Concrete and concrete additive thereof

Abstract

The invention discloses concrete and a concrete additive thereof and belongs to the technical field of concrete. The concrete additive comprises, by weight, 4-16 parts of coal ash, 4-10 parts of silicon dioxide powder, 4-16 parts of polypropylene fibers, 1-9 parts of calcium powder, 1-9 parts of lignin sulfonic acid calcium powder and 4-10 parts of acrylic emulsion. By the application of the concrete additive, toughness and compressive strength of the concrete can be improved, and service life can be prolonged; the concrete made by the concrete additive is good in tensile strength, fracture resistance and crack resistance, low in cost, simple in production process and applicable to scale production.

Description

technical field [0001] The invention relates to a concrete additive and concrete thereof, belonging to the technical field of concrete. Background technique [0002] Concrete, referred to as "concrete" for short, usually refers to using cement as the cementitious material, sand and stone as the aggregate, mixed with water in a certain proportion, and mixed. Concrete has the characteristics of rich raw materials, low price and simple production process, which makes it widely used. It is not only used in various civil engineering, but also in shipbuilding, machinery industry, marine development, geothermal engineering, etc. Concrete is also an important material . [0003] In practical engineering applications, concrete is often exposed to various harsh environments, such as the intrusion of corrosive media around the environment, changes in ambient temperature and humidity, freeze-thaw cycle damage, and some concrete projects are often subject to heavy load wear, etc. These ...

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to add a protective agent to the concrete to protect the concrete. The existing concrete additives have the technical shortcomings of single function and poor maintenance effect on concrete.