Movable concrete slump testing device

Abstract

The invention discloses a movable concrete slump testing device. The movable concrete slump testing device comprises a testing tube, a cart, a tamping mechanism, a measuring mechanism and a clearing mechanism, wherein a panel adjustable in height and angle is arranged on the table surface of the cart, has a three-dimensional adjusting capability, and is convenient to level; on the table surface, a first portal frame and a second portal frame are arranged on linear sliding rails; the tamping mechanism is arranged on the first portal frame; the measuring mechanism is arranged on the second portal frame; the clearing mechanism is arranged on the panel, and is matched with a discharge opening in the table surface for use; and a concrete recycling barrel is fixed below the discharge opening. The concrete slump testing cart is applicable for on-site concrete slump test, can adjust the levelness of a test platform according to site adjustment to ensure accuracy of a measurement result as well as a tamping force and a demoulding force, has a more standardized process and provides a support for accurate determination of the concrete slump.

Description

technical field [0001] The invention relates to the technical field of concrete slump test tools, in particular to a portable concrete slump test device that can realize standardized measurement. Background technique [0002] Concrete slump mainly reflects the plasticizing performance and pumpability of concrete. The main factors affecting concrete slump include raw materials, mixing time, transportation machinery, pouring speed, pouring time, etc. In addition, the amount of additives and easily overlooked cement Temperature also affects metrics. [0003] Concrete slump refers to the workability of concrete, specifically to ensure the normal progress of construction, including water retention, fluidity and cohesion of concrete. [0004] Existing conventional test method for slump: Use a trumpet-shaped slump bucket with an upper mouth of 100mm, a lower mouth of 200mm, and a height of 300mm, pour concrete into it and compact it, then pull out the bucket, and the concrete will...

AI Technical Summary

Problems solved by technology

[0007] The operation is not standardized enough and is completely controlled by personnel. For example, the density of tamping varies according to the strength of the operator. During the process of unloading the bucket, the concrete will stick to the wall of the bucket, forming a negative pressure adsorption force, which makes the test The sample is elongated in the height direction, causing secondary damage to the sample and affecting the test effect

[0008] Whether the test platform is level has an important impact on the test results. The existing test process is basically tested on the ground, and the level of the platform cannot be guaranteed.

[0009] Combining the above factors, the existing testing tools need to be improved

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