A Study on the Mechanical Properties and Microcosmic Mechanism of Basalt Fiber Modified Rubber Ceramsite Concrete
In order to solve the problem of black pollution in the 21st century, a new type of rubber ceramsite concrete was prepared by pulverizing waste rubber tires into granules and adding aggregate to the ceramsite concrete. In order to reduce the weakening of mechanical properties of rubber, basalt fiber...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/2/103 |
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| author | Changming Bu Dongxu Zhu Lei Liu Xinyu Lu Yi Sun Zhitao Yan Linwen Yu Qike Wei |
| author_facet | Changming Bu Dongxu Zhu Lei Liu Xinyu Lu Yi Sun Zhitao Yan Linwen Yu Qike Wei |
| author_sort | Changming Bu |
| collection | DOAJ |
| description | In order to solve the problem of black pollution in the 21st century, a new type of rubber ceramsite concrete was prepared by pulverizing waste rubber tires into granules and adding aggregate to the ceramsite concrete. In order to reduce the weakening of mechanical properties of rubber, basalt fiber was used to modify the rubber. In this study, the compressive strength and splitting tensile strength of concrete specimens at days 3 and 28 were measured, the variation rule of compressive strength was explained based on the appearance of the microstructure, and the internal porosity of cubic specimens was characterized by the water absorption size. At the same time, an ultrasonic wave velocity test was used to test the uniformity and pore distribution of the block. The results showed that, with the increase in the rubber content, the compressive strength of rubber ceramsite concrete increases first and then decreases. The addition of basalt fiber can improve the compressive strength of the concrete. Water absorption is negatively correlated with compressive strength. Porosity is also negatively correlated with ultrasonic wave velocity. The basalt fiber length has no significant effect on the splitting tensile strength. |
| first_indexed | 2024-03-09T22:26:05Z |
| format | Article |
| id | doaj.art-7600925da0f047bf980cdb95a6dce4ae |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T22:26:05Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-7600925da0f047bf980cdb95a6dce4ae2023-11-23T19:04:59ZengMDPI AGBuildings2075-53092022-01-0112210310.3390/buildings12020103A Study on the Mechanical Properties and Microcosmic Mechanism of Basalt Fiber Modified Rubber Ceramsite ConcreteChangming Bu0Dongxu Zhu1Lei Liu2Xinyu Lu3Yi Sun4Zhitao Yan5Linwen Yu6Qike Wei7School of Civil Engineering and Architecture, Chongqing University of Science & Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science & Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science & Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science & Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science & Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science & Technology, Chongqing 401331, ChinaSchool of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaChina Metallurgical Construction Engineering Group Construction, Ltd., Chongqing 400084, ChinaIn order to solve the problem of black pollution in the 21st century, a new type of rubber ceramsite concrete was prepared by pulverizing waste rubber tires into granules and adding aggregate to the ceramsite concrete. In order to reduce the weakening of mechanical properties of rubber, basalt fiber was used to modify the rubber. In this study, the compressive strength and splitting tensile strength of concrete specimens at days 3 and 28 were measured, the variation rule of compressive strength was explained based on the appearance of the microstructure, and the internal porosity of cubic specimens was characterized by the water absorption size. At the same time, an ultrasonic wave velocity test was used to test the uniformity and pore distribution of the block. The results showed that, with the increase in the rubber content, the compressive strength of rubber ceramsite concrete increases first and then decreases. The addition of basalt fiber can improve the compressive strength of the concrete. Water absorption is negatively correlated with compressive strength. Porosity is also negatively correlated with ultrasonic wave velocity. The basalt fiber length has no significant effect on the splitting tensile strength.https://www.mdpi.com/2075-5309/12/2/103ceramsite concretemicroscopic researchbasalt fibercompressive strengthrubber |
| spellingShingle | Changming Bu Dongxu Zhu Lei Liu Xinyu Lu Yi Sun Zhitao Yan Linwen Yu Qike Wei A Study on the Mechanical Properties and Microcosmic Mechanism of Basalt Fiber Modified Rubber Ceramsite Concrete Buildings ceramsite concrete microscopic research basalt fiber compressive strength rubber |
| title | A Study on the Mechanical Properties and Microcosmic Mechanism of Basalt Fiber Modified Rubber Ceramsite Concrete |
| title_full | A Study on the Mechanical Properties and Microcosmic Mechanism of Basalt Fiber Modified Rubber Ceramsite Concrete |
| title_fullStr | A Study on the Mechanical Properties and Microcosmic Mechanism of Basalt Fiber Modified Rubber Ceramsite Concrete |
| title_full_unstemmed | A Study on the Mechanical Properties and Microcosmic Mechanism of Basalt Fiber Modified Rubber Ceramsite Concrete |
| title_short | A Study on the Mechanical Properties and Microcosmic Mechanism of Basalt Fiber Modified Rubber Ceramsite Concrete |
| title_sort | study on the mechanical properties and microcosmic mechanism of basalt fiber modified rubber ceramsite concrete |
| topic | ceramsite concrete microscopic research basalt fiber compressive strength rubber |
| url | https://www.mdpi.com/2075-5309/12/2/103 |
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