Methods to optimize aggregate composition: evaluation by concrete experiments
2014 (Swedish)Conference paper, Meeting abstract (Refereed)
A proper mix design optimizes the environmental impact and the cost effectiveness of a concrete. A minimum cement paste content is desirable without deteriorate the concrete properties. Thus, cement paste content is dependent on the packing properties of the aggregates. Three different methods to optimize the aggregate composition have been evaluated by concrete tests: one curve fitting method and two particle packing methods. Crushed and natural aggregates have been tested at two different w/c ratios. The results show that the methods suggest very different aggregate compositions and they can´t handle fine crushed aggregates that consume a lot of mixing water.
Place, publisher, year, edition, pages
2014. Vol. 50, 201-204 p.
Research subject Structural Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-39257Local ID: debeb8b3-aea2-4beb-9614-e6ae4a88fd6fOAI: oai:DiVA.org:ltu-39257DiVA: diva2:1012767
Nordic Concrete Research Symposia : 13/08/2014 - 15/08/2014
Godkänd; 2014; 20140829 (mem)2016-10-032016-10-03Bibliographically approved