Building additive material and preparation method thereof

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...

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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 waterproof effect is only limited to the surface of the concrete base surface. Once the base surface is cracked, worn or weathered, it can cause water seepage

The above-mentioned patents are only one-time waterproofing, and cannot have multiple anti-seepage capabilities when the concrete structure is re-penetrated by water or partially damaged and cracked, and cannot solve the re-cracking and seepage caused by the instability of the volume of ordinary concrete structures

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