Universal device for testing water-air permeation coefficients of concrete
A technology of permeability coefficient and general device is applied to the general device of gas permeability coefficient to measure the field of concrete water to achieve the effect of ensuring high consistency, reducing errors and controlling variables well.
Pending Publication Date: 2018-08-03
ZHEJIANG UNIV OF TECH
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[0006] In order to overcome the limitations of existing concrete permeability testing devices, the present invention provides a universal device for measuring concrete water and air permeability coefficients with strong practicability, accuracy and effectiveness, high degree of automation, and convenient operation
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[0032] The present invention will be further described below in conjunction with the accompanying drawings.
[0033] refer to Figure 1 to Figure 10 , a general-purpose device for measuring concrete water and air permeability coefficients, said device comprising a test barrel and a water seepage / air seepage measuring device, said test barrel comprising a barrel body 14, an upper cover plate 5, a bottom plate 15 and a test piece installation device , the lower end of the barrel body 14 is fixed on the bottom plate 15, and the upper cover plate 5 is detachably mounted on the barrel body 14 through a screw 17 and a nut; hole 2, and the deflated drain hole 2 is provided with a deflated drain valve 20; the test piece installation device includes a lower pressing plate 7 and at least two thin screw rods 3 for fixing the test piece, and the center of the lower pressing plate 7 is provided with a circle shaped water seepage / air seepage hole 19, the upper end of the test piece fixing ...
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The invention discloses a universal device for testing water-air permeation coefficients of concrete. The device comprises a testing bucket and a water permeation amount / air permeation amount testingdevice, wherein the testing bucket comprises a bucket body, an upper cover plate, a bottom plate and a test part mounting device; an air release drainage hole is formed in the center of the upper cover plate; an air release drainage valve is arranged on the air release drainage hole; the test part mounting device comprises a lower pressing plate and test part fixing fine screw rods; circular waterpermeation / air permeation holes are formed in the center of the lower pressing plate; test parts are mounted on the circular water permeation / air permeation holes of the lower pressing part and are positioned between the lower pressing plate and the upper cover plate; a water outlet / air outlet is formed in a part corresponding to each test part on the test part mounting device, of the upper coverplate; water outlet / air outlet valves are arranged on the water outlets / air outlets. The invention provides the universal device which is good in practicability, accurate and effective, high in automatic degree, convenient to operate and capable of testing water-air permeation coefficients of concrete.
Description
technical field [0001] The invention relates to a universal device for measuring the water and air permeability coefficient of concrete. Background technique [0002] At present, my country's economy is in a period of rapid development. Concrete is an important material in the construction industry and is widely used. However, due to my country's coastal and inland regions, and climate differences between the north and the south, the durability of concrete is facing a severe test. The permeability of concrete is an important index to evaluate the durability of concrete. Therefore, it is of great strategic significance to study the permeability of cement-based materials such as concrete to provide strong support for improving the durability of concrete. [0003] my country's "Concrete Quality Control Standard" (GB50164-2011) and Chinese Patent Announcement No. CN101949816A (a test method for determining the permeability coefficient of plastic concrete) are both semi-quantit...
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Login to View More IPC IPC(8): G01N15/08G01N7/10
CPCG01N7/10G01N15/08
Inventor 王建东方赵峰边帆张俊芝付传清徐梦婷徐惠芳徐博煜
Owner ZHEJIANG UNIV OF TECH