Towards a comprehensive framework for foam concrete mix design
| dc.contributor.author | Breg, Justin | |
| dc.date.accessioned | 2020-01-23T17:57:18Z | |
| dc.date.available | 2020-01-23T17:57:18Z | |
| dc.date.issued | 2020-01-23 | |
| dc.date.submitted | 2020-01-07 | |
| dc.description.abstract | Foam concrete is a low-density, highly workable cementitious material, created by blending a fine-aggregate paste with a foaming agent. Properties of foam concrete suggest potential for commercial exploitation of the material in a wide variety of applications and markets. However, reliably designing a foam concrete mix to a particular specification has proved a difficult challenge and a barrier to more widespread usage. This thesis builds a comprehensive framework for foam concrete mix design. A strategic set of mixes, across a broad range of densities, cementitious densities, and cementitious blends, is evaluated for an extensive array of properties: compressive strength, density, slump flow, segregation, modulus of elasticity, Poisson’s ratio, crushing behaviour, creep, drying shrinkage, capillary water uptake, moisture storage, moisture movement, thermal conductivity, freeze-thaw resistance, and air-void distribution. Critical and previously neglected engineering properties are quantified and characterized. A proposed model assimilates interrelated trends, to explain observed behaviour of foam concrete in plastic, curing, and hardened phases at a micromechanical scale. Knowledge is summarized in a series of mix design guides, to assist in developing appropriate solutions for given applications, with less reliance on trial-and-error and speculation. Finally, this study lays a foundation for a systematic and methodologically consistent approach to future foam concrete research. | en |
| dc.identifier.uri | http://hdl.handle.net/10012/15549 | |
| dc.language.iso | en | en |
| dc.pending | false | |
| dc.publisher | University of Waterloo | en |
| dc.subject | foam concrete | en |
| dc.subject | mix design | en |
| dc.subject | creep | en |
| dc.subject | drying shrinkage | en |
| dc.subject | micromechanical model | en |
| dc.subject | silica fume | en |
| dc.subject | slag | en |
| dc.title | Towards a comprehensive framework for foam concrete mix design | en |
| dc.type | Doctoral Thesis | en |
| uws-etd.degree | Doctor of Philosophy | en |
| uws-etd.degree.department | Civil and Environmental Engineering | en |
| uws-etd.degree.discipline | Civil Engineering | en |
| uws-etd.degree.grantor | University of Waterloo | en |
| uws.contributor.advisor | Straube, John | |
| uws.contributor.advisor | West, Jeffrey | |
| uws.contributor.affiliation1 | Faculty of Engineering | en |
| uws.peerReviewStatus | Unreviewed | en |
| uws.published.city | Waterloo | en |
| uws.published.country | Canada | en |
| uws.published.province | Ontario | en |
| uws.scholarLevel | Graduate | en |
| uws.typeOfResource | Text | en |