Surface protecting agent for fair-faced concrete and preparation method of surface protecting agent

Abstract

The invention provides a surface protecting agent for fair-faced concrete. The surface protecting agent is characterized by being composed of the following raw materials, in parts by weight: 40-60 parts of a phosphorylcholine polyricinoleate fluorosilicone copolymer, 10-15 parts of magnesium gluconate hydrate, 10-15 parts of attapulgite powder, 10-15 parts of surface-modified porous hollow cage-shaped titanium oxide, 5-10 parts of alginic acid fibers, 2-5 parts of a defoaming agent, 30-50 parts of water, and 1-3 parts of a PH regulating agent. The invention also discloses a preparation methodof the surface protecting agent for the fair-faced concrete. The surface protecting agent for the fair-faced concrete disclosed by the invention has low preparation costs, good durability, good protection to the fair-faced concrete and excellent comprehensive performance, can realize blocking of capillary pores of the surface of the fair-faced concrete, make a surface structure of the concrete more compact and prevent water and other erosive media from entering the concrete, and is safe and environmentally-friendly during use.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a fair-faced concrete surface protective agent and a preparation method thereof. Background technique [0002] With the vigorous development of infrastructure, concrete is playing an increasingly important role in ports, docks, and urban construction. It is the most widely used man-made material in contemporary times, and has the characteristics of abundant raw materials, low prices, and simple production processes. Fair-faced concrete is a one-time pouring of concrete without any external plastering and other decorations. It uses the natural state of the concrete and the combination of well-designed open joints, Zen joints and pull bolt holes as the architectural expression of decoration. , widely used in industrial buildings, medium and high civil engineering, public buildings and municipal bridges, has received more and more attention. [0003] Clear-water concrete...

AI Technical Summary

Problems solved by technology

However, the traditional clear-water concrete protective agent has a single function, and its protective effect on clear-water concrete is unsatisfactory. Its salt water resistance and other weather resistance properties are insufficient, resulting in poor protection of clear-water concrete.

[0005] The patent application document with the publication number CN103214265B discloses a preparation method of a water machine permeable concrete protective agent. This protective agent mainly penetrates into the interior of the concrete and forms plugs in the capillary channels of the concrete to fill the internal voids. This prevents the entry of moisture, but it will cause poor weather resistance of the concrete and affect its air permeability