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Concrete with high toughness

A high-strength toughness, concrete technology, applied in the field of construction engineering, can solve the problems of shrinkage, cracking, etc., and achieve the effects of increasing life, increasing fracture energy, and high elastic modulus

Inactive Publication Date: 2009-09-16
朱世忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to aim at the deficiencies and defects in the prior art, and provide a kind of concrete with high strength and toughness. Steel fiber material is added in the concrete, which solves the phenomenon of cracking and shrinkage in the pouring process, and has better strength and toughness. Comprehensive properties of toughness

Method used

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Examples

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Embodiment Construction

[0011] The following embodiments are provided in conjunction with the contents of the present invention:

[0012] Concrete with high strength and toughness is made of cement, quartz sand, steel fiber and water in a certain proportion, and is completed by the following process: first dry mix the cement and quartz sand according to the design requirements of the mix ratio for 30 seconds, add steel fiber, and stir for 30 seconds seconds, and finally add water and stir to form a concrete mixture. The stirring time is 2 to 3 minutes. The mixed concrete is poured into the component model and properly vibrated.

[0013] To prepare high-strength and tough concrete, the content of each component is formulated according to the following ratio:

[0014] Example

components

Example 1

Example 2

Example 3

Example 4 cement 30 50 30 32 Quartz sand 30 30 35 50 steel fiber 20 10 25 2 water 20 10 10 16

[0015] The concrete...

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PUM

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Abstract

The invention relates to concrete with high toughness, which is used in the technical field of constructional engineering. The concrete comprises the following components in portion by weight: 30 to 50 portions of cement, 30 to 50 portions of quartz sand, 2 to 25 portions of steel fiber, and 10 to 20 portions of water. The concrete has the advantages that the concrete has ultrahigh strength and high elastic modulus, improves breaking energy, has high toughness and high durability, prolongs the service life of a structure, does not need reinforcing bars, lowers construction cost of engineering, and can be used for pouring large-span concrete bridges and high-rise building struts and replace steel to pour large-sized pressure pipelines and the like.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to concrete with high strength and toughness. Background technique [0002] Since the advent of Portland cement, concrete with it as the basic cementing material, especially the composite of steel and concrete, has become an indispensable basic building material for various infrastructures in the world. The highest strength of concrete used in engineering is only 34.2MPa, the comprehensive indicators are not suitable for the construction of large and super large structures, such as high-rise buildings, long-span bridges and offshore oil drilling platforms, etc. After development, high-strength concrete has been produced, and its aggregate and cement matrix The transition zone basically disappears, and the durability is significantly improved. However, with the wide application of high-strength concrete, some problems are exposed, such as bending resistance and tensi...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B14/06C04B14/48
CPCC04B2103/0016C04B28/04C04B20/1062
Inventor 安明哲
Owner 朱世忠
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