Building additive material and preparation method thereof

An additive material and construction technology, applied in the field of construction additive processing, can solve the problems of imperviousness, limited penetration distance, water seepage, etc., achieve good stability and practicability, simple preparation method, and improve the effect of impermeability

Inactive Publication Date: 2019-05-17
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although the above-mentioned patent can penetrate into the concrete and react in the capillary pores to produce crystals to block the channels, the strength of the crystals cannot be guaranteed and the channels cannot be completely blocked, so the compressive strength and waterproof effect are poor, and the application site is the concrete base surface. Its penetration distance is limited, and the thickness of the waterproof layer is relatively thin. The wat

Method used

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  • Building additive material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: prepare construction additive material as follows:

[0032] 1. Selection and pre-preparation of raw materials:

[0033] Zinc oxide is in powder state, the average particle size of powder is 4μm, except zinc oxide composite powder material, cuprous oxide / zinc oxide composite material, other raw materials are pure substances, the content is more than 99.9%, the average particle size of solid phase powder is 8 μm.

[0034] The cuprous oxide / zinc oxide composite material is prepared as follows:

[0035] (1) Mix 1L, 0.5mol / L copper sulfate solution and 5g polyethylene glycol with an average molecular weight of 300, then stir at 25°C for 10 minutes, and then add 2L of 0.5mol / L sodium hydroxide solution;

[0036] (2) Then add 3.13g zinc oxide, after stirring for 20 minutes, centrifuge at room temperature for 10min at 10000rpm, discard the supernatant, and centrifuge to obtain a solid;

[0037] (3) First resuspend the solid matter with deionized water 5 times the...

Embodiment 2

[0048] Embodiment 2: prepare construction additive material as follows:

[0049] 1. Selection and pre-preparation of raw materials:

[0050] Zinc oxide is in powder state with an average particle size of 8 μm. Except for zinc oxide composite powder material and cuprous oxide / zinc oxide composite material, the rest of the raw materials are pure substances with a content greater than 99.9%. The average particle size of solid phase powder is is 10 μm.

[0051] The cuprous oxide / zinc oxide composite material is prepared as follows:

[0052] (1) Mix 1L, 0.5mol / L copper sulfate solution and 7g of polyethylene glycol with an average molecular weight of 1200, then stir at 25°C for 20 minutes, and then add 2L of 0.6mol / L sodium hydroxide solution;

[0053] (2) Then add 5.86g zinc oxide, stir after 30 minutes, 15000rpm, centrifuge at room temperature for 20min, discard the supernatant, and centrifuge to obtain a solid;

[0054] (3) First resuspend the solid matter with deionized wate...

Embodiment 3

[0065] Embodiment 3: prepare construction additive material as follows:

[0066] 1. Selection and pre-preparation of raw materials:

[0067] Zinc oxide is in powder state, the average particle size of the powder is 6μm, except zinc oxide composite powder material, cuprous oxide / zinc oxide composite material, the rest of the raw materials are pure substances, the content is more than 99.9%, the average particle size of solid phase powder 9 μm.

[0068] The cuprous oxide / zinc oxide composite material is prepared as follows:

[0069] (1) Mix 1L, 0.5mol / L copper sulfate solution and 6g of polyethylene glycol with an average molecular weight of 700, then stir at 25°C for 15 minutes, and then add 2L of 0.55mol / L sodium hydroxide solution;

[0070] (2) Then add 4.45g zinc oxide, after stirring for 25 minutes, centrifuge at room temperature for 15min at 13000rpm, discard the supernatant, and centrifuge to obtain a solid;

[0071] (3) First resuspend the solid matter with deionized ...

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Abstract

The invention discloses a building additive material and a preparation method thereof. The building additive material is prepared from the following raw materials in percentage by weight: 0.003 to 0.005 percent of sulfuric acid, 0.14 to 0.19 percent of calcium tartrate, 18 to 26 percent of tartaric acid, 0.3 to 0.6 percent of oxalic acid, 0.6 to 1.3 percent of calcium sulfate, 35 to 40 percent ofzinc oxide composite powder materials, 13 to 18 percent of cuprous oxide/zinc oxide composite body materials and the balance of zinc oxide. In a preparation process, the processes of roasting, grinding, secondary tempering and the like are used, so that good waterproof performance is realized by the invention; meanwhile, high stability and practicability are realized; the building additive material can be widely applied to the building fields and the like. The cuprous oxide/zinc oxide composite body materials are favorable for improving the intensity of the loose acicular structure; the wholeanti-seepage capability of the structure is greatly improved by the zinc oxide composite powder materials. The secondary cracking and seepage due to instability of ordinary concrete structure volume is fundamentally improved by the building additive material provided by the invention.

Description

technical field [0001] The invention relates to the processing field of building additives, in particular to a building additive material and a preparation method thereof. Background technique [0002] Concrete waterproof additive is an admixture that can reduce the water permeability of concrete under hydrostatic pressure. It can significantly improve the anti-seepage and waterproof function of concrete, and the impermeability level can reach P25 or above; at the same time, it has the effects of retarding, early strength, water reduction, and crack resistance. It can improve the workability of freshly mixed mortar and can replace lime paste. High-efficiency anti-seepage function: mixed with concrete waterproofing agent, can effectively improve the concrete pore structure, and at the same time precipitate gel to block the internal pore channels of concrete. Compared with no waterproofing agent, the anti-seepage performance can be increased by 5 to 8 times. Permanent waterpr...

Claims

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Application Information

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IPC IPC(8): C04B24/32C04B24/06
Inventor 赵浩峰夏俊
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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