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Strategy for predicting transport-based durability properties of concrete based on DEM approach



Author(s): K. Li, L.B.N. Le, P. Stroeven and M. Stroeven
Paper category: Workshop
Book title: RILEM International workshop on performance-based specification and control of concrete durability
Editor(s): D. Bjegović, H. Beushausen, M. Serdar
ISBN: 978-2-35158-135-3
e-ISBN: 978-2-35158-136-0
Pages: 443 - 450
Total Pages: 8
Language: English


Abstract: 
This paper discusses two presently explored porosimetry strategies applied to simulated cementitious material structures. The first is the more traditional concurrent algorithm-based dynamic DEM simulation and porosimetry methodology on micro-level. This involves DEM simulation of the packed binder particles in the fresh state and the succeeding hydration simulation by vector approach based methodology. Finally, the pore network structure is explored by robotics-based DRaMuTS system, followed by assessment of pore geometry by star volume method. The second strategy involves nano-scale simulation of C-S-H globules in the pore space between hydrating binder particles reducing the size of capillary pores. This replaces only the last stage of the aforementioned vector approach in hydration simulation.


Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00