A test device and test method for foam concrete bubble stability

A foam concrete and testing device technology, applied in the field of foam concrete, can solve the problems of long time consumption, low accuracy, difficult quantitative evaluation of bubble stability, etc., and achieve the goals of shortening the test cycle, high reliability and accuracy, and improving work efficiency Effect

Active Publication Date: 2022-05-17
HARBIN INST OF TECH
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Problems solved by technology

[0005] The present invention aims to solve the problem that the existing method for judging the pore structure of foamed concrete is time-consuming and has a low degree of accuracy, and it is difficult to quantitatively evaluate the bubble stability of freshly mixed foamed concrete under different ambient temperatures and pressures, and it is impossible to monitor the fusion or floating of bubbles problem, and then provides a test device and test method for foam concrete bubble stability

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  • A test device and test method for foam concrete bubble stability
  • A test device and test method for foam concrete bubble stability

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specific Embodiment approach 1

[0039] Specific embodiment one: combination Figure 1 and Figure 2 Illustrating the present embodiment, a foam concrete bubble stability test apparatus, which comprises a pressurized assembly, a sealed piston plate 1, an inner cylinder container 2, an outer cylinder container 3, a water bath temperature control device 4, a data acquisition device 5, a microcomputer control device 6, an acoustic signal transmitter 7 and a plurality of acoustic signal receivers 8,

[0040] Outer cylinder container 3 coaxial sleeve is located outside the inner cylinder container 2, the outer cylinder container 3 inner wall and the inner cylinder container 2 outer wall between the formation of a closed cavity, the outer cylinder container 3 of the cylinder wall is provided with two circulation interfaces, the cavity and the water bath temperature control equipment is connected, the bottom coaxial of the inner cylinder container 2 is provided with a pole 9, the acoustic signal transmitter 7 is installe...

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Abstract

The invention discloses a test device and a test method for the bubble stability of foam concrete, which belong to the technical field of foam concrete. The present invention solves the problem that the existing method for judging the pore structure of foamed concrete is time-consuming and has low accuracy, and it is difficult to quantitatively evaluate the bubble stability of freshly mixed foamed concrete under different ambient temperatures and pressures, and it is impossible to monitor the fusion or floating of bubbles The problem. It includes a pressurized component, a sealed piston plate, an inner cylinder container, an outer cylinder container, a water bath temperature control device, a data acquisition device, a microcomputer control device, an acoustic signal transmitter and several acoustic signal receivers. Through the test device and test method of the present application, the rapid evaluation and continuous monitoring of the bubble stability in the freshly mixed foam concrete slurry under different ambient temperatures and pressures have been realized, which is different from the prior art for testing the foam concrete hardened pore structure. Compared with the method, the test period is greatly shortened and the work efficiency is improved.

Description

Technical field [0001] The present invention relates to a foam concrete bubble stability test apparatus and test method, belongs to the field of foam concrete technology. Background [0002] Foam concrete is a kind of lightweight porous material that is mechanically prepared by the foam solution of the foaming agent solution, and then added to the cement slurry to be mixed evenly and poured, and contains a large number of closed and small pores inside. According to the classification of different density grades, it can be widely used in lightweight structures, building insulation, sound absorption and heat insulation, masonry filling and impact blocking. In recent years, with the large-scale application of foam concrete components and products and the rapid development of the industry, foam concrete functional materials have received more and more attention, but because the bubble stability in the new mixed slurry is difficult to assess and control, the quality of foam concrete ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/02
CPCG01N29/02G01N2291/02433G01N2291/105Y02W30/91
Inventor 高小建张俊逸邓宏卫
Owner HARBIN INST OF TECH
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