scholarly journals EFFECT OF FIBER LENGTH VARIATIONS ON PROPERTIES OF COIR FIBER REINFORCED CEMENT-ALBUMEN COMPOSITE (CFRCC)

2011 ◽  
Vol 12 (1) ◽  
pp. 63-76 ◽  
Author(s):  
Zuraida Ahmad ◽  
Sopyan Iis ◽  
Zahurin Halim ◽  
Norshahida Sarifuddin
Keyword(s):  
Moisture Content ◽  
Water Absorption ◽  
Fiber Length ◽  
Partial Replacement ◽  
Experimental Investigations ◽  
Coir Fiber ◽  
Fiber Reinforced ◽  
Coir Fibers ◽  
Reinforced Cement ◽  
Cement Mixture

This paper evaluated the effect of fiber length on the mechanical and physical performance of coir fiber reinforced cement-albumen composites (CFRCC). Albumen protein was added as a binder and the coir fibers with the lengths of 0, 2.5, 5, 10 and 20 mm was used as partial replacement of the cement mixture. Flexural and compressive strength, bulk density, moisture content and water absorption were investigated. The experimental investigations reveal that increasing in length of fiber augment the flexural strength. Incorporation of long fiber into the cement paste however, decreased the workability and thus introduced voids which results in low density. In fact, the water absorption and moisture content were also increased.

Effect of Chitosan Particle Addition on the Tensile and Flexural Strength of Coir Fiber Reinforced Polyester Composites

2015 ◽  
Vol 813-814 ◽  
pp. 30-33 ◽  
Author(s):  
S. Rajamuneeswaran ◽  
S. Jayabal ◽  
S. Kalyana Sundaram ◽  
N.S. Balaji ◽  
P. Ramkumar
Keyword(s):  
Flexural Strength ◽  
Fiber Length ◽  
Filler Content ◽  
Fiber Content ◽  
Coir Fiber ◽  
Fiber Reinforced ◽  
Chitosan Particle ◽  
Coir Fibers ◽  
Polyester Matrix ◽  
Polyester Composites

The influence of chitosan impregnation on the tensile and flexural strength of the short coir fiber reinforced polyester composites were studied in this investigation. The chitosan fillers were dispersed in polyester matrix, and laminates were prepared by reinforcing coir fibers in chitosan –polyester matrix. The composites were fabricated by varying filler content, fiber content and fiber length in three levels and their influence on tensile and flexural strength of the composites were studied. The composites with fiber length 30 mm, filler content 4% and fiber content 25% showed better values tensile (23 MPa) and at the same time the flexural strength (28MPa) of the composite was observed to be better with fiber length 30 mm, filler content 4 % and fiber content 25%.

Study on the Properties of Oil Palm Trunk Fiber (OPTF) in Cement Composite

2013 ◽  
Vol 421 ◽  
pp. 395-400 ◽  
Author(s):  
Alida Abdullah ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Hussin Kamarudin ◽  
Che Mohd Ruzaidi Ghazali ◽  
Mohd Arif Anuar Mohd Salleh ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Moisture Content ◽  
Water Absorption ◽  
Oil Palm ◽  
Cement Composite ◽  
Fiber Content ◽  
Percentage Increase ◽  
Fiber Reinforced ◽  
Oil Palm Trunk ◽  
Reinforced Cement

Properties of oil palm trunk fiber reinforced cement composite were investigated in this study. Oil palm trunk fiber was used to improve the properties of cement composite. It was found that increasing in oil palm trunk fiber content up to certain percentage increase the compressive strength and decrease the density of cement composite. Besides, the study also found that additional of excessive of oil palm trunk fiber in cement composite decrease the compressive strength and continues to increase the water absorption and moisture content hence decrease the density. From this study, it was found that 2 wt. % of fiber content was the optimum fiber content to give the highest compressive strength of 38.61 MPa.

scholarly journals Crack Resistance and Mechanical Properties of Polyvinyl Alcohol Fiber-Reinforced Cement-Stabilized Macadam Base

