Research Articles | Challenge Journal of Concrete Research Letters

Properties of High Strength Flowable Mortar Reinforced With Different Fibers

Eethar T. Dawood, Mahyuddin Ramli

Abstract


An experimental study was conducted on the high-strength flowable mortar (HSFM) reinforced by the different percentages of palm Fiber (0, 0.5& 1%), steel fiber (0, 0.5, 1.0& 2%), and the hybridization of these two fibers with 2% volumetric fractions.  Different tests have been done to determine some aspects namely the density, compressive strength, splitting tensile strength, static modulus of elasticity, flexural strength, toughness and ultrasonic pulse velocity.  The results show that the use of hybridization of steel fiber with palm fiber gives an unambiguous improvement in these properties and thus the optimum percentages for these two fibers have been taken into consideration. The use of low volume fraction of palm fiber in hybrid fiber mixes was found to be a promising concept in HSFM mixes

Keywords


steel fiber; palm fiber; high strength mortar; toughness; ultrasonic pulse velocity

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References


F. Burak , S. Turkel & Y. Altuntas "Effects of steel fiber reinforcement on surface wear resistance on self compacting repair mortar", Cem. & Conc. Comp.; 29, 2007, pp.391-396.

L. Gang ,K. Wang & T.J. Rudolphi "Modeling reheological behavior of highly flowable mortar using concepts of particle and fluid mechanics", Cem. & Conc. Comp.; 30, 2008, pp.1-12.

H.Okamura , & M.Ouchi "Self compacting concrete", J. Adv. Concr. Technolgy, 1(1); 2003, pp.1-15. .

K.H. Khayat , R. Morin "Performance of self-consolidating concrete used to Repair parapet wall in Montreal", Proceedings of the first north American conference on the design and use of self-consolidating concrete, 2002, pp. 475-481.

K.Bilba ,M.A. Arsene & A. Ouensanga " Sugar cane bagasse fibre reinforced cement composites. Part I. Influence of the botanical components of bagasse on the setting of bagasse “cement composite. Cement& Concrete Composites 2003; 25:91–6.

G. Ramakrishna & T.Sundararajan "Impact Strength of a few natural fiber reinforced cement mortar slabs:a comparative study” Cement and concrete composite, 2005; 27, pp. 547-53

R.D. Filho, K. Scrivener , G.L.England, K. Ghavami .”Durability of alkali-sensitive sisal and coconut fibres in cement mortar composites “Cement & Concrete Composites 2000; 22(6):127–43.

A. Kriker, G. Debicki, A. Bali, M.M. Khenfer & M.Chabannet “ Mechanical properties ofdate palm fibers and concrete reinforced with date palm fibers in hot-dry climate”, Cement & Concrete Composites 2005; 27,pp.554-64.

A. Bentur & S. Mindess "Fiber Reinforced Cementitious Composites ", Elsevier Applied Science, London, UK, 1990.

C. X. Qian & P. Stroeven " Development of hybrid polypropylene-steel fiber reinforced concrete", Cement & Concrete Research, 30, 2000, pp. 63-69.

The American Concrete Institute (ACI 211.1-91) Standard P "Standard Practice for selecting Proportions for Normal,Heavyweight, and Mass Concrete ", ACI Manual of Concrete Practice 2000, Part 1: Materials and General Properties of Concrete.

ASTM C230 "Standard Specification for Flow Table for Use in Tests of Hydraulic Cement ".Annual book of ASTM standard; 2002.PA, www.astm.org.

ASTM C642. “Standard Test Method for Density, Absorption, and Voids in Hardened Concrete”. Annual book of ASTM standard; 2002.

ASTM C109 "Standard Test Method for Compressive Strength of Hydraulic Cement Mortars Using 50mm Cube Specimens ". Annual book of ASTM standard; 2002.

ASTM C496 "Standard Test Method for Splitting for Splitting Tensile Strength of Cylindrical Concrete Specimens ". Annual book of ASTM standard; 2002.

ASTM C469 "Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression ".Annual book of ASTM standard; 2002.

ASTM C348 "Standard Test Method for Flexural Strength of Hydraulic-Cement Mortars "Annual book of ASTM standard; 2002.

ASTM C1018 "Standard Test Method for Flexural Toughness and First-Crack Strength of Fibre-Reinforced Concrete” Annual book of ASTM standard; 2002.

BRITISH STANDARD, BS EN 12504-4. Testing hardened Concrete (2004). Determination of ultrasonic pulse velocity. BSI, London.

E. T. Dawood & M. Ramli. “Development of high strength flowable mortar with hybrid fiber” Construction and Building Materials Journal 2010, 24 (6), 2010, 1043–1050.

G. Steffen & C.W. Joost "Parameter study on the influence of steel fibers and coarse aggregate content on the fresh properties of self compacting concrete” Cement & Concrete Research; 31, 2001, pp.1793-1798. .

B. Chen & J. Liu “Residual strength of hybrid-fiber-reinforced high-strength concrete after exposure to high temperatures” Cement & Concrete Research; 34, 2004. pp.1065-69.

I. Markovic , J.C. Walraven & M. J. Van "Self compacting hybrid fiber concrete-mix design, workability and mechanical properties", Proceedings of third international symposium on self-compacting concrete, 2003, pp.763-775.

P.N. Balaguru & S.P.Shah "Fiber Reinforced Cement Composites", McGraw-Hill Inc., 1992, New York.

E. T. Dawood & M. Ramli. “High strength characteristics of cement mortar reinforced with hybrid fibres” Construction & Building Materials Journal, 2011, 25(5), 2240-47

P.K. Mehta & P.J.M. Monterio "Concrete, structures, properties and materials" 2nd ed. New Jersey, USA: Prentice-Hall: 1993.pp. 447.

A. Mor "Steel-concrete bond in high strength-lightweight concrete" ACI Materials Journal; 89(1):pp.76-82.

O.Kayali, M. N. Haque & B. Zhu "Some characteristics of high strength fiber reinforced lightweight aggregate concrete" Cement &Concrete Composites, 25, 2003, pp.207–13.

N. Banthia & M. Sappakittipakorn "Toughness enhancement in steel fiber reinforced concrete through fiber hybridization", Cem. & Conc. Research; 37, 2007, pp.1366-1372.

M.C. Nataraja , N. Dhang & A.P. Gupta "Stress-strain curves for steel fiber reinforced concrete under compression" , Cement & Concrete Composite; 21,1999, pp. 383-390.

D.J. Hannant “Fiber cement and fiber concrete” Chichester 1987, UK: Wiley.

A. Sivakumar & M. Santhanam "Mechanical properties of high strength concrete reinforced with metallic and non-metallic fibers". Cement &Concrete Composites,2 9, 2007, pp.603–08.


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