| dc.contributor.author | Choi, Hun | |
| dc.date.accessioned | 2018-03-29T17:10:31Z | |
| dc.date.available | 2018-03-29T17:10:31Z | |
| dc.date.issued | 2018-03-29T17:10:31Z | |
| dc.identifier.uri | http://hdl.handle.net/10222/73797 | |
| dc.description | The objective of this paper is to evaluate the durability of a manufactured ACT aggregate. The waste material is derived from cement kiln dust (CKD) used in this research.
In this paper, a review is provided of the the ACT aggregate manufacturing process as well as the test methods to perform the strength and durability testing on the aggregate. Aggregate durability is assessed via particle breakage, which is considered the limiting factor in geotechnical applications for the ACT aggregate. Test results such as triaxial, freeze thaw and compressive strength are presented which evaluate the particle breakage of ACT aggregate. Different particle sizes (2.5mm-1.25mm, 5mm-2.55mm and entire size) of the ACT aggregates were investigated to show the influence of particle size on durability. Preliminary results show that size plays a significant role in the ACT aggregate’s durability. | en_US |
| dc.description.abstract | Accelerated carbonation technology (ACT) is the addition of carbon dioxide and water and/or binder to a waste material to change an initially fine-grained waste material to an aggregate. For use in geotechnical applications, ACT aggregates must be durable. The objective of this thesis is to evaluate the durability (i.e. particle breakage) of a manufactured ACT aggregate made from cement kiln dust (CKD).
For an initial trial of ACT aggregate, several geotechnical tests related to the aggregate’s physical and chemical characteristics were performed. After refinement of the manufacturing process, it was shown that much stronger (3 MPa) ACT aggregate from CKD could be achieved. Hardin relative breakage (Br) was used to compare particle breakage under a variety of loading conditions (triaxial compression, triaxial shear and freeze-thaw) and particle size. It was shown that the 2.5mm to 1.25mm size had superior performance with respect to particle breakage under all the loading conditions. | en_US |
| dc.language.iso | en | en_US |
| dc.subject | Accelerated Carbonation Technology | en_US |
| dc.subject | Cement Kiln Dust | en_US |
| dc.subject | Aggregate | en_US |
| dc.title | Assessing Durability of Cement Kiln Dust Manufactured Aggregates | en_US |
| dc.type | Thesis | en_US |
| dc.date.defence | 2018-03-15 | |
| dc.contributor.department | Department of Civil Engineering | en_US |
| dc.contributor.degree | Master of Science | en_US |
| dc.contributor.external-examiner | n/a | en_US |
| dc.contributor.graduate-coordinator | Dr. Hany El Naggar | en_US |
| dc.contributor.thesis-reader | Dr. Nouman Ali | en_US |
| dc.contributor.thesis-reader | Dr. Rob Jamieson | en_US |
| dc.contributor.thesis-supervisor | Dr. Lake Craig | en_US |
| dc.contributor.thesis-supervisor | Dr. Colin Hills | en_US |
| dc.contributor.ethics-approval | Not Applicable | en_US |
| dc.contributor.manuscripts | Not Applicable | en_US |
| dc.contributor.copyright-release | Yes | en_US |
