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An experimental device suitable for testing the elastic and tough properties of cement-based materials

A technology of cement-based materials and experimental devices, which is applied in the direction of measuring devices, mechanical devices, and analytical materials, etc. It can solve the problems that it is not suitable for small-scale cement-based materials testing, experimental test data is not necessarily accurate, and takes up a lot of space. , to achieve the effects of compact structure, fast test and detection, and easy operation and use

Active Publication Date: 2022-05-17
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no special experimental testing device for testing the elasticity and toughness of cement-based materials, and the experimental testing is carried out with the help of other equipment, and the experimental testing device is relatively large; during testing, special roads need to be paved, which takes up a lot of space, and experimental testing The data is not necessarily accurate, and the detection cost is high, so it is not suitable for small amount of cement-based material test and detection

Method used

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  • An experimental device suitable for testing the elastic and tough properties of cement-based materials
  • An experimental device suitable for testing the elastic and tough properties of cement-based materials
  • An experimental device suitable for testing the elastic and tough properties of cement-based materials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Before the mechanical properties testing experiment of cement products, the cement products are made into rectangular cement plates in advance; the cement products are placed horizontally on the ground or auxiliary pedestal 23, and the supporting stand 1 is moved to the top of the cement products by the walking wheel 24, so that the supporting stand 1 is covered on the cement products, and the sliding seat 3 adjusts the position of the drive 4 on each track, so that the drive 4 is evenly arranged on the track, and then ensures that the detection seat 5 on all the drives 4 falls evenly on the cement products when pressed down; subsequently, Start the driver 4 downward push each detection seat 5 lower pressure on the cement products, while loosening the level detector 9, micro-bomb detection mechanism 11 on the locking device, so that the level detector 9, micro-bomb detection mechanism 11 in a free falling state pressed on the cement products; in the process of under-pressur...

Embodiment 2

[0031] The cement product is placed horizontally on the clamp seat 17 and the clamping arm 18 of the U-shaped clamping port fixed, push the sliding seat 3 to adjust the position of the drive 4 on each track, so that the drive 4 is evenly arranged on the track, and then ensure that the detection seat 5 on all the drives 4 falls evenly on the cement product when pressed down; subsequently, the start driver 4 pushes down each detection seat 5 pressure on the cement product, while loosening the locking device on the level detector 9, the microelastic detection mechanism 11, so that the level detector 9, Micro-bomb detection mechanism 11 is in the free falling state pressed on the cement products; in the process of down-pressing, the pressure of the drive 4 is continuously increased, and the level detector 9, the micro-bomb detection mechanism 11, the miniature ranging laser ruler 10, the laser level ruler 20 data; finally the analysis data can obtain the elastic toughness performance ...

Embodiment 3

[0033] The cement product is placed horizontally on the ground, the auxiliary bench 23 or the clamping port of the clamping device, the clamping seat 17 and the clamping arm 18 of the U-shaped clamping port fixed, push the sliding seat 3 to adjust the position of the drive 4 on each track, so that the drive 4 is evenly arranged on the track, thereby ensuring that the detection base 5 on all the drives 4 falls evenly on the cement products when pressed down; subsequently, adjust and increase the operating speed of each drive 4, Start the drive 4 quickly push down each detection base 5 impact cement products, and record the level detector 9, micro-elastic detection mechanism 11, micro ranging laser ruler 10, laser level 20 data; finally analyze the data to obtain the elastic toughness performance data of cement products.

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Abstract

The invention discloses an experimental device suitable for testing the elasticity and toughness of cement-based materials, which includes a support stand, a driver, a detection force application seat, a deformation detection mechanism, and a micro-elasticity detection mechanism. The support stand is arranged in a frame structure, A driver is set on the top of the support stand through a guide rail, a detection force application seat is provided at the lower end of the driver, a micro-elastic detection mechanism is provided on each of the detection force application seats, and a deformation detection mechanism is symmetrically provided at the middle and lower parts of the support stand. The signals of the driver, the deformation detection mechanism and the micro-elasticity detection mechanism are connected to the control device. The invention is compact in structure, small in volume, easy to operate and use, strong in reliability, can flexibly adjust the magnitude of the applied force, and can meet the detection requirements of cement-based materials of different sizes; through multiple detections by the deformation detection mechanism and the micro-elasticity detection mechanism, the The uniformity of the performance parameters of the standard sample for impact toughness testing of cement-based materials and high testing accuracy.

Description

Technical field [0001] The present invention belongs to the technical field of cementitious material testing equipment, in particular to an experimental apparatus suitable for the detection of elastic toughness of cementitious materials. Background [0002] Cement-based materials have been used in roads, bridges, tunnels and construction projects for nearly 100 years, effectively improving urban traffic conditions and improving the service life of pavements. With the urban road due to the large amount of traffic, frequent use, complex environment and other reasons, the existing cement-based materials have been unable to meet the needs of road construction, in order to further improve the urban road driving environment, extend its service life and develop its environmental purification function, it is necessary to further develop new cement-based materials. [0003] During the development process, the elastic and toughness properties of cementitious materials need to be tested ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/303G01N3/08G01N19/00
CPCG01N3/303G01N3/08G01N19/00Y02A30/30
Inventor 程智清龙广成刘宝举曾晓辉谢友均
Owner CENT SOUTH UNIV