| contributor author | Elke Gruyaert | |
| contributor author | Kim Van Tittelboom | |
| contributor author | Hubert Rahier | |
| contributor author | Nele De Belie | |
| date accessioned | 2017-05-08T22:08:34Z | |
| date available | 2017-05-08T22:08:34Z | |
| date copyright | July 2015 | |
| date issued | 2015 | |
| identifier other | 32635823.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/72194 | |
| description abstract | The low degree of hydration of fly ash (FA) and slag (BFS) particles in high-volume FA and BFS concrete offers the possibility to activate the unreacted particles upon crack formation to close the crack. In this paper, a preliminary study is performed to evaluate the use of alkaline activators to stimulate the formation of reaction products in the crack. First, the reaction rates of crushed pastes mixed with alkaline solutions or water were monitored by calorimetry. These tests showed that alkaline activators stimulate the reactions more than water. Secondly, cracked mortar beams were stored in different alkaline solutions or water and the crack self-closing ratio was calculated after microscopic investigation at different time intervals. The results indicated that reference mixes, containing only ordinary portland cement as binder, heal very well autogenously, while a solution of | |
| publisher | American Society of Civil Engineers | |
| title | Activation of Pozzolanic and Latent-Hydraulic Reactions by Alkalis in Order to Repair Concrete Cracks | |
| type | Journal Paper | |
| journal volume | 27 | |
| journal issue | 7 | |
| journal title | Journal of Materials in Civil Engineering | |
| identifier doi | 10.1061/(ASCE)MT.1943-5533.0001162 | |
| tree | Journal of Materials in Civil Engineering:;2015:;Volume ( 027 ):;issue: 007 | |
| contenttype | Fulltext | |
