Humidifying concrete and preparation method thereof

Abstract

The invention relates to humidifying concrete and a preparation method thereof. The humidifying concrete is prepared from the following components in parts by weight: 65 to 85 parts of aggregate, 15 to 30 parts of Portland cement, 8 to 16 parts of activated water, 5 to 10 parts of humidifying material, 4 to 8 parts of admixture, 1 to 5 parts of sodium bicarbonate, 0.1 to 0.3 part of sodium stearate, 0.001 to 0.015 part of photosynthetic bacteria and 0.1 to 0.4 part of water reducing agent. The humidifying material comprises sodium polyacrylate, montmorillonite powder and zeolite powder in a mass ratio of 1 to (0.1 to 0.3) to (0.3 to 0.5). The preparation method specifically comprises the following steps of S1, base material mixing: fully stirring and mixing the aggregate, the admixture andthe Portland cement to prepare a mixture; S2, auxiliary agent adding: adding the activated water and a water reducing agent into the mixture and fully stirring; S3, auxiliary material adding: sequentially adding the humidifying material, the sodium stearate, the photosynthetic bacteria and the sodium bicarbonate and continuously stirring to obtain concrete slurry; and S4, molding: pouring and vibrating the concrete slurry to mold the concrete slurry. The invention has the effect of improving the humidifying performance of the humidifying concrete.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a humidity-adjusting concrete and a preparation method thereof. Background technique [0002] With the vigorous development of commercial concrete in our country, the concrete industry has become a pillar industry in the field of building materials. Concrete is one of the most important contemporary civil engineering materials. It has the characteristics of abundant raw materials, low price and simple production process. These characteristics make it widely used. It is not only used in various civil engineering, but also in shipbuilding and machinery industries Concrete is also an important material in industries such as marine development and geothermal engineering. [0003] With the continuous development of the concrete industry and the improvement of people's living standards, residents' functional requirements for building materials have also increased. In order ...

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Problems solved by technology

[0005] The above-mentioned existing technical solutions have the following defects: in the above-mentioned solutions, only zeolite powder is used as the humidity-regulating material. Zeolite powder belongs to natural mineral humidity-conditioning materials, and its moisture absorption is small. When the air humidity is high, it is easy to reach a saturated state

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