Fatigue Performance and Multiscale Mechanisms of Concrete Toughened by Polymers and Waste Rubber
For improving bending toughness and fatigue performance of brittle cement-based composites, two types of water-soluble polymers (such as dispersible latex powder and polyvinyl alcohol powder) and waste tire-rubber powders are added to concrete as admixtures. Multiscale toughening mechanisms of these...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/684207 |
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| author | Bo Chen Liping Guo Wei Sun |
| author_facet | Bo Chen Liping Guo Wei Sun |
| author_sort | Bo Chen |
| collection | DOAJ |
| description | For improving bending toughness and fatigue performance of brittle cement-based composites, two types of water-soluble polymers (such as dispersible latex powder and polyvinyl alcohol powder) and waste tire-rubber powders are added to concrete as admixtures. Multiscale toughening mechanisms of these additions in concretes were comprehensively investigated. Four-point bending fatigue performance of four series concretes is conducted under a stress level of 0.70. The results show that the effects of dispersible latex powder on bending toughness and fatigue life of concrete are better than those of polyvinyl alcohol powder. Furthermore, the bending fatigue lives of concrete simultaneously containing polymers and waste rubber powders are larger than those of concrete with only one type of admixtures. The multiscale physics-chemical mechanisms show that high bonding effect and high elastic modulus of polymer films as well as good elastic property and crack-resistance of waste tire-rubber powders are beneficial for improving bending toughness and fatigue life of cementitious composites. |
| format | Article |
| id | doaj-art-a4bef2650d534050aa7c5afb2dc8c512 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a4bef2650d534050aa7c5afb2dc8c5122025-02-03T01:21:40ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422014-01-01201410.1155/2014/684207684207Fatigue Performance and Multiscale Mechanisms of Concrete Toughened by Polymers and Waste RubberBo Chen0Liping Guo1Wei Sun2School of Materials Science and Engineering, Southeast University, Dongnan Daxue Road No. 2, Nanjing 211189, ChinaSchool of Materials Science and Engineering, Southeast University, Dongnan Daxue Road No. 2, Nanjing 211189, ChinaSchool of Materials Science and Engineering, Southeast University, Dongnan Daxue Road No. 2, Nanjing 211189, ChinaFor improving bending toughness and fatigue performance of brittle cement-based composites, two types of water-soluble polymers (such as dispersible latex powder and polyvinyl alcohol powder) and waste tire-rubber powders are added to concrete as admixtures. Multiscale toughening mechanisms of these additions in concretes were comprehensively investigated. Four-point bending fatigue performance of four series concretes is conducted under a stress level of 0.70. The results show that the effects of dispersible latex powder on bending toughness and fatigue life of concrete are better than those of polyvinyl alcohol powder. Furthermore, the bending fatigue lives of concrete simultaneously containing polymers and waste rubber powders are larger than those of concrete with only one type of admixtures. The multiscale physics-chemical mechanisms show that high bonding effect and high elastic modulus of polymer films as well as good elastic property and crack-resistance of waste tire-rubber powders are beneficial for improving bending toughness and fatigue life of cementitious composites.http://dx.doi.org/10.1155/2014/684207 |
| spellingShingle | Bo Chen Liping Guo Wei Sun Fatigue Performance and Multiscale Mechanisms of Concrete Toughened by Polymers and Waste Rubber Advances in Materials Science and Engineering |
| title | Fatigue Performance and Multiscale Mechanisms of Concrete Toughened by Polymers and Waste Rubber |
| title_full | Fatigue Performance and Multiscale Mechanisms of Concrete Toughened by Polymers and Waste Rubber |
| title_fullStr | Fatigue Performance and Multiscale Mechanisms of Concrete Toughened by Polymers and Waste Rubber |
| title_full_unstemmed | Fatigue Performance and Multiscale Mechanisms of Concrete Toughened by Polymers and Waste Rubber |
| title_short | Fatigue Performance and Multiscale Mechanisms of Concrete Toughened by Polymers and Waste Rubber |
| title_sort | fatigue performance and multiscale mechanisms of concrete toughened by polymers and waste rubber |
| url | http://dx.doi.org/10.1155/2014/684207 |
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