Packing theory for natural and crushed aggregate to obtain the best mix of aggregate: research and development

Packing theory for natural and crushed aggregate to obtain the best mix of aggregate : research and development

Emborg, Mats (author): Luleå tekniska universitet,Byggkonstruktion och -produktion

(creator_code:org_t)

2012
2012
English.
In: Proceedings of World Academy of Science, Engineering and Technology. - 2010-376X .- 2070-3740. ; 6:7, s. 479-485

Related links:: https://ltu.diva-por... (primary) (Raw object); show more...; https://urn.kb.se/re...; https://doi.org/10.5...; show less...

Abstract Subject headings

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.

By the author/editor: Hatem, Mohammed; Emborg, Mats; Pusch, Roland; Knutsson, Sven

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Infrastructure E ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Geotechnical Eng ...

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