A kind of wet-mixed mortar admixture and preparation method thereof

Abstract

The invention discloses an admixture of a wet-mixed mortar. The admixture is prepared from preliminary applicable cement materials, basic additives and reinforcing additives, wherein the preliminary applicable cement materials are prepared from fly ash, limestone, iron powder and diatom ooze; the basic additives are prepared from allyl polyoxyethylene ether, butyl acrylate, a catalyst, a set retarder, an air entraining agent and a redox agent; the reinforcing additives are prepared from a pumping agent, an anti-cracking agent and an anti-freezing agent. The admixture has the advantages that the cost is reduced, the preparation technology is simple, the environment-friendly effect is realized, the later cracking is effectively reduced, the water-reduction, set-retarding, adhering and air entrapping properties are effectively improved, the anti-cracking and anti-freezing properties are improved, and the pumping efficiency is improved in the transportation process.

Description

technical field [0001] The invention relates to the field of cement materials, in particular to a wet-mixed mortar admixture and a preparation method thereof. Background technique [0002] Mortar admixture is a kind of construction additive used in construction. There are many varieties on the market, such as Lime King, Modele, Rock Sand Essence, Mortar King, Mortar Treasure, Cement Additive, Cement Plasticizer, etc. , which can change the cement to improve various properties during wet mixing, such as strength, tensile and compressive properties, water-reducing properties or reduce cracking after pouring. [0003] Existing mortar admixtures all use a single synthetic structure, but as the construction industry becomes more and more strict about quality and follow-up issues, the composition of admixtures is becoming more and more reasonable, while most of the existing admixtures are only It contains several components, and its function is relatively single, while some admix...

AI Technical Summary

Problems solved by technology

[0003] Existing mortar admixtures all use a single synthetic structure, but as the construction industry becomes more and more strict about quality and follow-up issues, the composition of admixtures is becoming more and more reasonable, while most of the existing admixtures are only It contains several components, and its function is relatively single, while some admixtures are made of dry powder. For example, patent No. CN200810029969.6 discloses a dry powder mortar admixture suitable for new wall materials and its preparation method. It will inevitably cause dust in the surrounding environment. Even if workers wear masks, they cannot completely avoid inhaling dust. Therefore, this type of admixture can only be used in some special occasions. It is relatively poor, which is equivalent to picking up hemp and losing watermelon. Therefore, there is a need for an admixture on the market that needs to be strengthened in all aspects to add to cement mortar to improve mortar performance.