Packing theory for natural and crushed aggregate to obtain the best mix of aggregate: research and development
2012 (English)Conference paper, Meeting abstract (Refereed)
Concrete performance is strongly affected by the particle packing degree since it determines the distribution of the cementitious component and the interaction of mineral particles. By using packing theory designers will be able to select optimal aggregate materials for preparing concrete with low cement content, which is beneficial from the point of cost. Optimum particle packing implies minimizing porosity and thereby reducing the amount of cement paste needed to fill the voids between the aggregate particles, taking also the rheology of the concrete into consideration. For reaching good fluidity superplasticizers are required. The results from pilot tests at Luleå University of Technology (LTU) show various forms of the proposed theoretical models, and the empirical approach taken in the study seems to provide a safer basis for developing new, improved packing models.
Place, publisher, year, edition, pages
2012. Vol. 67, 819-825 p.
Research subject Structural Engineering; Soil Mechanics
IdentifiersURN: urn:nbn:se:ltu:diva-35214Local ID: 9a7896a3-8e00-4a47-b3a7-970a629f837bOAI: oai:DiVA.org:ltu-35214DiVA: diva2:1008466
International Conference on Civil and Construction Engineering : 11/07/2012 - 12/07/2012
Validerad; 2012; 20121010 (andbra)2016-09-302016-09-30Bibliographically approved