High-dispersion steel fiber reinforced concrete and construction technology thereof

A technology of steel fiber concrete and construction technology, which is applied in the field of building construction, can solve the problems of no reinforcement, local strength weakening, etc., and achieve the effect of overcoming adverse effects, good workability, and meeting the needs of on-site construction

Inactive Publication Date: 2016-06-22
SINOHYDRO BUREAU 11 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only has no strengthening effect, but also causes a weakening of local strength

Method used

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  • High-dispersion steel fiber reinforced concrete and construction technology thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] Specifically illustrate a kind of high-dispersion steel fiber concrete provided by the present invention, the formula and proportion of the steel fiber material concrete according to weight parts, wherein cement is 276~390 parts, water is 163~180 parts, sand is 720~ 739 parts, 974-1035 parts of stones, 49-85 parts of coal powder, 49-64 parts of mineral powder, 4.25-7.00 parts of water reducing agent and 50-78.5 parts of steel fiber. In this embodiment, the steel fiber It is shear-type wavy fiber with a length of 25-50 mm and a diameter of 0.3-0.8 mm, see Table 1 for content.

Embodiment 2

[0021] A high-dispersion steel fiber concrete provided in this example is improved on the basis of Example 1. According to the formula and proportion by weight, 276 parts of cement, 170 parts of water, and 750 parts of sand , 673 parts of stones with a particle size of 10-20mm, 362 parts of stones with a particle size of 5-10mm, 85 parts of coal powder, 64 parts of mineral powder, 4.25 parts of water reducing agent and 78.5 parts of steel fiber.

Embodiment 3

[0023] A high-dispersion steel fiber concrete provided in this embodiment is improved on the basis of Example 1. The steel fiber material concrete is formulated and proportioned according to parts by weight, wherein the cement is 390 parts and the water is 163 parts. 720 parts of sand, 647 parts of stones with a particle size of 10-20mm, 348 parts of stones with a particle size of 5-10mm, 49 parts of coal powder, 49 parts of mineral powder, 5.84 parts of water reducing agent and 78.5 parts of steel fiber .

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Abstract

The invention relates to the technical field of building construction, in particular to high-dispersion steel fiber reinforced concrete and a construction technology thereof. The high-dispersion steel fiber reinforced concrete comprises, by weight, 276-390 parts of cement, 163-180 parts of water, 720-739 parts of sand, 974-1035 parts of gravel, 49-85 parts of coal dust, 49-64 parts of mineral powder, 4.25-7.00 parts of water reducing agent and 50-78.5 parts of steel fibers. During production, mixing uniformity and consistency in color of a steel fiber reinforced concrete mixture can be guaranteed, segregation and bleeding and steel fiber agglomeration can be avoided, and accordingly the performance of the high-dispersion steel fiber reinforced concrete can meet on-site construction requirements.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a high-dispersion steel fiber concrete and a construction process thereof. Background technique [0002] In the prior art, fiber reinforced concrete is an important means of concrete modification, and steel fiber reinforced concrete is one of them. The application of steel fiber reinforced concrete began in the 1960s. With the improvement of fiber shape and construction technology, since the 1970s, the scope of use of steel fiber reinforced concrete has continued to expand, and its superiority has also been continuously reflected. It is a new type of composite material formed by adding an appropriate amount of steel fibers to ordinary concrete. In recent years, steel-brazed concrete has developed rapidly at home and abroad. It overcomes the shortcomings of low tensile strength, low ultimate elongation, and brittleness of concrete, and has excellent tensile strength...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/48
CPCC04B28/00C04B14/48
Inventor 周媛媛何彩云周晓通
Owner SINOHYDRO BUREAU 11 CO LTD
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