Decoration type ultra-high-performance concrete material and preparation method thereof

Abstract

The invention discloses a decoration type ultra-high-performance concrete material and a preparation method thereof, wherein the decoration type ultra-high-performance concrete material comprises, byweight, 90-110 parts of white cement, 22-32 parts of white silica fume, 24-32 parts of quartz powder, 18-26 parts of heavy calcium powder, 190-220 parts of white quartz sand, 2-4 parts of a preservative, 2.5-4 parts of organic fiber, 2.7-4.5 parts of a polycarboxylic acid efficient water reducing agent, 0.006-0.01 part of a defoamer, and 20-27 parts of water. The invention further discloses a preparation method of the decoration type ultra-high-performance concrete material. According to the present invention, the decoration type ultra-high-performance concrete material can be used for preparing various special-shaped structures, has excellent decorative performance, can achieve excellent decoration effect, and further has characteristics of excellent mechanical property, excellent durability and broad application prospects; and the preparation method has characteristics of simpleness, convenience, easy performing, low cost and effectively reduced construction cost.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a decorative ultra-high performance concrete material and a preparation method thereof. Background technique [0002] Decorative concrete is a green and environmentally friendly material that has been popular in the United States, Canada, Australia, and Europe in recent years and has been rapidly promoted in major developed countries in the world. It can create various natural marbles, granites, bricks, tiles, etc. through creative designs of colors, shades, textures, styles, textures, mechanisms and irregular lines, organic combinations of patterns and colors on the original surface of old and new concrete. The laying effect of natural stone such as wooden floor has the characteristics of beautiful and natural graphics, real and durable colors, and durable texture. [0003] In recent years, the research boom of ultra-high performance concrete is unprecedented. Due to...

AI Technical Summary

Problems solved by technology

However, this system cannot be applied in the field of architectural decoration. The existing ultra-high performance concrete cannot meet the decorative performance requirements of decorative concrete in terms of the whiteness of the color. Gray, dark gray, and light black colors are the current ultra-high performance concrete. The main color system is seriously insufficient in whiteness, which is not harmful to the load-bearing structure of the building, but it cannot meet the aesthetic design requirements such as building exterior finishes

In addition, the use of ultra-high performance concrete for decorative concrete materials also has the following problems: the amount of cementitious materials in ultra-high performance concrete is as high as 900-1400kg / m 3 , the system has a large heat of hydration and is prone to shrinkage problems; the low water-binder ratio, high content of ultra-fine particles and superplasticizers make the ultra-high performance concrete more viscous, which is not conducive to its pouring and molding