Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring
In this study, 16 groups of tests were designed by the orthogonal test method, and a PU grouting material was prepared, which can be used for the construction of sealing wall in mined-out area of coal mine. The basic properties of the material were measured. Firstly, the viscosity of four groups of...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/8888691 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832566274095316992 |
|---|---|
| author | Baihui Ren Jianjun Shen Weitao Liu Yingying Hu Qing Cao |
| author_facet | Baihui Ren Jianjun Shen Weitao Liu Yingying Hu Qing Cao |
| author_sort | Baihui Ren |
| collection | DOAJ |
| description | In this study, 16 groups of tests were designed by the orthogonal test method, and a PU grouting material was prepared, which can be used for the construction of sealing wall in mined-out area of coal mine. The basic properties of the material were measured. Firstly, the viscosity of four groups of samples with different polyether polyol contents was measured by a dynamic rheometer. Secondly, the uniaxial compressive strength of pure slurry samples and sand-containing samples was measured by a universal testing machine. Finally, the failure process of sand-containing samples was monitored by acoustic emission equipment. Through the above research and analysis, a PU grouting material with excellent performance has been obtained. That is, when the ratio of polyether triol:polyether tetraol:catalyst:surfactant:chain extender:plasticizer is 11 : 9 : 0.5 : 1.0 : 1.2 : 6.0, PU grouting material has higher injectability and ideal compressive strength, which has been proved in grouting experiments. |
| format | Article |
| id | doaj-art-51065da60bb8402baeffe7d075bbbe5c |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-51065da60bb8402baeffe7d075bbbe5c2025-02-03T01:04:31ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/88886918888691Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission MonitoringBaihui Ren0Jianjun Shen1Weitao Liu2Yingying Hu3Qing Cao4College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Chemical Engineering and Safety, Binzhou Key Laboratory of Chemical Process Safety, Binzhou University, Binzhou 256600, ChinaCollege of Chemical Engineering and Safety, Binzhou Key Laboratory of Chemical Process Safety, Binzhou University, Binzhou 256600, ChinaIn this study, 16 groups of tests were designed by the orthogonal test method, and a PU grouting material was prepared, which can be used for the construction of sealing wall in mined-out area of coal mine. The basic properties of the material were measured. Firstly, the viscosity of four groups of samples with different polyether polyol contents was measured by a dynamic rheometer. Secondly, the uniaxial compressive strength of pure slurry samples and sand-containing samples was measured by a universal testing machine. Finally, the failure process of sand-containing samples was monitored by acoustic emission equipment. Through the above research and analysis, a PU grouting material with excellent performance has been obtained. That is, when the ratio of polyether triol:polyether tetraol:catalyst:surfactant:chain extender:plasticizer is 11 : 9 : 0.5 : 1.0 : 1.2 : 6.0, PU grouting material has higher injectability and ideal compressive strength, which has been proved in grouting experiments.http://dx.doi.org/10.1155/2021/8888691 |
| spellingShingle | Baihui Ren Jianjun Shen Weitao Liu Yingying Hu Qing Cao Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring Shock and Vibration |
| title | Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring |
| title_full | Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring |
| title_fullStr | Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring |
| title_full_unstemmed | Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring |
| title_short | Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring |
| title_sort | fracture characteristics of polyurethane grouting materials based on acoustic emission monitoring |
| url | http://dx.doi.org/10.1155/2021/8888691 |
| work_keys_str_mv | AT baihuiren fracturecharacteristicsofpolyurethanegroutingmaterialsbasedonacousticemissionmonitoring AT jianjunshen fracturecharacteristicsofpolyurethanegroutingmaterialsbasedonacousticemissionmonitoring AT weitaoliu fracturecharacteristicsofpolyurethanegroutingmaterialsbasedonacousticemissionmonitoring AT yingyinghu fracturecharacteristicsofpolyurethanegroutingmaterialsbasedonacousticemissionmonitoring AT qingcao fracturecharacteristicsofpolyurethanegroutingmaterialsbasedonacousticemissionmonitoring |