Event Title
Development and Localisation of Ultra High Performance Concrete using a Particle Packing Model
Location
Cork Institute of Technology, Cork, Ireland
Event Website
https://event.ceri2020.exordo.com/
Start Date
27-8-2020 10:30 AM
End Date
27-8-2020 11:45 AM
Description
Ultra-high performance fibre reinforced concrete (UHPFRC) is used worldwide to improve the structural performance of infrastructure such as bridges, extend their working life and reduce environmental impact. As a result thinner structures are constructed leading to reductions in the structure’s self-weight and the volume of concrete and natural raw aggregates used in their construction. A drawback to UHPFRC is that it results in a significant rise in initial costs over normal and even high performance concretes, and it has very high binder contents, which in some cases is greater than 1100kg/m3. Therefore, the cost-efficiency and sustainability of this material must be improved. Currently, in Ireland UHPFRC is not being used to its full potential as the Irish concrete industry views the high cost of producing UHPFRC as an inhibitor and does not consider the whole life cycle benefits associated with UHPFRC. By clearly establishing and demonstrating the advantages of this material, sustainability in the Irish construction industry can be greatly enhanced as demonstrated in studies in other countries.
The research reported here considers the evaluation of two types of UHPFRC’s, one using a coarse sand and one using a fine sand, that were developed for the Irish construction industry to determine if they could be readily adapted and replicated in other countries. This research focuses on adapting the Irish mixes for the Canadian market. In doing this it was required to use aggregates that are easily accessible and interchangeable between Ireland and Canada. Constituent materials that were too expensive or required a large volume of materials to be imported to either country, and as a result increase the costs and environmental footprint of UHPFRC, were not considered in the mix design for each country. The mixes were optimised to reduce binder content by using a particle packing model.
Recommended Citation
Wilson, William and O'Flaherty, Tomas, "Development and Localisation of Ultra High Performance Concrete using a Particle Packing Model" (2020). Civil Engineering Research in Ireland 2020. 4.
https://sword.cit.ie/ceri/2020/5/4
Included in
Civil Engineering Commons, Construction Engineering and Management Commons, Environmental Engineering Commons, Geotechnical Engineering Commons, Hydraulic Engineering Commons, Structural Engineering Commons, Transportation Engineering Commons
Development and Localisation of Ultra High Performance Concrete using a Particle Packing Model
Cork Institute of Technology, Cork, Ireland
Ultra-high performance fibre reinforced concrete (UHPFRC) is used worldwide to improve the structural performance of infrastructure such as bridges, extend their working life and reduce environmental impact. As a result thinner structures are constructed leading to reductions in the structure’s self-weight and the volume of concrete and natural raw aggregates used in their construction. A drawback to UHPFRC is that it results in a significant rise in initial costs over normal and even high performance concretes, and it has very high binder contents, which in some cases is greater than 1100kg/m3. Therefore, the cost-efficiency and sustainability of this material must be improved. Currently, in Ireland UHPFRC is not being used to its full potential as the Irish concrete industry views the high cost of producing UHPFRC as an inhibitor and does not consider the whole life cycle benefits associated with UHPFRC. By clearly establishing and demonstrating the advantages of this material, sustainability in the Irish construction industry can be greatly enhanced as demonstrated in studies in other countries.
The research reported here considers the evaluation of two types of UHPFRC’s, one using a coarse sand and one using a fine sand, that were developed for the Irish construction industry to determine if they could be readily adapted and replicated in other countries. This research focuses on adapting the Irish mixes for the Canadian market. In doing this it was required to use aggregates that are easily accessible and interchangeable between Ireland and Canada. Constituent materials that were too expensive or required a large volume of materials to be imported to either country, and as a result increase the costs and environmental footprint of UHPFRC, were not considered in the mix design for each country. The mixes were optimised to reduce binder content by using a particle packing model.
https://sword.cit.ie/ceri/2020/5/4
