High-performance concrete and preparation method thereof

Abstract

The invention discloses high-performance concrete, belonging to the field of building materials. The concrete consists of ultrafine iron powder, cement, phosphorus slag, ultrafine mineral powder and a superplasticizer, wherein the ultrafine mineral powder comprises ultrafine silica powder and ultrafine zeolite powder. The added ultrafine iron powder can enhance the concrete performance and improve durability; and the ultrafine mineral increases the concrete density and improves the thickness, and the concrete is not dispersed by water when applied to a building and thus is more uniform in a curing process to obtain high-performance concrete. The invention also discloses a preparation method of the high-performance concrete.

Description

technical field [0001] The invention relates to a concrete, specifically a high-performance concrete and a preparation method thereof, belonging to the field of building materials. Background technique [0002] With the modern development of the city, more and more buildings have sprung up, including office buildings and high-rise residential buildings, but regardless of the types of properties of these buildings, the demand for concrete is indispensable. Traditional concrete mainly includes water, cement, gravel, and sand. These are called plain concrete, which has relatively low mechanical properties and is relatively brittle. In the past, plain concrete was only used for the construction of low houses, but for today's high-rise buildings, plain concrete obviously cannot meet the performance requirements, so adding iron slag to plain concrete came into being Generally, iron slag is crushed and then added to plain concrete to stir and mix evenly. This can increase the conc...

AI Technical Summary

Problems solved by technology

In the past, plain concrete was only used for the construction of low houses, but for today's high-rise buildings, plain concrete obviously cannot meet the performance requirements, so adding iron slag to plain concrete came into being Generally, iron slag is crushed and then added to plain concrete to stir and mix evenly. This can increase the concrete’s bearing pressure, reduce brittleness, and prolong the working life of concrete materials. However, the potential defect of iron slag lies in the If the crushing is not fine enough or the particle size of other concrete materials is not fine enough, the filling of the concrete prepared by this method is not enough, resulting in poor compactness, which will greatly reduce the performance of concrete. Therefore, how to improve the compactness of concrete, Obtaining high-performance concrete has always been a technical problem to be solved by those skilled in the art