发明制备的仿钢纤维超高性能混凝土，通过仿钢纤维替代钢纤维用于水泥混凝土，克服了混凝土抗拉强度低，极限延伸率小，性脆等特点，具有抗拉、抗剪、阻裂、耐疲劳、高韧性等性能。
Imitation steel fiber ultra-high performance concrete and preparation method thereof
一种仿钢纤维超高性能混凝土及其制备方法
ZHANG GUANGHUA (author)
2023-10-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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