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Concrete slump tester

A concrete and slump technology, applied in the direction of material inspection products, etc., can solve the problems of difficult to control the degree of concrete filling slump, uneven ground, and irregular distance measurement.

Inactive Publication Date: 2015-03-25
UNIV OF JINAN
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to solve the problems in the existing slump measurement, the ground is uneven, the distance measurement is not standardized, and the degree of concrete filling the slump cylinder is difficult to control, the present invention provides a specialized slump test instrument, which can pass through the structure of the instrument Design, greatly avoiding the interference of uncertain factors in the test process, and has strong controllability

Method used

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Experimental program
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Embodiment Construction

[0010] In Fig. 1, the four corners of the base 4 are respectively connected with a square rod 5, two round rods 10 and a scale 2.

[0011] In Fig. 2, two rotating shafts 6 with hemispheres are installed inside the base, and a gear 7 is installed on the rotating shaft, and the gear and the gear transmission 12 are connected to the motor 13. The motor is controlled via switch 9.

[0012] In Fig. 3, the size of the slump cylinder 11 is that the upper and lower diameters are 100mm and 200mm, and the height is 300mm. The slump cylinder 11 is welded to the slump cylinder connecting rod 8 . The circular scale 2 takes the 0 scale at the height of 300mm, and marks the millimeter scale downwards successively. The measuring rod 3 is sleeved on the scale through a circular tube. The notches at the four corners of the test platform 1 are in the same position and size as the square rod 5, the round rod 10, and the scale 2 in turn.

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Abstract

The invention discloses a concrete slump tester and relates to the technical field of engineering. The invention mainly aims at solving the problem of inaccuracy existing in an existing concrete slump test. A slump cylinder is arranged at a central position of a test platform and is connected with a square rod by virtue of a connecting rod; the slump cylinder can slide up and down and cannot swing from the left to the right, and a stable position is ensured. A rotating shaft with a hemisphere is arranged below the test platform and is driven to rotate by virtue of a motor. When the hemisphere rotates the lower part, the test platform drops on a base, and when the hemisphere rotates to the upper part, the platform can be lifted up so as to generate vibration, so that the slump cylinder is fully filled with concrete. The circular scale is marked as 0 at the height of the slump cylinder, millimeter marks are sequentially made downwards, a measuring rod can slide up and down, the slump cylinder slides upwards to be taken out, and after the concrete is stabilized, data can be directly read from the scale.

Description

technical field [0001] The invention relates to a concrete slump testing instrument, which can more conveniently measure the concrete slump and makes up for the inaccurate defect of the existing concrete slump measuring method. Background technique [0002] Slump mainly refers to the plasticizing performance and pumpability of concrete, which is a quantitative index to measure its degree (plasticization and pumpability), and is used to judge whether the construction can proceed normally. At present, the traditional concrete slump measurement mainly adopts the method of placing the slump cylinder on the ground and measuring it with a ruler. This method is simple, but the operation is extremely irregular. The degree of filling is uncertain. This determines that the measured data cannot fully reflect the properties of concrete. The development of high-performance concrete has increasingly strict requirements on the accuracy of experimental data, and the quality of concrete ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/38
Inventor 王响刘永杰孙杰璟
Owner UNIV OF JINAN
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