Cold-resistant crack-resistant concrete mold release agent and preparation method thereof

Abstract

The invention discloses a cold-resistant crack-resistant concrete mold release agent and a preparation method thereof. The cold-resistant crack-resistant concrete mold release agent is composed of the following raw materials in parts by weight: 33-35 parts of epoxy resin, 25-30 parts of modified tung oil, 4-5 parts of propanediol, 0.8-1.2 parts of Peregal O, 4-5 parts of sodium carbonate, 0.2-0.4 part of chitin, 0.5-0.6 part of sodium alginate, 0.2-0.4 part of fumaric acid, 4-5 parts of sodium acetate, 0.8-1.0 part of dimethyl phthalate, 2-4 parts of barium sulfate, 0.4-0.5 part of maleic anhydride, 4-5 parts of linoleic acid and 400-500 parts of deionized water. The cold-resistant crack-resistant concrete mold release agent ensures the water retention property during concrete finishing, prevents the concrete from sticking to the mold, and ensures the smoothness of the concrete. The prepared concrete does not have the phenomenon of hollowing, peeling or the like, and has the advantages of excellent crack resistance, favorable constructability and low cost.

Description

technical field [0001] The invention provides a concrete release agent, in particular to a cold-resistant and crack-resistant concrete release agent and a preparation method thereof. Background technique [0002] Concrete release agent is also called concrete release agent or release lubricant; it is a substance that is applied to the inner wall of the formwork to lubricate and isolate, so that the concrete can be smoothly separated from the formwork when the formwork is removed, and the shape of the concrete is kept intact. The traditional release agent The mold material is made of engine oil or waste engine oil plus diesel oil. In the long-term construction of water conservancy, hydropower, highways, railways and other projects, it is found that the use of waste engine oil to paint the formwork will pollute the concrete surface and cause different degrees of pollution to the environment; but The existing release agent has poor demoulding effect, is difficult to remove on t...

AI Technical Summary

Problems solved by technology

[0002] Concrete release agent is also called concrete release agent or release lubricant; it is a substance that is applied to the inner wall of the formwork to lubricate and isolate, so that the concrete can be smoothly separated from the formwork when the formwork is removed, and the shape of the concrete is kept intact. The traditional release agent The mold material is made of engine oil or waste engine oil plus diesel oil. In the long-term construction of water conservancy, hydropower, highways, railways and other projects, it is found that the use of waste engine oil to paint the formwork will pollute the concrete surface and cause different degrees of pollution to the environment; but The existing release agent has poor demoulding effect, is difficult to remove on the formwork, and is not effective in maintaining the formwork, which affects the construction efficiency and increases the construction cost