Method and device for rapidly determining effective porosity of ecological porous concrete

A technology of porous concrete and effective pores, which is used in measurement devices, analysis of suspensions and porous materials, permeability/surface area analysis, etc. effect of error

Inactive Publication Date: 2017-02-22
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Existing methods and devices for measuring the effective porosity of ecological porous concrete often have c

Method used

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  • Method and device for rapidly determining effective porosity of ecological porous concrete
  • Method and device for rapidly determining effective porosity of ecological porous concrete
  • Method and device for rapidly determining effective porosity of ecological porous concrete

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Embodiment Construction

[0025] The ecological porous concrete effective porosity fast measuring device of the present invention comprises the water storage container (for example glass tank) with drainage pipe, is provided with the water injection container (for example jar) of water injection conduit, pushing device and water measuring device (for example measuring cylinder), the concrete specimen is placed in the water storage container during the determination experiment, and the pushing device is used to squeeze the water in the water injection container from the water injection pipe into the concrete specimen, and the water measuring device is used to collect the water overflowing from the drain pipe during the determination experiment. of water.

[0026] In a specific embodiment, the pushing device includes a push rod and a disc fixedly connected to one end thereof and perpendicular to it.

[0027] The detailed steps of the rapid determination method for the effective porosity of ecological por...

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Abstract

The invention relates to a method and device for rapidly determining the effective porosity of ecological porous concrete. The device comprises a water storage container provided with a water draining pipe, a water injection container provided with a water injection catheter, an extruding and pushing device and a water measuring device. During a determination experiment, a concrete test piece is placed in the water storage container, the extruding and pushing device is used for extruding water in the water injection container from the water injection catheter and injecting the water into the concrete test piece, and the water measuring device is used for collecting water overflowing from the water draining pipe during the determination experiment. Volume of the water is utilized for equivalently replacing the effective pore volume of porous concrete, namely that the water is slowly extruded to the interior of a test mould by virtue of the extruding and pushing device; and when the water level in the test mould is flushed with the top of the test mould, the volume of the water inside the test mould is namely the effective pore volume of the concrete. The experimental device provided by the invention can dynamically control the volume of the water injected into the test mould, can rapidly and accurately determine the effective pore volume, and is significant to monitoring of the plant growth space of the concrete.

Description

technical field [0001] The invention relates to a method and device for quickly measuring the effective porosity of ecological porous concrete, belonging to the technical field of building material testing. Background technique [0002] Environmental problems such as the urban heat island effect caused by the large-scale application of ordinary concrete and global warming caused by the increase in carbon dioxide emissions have seriously threatened the living environment of human beings. Researchers at home and abroad have made ordinary concrete ecological, that is, by adjusting the components and proportions of concrete, and controlling its strength, porosity, pore size and other control indicators, the required ecological porous concrete can be obtained; the ecological porous concrete that meets the requirements of plant growth Concrete is used in green belts, parking lots, roofs, etc., and plays an important role in improving the urban environment and air. [0003] The gr...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/088
Inventor 尹健彭华张贵桑正辉胡雄伟高婷李晟
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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