Ultra-high-ductile behavior of a polyethylene fiber-reinforced alkali-activated slag-based composite

Abstract This paper presents an experimental study of the meso-level composite properties of an ultra-high-ductile polyethylene-fiber-reinforced alkali-activated slag-based composite. Four mixtures with 1.75 vol% of polyethylene fibers were prepared with varying water-to-binder ratio. The viscosity of the matrix was controlled to ensure a uniform fiber dispersion. A series of experiments, including density, compression, and uniaxial tension tests, was performed to characterize the mechanical properties of the composite. The test results showed that the average tensile strength to compressive strength ratio of the composites was 19.8%, nearly double that of normal concrete, and the average crack width was 101 μm. It was also demonstrated that tensile strain capacity and tensile strength of up to 7.50% and 13.06 MPa, respectively, can be attained when using the proposed polyethylene-fiber-reinforced alkali-activated slag-based composites.

[1]  V. Li,et al.  Flexural/tensile-strength ratio in engineered cementitious composites , 1994 .

[2]  V. Li,et al.  Practical Design Criteria for Saturated Pseudo Strain Hardening Behavior in ECC , 2006 .

[3]  Holmer Savastano,et al.  Potential of alternative fibre cements as building materials for developing areas , 2003 .

[4]  Victor C. Li,et al.  Composite Properties of High-Strength, High-Ductility Concrete , 2013 .

[5]  Victor C. Li,et al.  A feasibility study of strain hardening fiber reinforced fly ash-based geopolymer composites , 2014 .

[6]  Faiz Shaikh,et al.  Strain Hardening Behavior of Engineered Geopolymer Composites: Effects of the Activator Combination , 2015 .

[7]  Hwai Chung Wu,et al.  Conditions for Pseudo Strain-Hardening in Fiber Reinforced Brittle Matrix Composites , 1992 .

[8]  Victor C. Li,et al.  Tailoring ECC for Special Attributes: A Review , 2012, International Journal of Concrete Structures and Materials.

[9]  Paulo J.M. Monteiro,et al.  The evolution of strength and crystalline phases for alkali-activated ground blast furnace slag and fly ash-based geopolymers , 2010 .

[10]  V. Li,et al.  TENSILE STRAIN-HARDENING BEHAVIOR OF POLYVINYL ALCOHOL ENGINEERED CEMENTITIOUS COMPOSITE (PVA-ECC) , 2001 .

[11]  V. Li,et al.  Microstructure variability and macroscopic composite properties of high performance fiber reinforced cementitious composites , 2006 .

[12]  土木学会,et al.  Recommendations for design and construction of High Performance Fiber Reinforced Cement Composites with Multiple Fine Cracks(HPFRCC) , 2008 .

[13]  Fernando Pacheco-Torgal,et al.  Alkali-activated binders: A review: Part 1. Historical background, terminology, reaction mechanisms and hydration products , 2008 .

[14]  P. L. Pratt,et al.  Alkali-activated slag cement and concrete: a review of properties and problems , 1995 .

[15]  Keun-Hyeok Yang,et al.  Properties of cementless mortars activated by sodium silicate , 2008 .

[16]  Ben Graybeal,et al.  Ultra-High Performance Concrete , 2011 .

[17]  V. Li.  On Engineered Cementitious Composites (ECC) , 2003 .

[18]  En-Hua Yang,et al.  Use of High Volumes of Fly Ash to Improve ECC Mechanical Properties and Material Greenness , 2007 .

[19]  Faiz Shaikh,et al.  Tensile Strain Hardening Behavior of PVA Fiber-Reinforced Engineered Geopolymer Composite , 2015 .

[20]  M. Schliwa,et al.  Rheology , 2008, Current Biology.

[21]  C. Thaumaturgo,et al.  Fracture toughness of geopolymeric concretes reinforced with basalt fibers , 2005 .

[22]  Safeer Abbas,et al.  Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges , 2016, International Journal of Concrete Structures and Materials.

[23]  Kyle A. Riding,et al.  Methods for Calculating Activation Energy for Portland Cement , 2007 .

[24]  V. Li,et al.  Strain hardening fiber reinforced alkali-activated mortar – A feasibility study , 2012 .

[25]  V. Li,et al.  Steady-state and multiple cracking of short random fiber composites , 1992 .

[26]  Benjamin A. Graybeal,et al.  Ultra-High Performance Concrete: A State-of-the-Art Report for the Bridge Community , 2013 .

[27]  Victor C. Li,et al.  Rheology, fiber dispersion, and robust properties of Engineered Cementitious Composites , 2013 .

[28]  V. M. Malhotra,et al.  Introduction: Sustainable Development and Concrete Technology , 2002 .

[29]  Ángel Palomo,et al.  Alkali-activated fly ashes: A cement for the future , 1999 .

[30]  C. Leung.  Design Criteria for Pseudoductile Fiber-Reinforced Composites , 1996 .

[31]  J. Sanjayan,et al.  Workability and mechanical properties of alkali activated slag concrete , 1999 .

[32]  Sang-Hyeok Gang,et al.  Report Card for America's Infrastructure , 2012 .