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Erosion-resistant concrete and preparation process thereof

A concrete and corrosion-resistant technology, applied in the field of building materials, can solve the problems affecting the service life of concrete, achieve the effect of firm interface, good mechanical properties and durability, and reduce porosity

Inactive Publication Date: 2020-12-04
浙江拓邦混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in order to achieve the purpose of environmental protection, recycled concrete is usually used to prepare new concrete. With the harsh environment of modern buildings, the demand for high-durability concrete is increasing, especially in terms of salt corrosion resistance. Affects the service life of concrete, so it still needs to be improved

Method used

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  • Erosion-resistant concrete and preparation process thereof
  • Erosion-resistant concrete and preparation process thereof
  • Erosion-resistant concrete and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The invention discloses a corrosion-resistant concrete and its preparation process. figure 1 , the preparation process includes the following steps:

[0043] S1. Raw material mixing; mix quartz sand, recycled concrete, and fly ash, add straw cut into 20mm pieces while stirring, then add 130 parts of water and stir for 5 minutes, heat up to 60°C, and then add nano-zinc oxide and acrylate and 2,2-bisphenol-based propane, stirred for 0.5h to obtain concrete raw materials;

[0044] S2. Steam-cured concrete; pour the concrete raw materials of S1 into the mold and vibrate for 60s, then pre-cure, the pre-curing temperature is 30°C, and the time is 1h; cut the pre-cured products, and then steam-cure, steam-curing temperature The temperature is 180°C, the pressure is 10MPa, the time is 7h, and the finished product is obtained after steaming.

[0045] The content of each component is shown in Table 1 below.

Embodiment 2

[0047] The invention discloses a corrosion-resistant concrete and its preparation process. figure 1 , the preparation process includes the following steps:

[0048] S1. Raw material mixing; mix quartz sand, recycled concrete, and fly ash, add straw cut into 20mm pieces while stirring, then add 170 parts of water and stir for 8 minutes, heat up to 70°C, and then add nano-zinc oxide and acrylate and 2,2-bisphenol propane, stirred for 1h to obtain concrete raw material;

[0049] S2. Steam-cured concrete; pour the concrete raw materials of S1 into the mold and vibrate for 60s, then pre-cure, the pre-curing temperature is 40°C, and the time is 1.5h; cut the pre-cured products, then steam-cure, and steam-cure The temperature is 200°C, the pressure is 12MPa, the time is 8h, and the finished product is obtained after steaming.

[0050] The content of each component is shown in Table 1 below.

Embodiment 3

[0052] The invention discloses a corrosion-resistant concrete and its preparation process. figure 1 , the preparation process includes the following steps:

[0053] S1. Raw material mixing; mix quartz sand, recycled concrete, and fly ash, add straw cut into 20mm pieces while stirring, then add 150 parts of water and stir for 6 minutes, heat up to 65°C, and then add nano-zinc oxide and acrylate and 2,2-bisphenol propane, stirred for 0.8h to obtain concrete raw material;

[0054]S2. Steam-cured concrete; pour the concrete raw materials of S1 into the mold and vibrate for 60s, then pre-cure, the pre-curing temperature is 35°C, and the time is 1h; cut the pre-cured products, and then steam-cure, steam-curing temperature The temperature is 190°C, the pressure is 11MPa, the time is 7.5h, and the finished product is obtained after steam curing.

[0055] The content of each component is shown in Table 1 below.

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Abstract

The invention relates to the technical field of building materials, and discloses erosion-resistant concrete and a preparation process thereof. The erosion-resistant concrete is prepared from, by weight, 420-460 parts of quartz sand, 230-270 parts of recycled concrete, 60-65 parts of fly ash, 5-10 parts of straw, 6-8 parts of nanometer zinc oxide, 5-8 parts of acrylate, 3-4 parts of 2,2-bisphenolpropane and 4-5 parts of ethanol. The invention has the following advantages and effects: the mixing of acrylate and 2,2-bisphenol propane can reduce the weak interface of the concrete, so interface bonding is firmer, and the impermeability of the concrete can be improved; the particle morphology of the nanometer zinc oxide and the fly ash can play a role in reducing water in the concrete, so theconcrete is denser; and acrylate is dissolved in hot ethanol, and the obtained mixture can improve the compatibility among the components, so the overall performance and the salt corrosion resistanceof the concrete are improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an erosion-resistant concrete and a preparation process thereof. Background technique [0002] Concrete is one of the most important civil engineering materials at present. It is composed of cementitious materials, granular aggregates (also known as aggregates), water, and additives and admixtures added when necessary, prepared in a certain proportion, uniformly stirred, densely formed, cured and hardened. artificial stone. [0003] At present, in order to achieve the purpose of environmental protection, recycled concrete is usually used to prepare new concrete. With the harsh environment of modern buildings, the demand for high-durability concrete is increasing, especially in terms of salt corrosion resistance. It affects the service life of concrete, so it still needs to be improved. Contents of the invention [0004] In view of the deficiencies in the prior art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02
CPCC04B28/021C04B2201/50C04B2201/52C04B14/06C04B18/167C04B18/24C04B22/06C04B24/008C04B24/026C04B24/045C04B24/121C04B24/08C04B24/383
Inventor 计晓隆刘志华贾进丰
Owner 浙江拓邦混凝土有限公司
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