scholarly journals Mechanical Properties of Oil Palm Shell Composites

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
J. Sahari ◽  
M. A. Maleque
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Oil Palm ◽  
Volume Fraction ◽  
Unsaturated Polyester ◽  
Tensile Modulus ◽  
Sem Analysis ◽  
Palm Shell ◽  
Pull Out ◽  
Oil Palm Shell

The mechanical properties of oil palm shell (OPS) composites were investigated with different volume fraction of OPS such as 0%, 10%, 20%, and 30% using unsaturated polyester (UPE) as a matrix. The results presented that the tensile strength and tensile modulus of the UPE/OPS composites increased as the OPS loading increased. The highest tensile modulus of UPE/OPS was obtained at 30 vol% of OPS with the value of 8.50 GPa. The tensile strength of the composites was 1.15, 1.17, and 1.18 times higher than the pure UPE matrix for 10, 20, and 30 vol% of OPS, respectively. The FTIR spectra showed the change of functional group of composites with different volume fractions of OPS. SEM analysis shows the filler pull-out present in the composites which proved the poor filler-matrix interfacial bonding.

scholarly journals Effects of Low Volume Fraction of Polyvinyl Alcohol Fibers on the Mechanical Properties of Oil Palm Shell Lightweight Concrete

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Ming Kun Yew ◽  
Hilmi Bin Mahmud ◽  
Bee Chin Ang ◽  
Ming Chian Yew
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Polyvinyl Alcohol ◽  
Oil Palm ◽  
Lightweight Concrete ◽  
Volume Fraction ◽  
High Strength ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Low Volume

This paper presents the effects of low volume fraction(Vf)of polyvinyl alcohol (PVA) fibers on the mechanical properties of oil palm shell (OPS) high strength lightweight concrete mixtures. The slump, density, compressive strength, splitting tensile strength, flexural strength, and modulus of elasticity under various curing conditions have been measured and evaluated. The results indicate that an increase in PVA fibers decreases the workability of the concrete and decreases the density slightly. The 28-day compressive strength of oil palm shell fiber-reinforced concrete (OPSFRC) high strength lightweight concrete (HSLWC) subject to continuous moist curing was within the range of 43–49 MPa. The average modulus of elasticity (E) value is found to be 16.1 GPa for all mixes, which is higher than that reported in previous studies and is within the range of normal weight concrete. Hence, the findings of this study revealed that the PVA fibers can be used as an alternative material to enhance the properties of OPS HSLWC for building and construction applications.

scholarly journals EFFECT OF OIL PALM FIBRES VOLUME FRACTION ON MECHANICAL PROPERTIES OF POLYESTER COMPOSITES

2010 ◽  
Vol 24 (23) ◽  
pp. 4459-4470 ◽  
Author(s):  
B. F. YOUSIF
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Oil Palm ◽  
Mechanical Performance ◽  
Volume Fraction ◽  
Single Fibre ◽  
Volume Fractions ◽  
Pull Out ◽  
Polyester Composite ◽  
Polyester Composites

The effect of two types of oil palm fibres (bunch and fruit) on mechanical properties of polyester composites is examined in the current work considering different volume fractions. Tensile, compression, and flexural properties of the composites were investigated. In addition to that, tensile strengths were calculated theoretically using Hirsch model. Scanning electron microscope (SEM) was used to observe the fracture mechanism of the specimens. Single fibre pull-out tests were performed to determine the interfacial shear strength between polyester resin and both types of oil palm fibres. Results revealed that both types of oil palm fibres enhanced the mechanical performance of polyester composites. At a higher volume fraction (40–50%), tensile strength of the polyester composite was improved, i.e., 2.5 times improvement in the tensile strength value. Experimental tensile strength values of oil palm bunch/polyester composites have a good correlation with the theoretical results, especially at low volume fractions of fibre. Flexural strength of polyester worsened with oil palm fibres at all volume fractions of fibre.

scholarly journals THE EFFECT OF ASPECT RATIO AND VOLUME FRACTION ON MECHANICAL PROPERTIES OF STEEL FIBRE-REINFORCED OIL PALM SHELL CONCRETE

2015 ◽  
Vol 22 (2) ◽  
pp. 168-177 ◽  
Author(s):  
Soon Poh YAP ◽  
U. Johnson ALENGARAM ◽  
Mohd. Zamin JUMAAT
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Aspect Ratio ◽  
Oil Palm ◽  
Volume Fraction ◽  
Lightweight Aggregate Concrete ◽  
Hardened Concrete ◽  
Steel Fibres ◽  
Palm Shell ◽  
Oil Palm Shell

