Instrument and method for testing permeability coefficient of water-permeable cement concrete

A technology of cement concrete and water permeability, which is applied in measurement devices, scientific instruments, permeability/surface area analysis, etc., can solve the problem that the test instrument cannot be used in any occasion, and achieves simple structure, convenient measurement operation, and high measurement accuracy. Effect

Inactive Publication Date: 2011-09-14
FUJIAN UNIV OF TECH
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Problems solved by technology

The shortcoming of this invention is: its test instrument can only be t

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  • Instrument and method for testing permeability coefficient of water-permeable cement concrete
  • Instrument and method for testing permeability coefficient of water-permeable cement concrete
  • Instrument and method for testing permeability coefficient of water-permeable cement concrete

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Embodiment Construction

[0019] see figure 1 Shown, be the first embodiment of a kind of permeable cement concrete water permeability coefficient tester of the present invention, comprise the water reservoir (2,3) of upper and lower joints connected through groove 1, described upper joint water reservoir The head of 2 is provided with a first overflow port 4; its overflow port 4 is in order to prevent the measurement accuracy of the measuring instrument from being too much to prevent the injection of water; the upper end of the lower section water storage 3 is provided with a plurality of The bolt fulcrum 5 of the water-permeable cement concrete specimen to be tested (note that only two fulcrum schematic diagrams are drawn in the figure here, and others are not drawn), the second overflow port 6 is provided below the fulcrum 5, and the second The overflow port 6 is connected to a drain pipe 8 through a hose 7; the connection between the second overflow port 6 and a drain pipe 8 is not restricted, and ...

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Abstract

The invention provides an instrument for testing a permeability coefficient of water-permeable cement concrete. The instrument comprises an upper sectional water container and a lower sectional water container which are connected with each other through a rabbet; a first overflow opening is formed on the head of the upper sectional water container; a plurality of pivots for supporting a water permeability cement concrete test piece to be tested are arranged at the upper end of the lower sectional water container; a second overflow opening is formed below the pivots; the second overflow opening is connected with a water-drainage-height-adjustable water drainage pipe; and a measuring cylinder is arranged below the water drainage pipe. The invention also provides a method for testing the permeability coefficient of the water-permeable cement concrete. The method is easy in operation, and the instrument has a simple structure and is high in measurement precision; and the water permeability cement concrete test piece can be tested on any occasion.

Description

【Technical field】 [0001] The invention relates to a water permeability coefficient measuring instrument, in particular to a water permeability cement concrete water permeability measuring instrument and a testing method. 【Background technique】 [0002] The surface of modern cities is mostly covered by reinforced concrete buildings and impermeable pavement. Compared with natural soil, ordinary concrete pavement lacks breathability, poor ability to absorb heat and infiltrate rainwater, which also brings a A series of environmental problems, concrete has always been considered the culprit of destroying nature, but as long as continuous pores are formed, it can create a connection point with the natural environment and greatly change the image of the past. Because of its honeycomb porous structure, permeable concrete is a creative material for restoring the earth's environment that is constantly being destroyed. It has characteristics different from ordinary concrete: small bulk...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 周继忠林奇聂小龙钟琳郑莲琼蔡雪峰
Owner FUJIAN UNIV OF TECH
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