scholarly journals Flexural responses of hybrid steel–polyethylene fiber reinforced cement composites containing high volume fly ash

2007 ◽  
Vol 21 (5) ◽  
pp. 1088-1097 ◽  
Author(s):  
Shaikh Faiz Uddin Ahmed ◽  
Mohamed Maalej ◽  
P. Paramasivam
Keyword(s):  
Fly Ash ◽  
High Volume ◽  
Cement Composites ◽  
Fiber Reinforced ◽  
High Volume Fly Ash ◽  
Polyethylene Fiber ◽  
Reinforced Cement

Micro-fiber reinforced cement composites. II. Flexural response and fracture studies

1995 ◽  
Vol 22 (4) ◽  
pp. 668-682
Author(s):  
N. Banthia ◽  
J. Sheng
Keyword(s):  
Crack Opening ◽  
Fiber Reinforcement ◽  
High Volume ◽  
Flexural Behavior ◽  
Cement Composites ◽  
Fiber Reinforced ◽  
Host Matrix ◽  
Flexural Response ◽  
Reinforced Cement ◽  
Resistance Curves

In Part I of this paper, stress–strain curves for micro-fiber reinforced cement-based composites containing high volume fractions of carbon, steel, and polypropylene fibers were obtained. Considerable strengthening, toughening, and stiffening of the host matrix due to micro-fiber reinforcement under both static and impact conditions were reported. In this paper, composites are characterized under an applied flexural load. Both notched and unnotched specimens were tested in four-point flexure; significant improvements in the flexural behavior due to fiber reinforcement were noted. Notched specimens were tested to study the growth of cracks in these composites and to develop a valid fracture criterion. With this objective, crack growth resistance curves and crack opening resistance curves in terms of the stress intensity factor were constructed. The paper recognizes the potential of these composites in various applications and stresses the need for further research. Key words: Portland cement-based materials, fiber reinforcement, fracture toughness, R-curves.

FLY ASH AND BAGASSE FIBER INFLUENCES ON MECHANICAL PROPERTIES OF GREEN HYBRID FIBER-REINFORCED CEMENTITIOUS COMPOSITES

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
He Tian ◽  
Y. X. Zhang
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
High Volume ◽  
Fiber Content ◽  
Modulus Of Rupture ◽  
Fiber Reinforced ◽  
Cement Ratio ◽  
High Volume Fly Ash ◽  
Bagasse Fiber

In this paper, a new green fiber-reinforced cementitious composite containing high volume fly ash and hybrid steel and bagasse fibers is developed. Eco-friendly bagasse fibers from industrial waste and steel fibers are used to improve the mechanical behavior of the new composite, and high-volume fly ash is used to decrease the usage of cement in order to be more environmentally friendly. The influence of the fiber content and fly ash/cement ratio on the mechanical properties of the composite is investigated through the study of the mechanical properties of the new composite, such as compressive strength, modulus of elasticity, and modulus of rupture. It is found that compressive strength, Young's modulus of the composite, decreases with the increase of the fly ash/cement ratio and bagasse fiber content. However, the modulus of rupture of the composite increases firstly with bagasse fiber content, and decreases when bagasse fiber content reaches 3% by volume.

EFFECT OF RECYCLED MATERIALS ON THE TENSILE BEHAVIOR OF STEEL FIBER-REINFORCED CEMENT COMPOSITE

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Sun-Woo Kim ◽  
Wan-Shin Park ◽  
Young-Il Jang ◽  
Yi-Hyun Nam ◽  
Sun-Woong Kim ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Fly Ash ◽  
Steel Fiber ◽  
Cement Composite ◽  
Fine Aggregate ◽  
Cement Composites ◽  
Fiber Reinforced ◽  
Direct Tension ◽  
Recycled Materials ◽  
Reinforced Cement

Conventional cement composite is generally produced with ordinary Portland cement (OPC) as a binder. However, during manufacturing the cement composite, large amount of carbon dioxide (CO2) are emitted. Therefore, fly ash is proposed to be replaced to OPC in order to reduce CO2 emission of cement composites. For reinforcing fibers, micro steel fibers were used. For investigating mechanical properties of steel fiber-reinforced cement composites (SFRCCs), direct tension tests were conducted. The test results showed that fly ash improves tensile strength and ductility of SFRCCs. However, tensile strength of the SFRCC decreased as replacement ratio of recycled fine aggregate increased. The use of recycled materials in FRCC helps to save natural resources and promote sustainability in civil engineering materials.

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