The utilization of oil palm shell (OPS) as a replacement for conventional coarse aggregate produces a greener structural lightweight aggregate concrete (LWAC). Steel fibres enhance the mechanical properties of LWAC including OPS concrete (OPSC). This paper reports on the influence of the aspect ratio (l/d) and volume fraction (Vf) of hooked end steel fibres in oil palm shell fibre-reinforced concrete (OPSFRC). The fresh and hardened concrete properties, including ultrasonic pulse velocity (UPV) and post-failure compressive strength (PFCS) of ten mixes with three each for l/d (55, 65 and 80) and Vf (0.25%, 0.5% and 0.75%) are investigated. The mix with an l/d of 65 produced the highest values of slump, density, and compressive strength. The enhancement in the splitting tensile strength of 83% compared to the control mix was obtained for the mix with the highest l/d. Generally, the increase in Vf from 0.25% to 0.75% improved the mechanical properties. The UPV results indicated that all OPSFRC and PFCS of 66–70% obtained were of good quality.

Pengaruh Tekanan dan Penggunaan Conplast terhadap Sifat Mekanik Eternit dari Abu Cangkang Sawit

2016 ◽  
Vol 8 (15) ◽  
pp. 47-54
Author(s):  
Haspiadi Haspiadi
Keyword(s):  
Mechanical Properties ◽  
Oil Palm ◽  
Modulus Of Elasticity ◽  
Modulus Of Rupture ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Density Values ◽  
Test Result

The purpose of this research is to know the influence of pressure and use of conplast against mechanical properties which are a Modulus of Elasticity (MOE) and Modulus of Rupture (MOR) of plasterboard. The study is done because still low quality of plasterboard made from a mixture of ashes of oil-palm shell especially of the mechanical properties compared to the controls. The method of this reserach used variation of printed pressure and the addition of conplast. Test result is obtained that the highest value of Modulus of Elasticity (MOE) 90875.94 Kg/cm2, Modulus of Rupture (MOR) 61.16 Kg/cm2 and density values in generally good printed at the pressure 60 g/cm3 and the addition of conplast 25% as well as the composition of the ash of palm shell oil 40%: limestone 40%: cement 15%: fiber 5% and 300 mL of water. ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui pengaruh tekanan dan penggunaan conplast terhadap sifat mekanik yaitu kuat lentur dan keteguhan patah eternit berbahan dasar abu cangkang sawit. Penelitian ini dilakukan karena masi rendahnya mutu eternit berbahan campuran abu cangkang sawit dari bolier khususnya sifat mekanik dibandingkan dengan kontrol. Metode penelitian yang digunakan adalah dengan variasi tekanan cetak dan penambahan conplast. Hasil uji diperoleh bahwa kuat lentur tertinggi sebesar 90875,94 Kg/cm2 dan keteguhan patah sebesar 61,16 Kg/cm2, yang dicetak pada tekanan 60 g/cm3 dan penambahan conplast 25% dengan komposisi  abu cangkang sawit 40 %: kapur 40 % : semen 15 %: serat 5 % dan air 300 mL.Kata Kunci :  Abu cangkang sawit, conplast, kuat lentur, keteguhan patah.

Durability Performance of Oil Palm Shell Lightweight Concrete as Insulation Concrete

2015 ◽  
Vol 747 ◽  
pp. 217-220
Author(s):  
Eravan Serri ◽  
Mohd Zailan Sulieman ◽  
Md Azree Othuman Mydin
Keyword(s):  
Thermal Conductivity ◽  
Oil Palm ◽  
Lightweight Concrete ◽  
Volume Fraction ◽  
Strong Relationship ◽  
Air Permeability ◽  
Concrete Category ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Durability Performance

This paper presents a solid agricultural solid waste, namely oil palm shell (OPS) as coarse aggregate to produce insulation concrete. This study will investigate the porosity, air permeability and thermal conductivity of OPS lightweight concrete (OPSLC). Nine mix designs were developed which comprised three OPS shapes and three volume fractions of OPS. The results indicated that increased volume fraction of OPS caused decreased durability performance and thermal conductivity. The shape of OPS is found to have significant effects to the porosity content and air permeability values. Thus, there is a strong relationship between porosity content and air permeability for all specimens. Based on the results, all specimens are found to be in the range of insulation concrete category except for specimen C-30, which has more than 0.75W/mK thermal conductivity according to RILEM requirement. The thermal conductivity of OPSLC is comparable with artificial lightweight aggregate.

