Color additive of cement concrete and color steel fibre concrete with said additive

Abstract

The color additive consists of coloring agent, dispersant, composite early strength effective water reducing agent and swelling agent. Specifically, it consists of iron black or carbon black as coloring agent, calgon or STPP as dispersant, water reducing agent and potassium aluminum sulfate as swelling agent. The color additive can change the color of cement concrete and improve the performanceof cement concrete. Specially, when the cement concrete with the color additive is used in the extension joint of asphalt bridge surface of expressway, the less color difference can raise the safetyof running vehicles.

Description

Technical field: [0001] The present invention relates to cement concrete. Background technique: [0002] With the ever-increasing traffic volume, large-scale vehicles and the increasing proportion of heavy-loaded and overloaded vehicles, the traffic has higher and higher requirements for the performance of the road surface, especially for road traffic safety, comfort and environmental protection. Higher expectations . Therefore, the pavement of the road must have excellent skid resistance, better durability, low noise, and no water mist and no glare in a wet state. Among many structural types of pavement, asphalt concrete pavement is gradually accepted due to its excellent road performance, and has become a new structural form in high-grade highway engineering. However, its poor durability is still a technical problem, especially in the use of bridge expansion joints. Concrete used in bridge expansion joints must meet the following conditions in terms of durability: 1. Hi...

AI Technical Summary

Problems solved by technology

Cause visual error to the driver of the vehicle, which is very likely to cause traffic safety accidents