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Yi Zhao ◽  
Xuan Yang ◽  
Qingyu Zhang ◽  
Naixing Liang ◽  
Yangkai Xiang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyvinyl Alcohol ◽  
Crack Resistance ◽  
Fiber Length ◽  
Cement Content ◽  
Strength Test ◽  
Fiber Reinforced ◽  
Polyvinyl Alcohol Fiber ◽  
Reinforced Cement ◽  
Shrinkage Property

A series of tests were carried out to evaluate crack resistance and mechanical properties of polyvinyl alcohol fiber-reinforced cement-stabilized macadam, which is widely used as pavement base or subbase composite material. Three series of cement-stabilized macadam mixtures with cement content of 3.2%, 3.6%, and 4.0% were prepared by incorporating four various contents (0, 0.6, 0.9, and 1.2 kg/m3) and lengths (12, 18, 24, and 30 mm) of polyvinyl alcohol fiber. The optimum polyvinyl alcohol fiber content, fiber length, and cement content were determined based on the mechanical properties of cement-stabilized macadam mixtures. Then, unconfined compressive strength test, compressive resilience modulus test, splitting strength test, flexural tensile strength test, drying shrinkage test, and temperature shrinkage test were carried out in this study. The results show that polyvinyl alcohol fiber-reinforced cement-stabilized prepared by optimum proportions (cement 3.6%, fiber content 0.9 kg/m3, and fiber length 24 mm) has good crack resistance. The incorporation of polyvinyl alcohol fiber can effectively improve compressive strength and splitting strength, while its effect on CRM of cement-stabilized macadam is not remarkable. The anti-dry-shrinkage property and anti-temperature-shrinkage property of the specimens are also drastically improved due to the reinforcement effect of polyvinyl alcohol fiber. Moreover, the crack resistance index is proposed to evaluate the crack resistance of materials. The crack resistance of PVA fiber-reinforced cement-stabilized macadam prepared by optimum proportions is improved by 44.4%. Consequently, the mechanical properties and crack resistance of cement-stabilized macadam are obviously improved by adding polyvinyl alcohol fiber.

scholarly journals Physical and Mechanical Performance of Coir Fiber-Reinforced Rendering Mortars

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 823
Author(s):  
Cinthia Maia Pederneiras ◽  
Rosário Veiga ◽  
Jorge de Brito
Keyword(s):  
Modulus Of Elasticity ◽  
Large Scale ◽  
Mechanical Performance ◽  
Volume Fraction ◽  
Physical And Mechanical Properties ◽  
Coir Fiber ◽  
Fiber Reinforced ◽  
Fiber Volume ◽  
Coir Fibers ◽  
High Elongation

Coir fiber is a by-product waste generated in large scale. Considering that most of these wastes do not have a proper disposal, several applications to coir fibers in engineering have been investigated in order to provide a suitable use, since coir fibers have interesting properties, namely high tensile strength, high elongation at break, low modulus of elasticity, and high abrasion resistance. Currently, coir fiber is widely used in concrete, roofing, boards and panels. Nonetheless, only a few studies are focused on the incorporation of coir fibers in rendering mortars. This work investigates the feasibility to incorporate coir fibers in rendering mortars with two different binders. A cement CEM II/B-L 32.5 N was used at 1:4 volumetric cement to aggregate ratio. Cement and air-lime CL80-S were used at a volumetric ratio of 1:1:6, with coir fibers were produced with 1.5 cm and 3.0 cm long fibers and added at 10% and 20% by total mortar volume. Physical and mechanical properties of the coir fiber-reinforced mortars were discussed. The addition of coir fibers reduced the workability of the mortars, requiring more water that affected the hardened properties of the mortars. The modulus of elasticity and the compressive strength of the mortars with coir fibers decreased with increase in fiber volume fraction and length. Coir fiber’s incorporation improved the flexural strength and the fracture toughness of the mortars. The results emphasize that the cement-air-lime based mortars presented a better post-peak behavior than that of the cementitious mortars. These results indicate that the use of coir fibers in rendering mortars presents a potential technical and sustainable feasibility for reinforcement of cement and cement-air-lime mortars.

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