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Mortar constructability testing device

A test device and constructional technology, which is applied in the direction of measuring devices, flow characteristics, instruments, etc., can solve the problems of incomparability of measurement results, inability of spring tension gauges to perform accurate readings, and errors in measurement results, etc., to avoid inter-individual differences The effect of reducing the difference of horizontal friction and improving the test accuracy

Pending Publication Date: 2020-01-31
BBMG MORTAR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this scheme has the following problems: First, the friction and other resistance interferences of different test devices (especially sliding components) are different, resulting in incomparable measurement results between different devices; second, the sliding plate (equivalent to a trowel) When the mortar surface is moving, on the one hand, due to the uneven texture of the mortar, its spring tension is always in a dynamic state of change; It shows a gradually increasing trend, which leads to the inability to make accurate readings with the spring tension meter, and the error of the measurement results is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment presents a functional structure of a mortar constructability testing device, including a base material, a trowel 8, a limit movement device, a transmission device, and a traction measurement device arranged on a workbench 1 .

[0028] Wherein, the base material is used to set the mortar to be tested; the limit motion device includes a moving part and a fixed part, the fixed part is installed and fixed on the workbench 1, and the moving part is movably connected to the on the fixed part; the trowel is installed on the moving part, and the lower edge of the trowel faces the base material; the traction measurement device is equipped with traction control for the running speed of the traction end and The function of collecting data on the traction force-displacement relationship; the traction end of the traction measuring device is connected with the moving part or the trowel through the transmission device.

[0029] When the trailing end of the traction mea...

Embodiment 2

[0032] This embodiment provides a specific structure of the mortar construction test device described in Embodiment 1. Such as Figure 1-3 As shown, it includes a workbench 1, a slideway 2, a slider 3, a connector 4, a nut 5, a movable shaft 6, a screw 7, a trowel 8, a wire rope 9, a first sliding assembly 10, a second sliding assembly 11, Electronic universal testing machine 12 and connector two 13.

[0033] Specifically, the fixed part of the limiting motion device is the slideway 2 , and the moving part is the slider 3 . There are two slideways 2, which are arranged symmetrically on both sides of the table top of the workbench 1; Slide along slide 2. The adjustment device includes two connectors-4 and a movable shaft 6; the two connectors-4 are respectively installed on the upper parts of the two sliders 3, and the upper parts of the two connectors-4 have grooved holes; The movable shaft 6 passes through the grooved holes of the two connectors-4 and is fixed with the co...

Embodiment 3

[0042] This example provides a test method for mortar construction using the device described in Example 1 or 2.

[0043] Such as Figure 4 Shown, a kind of mortar constructability testing method comprises the following steps: (1) setting the mortar to be tested on the substrate as a test piece; (2) setting the trowel on the test piece with a preset height and inclination angle (3) pull the trowel to move on the test piece, record the tension-displacement curve of the trowel; (4) calculate the integral area of ​​the tension-displacement curve, which is the construction index of the mortar to be measured . As the trowel moves, more and more mortar is accumulated in front of it, which causes its pulling force to gradually increase. It is difficult to fully reflect the mortar construction performance of the entire test process only through the tension at one point. Therefore, this method adopts the technical scheme of calculating the integral area of ​​the tension-displacement ...

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Abstract

The invention provides a mortar constructability testing device. The testing device is characterized by comprising a base material, a trowel, a limiting motion device, a transmission device and a traction measuring device. When the traction end of the traction measuring device is retracted, the moving part or the trowel is pulled by the transmission device to move in the direction limited by the fixed part, and therefore the lower edge of the trowel moves in parallel from the position above the base material. The digital traction measuring device is adopted, the moving speed of the trowel is accurately controlled, the tension-displacement numerical value in the trowel moving process is measured and recorded, and the construction performance data of mortar can be presented integrally, objectively and comprehensively. On the basis of the tension-displacement curve, a result obtained after integral or average value operation is carried out by adopting integral test data is used as an evaluation index of the mortar construction performance, so that the integral performance of the mortar construction performance can be effectively reflected.

Description

technical field [0001] The invention belongs to the technical field of building mortar tests, and in particular relates to a mortar constructability test device. Background technique [0002] The amount of building mortar is large and wide, and its constructability has a significant impact on construction speed, labor intensity and project quality; mortar varieties that require high constructability mainly include: ordinary plastering mortar, thin-layer plastering mortar, and external thermal insulation system Plastering mortar, tile bonding mortar, plastering mortar for air-entrained concrete, interface mortar, putty, plastering gypsum, facing mortar and ground leveling mortar, etc. Most of these mortars need to be smoothed manually with a trowel. [0003] In the prior art, the workability of mortar is mainly represented by consistency, fluidity (expansion) and loss rate. However, they can only indirectly represent the workability of mortar, and cannot truly reflect the qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/38G01N11/10G01N11/14
CPCG01N33/38G01N11/10G01N11/14
Inventor 章银祥王肇嘉蔡鲁宏张增寿黄天勇田胜力陈向娟
Owner BBMG MORTAR CO LTD