A kind of porous asphalt concrete water permeability testing device and testing method

Abstract

The invention discloses a porous bituminous concrete permeability performance testing device and a testing method thereof. The device is provided with a device bracket. The device bracket is, successively from top to bottom, provided with a low speed motor, a porous stirring blade, a water storage tank, a first water guiding pipe, a first valve, a water storage container, an overflowing pipe, a second water guiding pipe, a second valve, a turbine flowmeter, a rotation nut, a permeable fixing cover, a test piece placing container, a high-precision liquid level meter, a permeable base, a water exhausting pipe and a water accumulating container. Silt mixed solution is pre-placed in the water storage tank, and uniformly mixed by the low speed motor and the porous stirring blade, and controlled to be flowed into the water storage container by using the first valve. The turbine flowmeter is used for monitoring the permeable flow of the porous concrete, and the liquid level meter is used for calculating the exudation flow, so the permeability and performance deterioration of the porous concrete are monitored. The porous bituminous concrete permeability performance testing device is used for testing the permeability performance of the porous material, and effectively evaluating the permeability performance of the bituminous concrete.

Description

[0001] Field [0002] The invention relates to a porous asphalt concrete water permeability test device and a test method thereof, belonging to the technical field of detection and evaluation of asphalt concrete road performance. Background technique [0003] The concept of "sponge city" was first proposed in the "2012 Low Carbon City and Regional Development Science and Technology Forum" in April 2012, and has received great attention from domestic scientific research institutions and production enterprises. The goal of sponge city construction is to maximize the accumulation, infiltration and purification of rainwater in urban areas, and the road structure, which is an important infrastructure for urban transportation, has a huge area and wide distribution. It is one of the main facilities to ensure the drainage of sponge cities , which effectively promotes the collection and discharge of rainwater. The structure of permeable asphalt pavement has been widely used in the wor...

AI Technical Summary

Problems solved by technology

In the existing specifications, the water seepage meter is mainly used to evaluate the water permeability of porous asphalt concrete, but this equipment is a variable head infiltration device, and its data needs to be read manually. The most important thing is that it cannot consider the influence of sediment blockage on the drainage performance attenuation

Aiming at the deficiency of existing asphalt concrete permeability testing devices, and the lack of testing instruments and technologies for evaluating anti-clogging performance, the sponge city pavement water permeability and anti-clogging performance tester and its testing method were invented, through the mixing simulation of fine sediment and water The attenuation of the water permeability of the pavement under the actual environmental conditions has been realized, and the real-time record of the seepage data has been realized, which can more effectively evaluate the water permeability of porous asphalt concrete and the development of pore clogging

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