Photoelectric Concrete Slump Tester

A slump, concrete technology, applied in instruments, measuring devices, scientific instruments, etc., can solve the problems of inaccuracy, actual height error, inaccurate slump, etc., to avoid misalignment, ensure accuracy, and improve test success rate effect
CN104062205BActive Publication Date: 2016-06-01STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2016-06-01

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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.
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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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