A COMPARATIVE STUDY OF JUTE FIBER REINFORCED CONCRETE WITH PLAIN CEMENT CONCRETE

Using natural (Jute) fiber in concrete as a reinforcing material can not only augment the concrete strength but also restrict the use of synthetic fiber which is environmentally detrimental. To achieve this goal, this study evaluated compressive strength, tensile strength and plastic shrinkage of concrete incorporating ‘Natural (Jute)’ fiber of different length (15 mm and 25 mm) with various mix proportions of 0.10%, 0.2%, 0.3% and 0.4% respectively by volume of concrete. Concrete is vulnerable to grow shrinkage cracks because of high evaporation rate in dry and windy conditions. Incorporating of fibers could abate development of this crack. The large length (25 mm) and higher content ( 0.3%) of reinforcing materials (jute fiber) result to the lowering of mechanical properties of JFRC compare to plain concrete. But in the incorporation of short (15 mm) and low fiber content ( 0.3%), enhances the mechanical properties of the same JFRC. Inclusion of 0.3% (15 mm length) fiber gave maximum enhancement of both concrete compressive and tensile strength by 12.4% and 58% respectively compared to the non-fiber reinforced concrete. A drastic suppression of crack occurrence and area of crack between non-fiber reinforced concrete and fiber reinforced concretes was attained. Experimental results of incorporating 0.1–0.4% fiber with 15 mm length in concrete revealed that plastic shrinkage cracks were decreased by 75–99% in contrast to non-fiber reinforced concrete. Therefore, it is concluded that the incorporation of jute fiber in making FRC composite would be one of the favorable methods to enhance the performance of concrete.

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Strength and Durability of Kenaf Fiber Reinforced Concrete for Marine Structures

Universiti Malaysia Terengganu Journal of Undergraduate Research ◽

10.46754/umtjur.v1i1.57 ◽

2019 ◽

Vol 1 (1) ◽

pp. 113-118

Author(s):

Nur Fikriah Hashim ◽

Nuraqilah Mohd Zainal ◽

Nurain Jamil ◽

Nurul Nasuha Mohd Nor ◽

Suriani Mat Jusoh

Keyword(s):

Compressive Strength ◽

Reinforced Concrete ◽

Fiber Reinforced Concrete ◽

Cement Matrix ◽

Control Specimen ◽

Fiber Reinforced ◽

Cement Concrete ◽

Marine Structures ◽

Kenaf Fiber ◽

Manufacturing Defects

Nowadays, Kenaf fiber is sustainably useful in marine structures and has become one of the materials that may be high in demand as it is light, biodegradable and environmental friendly. This study investigates the effect of fiber percentage on compressive strength of fiber reinforced concrete (FRC) and the relationship between compressive strength and time of FRC immersion in seawater. FRC concrete cubes were prepared using four different percentage of fiber (0%, 1.5%, 3.0% and 4.5%). These FRC were immersed in seawater for 7, 14 and 21 days for three consecutive weeks. Based on the experiment, it was found that there was improvement in compressive strength of FRC when compared to plain cement concrete. The results showed that 3.0% of KF to cement matrix concrete determined the highest compressive strength of 205.43 Pa while 0% of KF fiber to cement concrete matrix (control specimen) showed the lowest compressive strength of 158.28 Pa. Also the addition of Kenaf fiber to cement concrete decreased the seawater absorption more than concrete with absolutely 0% of KF fiber to cement concrete (control specimen). In conclusion, the results did show significant improvement and a consistent trend on strength with the addition of FRC. This study also revealed that the percentage of water absorption was on the increase for 0, 7 and 14 days and become constant after day 21. This is due to manufacturing defects that occurred which block the water from entering the material and making the material absorb less water.

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Soft computing approaches for comparative prediction of the mechanical properties of jute fiber reinforced concrete

Advances in Engineering Software ◽

10.1016/j.advengsoft.2020.102887 ◽

2020 ◽

Vol 149 ◽

pp. 102887

Author(s):

N. Sultana ◽

S.M. Zakir Hossain ◽

Md Shah Alam ◽

M.S. Islam ◽

Mahmoud Ahmed Al Abtah

Keyword(s):

Mechanical Properties ◽

Reinforced Concrete ◽

Soft Computing ◽

Fiber Reinforced Concrete ◽

Jute Fiber ◽

Fiber Reinforced

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Research on Mechanical Performance of Sisal Fiber Reinforced Concrete and its Mechanism

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.168-170.925 ◽

2010 ◽

Vol 168-170 ◽

pp. 925-930 ◽

Cited By ~ 1

Author(s):

Hui Ming Bao ◽

Shang Li

Keyword(s):

Mechanical Properties ◽

Reinforced Concrete ◽

Failure Mechanism ◽

Fracture Process ◽

Mechanical Performance ◽

Fiber Reinforced Concrete ◽

Sisal Fiber ◽

Fiber Reinforced ◽

Cement Concrete ◽

Bonding Property

According to experiments by comparing with normal cement concrete and other fiber reinforced concrete, they analyze the mechanical properties and features of sisal fiber reinforced concrete. Besides, they observe the fracture process of different ages and contents of sisal fiber reinforced concrete and analyze the bonding property, toughening effect and failure mechanism. The results show that sisal fiber reinforced concrete is superior to normal cement concrete on mechanical properties, and has a feature of multi-cracking, while compared with other fiber reinforced concrete, it is more economical.

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