A preparation process and construction method of internal self-vacuum surface self-impregnated high-durability polymer concrete

Abstract

The invention discloses a preparation process and construction method for high-durability polymer concrete with a self-vacuumization interior and a self-impregnation surface. The preparation process comprises the following steps: spraying an aqueous solution of a polymer monomer onto geosynthetic cloth arranged on the inner surface of a template, or inlaying solid polymer monomer powder into a geosynthetic material during weaving of the geosynthetic material and then arranging the obtained geosynthetic geosynthetic cloth on the inner surface of the template; and pouring concrete. The invention also discloses the construction method for the high-durability polymer concrete with the self-vacuumization interior and the self-impregnation surface. The construction method is simple, needs no special equipment and has no substantial difference from traditional construction methods for concrete; the composition and sources of raw materials are rich; and the prepared concrete has substantially improved surface compaction degree, impervious performance and durability, and can prolong the service life of a project, reduce investment and improve project benefits.

Description

Technical field [0001] The invention relates to an internal self-vacuum surface self-dipping high-durability polymer concrete preparation process and construction method. Background technique [0002] During the construction of the concrete, the internal air bubbles are expelled through vibrating to make the concrete compact. The sides and bottom of the concrete are restricted by steel bars and formwork, resulting in lower vibration energy, less aggregate, more mortar, and less compactness. , The quality of the external concrete is worse than that of the internal, forming a "silver-covered gold" structure. The surface of concrete is in direct contact with the outside world and is easily corroded by aggressive media in the environment. In order to make the concrete have good durability, the surface of the concrete is required to have better properties, especially the degree of compactness and impermeability, but the current production technology The surface quality of the concret...

AI Technical Summary

Problems solved by technology

However, impregnated concrete requires special equipment and is not suitable for on-site implementation. The applicable concrete structure forms and sizes are limited, and the investment and cost are high, so it cannot be used on a large scale.