An Investigation on Tensile, Compression and Flexural Properties of Natural Fibre Reinforced Polyester Composites

2007 ◽  
Author(s):  
B. F. Yousif ◽  
K. J. Wong ◽  
N. S. M. El-Tayeb
Keyword(s):  
Tensile Strength ◽  
Oil Palm ◽  
Volume Fraction ◽  
Flexural Properties ◽  
Palm Fruit ◽  
Pull Out ◽  
Polyester Composites ◽  
Oil Palm Fibre ◽  
Palm Fibre ◽  
Palm Bunch

In the present work, effects of two types of natural fibres on mechanical properties of polyester composites were investigated at different volume fractions of fibre. Tensile, compression, and flexural properties of oil palm bunch and oil palm fruit fibres reinforced polyester composites were investigated. Additionally, tensile strength of the selected composites was calculated theoretically. Scanning electron microscope was used to observe the fracture mechanism of the specimens. Single fiber pull-out tests were carried out to determine the interfacial shear strength between polyester resin and both types of oil palm fibre. As results, it was found that both types of oil palm fibre enhanced the mechanical performance of polyester composites. At higher volume fraction (≈41%), tensile strength was improved, when polyester reinforced with oil palm fruit fibres, i.e. 2.5 folds improvement in the tensile strength value. Further, experimental tensile strength values of oil palm bunch/polyester composites was found to be less varied compared to theoretical results. Flexural strength of polyester was worsened with oil palm fibres at all of fibre volume fraction.

Effects of polypropylene twisted bundle fibers on the mechanical properties of high-strength oil palm shell lightweight concrete

2015 ◽  
Vol 49 (4) ◽  
pp. 1221-1233 ◽  
Author(s):  
Ming Kun Yew ◽  
Hilmi Bin Mahmud ◽  
Payam Shafigh ◽  
Bee Chin Ang ◽  
Ming Chian Yew
Keyword(s):  
Mechanical Properties ◽  
Oil Palm ◽  
Lightweight Concrete ◽  
High Strength ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Twisted Bundle

scholarly journals A Feasibility Study on partially substituted Coarse Aggregate with Oil Palm Shell in Coconut Fiber Reinforced Concrete

2018 ◽  
Vol 7 (3.36) ◽  
pp. 62
Author(s):  
Siaw Wee Ong ◽  
Teck Leong Lau ◽  
Tuck Wai Yeong ◽  
Mohammed Parvez Anwar ◽  
Wael Elleithy
Keyword(s):  
Reinforced Concrete ◽  
Oil Palm ◽  
Coarse Aggregate ◽  
Volume Fraction ◽  
Waste Products ◽  
Coarse Aggregates ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Coconut Fibre ◽  
The Impact

In the search of alternative materials for the replacement of conventional coarse aggregate, the feasibility of utilizing agricultural waste products was looked into in the effort of producing a more environmentally friendly and less dense concrete. Mechanical properties of partially substituted coarse aggregates using oil palm shell (OPS) in a concrete composite reinforced with a low volume fraction of coconut fibre (CF) have been studied for its feasibility as an alternative solution to the problem. Analysis on the impact of compressive strength, flexural strength, density and Young’s modulus have been conducted on hardened coconut fibre reinforced concrete (CFRC) at 15% and 25% substitution by volume of conventional coarse aggregates with OPS. The properties of the composite concrete were evaluated with reference to the control sample, CFRC reinforced with 0.2% fibre volume fraction. The results have shown that it is feasible to produce a sustainable grade 30 concrete of lower density with CFRC at 25% level of OPS substitution.  

DURABILITY PERFORMANCE OF OIL PALM SHELL LIGHTWEIGHT CONCRETE FOR INSULATION BUILDING MATERIAL

2016 ◽  
Vol 78 (5) ◽  
Author(s):  
Eravan Serri ◽  
Mohd Zailan Suleiman ◽  
Roslan Talib ◽  
Mahyuddin Ramli
Keyword(s):  
Thermal Conductivity ◽  
Water Absorption ◽  
Oil Palm ◽  
Lightweight Concrete ◽  
Volume Fraction ◽  
Cement Matrix ◽  
Void Content ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Durability Performance

The advantage of oil palm shell (OPS) as coarse aggregate in concrete can be extended to insulation concrete capacity. Thus, this paper will explain the durability of oil palm shell lightweight concrete (OPSLC) for insulation concrete capacity in building. Nine mix designs were developed containing high volume of OPS, which is 30, 32 and 34% from total volume of concrete with three different OPS shapes (raw, crushed and partly crushed). The water absorption and drying shrinkage were examined; besides, thermal conductivity testing that was conducted for confirmation as insulation concrete category.  The observation of all the specimens lasted one year for durability performance test and 28 days for thermal conductivity value. The highest water absorption value is 43% from previous study that was designed for structural concrete. Higher OPS volume fraction produced higher air void content and caused water loss and increase of the hydration effects on OPSLC shrinkage. It also affected the microstructure conditions, especially specimens that used 34% of OPS volume fraction which show weak interface bond in cement matrix.

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