A kind of iron tailing sand cement concrete applied to road surface

Abstract

The invention provides iron tailings sand cement concrete applied to pavements, and belongs to the technical field of fixed constructions and roads in the part E of international patent classification (IPC). The iron tailings sand cement concrete is characterized in that the material property of iron tailings sand is analyzed; the mixture ratio of the iron tailings sand cement concrete meeting the strength requirements of cement concrete pavements is determined; the pavement performance of the iron tailings sand cement concrete meeting the strength requirements of road face plates is studied, and the structural design parameter choice of the iron tailings sand cement concrete is determined; the structural combination meeting the strength and rigidity of the iron tailings sand cement concrete pavements is determined through calculation. The iron tailings sand cement concrete applied to the pavements has the beneficial effects that the iron tailings sand can be applied to the asphalt cement concrete by the design, the comprehensive recycling and using of iron tailings are realized, and the comprehensive recycling and using of tailing resources are carried out; the pressure of shortage of natural sand resources in concrete industries is effectively relieved.

Description

technical field [0001] The invention belongs to the technical field of fixed buildings and roads in Part E of the International Patent Classification IPC, and relates to the material problem of cement concrete pavement, specifically, applying iron tailing sand to the cement concrete road surface to prepare a new type of iron tailing sand cement concrete. Background technique [0002] Mining resources are important natural resources for the survival of human society. 95% of my country's energy, 85% of industrial raw materials and 70% of agricultural production materials are made of mineral products. The loss of mine tailings and the nearby discharge of tailings lead to the filling of depressions, desertification, erosion of cultivated land, and obliteration of fertile land; tailings flow into rivers, silt up river courses, and even cause geological disasters such as floods and mudslides. Since sand mining and stone extraction in Hanoi are currently prohibited in some places, ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an iron tailing sand cement concrete pavement material applied to the road surface, so that the cement concrete pavement surface layer can utilize solid waste iron tailings on a large scale, and its flexural and other mechanical properties meet the requirements of various road conditions. Meet the requirements of technical indicators, realize the recycling and reuse of iron ore tailings, and solve the problems of environmental pollution caused by iron ore tailings and shortage of sand and gravel materials

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