Concrete formula for bridge construction and preparation method thereof

A bridge construction and concrete technology, applied in the field of concrete formulation and preparation for bridge construction, can solve the problems of acid-resistant and salt-resistant concrete without high performance, achieve high cohesion, improve salt-resistant performance, specific surface area, etc. big effect

Inactive Publication Date: 2018-01-12
韩为国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the existing concrete used for bridge construction. Because the position of bridge construction is in the water all the year round, the requirements for acid resistance and salt resistance are very strict. At present, there is no high-performance acid-resistant concrete on the market. Concrete issues of resistance and salt resistance

Method used

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  • Concrete formula for bridge construction and preparation method thereof
  • Concrete formula for bridge construction and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The invention provides a concrete formula for bridge construction, which comprises the following components in weight percent: 50% cement, 50% sand, 10% fly ash, 5% aggregate, 5% slag, 5% silicon powder, polyvinyl chloride 5%, water glass 5%, foaming agent 3%, foam stabilizer 0.6%.

[0024] The preparation method is as follows:

[0025] Step 1: Put the sand into the mixing chamber and stir thoroughly for 5-10 minutes, then screen the stirred sand through a screen, leaving a fineness modulus of 2.66, a bulk density of 1490kg / m3, and an apparent density of 2430kg / m3, fine sand with a mud content of 0.7%;

[0026] Step 2: Pour the fine sand and fly ash described in step 1 into the mixing bin, and fully stir for 5 to 10 minutes, so that the fine sand and fly ash are fully fused, and the particle size of the mixture is less than 5mm;

[0027] Step 3: put the aggregate into the grinding tube, and grind it fully for 15-20 minutes, so that the aggregate can form a bone powde...

Embodiment 2

[0039] The invention provides a concrete formula for bridge construction, which comprises the following components in weight percent: 40% cement, 20% sand, 3% fly ash, 3% aggregate, 3% slag, 3% silicon powder, polyvinyl chloride 2%, water glass 2%, foaming agent 1%, foam stabilizer 0.3%.

[0040] The preparation method is as follows:

[0041]Step 1: Put the sand into the mixing chamber and stir thoroughly for 5-10 minutes, then screen the stirred sand through a screen, leaving a fineness modulus of 2.66, a bulk density of 1490kg / m3, and an apparent density of 2430kg / m3, fine sand with a mud content of 0.7%;

[0042] Step 2: Pour the fine sand and fly ash described in step 1 into the mixing bin, and fully stir for 5 to 10 minutes, so that the fine sand and fly ash are fully fused, and the particle size of the mixture is less than 5mm;

[0043] Step 3: put the aggregate into the grinding tube, and grind it fully for 15-20 minutes, so that the aggregate can form a bone powder ...

Embodiment 3

[0055] The invention provides a concrete formula for bridge construction, which comprises the following components in weight percent: 50% cement, 20% sand, 10% fly ash, 3% aggregate, 5% slag, 3% silicon powder, polyvinyl chloride 5%, water glass 2%, foaming agent 3%, foam stabilizer 0.3%.

[0056] The preparation method is as follows:

[0057] Step 1: Put the sand into the mixing chamber and stir thoroughly for 5-10 minutes, then screen the stirred sand through a screen, leaving a fineness modulus of 2.66, a bulk density of 1490kg / m3, and an apparent density of 2430kg / m3, fine sand with a mud content of 0.7%;

[0058] Step 2: Pour the fine sand and fly ash described in step 1 into the mixing bin, and fully stir for 5 to 10 minutes, so that the fine sand and fly ash are fully fused, and the particle size of the mixture is less than 5mm;

[0059] Step 3: put the aggregate into the grinding tube, and grind it fully for 15-20 minutes, so that the aggregate can form a bone powde...

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Abstract

The invention discloses a concrete formula for bridge construction and a preparation method thereof. The concrete formula comprises the following components by weight percent: 40-50% of cement, 20-50%of sand, 3-10% of coal ash, 3-5% of aggregates, 3-5% of slag, 3-5% of silicon powder, 2-5% of polyvinyl chloride, 2-5% of sodium silicate, 1-3% of a foaming agent and 0.3-0.6% of a foam stabilizing agent; polyvinyl chloride is added and the characteristics of polyvinyl chloride are utilized to reduce the crystallization of soluble salts in concrete, so that the salt tolerance of the concrete is greatly promoted; the sodium silicate is added, the silica gel and solid are the main components after the sodium silicate is hardened, and the specific surface area is large, so that the adhesion force is higher and the concrete is capable of resisting against almost all the inorganic acids and organic acids except for hydrofluoric acid, heat phosphoric acid and higher aliphatic acid.

Description

technical field [0001] The invention relates to a concrete for bridge construction, in particular to a concrete formula for bridge construction and a preparation method thereof. Background technique [0002] Bridge construction is the process of building a bridge according to the design content; it mainly refers to bridge construction technology and construction organization, construction management, construction quality, etc. The most important material in bridge construction is concrete. Concrete, referred to as concrete: refers to the collective name of 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) in a certain proportion, also known as ordinary concrete, which is widely used in civil engineering, Inorganic cementitious materials such as ceme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/10C04B111/20C04B111/40
Inventor 韩为国
Owner 韩为国
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