Permeable concrete blockage and repairing mechanism simulating device and method

Abstract

The invention discloses a permeable concrete blockage and repairing mechanism simulating device and method. The simulating device comprises a transparent cylinder, a water storage device, a cleaning device and a water drainage device. A permeable concrete sample capable of being taken out is arranged at the bottom inside the transparent cylinder; the top of the transparent cylinder can be detachably and hermetically connected with the water storage device or the cleaning device separately, the bottom of the transparent cylinder can be detachably and hermetically connected with the water drainage device, the water storage device is used for draining experiment sewage to the permeable concrete sample to simulate a raining situation, and the cleaning device is used for draining clear water tothe permeable concrete sample under high pressure to simulate cleaning work of a watering cart. By means of the permeable concrete blockage and repairing mechanism simulating device and method, the change trends of the silt content, the overall porosity, the permeability coefficient, the blockage simulation time and other parameters of the permeable concrete sample in the experiment process can be tested, and effective data references are provided for subsequent design of a permeable concrete pavement and later cleaning and maintenance.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a permeable concrete blockage and repair mechanism simulation device and a simulation method thereof. Background technique [0002] Permeable concrete refers to the concrete whose internal porosity is greater than 10%, generally 15%-30%, most of the pores are greater than 1mm, and has certain water and air permeability. It is a porous material made by mixing aggregate, cement and water. It does not contain or contain a small amount of fine aggregate, and is bonded by a thin layer of cement slurry on the surface of coarse aggregate to form a honeycomb with uniform distribution of holes. Shaped structure, it has the characteristics of air permeability, water permeability and light weight. [0003] Nowadays, the impermeable area of ​​the city is getting larger and larger, and the rainfall often flows into the rainwater pipe network and flows out of the city, which brings ...

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Problems solved by technology

[0004] However, when organic matter and fine-grained impurities block the voids of pervious concrete, water permeability becomes an urgent problem to be solved for pervious concrete.

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