Sulfur-oxygen-magnesium cement stable gravel road surface base material

Abstract

The invention discloses a sulfur-oxygen-magnesium cement stable gravel road surface base material. The material comprises the following components: active magnesium oxide powder, a magnesium sulfate solution, an additive, an aggregate and water, wherein the active magnesium oxide powder is one or a compound of more selected from a group consisting of magnesite light burning powder, dolomite caustic powder, a calcined product of basic magnesium carbonate, and various calcined products of magnesium hydroxide, wherein the content of the active magnesium oxide is greater than or equal to 60%, theadditive is one or more selected from phosphoric acid, phosphates and citric acid, and the aggregate comprises one or more selected from various gravel, pebbles, artificial stones, river sand, mountain sand, artificial sand and the like. The magnesium phosphate cement stable gravel road surface base material is used for construction according to a semi-rigid base construction method, and is used for paving roads with high salt-halogen corrosion in coastal areas and western salt lake areas of China. The construction is convenient, the operation is simple, and the material is easy to promote andapply.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a magnesium oxysulfate cement stabilized crushed stone pavement base material. technical background [0002] Ordinary concrete is a brittle material with heterogeneity, multiple defects, low tensile strength, and hard plastic deformation. application. my country's transportation industry is increasingly developed, but my country's transportation tasks are increasingly arduous. At present, the pavement structure of high-grade highways in my country is mostly semi-rigid ordinary concrete base pavement, which is prone to premature plate breakage and surface structure damage during use; at the same time, the corrosion resistance is poor, and it is not suitable for high-salt brine in western my country corrosion area. Therefore, finding pavement base materials with stable structure and resistance to brine corrosion has important practical significance and social benefit...

AI Technical Summary

Problems solved by technology

At present, the pavement structure of high-grade highways in my country is mostly semi-rigid ordinary concrete base pavement, which is prone to premature plate breakage and surface structure damage during use; at the same time, the corrosion resistance is poor, and it is not suitable for high-salt brine in western my country corrosion area