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Device and method of measuring working performance of pervious concrete

A technology of permeable concrete and work performance, applied in the direction of material inspection products, etc., can solve the problems of less permeable concrete and impracticality

Pending Publication Date: 2018-01-12
CHINA GEZHOUBA GRP SURVEY DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are few methods for evaluating the performance of permeable concrete, and they are not practical.
Taking the traditional method, that is, the workability and slump of concrete, as the evaluation method also has great limitations

Method used

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  • Device and method of measuring working performance of pervious concrete
  • Device and method of measuring working performance of pervious concrete
  • Device and method of measuring working performance of pervious concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like Figure 1-4 Shown is a device for measuring the performance of permeable concrete, which consists of upper and lower parts that can be disassembled and assembled. Wherein, the upper part includes a test detection barrel 5, the test detection barrel 5 is detachably installed on the top of the fixed frame 9, the top of the test detection barrel 5 is provided with a transparent disc 3, and the transparent disc 3 A counterweight device is installed on the top. Described lower part comprises base 12, and vibrating table 10 is installed on described base 12, and vibrating motor 11 is installed in the bottom of vibrating table 10, and mirror 8 is arranged directly below test detection bucket 5, and described mirror 8 Fixedly installed on the base 12. By adopting the above-mentioned device, it can be used for subsequent testing of the working performance of permeable concrete.

[0038] Further, the fixed frame 9 is welded and assembled by a vertical bar and a horizontal...

Embodiment 2

[0047] The method of using any one of the devices for measuring the performance of permeable concrete, it may further comprise the steps:

[0048] Step1: Sample preparation, put the admixture in three layers and put it into the test detection barrel 5. After the admixture in each layer is tamped, it is about 1 / 3 of the height of the cylinder. Insert a tamping rod evenly on the section of each layer for 25-35 Second, when inserting and pounding the second layer of suction top layer, it should be inserted through this layer and make the tamping rod just enter the lower layer, after the top layer is compacted, just scrape flat along the upper mouth of the test detection barrel 5 with a flat plate;

[0049] Step2: Fix the test detection barrel 5, insert the 4 vertical steel pipes of the fixing frame 9 into the cylindrical holes 13 on the test detection barrel, place the bottom of the test detection barrel 5 on the cross bar, and fix the test detection barrel with nuts;

[0050]Ste...

Embodiment 3

[0056] A method for measuring the performance of permeable concrete, the method comprising the following steps:

[0057] Sample preparation: prepare the mixture according to the designed mixing ratio, stir evenly, carry out the test according to the cooking time of 30min, 60min, 90min, and 120min respectively, and put it into the test detection barrel in three layers. It is 1 / 3 of the height of the cylinder. Insert and tamp 25 times evenly with a tamping stick on the cross section of each layer. When inserting and tamping the second layer of suction top layer, it should be inserted through this layer and make the tamping stick just enter the lower layer. The top layer is tamped. Use a flat plate to scrape flat along the top of the test barrel.

[0058] Fix the test barrel: insert the 4 steel pipes of the fixing frame into the small cylindrical holes on the test barrel, place the bottom of the test barrel on the horizontal connecting rod, and fix the test barrel with nuts.

[...

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Abstract

The invention discloses a device and a method of measuring the working performance of pervious concrete. The device comprises an upper part and a lower part in detachable assembly, wherein the upper part comprises a test detection barrel; the test detection barrel is detachably mounted at the top of a fixing frame; a transparent disc is arranged at the top of the test detection barrel; a counter weight device is mounted at the top of the transparent disc; the lower part comprises a base; a vibrating table is mounted on the base; a vibrating motor is mounted at the bottom of the vibrating table; a reflector is arranged below the test detection barrel and is fixed on the base. The method can be used for quantitatively evaluating the working performance of pervious concrete so as to ensure good working performance of the pervious concrete in different working conditions and improve the construction quality.

Description

technical field [0001] The invention relates to the field of building material performance testing equipment, in particular to a method and device for measuring the working performance of permeable concrete. Background technique [0002] Permeable concrete is porous concrete, which is a kind of porous lightweight concrete made by mixing aggregate, cement and water. It does not contain or contain a small amount of fine aggregate, and the surface of coarse aggregate is covered with a thin layer of cement slurry. Bonded to form a honeycomb structure with uniform distribution of holes, so it has the characteristics of air permeability, water permeability, light weight and high heat dissipation, can effectively replenish groundwater, alleviate some urban environmental problems such as the sharp drop in the groundwater level of the city, and can effectively eliminate The oil compounds on the ground are harmful to environmental pollution. At the same time, it is an excellent paveme...

Claims

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Application Information

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IPC IPC(8): G01N33/38
Inventor 曾伟李博汤春明罗丽文
Owner CHINA GEZHOUBA GRP SURVEY DESIGN CO LTD
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