Effect of lye alkaline solution treatment on engineering properties of oil palm empty fruit bunches (EFB) fiber strengthen foamed concrete

Correlations Between Compressive, Flexural and Tensile Strengths of Foamed Concrete Strengthened with Oil Palm Biomass Wastes

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.f9271.038620 ◽

2020 ◽

Vol 8 (6) ◽

pp. 4910-4914

Keyword(s):

Construction Industry ◽

Oil Palm ◽

Polynomial Regression ◽

Volume Fraction ◽

Engineering Properties ◽

Coefficient Of Determination ◽

Oil Palm Biomass ◽

Foamed Concrete ◽

Resistance Performance ◽

Made In

Owing its superior features, such as low in density, excellent thermal properties and great fire resistance performance, foamed concrete is gaining acceptance in the construction industry. Nevertheless, foamed concrete is weak in tension. Foamed concrete reinforced with fibers has amplified due to its boosted properties after cracking of the cementitious matrix. Hence, fibers from spikelets and stalks from oil palm biomass wastes were used to scrutinize the correlations between compressive, flexural and tensile strengths of foamed concrete in this study. The fibers content was maintained to 0.45% of volume fraction for all mixes and the mixes were modified to different densities which were 600kg/m3 , 1200kg/m3 and 1800kg/m3 . Then, the compressive, flexural and tensile strengths of the foamed concrete were measured at 7, 28, 60 and 180 day. The result showed a general trend that the engineering properties of foamed concrete increased as its density increased and the desirable result could be achieved with the inclusion of stalks and spikelets in the foamed concrete. Finally, the empirical equations were established and coefficient of determination (R2 ) was obtained at different ages through the regression analysis. The comparison between the correlations of the engineering properties, made in terms of R2 of the polynomial regression, showed that all of the relations were obtained high value which is in range 0.96-0.99.

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INFLUENCE OF OIL PALM SPIKELETS FIBRE ON MECHANICAL PROPERTIES OF LIGHTWEIGHT FOAMED CONCRETE

Journal of Civil Engineering Science and Technology ◽

10.33736/jcest.3980.2021 ◽

2021 ◽

Vol 12 (2) ◽

pp. 160-167

Author(s):

Siti Shahirah Suhaili ◽

Nurshafikah Nadirah Alias ◽

Md Azree Othuman Mydin ◽

Hanizam Awang

Keyword(s):

Mechanical Properties ◽

Oil Palm ◽

Engineering Properties ◽

Sustainable Construction ◽

Additional Stress ◽

Plastic State ◽

Wide Range ◽

Foamed Concrete ◽

Applied Forces ◽

Potential Use

As issues related to sustainable construction in Malaysia gains more importance, research on the utilization of waste by products especially from oil palm in concrete is vigorously implemented. Utilization of different parts of oil palm fibres in lightweight foamed concrete have garnered positive outcomes in terms of conservation of natural resources, lessening of environmental problem and can improve concrete's durability and mechanical properties. Lightweight foamed concrete (LFC) is well-known as a low-density concrete with a wide range of applications. It is good in compression but poor under flexural load, as it produces multiple microcracks and cannot withstand the additional stress induced by applied forces without supplementary reinforcing elements. Hence this study was performed to examine the potential use of oil palm spikelets fibre (OPSF) in LFC in order to improve its engineering properties. LFC specimens were strengthened with OPSF fibre at different percentages of 0.15%, 0.30%, 0.45%, and 0.60%. LFC density of 1000 kg/m3 was prepared with a constant cement-to-sand ratio of 1:1.5, and cement-to-water ratio of 0.45. The parameters that had been evaluated were flexural strength, compressive strength and splitting tensile strength. The results revealed that the addition of 0.45% of OPSF fibre gave the best compressive, bending and splitting tensile strengths result. OPSF fibre in LFC aided to evade the promulgation of cracks in the plastic state in the cementitious matrix.

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Thermal Decomposition Kinetics of Torrefied Oil Palm Empty Fruit Bunch Briquettes

Chemistry & Chemical Technology ◽

10.23939/chcht10.03.325 ◽

2016 ◽

Vol 10 (3) ◽

pp. 325-328 ◽

Cited By ~ 1

Author(s):

Bemgba Nyakuma ◽

◽

Arshad Ahmad ◽

Anwar Johari ◽

Tuan Abdullah ◽

...

