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High strength steel fibre concrete and making method thereof

A high-strength concrete and steel fiber technology, applied in the field of concrete, can solve the problems of high compressive strength, poor toughness, and poor frost resistance, and achieve the effects of high compressive strength, large bearing capacity, and good frost resistance.

Inactive Publication Date: 2003-10-29
杨果林 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Cement concrete products generally have high compressive strength, but have low flexural and tensile strength, poor toughness, and poor frost resistance (not suitable for construction in winter). increases, the production process becomes complex

Method used

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Examples

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Embodiment Construction

[0008] The following are non-limiting examples of the invention:

[0009] Used to make steel fiber high-strength concrete manhole covers

[0010] Concrete formula (percentage by weight): 20% cement, 3.5% fly ash, 4.5% silica fume, 5% water, 2.5% steel fiber, 23% sand, 34.3% crushed stone, 0.25% water reducer, cold rolled ribbed Rebar 7%.

[0011] Production method: 1. Preparation of raw materials and mold preparation of the cover plate and cover seat of the manhole cover, and distributing steel bars in the mold of the cover plate and cover seat. 2. Raw materials are mixed according to the specified ratio. 3. The cement , fly ash, and silica fume are poured into the mixer and mixed for 2-3 minutes. 4. Then, the coarse and fine aggregate gravel and sand are poured into the mixer and mixed for 2-3 minutes. 5. The water reducer is dissolved in water 6. Pour the water dissolved in the water reducer into the mixer for wet mixing for 3-5 minutes. 7. Disperse the steel fibers in the...

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Abstract

A steel fibre reinforced high-strength concrete is prepared from cement, flyash, silicon ash, water, steel fibres, sand, broken stone and water-reducing agent through providing raw materials and mould, sequentially and proportionally mixing, stirring, pouring in mould, vibration, natural curing, demoulding, standard curing and inspection.

Description

technical field [0001] The invention belongs to the technical field of concrete, and relates to a steel fiber high-strength concrete and a manufacturing method thereof. Background technique [0002] Cement concrete is the main building material in buildings. It is generally made of cement, sand, gravel, and water. After mixing evenly, it is formed and solidified. Cement concrete products generally have high compressive strength, but have low flexural and tensile strength, poor toughness, and poor frost resistance (not suitable for construction in winter). increase, the production process becomes complicated. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a steel fiber high-strength concrete and a manufacturing method thereof aiming at the shortcomings of existing concrete. [0004] The technical solution adopted to solve the technical problem of the present invention is that the steel fiber high-strength concr...

Claims

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Application Information

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IPC IPC(8): C04B14/02C04B14/48C04B18/08C04B28/04
CPCY02W30/91
Inventor 杨果林林小松
Owner 杨果林
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