Effect of polypropylene fiber on fracture properties of high-performance concrete composites

Abstract

A parametric experimental study has been conducted to investigate the effect of polypropylene fiber on the workability and fracture properties of highperformance concrete (HPC) composites containing fly ash and silica fume, with the five fiber volume fractions (0.04 % , 0.06 % , 0.08 % , 0.1 % , and 0.12 % ) used. The results indicate that the addition of polypropylene fiber decreases the workability of the HPC composites containing fly ash and silica fume. With the increase in the fiber volume fraction, both of the slump and the slump flow decrease gradually. Furthermore, the addition of polypropylene fiber has greatly improved the fracture parameters of concrete composite containing 15 % fly ash and 6 % silica fume, such as fracture toughness, fracture energy, effective crack length, maximum midspan deflection, the critical crack opening displacement, and the maximum crack opening displacement of the three-point bending beam specimens. When the fiber volume fraction increases from 0 % to 0.12 % , the fracture parameters increase gradually. The variation rules of the fracture parameters indicate that the capability of the polypropylene fiber to resist the crack propagation of the concrete composite containing 15 % fly ash and 6 % silica fume is becoming stronger and stronger with the increase in fiber volume fraction with the fiber volume fraction not above 0.12 % .

Mechanical properties of self-compacting concrete with recycled bead wires

“…In recent years, increased work on the recycling of waste materials (Çimen, Saltan, & Keskin, 2015;Erdogmus, 2014) (Centonze, Leone, & Aiello, 2012;Gabor, Agnes, & Sandor, 2018;Gesoğlu, Güneyisi, Khoshnaw, & İpek, 2014;Mohsen, Saeed, Abolfazl, & Mana, 2017;Son, Hajirasouliha, & Pilakoutas, 2011;Thomas & Gupta, 2016) has accelerated the process. From these waste materials, in particular, the contribution of the steel fibers, on which researchers have been working on over the last 20 years, to concrete has revealed that it significantly improves mechanical properties and impact strength of concrete (Afroughsabet, Biolzi, & Monteiro, 2018;Babayev, Gürbüz, & Anadut, 2017;Djelloul, Menadi, Wardeh, & Kenai, 2018;Kim, Kim, Ha, & Kim, 2007;Koksal, Gencel, Unal, & Durgun, 2012;Koksal, Sahin, Beycioglu, Gencel, & Brostow, 2012;Köksal, Yiğit, Yerlikaya, & Şahin, 2005;Koroglu & Ozdoner, 2016;Sengul, 2016;Wang, Wu., & Li, 2000;Yavuz, Güler, Korkut, & Türkmenoğlu, 2016;Zhang & Li, 2012). In the last decade, steel wires from waste tires obtained from economical, innovative, environment-friendly industrial recyclable waste tires have been the interest of researchers (Bdour & Al-Khalayleh, 2010;Bjegovic, Bariceviv, & Lakusic, 2012;Domski, Katzer, Zakrzewski, & Ponikiewski, 2017;Koroglu, 2016Koroglu, , 2018.…”

Behavior of composite self-compacting concrete (SCC) reinforced with steel wires from waste tires

“…Fiber Reinforced Concrete (FRC) behaves mechanically different from conventional concrete (Köroglu & Özdöner, 2016). FRC generally includes steel fiber , natural fibers (Bharath & Basavarajappa, 2016;Wei & Meyer, 2015), synthetic fibers (Amin, Foster, Gilbert, & Kaufmann, 2017;Macanovskis, Krasnikovs, Kononova, & Lukasenoks, 2017;Richardson & Ovington, 2017;Zhang & Li, 2012) and glass fibers (Tassew & Lubell, 2014). A Great number of experimental studies have been conducted (Köksal, Gencel, Unal, & Durgun Muhammed, 2012;Lee, Yi, & Oh, 2008;Li, Li, Shi, & Zhou, 2017;Liu, Lu, Wang, & Liang, 2017;Macanovskis et al, 2017;C.…”

“…A Great number of experimental studies have been conducted (Köksal, Gencel, Unal, & Durgun Muhammed, 2012;Lee, Yi, & Oh, 2008;Li, Li, Shi, & Zhou, 2017;Liu, Lu, Wang, & Liang, 2017;Macanovskis et al, 2017;C. S. Poon, Shui, & Lam, 2004;Tassew & Lubell, 2014;Varona, Baeza, Bru, & Ivorra, 2018;Zhang & Li, 2012) on the FRC including many parameters over the decades. However, using recycled materials in FRC have also been popular including steel wires extracted from waste tires.…”

Mechanical Properties of Steel Fiber-Reinforced Concrete by Vibratory Mixing Technology

“…Up to now, most research paid attention on the improvement effect of different types of fiber or optimum fiber content, but little literature paid attention on the difference of improvement effect by various stirring technologies. As a kind of new stirring technology, compared to traditional stirring technology, vibratory mixing technology could effectively improve the distribution of fibers in concrete, further increase the density of steel fiber concrete, and finally improve the mechanical properties of steel fiber-reinforced concrete [16][17][18][19][20]. But, at present, vibratory mixing technology has not been widely used in engineering, and research on its improvement of concrete mechanical properties is inadequate at home and abroad.…”