Keyword(s):

Thermal Decomposition ◽

Oil Palm ◽

Decomposition Kinetics ◽

Thermal Decomposition Kinetics ◽

Kinetic Properties ◽

Tg Analysis ◽

Empty Fruit Bunches ◽

Thermal Lag ◽

Profile Characteristics ◽

Kinetics Of

The study is aimed at investigating the thermal behavior and decomposition kinetics of torrefied oil palm empty fruit bunches (OPEFB) briquettes using a thermogravimetric (TG) analysis and the Coats-Redfern model. The results revealed that thermal decomposition kinetics of OPEFB and torrefied OPEFB briquettes is significantly influenced by the severity of torrefaction temperature. Furthermore, the temperature profile characteristics; Tonset, Tpeak, and Tend increased consistently due to the thermal lag observed during TG analysis. In addition, the torrefied OPEFB briquettes were observed to possess superior thermal and kinetic properties over the untorrefied OPEFB briquettes. It can be inferred that torrefaction improves the fuel properties of pelletized OPEFB for potential utilization in bioenergy conversion systems.

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APPLICATION OF OIL PALM EMPTY FRUIT BUNCH FIBERS IN STRENGTH IMPROVEMENT AS A FIBER REINFORCED CONCRETE

Jurnal Penelitian Kelapa Sawit ◽

10.22302/iopri.jur.jpks.v25i3.33 ◽

2017 ◽

Vol 25 (3) ◽

pp. 161-170

Author(s):

Henny Lydiasari ◽

Ari Yusman Manalu ◽

Rahmi Karolina

Keyword(s):

Tensile Strength ◽

Compressive Strength ◽

Crack Length ◽

Oil Palm ◽

Fiber Reinforced Concrete ◽

Structural Concrete ◽

Empty Fruit Bunches ◽

Construction Products ◽

By Products ◽

Strength Improvement

The potency of oil palm empty fruit bunches (OPEFB) fibers as one of the by-products of processing oil palm is increasing significantly so that proper management is needed in reducing environmental impact. One of the utilization of OPEFB fibers is as a substitution material in construction which usually the material is derived from non-renewable mining materials so that the number is increasingly limited. Therefore, it is necessary to study to know the performance of OPEFB fiber in making construction products especially concrete. In this case, the experiment was conducted using experimental method with variation of fiber addition by 0%, 10%, 15%, 20%, 25%, and 30%. Each specimen was tested by weight, slump value, compressive strength, tensile strength, elasticity and crack length. As the results, the variation of fibers addition by 10%, decrease of slump value is 7%, concrete weight is 3% and crack length is 8% while increase of the compressive strength is 2.7% and the modulus of elasticity is 33.3% but its tensile strength decreased insignificantly by 0.05% . Furthermore, the addition of fibers above 10% to 30% decreased compressive strength is still below 10% and tensile strength below 2% while the weight of concrete, slump value and crack length decreased. Therefore, the addition of 10% can replace the performance of concrete without fiber but the addition of above 10% can still be used on non-structural concrete.

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Flammability, Tensile, and Morphological Properties of Oil Palm Empty Fruit Bunches Fiber/Pet Yarn-Reinforced Epoxy Fire Retardant Hybrid Polymer Composites

Polymers ◽

10.3390/polym13081282 ◽

2021 ◽

Vol 13 (8) ◽

pp. 1282

Author(s):

M.J. Suriani ◽

Fathin Sakinah Mohd Radzi ◽

R.A. Ilyas ◽

Michal Petrů ◽

S.M. Sapuan ◽

...

Keyword(s):

Tensile Properties ◽

Oil Palm ◽

Natural Fiber ◽

Fire Retardant ◽

Epoxy Composites ◽

Morphological Properties ◽

Hybrid Polymer ◽

Fiber Volume ◽

Fiber Loading ◽

Empty Fruit Bunches

Oil palm empty fruit bunches (OPEFB) fiber is a natural fiber that possesses many advantages, such as biodegradability, eco-friendly, and renewable nature. The effect of the OPEFB fiber loading reinforced fire retardant epoxy composites on flammability and tensile properties of the polymer biocomposites were investigated. The tests were carried out with four parameters, which were specimen A (constant), specimen B (20% of fiber), specimen C (35% of fiber), and specimen D (50% of fiber). The PET yarn and magnesium hydroxide were used as the reinforcement material and fire retardant agent, respectively. The results were obtained from several tests, which were the horizontal burning test, tensile test, and scanning electron microscopy (SEM). The result for the burning test showed that specimen B exhibited better flammability properties, which had the lowest average burning rate (11.47 mm/min). From the tensile strength, specimen A revealed the highest value of 10.79 N/mm2. For the SEM morphological test, increasing defects on the surface ruptured were observed that resulted in decreased tensile properties of the composites. It can be summarized that the flammability and tensile properties of OPEFB fiber reinforced fire retardant epoxy composites were reduced when the fiber volume contents were increased at the optimal loading of 20%, with the values of 11.47 mm/min and 4.29 KPa, respectively.

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