A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation process of high-performance fiber reinforced concrete
The invention discloses a preparation process of high-performance fiber reinforced concrete, and relates to the technical field of engineering materials, the preparation process comprises the following steps: S1, preparing materials: cement, coarse aggregate, fine aggregate, pulverized coal, silica fume, water, polyvinyl alcohol fiber, modified basalt fiber, rubber, fine stone, fly ash and mineral powder; s2, mixing and stirring the materials; s3, obtaining modified fibers; and S4, mixing to prepare the high-strength concrete. The high-toughness concrete has high toughness, the granular rubber is introduced into the concrete to greatly improve the impact and abrasion resistance of the concrete, and when moving gravels cut, impact and the like on the concrete, the granular rubber has excellent elasticity and abrasion resistance, so that the cutting effect of damaging set cement and aggregate is hindered under the cutting effect of the gravels, and the impact resistance of the concrete is greatly improved. Meanwhile, the rubber absorbs impact kinetic energy of a rebound release part through self deformation, the overall impact kinetic energy acting on the concrete is reduced, and generation of microcracks in set cement is delayed.
本发明公开了一种高性能纤维增强混凝土的制备工艺，涉及工程材料技术领域，包括以下步骤，S1、准备材料：水泥、粗骨料、细集料、粉煤、硅灰、水、聚乙烯醇纤维、改性玄武岩纤维、橡胶，细石、粉煤灰和矿粉；S2、材料混合搅拌；S3、得到改性纤维；S4、混合制备得到高强度混凝土。本发明兼具高韧性，在混凝土中引入粒状橡胶，来大幅提高混凝土的抗冲磨性，当运动的砂石对混凝土进行切削、冲击等作用时，粒状橡胶由于本身具有优良的弹性和耐磨性，在砂石的切削作用下会阻碍了对水泥石和骨料的破坏的切削作用，同时橡胶通过自身形变吸收回弹释放部分冲击动能，降低作用于混凝土的整体冲击动能，延缓水泥石内部微裂纹的产生。
Preparation process of high-performance fiber reinforced concrete
The invention discloses a preparation process of high-performance fiber reinforced concrete, and relates to the technical field of engineering materials, the preparation process comprises the following steps: S1, preparing materials: cement, coarse aggregate, fine aggregate, pulverized coal, silica fume, water, polyvinyl alcohol fiber, modified basalt fiber, rubber, fine stone, fly ash and mineral powder; s2, mixing and stirring the materials; s3, obtaining modified fibers; and S4, mixing to prepare the high-strength concrete. The high-toughness concrete has high toughness, the granular rubber is introduced into the concrete to greatly improve the impact and abrasion resistance of the concrete, and when moving gravels cut, impact and the like on the concrete, the granular rubber has excellent elasticity and abrasion resistance, so that the cutting effect of damaging set cement and aggregate is hindered under the cutting effect of the gravels, and the impact resistance of the concrete is greatly improved. Meanwhile, the rubber absorbs impact kinetic energy of a rebound release part through self deformation, the overall impact kinetic energy acting on the concrete is reduced, and generation of microcracks in set cement is delayed.
本发明公开了一种高性能纤维增强混凝土的制备工艺，涉及工程材料技术领域，包括以下步骤，S1、准备材料：水泥、粗骨料、细集料、粉煤、硅灰、水、聚乙烯醇纤维、改性玄武岩纤维、橡胶，细石、粉煤灰和矿粉；S2、材料混合搅拌；S3、得到改性纤维；S4、混合制备得到高强度混凝土。本发明兼具高韧性，在混凝土中引入粒状橡胶，来大幅提高混凝土的抗冲磨性，当运动的砂石对混凝土进行切削、冲击等作用时，粒状橡胶由于本身具有优良的弹性和耐磨性，在砂石的切削作用下会阻碍了对水泥石和骨料的破坏的切削作用，同时橡胶通过自身形变吸收回弹释放部分冲击动能，降低作用于混凝土的整体冲击动能，延缓水泥石内部微裂纹的产生。
Preparation process of high-performance fiber reinforced concrete
一种高性能纤维增强混凝土的制备工艺
2024-05-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-performance fiber-reinforced recycled concrete and preparation method thereof
| European Patent Office | 2023
Ultra-high performance fiber reinforced concrete and preparation method thereof
| European Patent Office | 2024
Fiber-reinforced regenerated ultra-high performance concrete and preparation method thereof
| European Patent Office | 2024
ULTRA-HIGH PERFORMANCE FIBER-REINFORCED CONCRETE COMPOSITIONS
| European Patent Office | 2017