Grouting material for road strengthening and preparation method thereof

Abstract

The invention discloses a grouting material for road strengthening. The grouting material is prepared from, by mass, 20-50 parts of waste concrete, 5-20 parts of cement, 20-40 parts of steel slag, 10-40 parts of iron tailings slag, 10-30 parts of fly ash, 5-20 parts of waste gypsum, 1-3 parts of polypropylene fiber, 0.2-0.8 part of a water reducing agent, 0.5-2 parts of an expanding agent and 0.5-1 part of an early strength agent. According to the grouting material for road strengthening, only a small amount of cement is used, various waste materials are used for replacing a large amount of cement, the cost of the grouting material is lowered, the constituent composition is simple, and the grouting material is easy to prepare. Due to the fact that various waste materials are added in the cement, the workability of the grouting material can be improved, and the grouting material has the properties such as high flowability, high strength and crack resistance; the setting time of the grouting material is prolonged, and the construction time is long; and the compressive strength is high.

Description

technical field [0001] The invention relates to the technical field of building materials and preparation methods thereof, in particular to a grouting material for road reinforcement and a preparation method thereof. Background technique [0002] At present, most of the existing grouting materials in the field of building materials and civil engineering in my country are epoxy resin grouting materials and cement-based grouting materials. Epoxy resin grouting material has high production cost, complicated construction operation, poor bonding force with steel structure and concrete, and poor durability. The main cementitious material of commercially available and engineering cement-based grouting materials is pure sulphoaluminate cement or pure ordinary Portland cement. In recent years, the cement manufacturing industry needs to use a large amount of clay, destroying precious non-renewable cultivated land resources, releasing a large amount of carbon dioxide, and producing du...

AI Technical Summary

Problems solved by technology

[0003] Solving the problems of high production cost, poor fluidity and poor strength of existing grouting materials is of great significance to the field of building materials and civil engineering in my country