| contributor author | Doo-Yeol Yoo | |
| contributor author | Gum-Sung Ryu | |
| contributor author | Tianfeng Yuan | |
| contributor author | Kyung-Taek Koh | |
| contributor author | Young-Soo Yoon | |
| date accessioned | 2017-05-08T22:22:50Z | |
| date available | 2017-05-08T22:22:50Z | |
| date copyright | June 2015 | |
| date issued | 2015 | |
| identifier other | 43768413.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/79115 | |
| description abstract | This study investigates the effect of the strand-to-duct area ratio on the shrinkage cracking behavior of posttensioning grout. The free shrinkage behavior of grout was evaluated using various duct diameters. Test results indicated that the expansion and shrinkage strains of grout increased with the duct diameter. The strain of a restrained strand was barely affected by the number of strands but was significantly affected by the strand-to-duct area ratio. The specimen with a strand-to-duct area ratio greater than 0.3 showed shrinkage cracks in fewer than 30 days. Increasing the strand-to-duct area ratio shortened the cracking time. All the test specimens showed bleeding immediately after pumping, along with air void pockets in the grout. | |
| publisher | American Society of Civil Engineers | |
| title | Cracking Behavior of Posttensioning Grout with Various Strand-to-Duct Area Ratios | |
| type | Journal Paper | |
| journal volume | 27 | |
| journal issue | 6 | |
| journal title | Journal of Materials in Civil Engineering | |
| identifier doi | 10.1061/(ASCE)MT.1943-5533.0001152 | |
| tree | Journal of Materials in Civil Engineering:;2015:;Volume ( 027 ):;issue: 006 | |
| contenttype | Fulltext | |
