Device and method for evaluating segregation degree of cement concrete

A technology of cement concrete and evaluation device, which is applied in measurement devices, analytical materials, instruments, etc., can solve problems such as the degree of segregation that cannot be reflected, and achieve the effects of good economy, reliable experimental data and convenient operation.

Active Publication Date: 2015-08-26
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What are used now are some indirect evaluation methods, mainly the slump method. The slump method indirectly reflects the segregation resistance of reactive concrete through cohesion. The slump method can only evaluate the initial concrete segregation degree and cannot reflect the final degree of segregation

Method used

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  • Device and method for evaluating segregation degree of cement concrete

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Experimental program
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Embodiment Construction

[0027] The present invention is described in further detail below in conjunction with accompanying drawing:

[0028] refer to figure 1 , The device for evaluating the segregation degree of cement concrete of the present invention includes: a supporting component, a testing component and a density testing component. The support components include:

[0029] The base 1 stabilizes the upper structure and plays a supporting role;

[0030] Vertical arm 2, its function is to fix the crossbeam on the base to make room for placing experimental components;

[0031] Beam 3, its function is to fix the stirring device on the experimental part, to facilitate the experiment;

[0032] Lifting device 4, its function is to make stirring device enter or break away from 14 holding chambers;

[0033] Bolt 5, its function is to fix the test part on the base;

[0034] The test components include:

[0035] Fixing screw 11, its effect is to combine with fixing bolt 5 and test part is fixed on th...

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Abstract

The invention discloses a device and a method for evaluating the segregation degree of cement concrete. The device comprises a supporting component, a testing component and a density measuring component, wherein the supporting component comprises a base, a vertical arm, a cross beam, a lifting device and a bolt; the testing component comprises a fixing screw, a vibrating device and a containing chamber; the density measuring component comprises a stand column, a density instrument, a sliding rail, a fixing device and a guide rail. The device can simulate vibrating conditions of the cement concrete during transportation and vibration to provide more real testing data. The density measuring component is added, so that the density of the cement concrete can be measured accurately in real time. The testing device is convenient to operate, good in economy and high in practical value.

Description

technical field [0001] The invention belongs to the field of civil engineering concrete construction, and relates to a cement concrete segregation degree evaluation device and an evaluation method thereof, which are used for evaluating the cement concrete segregation degree and can provide reliable experimental data. Background technique [0002] Concrete segregation is a phenomenon in which the cohesion between the constituent materials of the concrete mixture is insufficient to resist the sinking of the coarse aggregate, and the components of the concrete mixture are separated from each other, resulting in uneven internal composition and structure. It usually shows that the coarse aggregate and the mortar are separated from each other, for example, the dense particles are deposited at the bottom of the large mixture, or the coarse aggregate is separated from the mixture as a whole. [0003] The reasons for segregation may be pouring, improper vibration, excessive maximum p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/36
Inventor 郑木莲王建亮袁海涛谢菲
Owner CHANGAN UNIV
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