Concrete reinforcing agent as well as preparation method and application thereof

Abstract

The invention discloses a concrete reinforcing agent which is mainly prepared from the following components by mass parts: 30-40 parts of an isopropanolamine compound, 10-12 parts of triethanolamine, 1-5 parts of polyalcohol and 3-5 parts of sodium thiosulfate. The preparation method comprises the following steps: preparing the isopropanolamine compound, mixing the isopropanolamine compound, triethanolamine, polyalcohol and sodium thiosulfate with water, adding water for diluting, and uniformly stirring to obtain the concrete reinforcing agent. When being applied, the concrete reinforcing agent is directly mixed with cement, mineral powder, coal ash, a water reducing agent, water, sand and stone. The concrete reinforcing agent is well adaptive to an additive, and the later concrete strength is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, in particular to a concrete reinforcing agent and its preparation method and application. Background technique [0002] Concrete is the largest building structure material for human beings. It is composed of cementitious materials (cement, fly ash, mineral powder, etc.), aggregates (including sand, stone, etc.) and liquid media (water, admixtures, etc.) Mixed composite material system. Concrete is also a complex multiphase composite material system. The interface transition zone between different phases is the most important factor affecting the comprehensive performance of concrete. Many quality problems of concrete (such as insufficient strength, cracks, etc.) are ultimately caused by the interface transition zone. caused by defects. Although ready-mixed concrete has made considerable progress, the "three highs" of high cement consumption, high water consumption, and high water-ce...

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Problems solved by technology

[0007] Judging from the large number of existing published documents, there are mainly the following defects: 1) The existing reinforcing agent products are more aimed at the production process of pure cement, and there are relatively few reinforcing agent products specifically for concrete. However, the relationship between cement and concrete The composition and performance of materials are quite different. If the cement-type reinforcing agent is directly copied into concrete, the effect will often change greatly, and it is difficult to achieve the expected reinforcement purpose; 2) The existing concrete-type reinforcing agent is different from the current concrete production The admixtures are not very adaptable, and some reinforcing agents are suitable for naphthalene-based water reducing agents, but they have almost no effect on polycarboxylic acid and aliphatic water reducing agents; 3) Some existing concrete reinforcing agent products are not only difficult to prepare, but also Moreover, the cost is high, and the improvement of concrete performance needs to be further improved; 4) It is difficult to obtain raw materials for some existing concrete reinforcement products, and the products are poor in environmental protection and easy to cause environmental pollution, which runs counter to the concept of green buildings; 5) In addition, Some of the existing concrete reinforcing agents contain a certain amount of inorganic salts, which pose a certain risk to the durability of concrete, and have a limited effect on the strength increase rate of concrete in the later period.

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