CN102662045A - Method for testing uniformity of light-weight aggregate concrete - Google Patents
Method for testing uniformity of light-weight aggregate concrete Download PDFInfo
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- CN102662045A CN102662045A CN2012101364788A CN201210136478A CN102662045A CN 102662045 A CN102662045 A CN 102662045A CN 2012101364788 A CN2012101364788 A CN 2012101364788A CN 201210136478 A CN201210136478 A CN 201210136478A CN 102662045 A CN102662045 A CN 102662045A
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- aggregate concrete
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Abstract
The invention discloses a method for testing uniformity of light-weight aggregate concrete, which belongs to the technical field of concrete uniformity tests. The method comprises the following steps of: splitting a light-weight aggregate concrete sample along a plane vertical to a pouring surface, to obtain a section; imaging the section: enabling the pouring surface to be upwards when in imaging and respectively imaging the upper portion and the lower portion of the section which are equal; inputting images of the upper part and the lower part of the section to an image analysis software; to calculate quantity and areas of light-weight aggregates on the upper part and the lower part; analyzing distribution situation of the light-weight aggregates of the section; to judge the uniformity of the concrete. The method has simple process, and is convenient to operate. The distribution situation of the light-weight aggregates of the section of the sample is used as a basis, so that the uniformity of the light-weight aggregate concrete can be effectively tested. The distribution of the light-weight aggregates of the sample is analyzed directly, so that errors produced when the sample is equally cut into the upper part and the lower part are avoided. Through analyzing the uniformity of the light-weight aggregate concrete on the section of the sample, damage to the whole sample is avoided, and simplicity, convenience, economy and accuracy are realized.
Description
Technical field
The present invention relates to the homogeneity of concrete test, the particularly test of lightweight aggregate concrete homogeneity is a kind of method of testing of homogeneity of concrete.
Background technology
The test of lightweight aggregate concrete homogeneity is a difficult point in present technique field always, and the method for testing of existing lightweight aggregate concrete homogeneity mainly is to adopt method of observing directly perceived, lacks accuracy.Perhaps, the plane that the concrete test block edge is parallel with the face of building on average cuts into upper and lower two, contrasts the quality of upper and lower test block; Perhaps contrast the quality of the contained lightweight aggregate of upper and lower test block.But these methods have error in the operating process, and workload are bigger owing to need on average cut into upper and lower two to test block.So be badly in need of a kind of accurate, simple lightweight aggregate concrete homogeneity method of testing.
Summary of the invention
The objective of the invention is deficiency, a kind of lightweight aggregate concrete homogeneity method of testing is provided to the prior art existence.
The objective of the invention is to realize that through following technical scheme lightweight aggregate concrete homogeneity method of testing is characterized in that may further comprise the steps:
(1) lightweight aggregate concrete test block edge is cut open perpendicular to the plane of the face of building, got its section;
(2) the lightweight aggregate concrete test block of cutting open that step (1) is obtained is built and is faced up, and section is divided into upper and lower two parts, with fluorescent microscope or digital equipment section is adopted picture;
(3) image that the upper and lower two parts of test block section that step (2) obtained are gathered is imported Image-pro Plus image analysis software, calculates the quantity and the area of upper and lower two-part lightweight aggregate;
(4) step (3) result calculated is carried out analysis section lightweight aggregate distribution situation; The homogeneity of evaluation lightweight aggregate concrete test block; Upper and lower two-part lightweight aggregate quantity of test block section and area are approaching more, explain that concrete homogeneity is good more, otherwise then poor more.
Described lightweight aggregate concrete is lightweight aggregate concretes such as haydite concrete, expanded perlite concrete, vermiculite concrete.
Technology of the present invention is simple, and is easy to operate.The invention has the beneficial effects as follows: (1) is foundation with test block section lightweight aggregate distribution situation, can effectively test the homogeneity of lightweight aggregate concrete accurately.(2) directly the section lightweight aggregate of test block is analyzed the error that produces when avoiding that test block on average cut into upper and lower two parts.(3) analyze through the section lightweight aggregate to test block, the homogeneity of test lightweight aggregate concrete is avoided the destruction to whole test specimen, and is easy, economical, accurate.
Description of drawings
Fig. 1 is a lightweight aggregate concrete test block sectional schematic diagram.
Fig. 2 is the first half synoptic diagram among Fig. 1.
Fig. 3 is the latter half synoptic diagram among Fig. 1.
Among the figure: the 1-lightweight aggregate.
