Combined impacts of polypropylene fibres on workability, strength and permeability of SCC

The workability, strength and permeability of self-consolidating concrete (SCC), reinforced with polypropylene monofilament fibre, collated fibrillated polypropylene network fibre and a hybrid of these two, are investigated. Combined impacts of polypropylene fibres on SCC are then analysed using the theory of Bingham plastic flow, the principle of fracture mechanics and the composition of microstructure based on scanning electron microscopy. Results show that: (a) in the case of identical fibre volume fraction, the workability of fresh SCC reinforced with polypropylene monofilament fibre is better than that with fibrillated polypropylene network fibre; (b) when the fibre volume fraction is less than 0·10%, strength properties and water impermeability of hardened SCC increase with the fibre addition, and the charge passed increases slightly, but when the fibre volume fraction is higher than 0·15%, the charge increases dramatically; (c) SCC with polypropylene monofilament fibre has better impermeability, bu...

[1]  Bhushan Lal Karihaloo,et al.  Mix proportioning of self-compacting normal and high-strength concretes , 2013 .

[2]  Shami Nejadi,et al.  Mechanical characteristics of self-compacting concrete with and without fibres , 2013 .

[3]  Moncef L. Nehdi,et al.  Resistance of Self-consolidating Concrete to Sulfuric Acid Attack with Consecutive pH Reduction , 2007 .

[4]  Farhad Aslani,et al.  Effects of specimen size and shape on compressive and tensile strengths of self-compacting concrete with or without fibres , 2013 .

[5]  Xiaoming Wu,et al.  The effect of sand ration on the properties of self-compacting concrete , 2013 .

[6]  K. Sideris,et al.  Residual mechanical characteristics and spalling resistance of fiber reinforced self-compacting concretes exposed to elevated temperatures , 2013 .

[7]  Pasla Dinakar,et al.  Design of self-compacting concrete with fly ash , 2012 .

[8]  K. Behfarnia,et al.  The effects of pozzolanic binders and polypropylene fibers on durability of SCC to magnesium sulfate attack , 2013 .

[9]  Joo-Ha Lee,et al.  Fire resistance of hybrid fibre-reinforced, ultra-high-strength concrete columns with compressive strength from 120 to 200 MPa , 2012 .

[10]  F de Larrard,et al.  Modified Slump Test to Measure Rheological Parameters of Fresh Concrete , 1998 .

[11]  Mohammad Shekarchi,et al.  Relationship between workability and mechanical properties of fibre-reinforced self-consolidating mortar , 2013 .

[12]  W. Brostow,et al.  Mechanical properties of self-compacting concrete reinforced with polypropylene fibres , 2011 .

[13]  Dinesh L. Shah,et al.  Evaluation of shear strength in self-compacting fibre-reinforced concrete and conventional concrete deep beams , 2012 .

[14]  Abhijit Chatterjee,et al.  A comparison of hardened properties of fly-ash-based self-compacting concrete and normally compacted concrete under different curing conditions , 2012 .

[15]  M. M. Reda Taha,et al.  Flow characteristics and acceptance criteria of fiber-reinforced self-compacted concrete (FR-SCC) , 2012 .

[16]  Amir M. Halabian,et al.  Viscosity evaluation of SCC based on flow simulation in the L-box test , 2013 .

[17]  T. Tracz,et al.  The Impact of the Amount and Length of Fibrillated Polypropylene Fibres on the Properties of HPC Exposed to High Temperature / Wpływ Ilosci I Długosci Fibrylowanych Włókien Polipropylenowych Na Własciwosci Hpc Poddanego Działaniu Wysokiej Temperatury , 2010 .

[18]  Harun Tanyildizi,et al.  Estimation of compressive strength of self compacting concrete containing polypropylene fiber and mineral additives exposed to high temperature using artificial neural network , 2012 .

[19]  D. Hannant.  Durability of polypropylene fibers in portland cement-based composites: eighteen years of data , 1998 .

[20]  S. H. Mirmoradi,et al.  The effect of polypropylene fibers on the properties of fresh and hardened lightweight self-compacting concrete , 2011 .