A non-metallic mineral grouting material for road subgrade reinforcement

Abstract

The invention discloses a non-metallic mineral grout for road subgrade reinforcement, which comprises 50-60 parts by weight of calcined kaolin, 20-30 parts by weight of blast furnace slag powder, 01-20 parts by weight of double fly powder and additives; The additives include water-fixing coagulant, softener and leveling agent. The invention relates to a non-metallic mineral grout for road subgrade reinforcement, which includes calcined kaolin, blast furnace slag powder and double fly powder, water-fixing coagulant, softener and leveling agent. It adopts hydraulic solidification minerals, double fly powder and industrial waste slag materials and supplemented with additives. It only needs to add water and stir when using. It has the characteristics of high early strength, good injection fluidity, and high density after forming solidified slurry, which can effectively improve The mechanical compression strength of the road foundation, and the remarkable characteristics of good water damage resistance and high durability.

Description

technical field [0001] The invention relates to the technical field of grouting material for road subgrade reinforcement, in particular to a non-metallic mineral grouting material for road subgrade reinforcement. Background technique [0002] At present, the grouting materials used for roadbed reinforcement in the market are mostly cement-based, supplemented by some additives and admixtures. Because the roadbed is a concealed project under the ground surface, its underground foundation materials and geographical structure are complex. However, the above-mentioned traditional grouting materials have poor adaptability, and often work well in a certain area or a certain section of road, but have no effect when used in another area or section of road, resulting in serious rework and waste. [0003] There are many reasons why the subgrade cannot be reinforced, and the most important one is that the traditional grouting material cannot immediately form a wrapping material to fix t...

AI Technical Summary

Problems solved by technology

[0002] At present, the grouting materials used for roadbed reinforcement in the market are mostly cement-based, supplemented by some additives and admixtures. Because the roadbed is a concealed project under the ground surface, its underground foundation materials and geographical structure are complex. However, the above-mentioned traditional grouting materials have poor adaptability and are often used in a certain area or a certain road section with good results, but in another area or road section, they have no effect, resulting in serious rework and waste.

[0003] There are many reasons why the subgrade cannot be reinforced, and the most important one is that the traditional grouting material cannot immediately form a wrapping material to fix the loose material of the subgrade in a complex underground environment (especially a water environment, sometimes a dynamic water environment), resulting in Strength, but often with groundwater loss, dispersion, or cannot be consolidated with underground soil materials to form reinforcement

As a result, the roadbed reinforcement is useless and does not have any effect

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