A kind of antifreeze concrete pumping agent

Abstract

The invention discloses an antifreeze concrete pumping agent, which is composed of the following raw materials in parts by weight: 10-20 parts of triethanolamine; 5-10 parts of phase change emulsion; 5-15 parts of polycarboxylate water reducer; carboxymethyl fiber 5-6 parts of element; 2-5 parts of 2-hydroxyethyl acrylate; 3-5 parts of maleic anhydride; 5-10 parts of ammonium chloride; 0.1-0.15 parts of calcium tungstate; 0.1-0.15 parts of zinc tungstate; 5-15 parts of sodium citrate; 12-30 parts of water; wherein, the preparation method of the phase change emulsion is as follows: 10-12 parts by weight of hydroxyl silicone oil, 2-5 parts by weight of sodium n-decanesulfonate and 20 parts by weight of water ‑30 parts are fully mixed, placed in a shearing machine, while shearing and stirring, slowly add 2‑5 parts of hard fatty acid and 1‑2 parts of palm oil dropwise. The antifreeze concrete pumping agent of the invention has good water reducing properties and good antifreeze properties.

Description

technical field [0001] The invention relates to an antifreeze concrete pumping agent and a preparation method thereof, belonging to the field of building material manufacturing. Background technique [0002] Concrete is an important building material in the construction industry. Pumping agent refers to an admixture that can improve the pumping performance of concrete mixture. Good viscoplastic properties. [0003] With the development of concrete technology, the requirements for concrete admixtures are also constantly increasing. Multifunctional and composite concrete admixtures have become one of the development directions. In the past, for a long time, pumping agents and antifreeze agents were mixed separately. However, the "double mixing" of antifreeze and pumping agent will not only cause inconvenience to the construction, but also often bring quality problems to the project. For example, the pumping agent and antifreeze are mixed with air-entraining group Time-sharin...

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Problems solved by technology

[0003] With the development of concrete technology, the requirements for concrete admixtures are also constantly increasing. Multifunctional and composite concrete admixtures have become one of the development directions. In the past, for a long time, pumping agents and antifreeze agents were mixed separately. However, the "double mixing" of antifreeze and pumping agent will not only cause inconvenience to the construction, but also often bring quality problems to the project. For example, the pumping agent and antifreeze are mixed with air-entraining group time-sharing will seriously affect the strength of concrete

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