A review of materials science-based models for mixture design and permeability prediction of pervious concretes. (2015)

• Record Type: Journal Article
• Authors: Sumanasooriya, Milani S.; Deo, Omkar; Rehder, Benjamin; Neithalath, Narayanan
• Is Part Of: International journal of materials and structural integrity. Volume 9:Number 1/2/3(2015)
• Page Start: 108
• Page End: 130
• Publication Date: 2015
• Subjects: pervious concrete -- material design -- pore structure -- computational modelling -- materials science -- mixture design -- permeability prediction -- particle packing -- compaction index -- compressible packing models -- granular particles -- Monte Carlo simulation; Materials -- Testing -- Periodicals; Strength of materials -- Periodicals; Structural dynamics -- Periodicals; Structural analysis (Engineering) -- Periodicals; 620.112
• Languages: English
• ISSNs: 1745-0055

Abstract

Pervious concrete is one of the relatively recent additions to the class of sustainable multifunctional cement-based materials. The material design of pervious concretes relies on trial-and-error-based approaches since the larger porosity and pore size requirements make a minimal porosity-based approach adopted for conventional concretes non-viable. This paper reviews a particle packing-based methodology for pervious concrete material design using a compaction index from compressible packing model of granular particles as the defining parameter. The pore structure features of the thus designed pervious concretes are characterised using well-accepted stereological and morphological methods. A three-dimensional reconstruction procedure, from two-dimensional starting images, used to develop material structures in which performance (permeability) prediction algorithms can be implemented is also reviewed. Permeability of these model structures have been predicted using a Stokes' solver and a Lattice Boltzmann scheme, and compared to the experimentally determined permeability. A stochastic Monte-Carlo simulation is used to quantify the influence of pore structure features on the permeability of pervious concretes.