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A platform for research: civil engineering, architecture and urbanism
High-tensile-strength concrete and preparation method thereof
The invention discloses high-tensile-strength concrete and a preparation method thereof, wherein the raw materials comprise, by mass, 600 to 850 parts of 42.5-grade ordinary cement, 50 to 100 parts offly ash, 60 to 120 parts of steel fiber, 10 to 20 parts of carbon fiber, 500 to 650 parts of coarse aggregate, 250 to 400 parts of sand, 200 to 240 parts of water, 8 to 12 parts of a water reducing agent, 4 to 6 parts of hydroxyethyl cellulose and 8 to 12 parts of NaOH. According to the invention, steel fibers and carbon fibers are doped in concrete components at the same time, the combination ofthe two fibers can give full play to the combined action of the metal fibers and the plastic fibers, and the steel fibers and the carbon fibers of different sizes can also give play to the positive mixing effect, so that the tensile strength of the concrete can be remarkably improved; the fiber adding mode can play a role in inhibiting micro-cracks and macro-cracks from microscopicity to macroscopicity; and the method has the advantages of strong pertinence, strong operability, guarantee of the quality stability of the concrete, improvement of the durability of the concrete, and substantial social, economic and environmental benefits.
本发明公开了一种高抗拉强度混凝土及其制备方法，原料按照质量份数，包括有：42.5级普通水泥600～850份，粉煤灰50～100份，钢纤维60～120，碳纤维10～20，粗骨料500～650份，砂250～400份，水200～240份，减水剂8～12份，羟乙基纤维素4～6份，NaOH 8～12份。本发明的混凝土组份中同时掺杂了钢纤维和碳纤维，两种纤维的参合能够充分发挥金属纤维和塑料纤维的共同作用，同时不同尺寸的钢纤维和碳纤维也能发挥积极的混杂效应，可以显著提高混凝土的抗拉强度；这种纤维添加方式能够从细观到宏观对微裂纹和宏观裂纹起到抑制作用。本发明针对性强、可操作性强，能够保证混凝土质量的稳定性，能够提高混凝土的耐久性，具有显著的社会效益、经济效益和环境效益。
High-tensile-strength concrete and preparation method thereof
The invention discloses high-tensile-strength concrete and a preparation method thereof, wherein the raw materials comprise, by mass, 600 to 850 parts of 42.5-grade ordinary cement, 50 to 100 parts offly ash, 60 to 120 parts of steel fiber, 10 to 20 parts of carbon fiber, 500 to 650 parts of coarse aggregate, 250 to 400 parts of sand, 200 to 240 parts of water, 8 to 12 parts of a water reducing agent, 4 to 6 parts of hydroxyethyl cellulose and 8 to 12 parts of NaOH. According to the invention, steel fibers and carbon fibers are doped in concrete components at the same time, the combination ofthe two fibers can give full play to the combined action of the metal fibers and the plastic fibers, and the steel fibers and the carbon fibers of different sizes can also give play to the positive mixing effect, so that the tensile strength of the concrete can be remarkably improved; the fiber adding mode can play a role in inhibiting micro-cracks and macro-cracks from microscopicity to macroscopicity; and the method has the advantages of strong pertinence, strong operability, guarantee of the quality stability of the concrete, improvement of the durability of the concrete, and substantial social, economic and environmental benefits.
本发明公开了一种高抗拉强度混凝土及其制备方法，原料按照质量份数，包括有：42.5级普通水泥600～850份，粉煤灰50～100份，钢纤维60～120，碳纤维10～20，粗骨料500～650份，砂250～400份，水200～240份，减水剂8～12份，羟乙基纤维素4～6份，NaOH 8～12份。本发明的混凝土组份中同时掺杂了钢纤维和碳纤维，两种纤维的参合能够充分发挥金属纤维和塑料纤维的共同作用，同时不同尺寸的钢纤维和碳纤维也能发挥积极的混杂效应，可以显著提高混凝土的抗拉强度；这种纤维添加方式能够从细观到宏观对微裂纹和宏观裂纹起到抑制作用。本发明针对性强、可操作性强，能够保证混凝土质量的稳定性，能够提高混凝土的耐久性，具有显著的社会效益、经济效益和环境效益。
High-tensile-strength concrete and preparation method thereof
一种高抗拉强度混凝土及其制备方法
SONG WEIMIN (author) / WU HAO (author) / XU ZIHAO (author) / XU FEI (author) / DENG ZICHENG (author) / ZHANG MIAOMIAO (author)
2020-06-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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