Internal moving type high-strength pervious concrete

Abstract

The invention discloses internal-moving type high-strength pervious concrete, belongs to the technical field of building materials, and aims at remarkably improving the water permeability and strength of the pervious concrete by improving the raw materials of the pervious concrete and introducing reinforcing fibers, a water seepage filler, porous fine aggregate and hydrophilic white carbon black. Meanwhile, the internal moving microspheres are innovatively introduced and pre-buried into the pervious concrete; on the one hand, the internal moving microspheres can serve as part of coarse aggregate, the porosity of the pervious concrete can be improved, and the strength of the pervious concrete can be improved in an auxiliary mode; on the other hand, dynamic change can be achieved by controlling the water permeation speed; by means of migration of the vibration guiding balls in the inner moving microspheres, static permeation in existing pervious concrete is converted into a dynamic form of internal vibration, overall acceleration is conducted on water permeation in the pervious concrete, the drainage efficiency can be greatly improved, and the good service life is kept.

Description

technical field [0001] The invention relates to the technical field of building materials, more specifically, to an internal-moving high-strength permeable concrete. Background technique [0002] In the process of urbanization, the surface of modern cities is gradually hardened and covered by water-blocking materials such as buildings and concrete, forming an ecological "artificial desert". At the same time of great convenience, these impermeable pavements also have a great negative impact on the ecological environment of the city. First of all, the traditional pavement emphasizes the durability and usability of the ground, but the impermeability of this pavement completely blocks the precious natural precipitation from the underlying soil and groundwater, and most of the precipitation passes through the urban drainage system The discharge of the pipe network into surface water sources such as rivers, lakes and seas, coupled with the excessive extraction of urban groundwate...

AI Technical Summary

Problems solved by technology

It is a kind of porous lightweight concrete made by mixing aggregate, cement and water. It does not contain fine aggregate, and the surface of coarse aggregate is covered with a thin layer of cement slurry to bond with each other to form a honeycomb shape with uniform distribution of pores. structure, so it has the characteristics of air permeability, water permeability and light weight. However, due to the porous structure of the existing permeable concrete bricks, its own strength is low, and the drainage effect is too dependent on the pore-forming quality of the concrete, resulting in most of the permeable concrete. Poor water permeability

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