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High-strength corrosion-resistant concrete material and application thereof

A concrete and corrosion-resistant technology, applied in the field of concrete, can solve the problems of low mechanical strength, heavy maintenance work, easy to rust, etc., and achieve the effects of good stability, high mechanical strength, and improved foaming effect.

Active Publication Date: 2016-08-10
NANJING JINYUE NEW BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this kind of pole and tower structure is a metal structure, it is prone to corrosion, so the service life is short and the maintenance workload is heavy.
However, the mechanical strength of traditional ordinary concrete poles is not high, so it is difficult to apply to high-voltage power transmission lines, unless the cross-section is made relatively large, but this not only increases the self-weight, but also makes the construction very difficult. More importantly, it also increases cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-strength corrosion-resistant concrete material prepared from the following raw materials:

[0023] Ordinary Portland cement, river sand, fly ash, sepiolite, zeolite, epoxy acrylate resin, polypropylene fiber, sodium dodecylbenzenesulfonate, sodium monofluorophosphate, calcium stearate, mica powder , rice straw powder, peanut shell powder, soybean meal, water.

[0024] Among them, ordinary Portland cement is No. 42.5; the particle size of river sand is 1 mm; the particle size of fly ash is 100 μm; the particle size of rice straw powder and peanut shell powder is 0.5 mm.

[0025] The preparation technology of above-mentioned concrete material comprises the steps:

[0026] Mix sepiolite and zeolite according to the mass ratio of 1:1, and then put them into the crusher for crushing. The crushing rate is 200r / min, and the crushing time is 5min. min, the ball milling time is 10min to obtain the mixture A;

[0027] Mix water, epoxy acrylate resin, polypropylene fiber...

Embodiment 2

[0031] A high-strength corrosion-resistant concrete material prepared from the following raw materials:

[0032] Ordinary Portland cement, river sand, fly ash, sepiolite, zeolite, epoxy acrylate resin, polypropylene fiber, sodium dodecylbenzenesulfonate, sodium monofluorophosphate, calcium stearate, mica powder , rice straw powder, peanut shell powder, soybean meal, water.

[0033] Among them, ordinary portland cement is No. 42.5; the particle size of river sand is 3 mm; the particle size of fly ash is 300 μm; the particle size of rice straw powder and peanut shell powder is 1 mm.

[0034] The preparation technology of above-mentioned concrete material comprises the steps:

[0035] Mix sepiolite and zeolite according to the mass ratio of 1:1, and then put them into the crusher for crushing. The crushing rate is 200r / min, and the crushing time is 5min. min, the ball milling time is 10min to obtain the mixture A;

[0036] Mix water, epoxy acrylate resin, polypropylene fiber, ...

Embodiment 3

[0040] The performance test of the concrete slurry prepared by embodiment 1 and embodiment 2, the slurry is placed in the steel bar abrasive tool, finalized, and maintained for 2 days, and the specific parameters detected are shown in Table 1:

[0041] Table 1

[0042] The curing time is 2 days Example 1 Example 2 Compressive strengthMpa 123.2 117.8 Flexural strength Mpa 13.9 14.1 Water penetration rate% none none Reinforcement bond strength Mpa 16.6 17.1 Corrosion to steel none none Soak in 6% salt water for 100 days No porosity and peeling No porosity and peeling

[0043] Conclusion: the concrete material of the invention has high compressive and flexural strength, no corrosion, salt resistance, light weight, and is suitable for pole towers and building materials.

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Abstract

The invention discloses a high-strength corrosion-resistant concrete material, which belongs to the technical field of concrete. The concrete material is prepared from the following raw materials: ordinary Portland cement, river sand, fly ash, meerschaum, zeolite, epoxy acrylate resin, polypropylene fiber, sodium dodecyl benzene sulfonate, sodium monofluorophosphate, calcium stearate, mica powder, paddy rice straw powder, peanut shell powder, soybean meal and water. The concrete material provided by the invention has high compressive strength and flexural strength, no corrosion, salt resistance and light weight and is applicable as a tower and building body material.

Description

technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to a high-strength corrosion-resistant concrete material and its application. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Concrete, which is widely used in civil engineering. Concrete refers to a mixture made of cement (organic, inorganic or organic-inorganic composite), granular aggregates, water, chemical admixtures and mineral admixtures that need to be added in appropriate proportions, or After hardening, it forms a composite material with an accumulation structure (usually cementitious material, w...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B14/04C04B14/06C04B14/20C04B16/06C04B18/08C04B18/24C04B22/16C04B24/04C04B24/20C04B24/26
CPCC04B28/04C04B14/068C04B18/08C04B14/042C04B14/047C04B16/0633C04B24/20C04B22/16C04B24/04C04B14/20C04B18/248C04B24/26Y02W30/91
Inventor 徐弘涛
Owner NANJING JINYUE NEW BUILDING MATERIALS CO LTD
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