Embodiment
The lightweight aggregate concrete test specimen along cutting open perpendicular to the plane of the face of building, is got its section.Its section is adopted picture, adopt as the time build test block and face up, section is divided into upper and lower two parts, with fluorescent microscope or digital equipment etc. section is adopted picture.The upper and lower two-part image input Image-pro Plus image analysis software of section, calculate the quantity and the area of upper and lower two-part lightweight aggregate respectively.Analysis section lightweight aggregate distribution situation, the quantity and the area of the upper and lower two parts lightweight aggregate of comparison section, upper and lower two-part lightweight aggregate quantity of section and area are approaching more, explain that concrete homogeneity is good more, otherwise then poor more.
Claims (2)
1. lightweight aggregate concrete homogeneity method of testing is characterized in that may further comprise the steps:
(1) lightweight aggregate concrete test block edge is cut open perpendicular to the plane of the face of building, got its section;
(2) the lightweight aggregate concrete test block of cutting open that step (1) is obtained is built and is faced up, and section is divided into upper and lower two parts, with fluorescent microscope or digital equipment section is adopted picture;
(3) image that the upper and lower two parts of test block section that step (2) obtained are gathered is imported Image-pro Plus image analysis software, calculates the quantity and the area of upper and lower two-part lightweight aggregate;
(4) step (3) result calculated is carried out analysis section lightweight aggregate distribution situation; The homogeneity of evaluation lightweight aggregate concrete test block; Upper and lower two-part lightweight aggregate quantity of test block section and area are approaching more, explain that concrete homogeneity is good more, otherwise then poor more.
2. lightweight aggregate concrete homogeneity method of testing according to claim 1 is characterized in that described lightweight aggregate concrete is haydite concrete or expanded perlite concrete or vermiculite concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101364788A CN102662045A (en) | 2012-05-05 | 2012-05-05 | Method for testing uniformity of light-weight aggregate concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101364788A CN102662045A (en) | 2012-05-05 | 2012-05-05 | Method for testing uniformity of light-weight aggregate concrete |
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| CN102662045A true CN102662045A (en) | 2012-09-12 |
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| CN2012101364788A Pending CN102662045A (en) | 2012-05-05 | 2012-05-05 | Method for testing uniformity of light-weight aggregate concrete |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645735A (en) * | 2018-04-02 | 2018-10-12 | 三峡大学 | A kind of evaluation method of Homogeneity of Asphalt Mixture |
| CN108956389A (en) * | 2018-05-28 | 2018-12-07 | 中国铁道科学研究院铁道建筑研究所 | A kind of homogeneity of concrete test method based on photoreception granule |
| CN111521502A (en) * | 2020-04-24 | 2020-08-11 | 中国建材检验认证集团贵州有限公司 | Method for judging concrete homogeneity |
| CN112462040A (en) * | 2020-11-18 | 2021-03-09 | 湖北工业大学 | Uniformity judging method in concrete two-dimensional random aggregate feeding process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673150U (en) * | 2010-05-13 | 2010-12-15 | 青岛新型建设机械有限公司 | Concrete uniformity testing device |
| CN102012356A (en) * | 2010-11-25 | 2011-04-13 | 东南大学 | Quick test method for aggregate grade of asphalt concrete pavement |
| JP2012002531A (en) * | 2010-06-14 | 2012-01-05 | Taisei Corp | Crack detection method |
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2012
- 2012-05-05 CN CN2012101364788A patent/CN102662045A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673150U (en) * | 2010-05-13 | 2010-12-15 | 青岛新型建设机械有限公司 | Concrete uniformity testing device |
| JP2012002531A (en) * | 2010-06-14 | 2012-01-05 | Taisei Corp | Crack detection method |
| CN102012356A (en) * | 2010-11-25 | 2011-04-13 | 东南大学 | Quick test method for aggregate grade of asphalt concrete pavement |
Non-Patent Citations (2)
| Title |
|---|
| 彭勇 等: "一种基于数字图像处理技术的沥青混合料均匀性研究新方法", 《公路交通科技》 * |
| 赵青林 等: "基于图像模式识别的混凝土二维显微结构研究进展及问题分析", 《混凝土》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645735A (en) * | 2018-04-02 | 2018-10-12 | 三峡大学 | A kind of evaluation method of Homogeneity of Asphalt Mixture |
| CN108956389A (en) * | 2018-05-28 | 2018-12-07 | 中国铁道科学研究院铁道建筑研究所 | A kind of homogeneity of concrete test method based on photoreception granule |
| CN111521502A (en) * | 2020-04-24 | 2020-08-11 | 中国建材检验认证集团贵州有限公司 | Method for judging concrete homogeneity |
| CN112462040A (en) * | 2020-11-18 | 2021-03-09 | 湖北工业大学 | Uniformity judging method in concrete two-dimensional random aggregate feeding process |
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Application publication date: 20120912 |