High-damping concrete and preparation method thereof

A technology of concrete and high damping, applied in the field of building materials, can solve the problem that the compressive strength of concrete and the damping ratio cannot have both, and achieve the effect of low price, promoting the hydration process and improving the damping performance.
CN111087203AActive Publication Date: 2020-05-01YANGTZE UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
YANGTZE UNIVERSITY
Publication Date
2020-05-01

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Abstract

The invention relates to high-damping concrete. The high-damping concrete comprises the following components in parts by mass: 140-150 parts of cement, 260-280 parts of natural river sand, 5-8 parts of rubber powder, 12-15 parts of silica fume, 400-420 parts of gravels, 0.58-2.16 parts of polypropylene fibers, 0.8-1 parts of a water reducing agent and 80-90 parts of water, wherein the granularityof the gravels is less than 40mm; the high-damping concrete is formed by fully mixing and curing the components. The invention further provides a technical scheme of the preparation method of the high-damping concrete. According to the invention, the polypropylene fiber with toughening and internal curing effects, the rubber powder with viscoelasticity, the silica fume with physical filling effectand the like are added, and the components cooperate with one another to improve the performance of the concrete, so that the concrete has high damping ratio.
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Description

technical field

[0001] The invention belongs to the technical field of building materials, and in particular relates to a high-damping concrete and a preparation method thereof. Background technique

[0002] With the continuous acceleration of my country's modernization process, high-rise and super high-rise buildings have sprung up. Vibrations caused by earthquakes and extreme effects can cause damage to high-rise buildings and even lead to failure. At present, dampers are often used in buildings to resist vibration, but the damping performance of concrete itself is ignored. In comparison, the development of high-damping concrete can avoid the inconvenience of damper installation and subsequent maintenance, and is more economical.

[0003] Polypropylene fiber plays a significant role in inhibiting concrete plastic shrinkage and cracking, improving concrete impact toughness, and improving concrete impermeability and frost resistance. Compared with other materials, polypropy...

Claims

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