A test device and measurement method for horizontal flow performance of concrete
A technology of flow performance and measurement method, applied in the direction of DC flow characteristic measurement, etc., can solve the problems of single parameter, lack of close correlation, inability to comprehensively express the horizontal flow performance of concrete and the ability to cross obstacles, etc., to achieve simple operation and simple structure. , Overcome the single effect of test results
Active Publication Date: 2021-04-09
BEIJING UNIV OF TECH
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Problems solved by technology
[0003] In order to solve the problem that the existing concrete flow performance test has single parameters for measuring the concrete flow performance, the correlation between the parameters is not close, and the horizontal flow performance of concrete and the ability to cross obstacles cannot be comprehensively expressed, and a method for the horizontal flow performance of concrete is proposed. Test device and implementation method
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[0018] The embodiment of the present invention is described in conjunction with the drawings. A test device for the horizontal flow performance of concrete according to the embodiment of the present invention includes a bottom plate 1, a side baffle 2, a rivet 3, a tapered funnel 4, a funnel switch 5 and a funnel handle 6, and the rivet 3 Evenly distributed on the upper surface of the bottom plate 1, the bottom plate 1 and the side baffles 2 form a bottom groove for measuring the horizontal flow performance of the concrete. The base plate 1 of the present invention is a square of 600mm × 600mm; the side baffle 2 is a rectangle of 200mm × 600mm; the diameter of the rivets 3 is 10mm, and the height is 180mm, and the distance between adjacent rivets 3 is 100mm; 100mm; the upper opening diameter of the tapered funnel 4 is 500mm, the lower end outlet diameter is 100mm, the height of the cone is 660mm, and the height of the cylinder with a lower diameter of 100mm is 55mm.
[0019] T...
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Abstract
The invention provides a test device and a measurement method for the horizontal flow performance of concrete, which can solve the problem that the existing concrete work performance test method provides single measurement parameters, the relationship between each work performance parameter is not close, and the horizontal flow performance of concrete cannot be represented as a whole. and the ability to pass obstacles. The device of the present invention includes a square bottom groove with rivets evenly distributed inside and a conical funnel with the same volume as the bottom groove, and the conical hole is placed just above the bottom groove. The invention can measure the horizontal flow performance of concrete and the ability to pass through obstacles.
Description
technical field [0001] The invention relates to a measuring device and a measuring method, in particular to a measuring device and a measuring method for the horizontal flow performance of concrete. Background technique [0002] Measuring the horizontal flow performance of concrete is mainly measured by the slump, expansion and T500 test parameters measured by the slump test. These test parameters are less related to each other, and cannot express the horizontal flow performance of concrete and the passage of concrete obstacles from the whole. Ability. The flow performance of concrete is closely related to the flow time. At present, only the V-shaped funnel test is used to test the relationship between the working performance of concrete and the flow time. However, the V-shaped funnel is easily affected by concrete segregation. The relationship between the strength test is not close, and the relationship between the horizontal flow performance of concrete and the flow time ...
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IPC IPC(8): G01N11/06
CPCG01N11/06
Inventor 李悦郝吉王子庚李战国
Owner BEIJING UNIV OF TECH