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Photoelectric concrete slump tester

A technology of slump and concrete, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve problems such as inaccurate slump, actual height error, and inaccuracy, so as to improve the test success rate, ensure accuracy, and avoid The effect of misalignment

Active Publication Date: 2014-09-24
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This measurement method is prone to large errors in measuring the actual height after the collapse due to inaccurate selection of the highest point of the concrete after the collapse and low line of sight.
Therefore, the calculated slump is inaccurate or even inaccurate

Method used

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  • Photoelectric concrete slump tester
  • Photoelectric concrete slump tester

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] like figure 2 As shown, the photoelectric concrete slump tester mainly includes a slump cylinder 1, a bottom plate 2, a lifting sleeve 3, a base sleeve 4, a pole 5, and a lifting mechanism.

[0023] The inner diameter of the lifting sleeve 3 is larger than the outer diameter of the slump cylinder 1 . An infrared emitter 31 and an infrared receiver 32 are arranged on the inner surface of the lifting sleeve 3, and the infrared emitter 31 and the infrared receiver 32 are arranged at the same horizontal position. The outer surface of the lifting sleeve 3 is provided with an infrared receiving prompter 33 that sends out prompt information when the infrared receiver receives infrared rays, and the infrared receiving prompter 33 is connected with the infrared receiver 32 . A section of external thread 34 is provided on the outer surface of the lifting sleeve 3 .

[0024] The lifting sleeve 3 is mated with the internal thread 41 of a base sleeve 4 through the external thread...

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Abstract

The invention relates to a photoelectric concrete slump tester. The photoelectric concrete slump tester comprises a slump cone and a soleplate, and is characterized by also comprising a lift bushing, wherein the inner diameter of the lift bushing is greater than the outer diameter of the slump cone, the inner surface of the lift bushing is provided with an infrared transmitter and an infrared receiver, the infrared transmitter and the infrared receiver stay on the same horizontal position, the outer surface of the lift bushing is provided with an infrared receiving prompting device, and the infrared receiving prompting device is connected with the infrared receiver; the outer surface of the lift bushing is provided with a section of outer thread which is connected with the inner thread of a base bushing in a matching manner; the base bushing is fixedly installed on the soleplate; the photoelectric concrete slump tester also comprises a vertical support rod, the support rod is arranged outside the base bushing, and the support rod is provided with scales for indicating the height vertically; the scales are provided with an infrared initial height mark corresponding to the initial position of the infrared transmitter and the initial position of the infrared receiver. By adopting the tester, the highest point of the slumped concrete can be accurately selected, and the detection accuracy can be improved.

Description

technical field [0001] The invention relates to a detection and measurement tool for detecting the performance of concrete, in particular to a concrete slump measurement device. Background technique [0002] At the project construction site, it is necessary to measure the slump of the commercial concrete or artificially mixed concrete purchased by the construction company to determine whether the commercial concrete or artificially mixed concrete is qualified. [0003] The existing measurement method is: use the slump cylinder 1 to fill the concrete, then lift the slump cylinder 1 and measure after the concrete slumps completely, such as figure 1 shown. [0004] This kind of measurement method is prone to large errors in measuring the actual height after the collapse due to inaccurate selection of the highest point of the concrete after the collapse and too low line of sight during the measurement. Thus the calculated slump is inaccurate or even inaccurate. Contents of t...

Claims

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Application Information

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IPC IPC(8): G01N11/00
Inventor 刘忠声王永顺王钦李本浩王本明
Owner STATE GRID CORP OF CHINA
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