Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range
The influence of microstructure of silica-enhanced cement on the mechanical performance of cement is difficult to describe. In this study, we used the scanning electron microscope and image processing method to investigate the relationship between the complicity of cement microstructure and compress...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Royal Society
2022-08-01
|
| Series: | Royal Society Open Science |
| Subjects: | |
| Online Access: | https://royalsocietypublishing.org/doi/10.1098/rsos.220150 |
| _version_ | 1827960616958033920 |
|---|---|
| author | Zhonggao Chen Jiapei Du Annan Zhou Chunyu Wang Yuhuan Bu Huajie Liu |
| author_facet | Zhonggao Chen Jiapei Du Annan Zhou Chunyu Wang Yuhuan Bu Huajie Liu |
| author_sort | Zhonggao Chen |
| collection | DOAJ |
| description | The influence of microstructure of silica-enhanced cement on the mechanical performance of cement is difficult to describe. In this study, we used the scanning electron microscope and image processing method to investigate the relationship between the complicity of cement microstructure and compressive strength under various temperatures and curing times. Fractal dimension was applied to describe the complicity of silica-enhanced cement. The relationships among compressive strength, fractal dimension, temperature, curing time and pore structure of cement were identified. The results show that curing time directly controls the complicity of microstructure of silica-enhanced cement and compressive strength by altering the pore orientation and macropore ratio in silica-enhanced cement. The curing temperature affects the complicity of cement microstructure and compressive strength indirectly by changing the ratio of micropore and small pore. The fractal dimension of silica-enhanced cement shows good correlation with compressive strength. Pore size distribution is the most important factor that influences the complicity of cement matrix and compressive strength of silica-enhanced cement. When building up the macroscopic mechanical performance model of silica-enhanced cement, we should consider the influence of pore size distribution in cement under different curing temperatures and times on the complicity of cement microstructure. |
| first_indexed | 2024-04-09T16:12:41Z |
| format | Article |
| id | doaj.art-bd8c0d2ddc8544d3b36e1cd9c903d569 |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-04-09T16:12:41Z |
| publishDate | 2022-08-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-bd8c0d2ddc8544d3b36e1cd9c903d5692023-04-24T09:17:22ZengThe Royal SocietyRoyal Society Open Science2054-57032022-08-019810.1098/rsos.220150Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature rangeZhonggao Chen0Jiapei Du1Annan Zhou2Chunyu Wang3Yuhuan Bu4Huajie Liu5School of Architecture, Yantai University, Yantai, Shandong 264005, People's Republic of ChinaSchool of Engineering, Royal Melbourne Institute of Technology, Melbourne, Victoria 3001, AustraliaSchool of Engineering, Royal Melbourne Institute of Technology, Melbourne, Victoria 3001, AustraliaCollege of Material Science and Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of ChinaCollege of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, AustraliaCollege of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, AustraliaThe influence of microstructure of silica-enhanced cement on the mechanical performance of cement is difficult to describe. In this study, we used the scanning electron microscope and image processing method to investigate the relationship between the complicity of cement microstructure and compressive strength under various temperatures and curing times. Fractal dimension was applied to describe the complicity of silica-enhanced cement. The relationships among compressive strength, fractal dimension, temperature, curing time and pore structure of cement were identified. The results show that curing time directly controls the complicity of microstructure of silica-enhanced cement and compressive strength by altering the pore orientation and macropore ratio in silica-enhanced cement. The curing temperature affects the complicity of cement microstructure and compressive strength indirectly by changing the ratio of micropore and small pore. The fractal dimension of silica-enhanced cement shows good correlation with compressive strength. Pore size distribution is the most important factor that influences the complicity of cement matrix and compressive strength of silica-enhanced cement. When building up the macroscopic mechanical performance model of silica-enhanced cement, we should consider the influence of pore size distribution in cement under different curing temperatures and times on the complicity of cement microstructure.https://royalsocietypublishing.org/doi/10.1098/rsos.220150fractal dimensioncompressive strengthsilica sand-enhanced cementtemperaturecuring timepore size distribution |
| spellingShingle | Zhonggao Chen Jiapei Du Annan Zhou Chunyu Wang Yuhuan Bu Huajie Liu Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range Royal Society Open Science fractal dimension compressive strength silica sand-enhanced cement temperature curing time pore size distribution |
| title | Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range |
| title_full | Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range |
| title_fullStr | Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range |
| title_full_unstemmed | Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range |
| title_short | Effects of microstructure on compressive strength of silica sand-enhanced oil well cement at a wide temperature range |
| title_sort | effects of microstructure on compressive strength of silica sand enhanced oil well cement at a wide temperature range |
| topic | fractal dimension compressive strength silica sand-enhanced cement temperature curing time pore size distribution |
| url | https://royalsocietypublishing.org/doi/10.1098/rsos.220150 |
| work_keys_str_mv | AT zhonggaochen effectsofmicrostructureoncompressivestrengthofsilicasandenhancedoilwellcementatawidetemperaturerange AT jiapeidu effectsofmicrostructureoncompressivestrengthofsilicasandenhancedoilwellcementatawidetemperaturerange AT annanzhou effectsofmicrostructureoncompressivestrengthofsilicasandenhancedoilwellcementatawidetemperaturerange AT chunyuwang effectsofmicrostructureoncompressivestrengthofsilicasandenhancedoilwellcementatawidetemperaturerange AT yuhuanbu effectsofmicrostructureoncompressivestrengthofsilicasandenhancedoilwellcementatawidetemperaturerange AT huajieliu effectsofmicrostructureoncompressivestrengthofsilicasandenhancedoilwellcementatawidetemperaturerange |