Influence of palm oil fuel ash on ultimate flexural and uniaxial tensile strength of green ultra-high performance fiber reinforced cementitious composites

The carbonation rate of reinforced concrete is influenced by three parameters, namely temperature, relative humidity, and concentration of carbon dioxide (CO2) in the surroundings. As knowledge of the service lifespan of reinforced concrete is crucial in terms of corrosion, the carbonation process is important to study, and high-performance durable reinforced concretes can be produced to prolong the effects of corrosion. To examine carbonation resistance, accelerated carbonation testing was conducted in accordance with the standards of BS 1881-210:2013. In this study, 10–30% of micro palm oil fuel ash (mPOFA) and 0.5–1.5% of nano-POFA (nPOFA) were incorporated into concrete mixtures to determine the optimum amount for achieving the highest carbonation resistance after 28 days water curing and accelerated CO2 conditions up to 70 days of exposure. The effect of carbonation on concrete specimens with the inclusion of mPOFA and nPOFA was investigated. The carbonation depth was identified by phenolphthalein solution. The highest carbonation resistance of concrete was found after the inclusion of 10% mPOFA and 0.5% nPOFA, while the lowest carbonation resistance was found after the inclusion of 30% mPOFA and 1.5% nPOFA.

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UTILIZATION OF PALM OIL FUEL ASH IN CONCRETE: A REVIEW / PALMI ALIEJAUS KURO PELENŲ NAUDOJIMAS BETONE. APŽVALGA

Journal of Civil Engineering and Management ◽

10.3846/13923730.2011.574450 ◽

2011 ◽

Vol 17 (2) ◽

pp. 234-247 ◽

Cited By ~ 61

Author(s):

Md. Safiuddin ◽

Md. Abdus Salam ◽

Mohd Zamin Jumaat

Keyword(s):

Palm Oil ◽

High Performance ◽

Health Hazard ◽

Chemical Properties ◽

Palm Oil Fuel Ash ◽

Fuel Ash ◽

Hardened Properties ◽

Oil Fuel ◽

Cementing Material ◽

Durability Of Concrete

Uncontrolled dumping of palm oil fuel ash (POFA) not only occupies valuable land but also creates environmental pollution and health hazard. These problems can be reduced to a large extent by using POFA in concrete. A number of research works have been carried out to investigate the potential of POFA for use as a supplementary cementing material in normal, high strength, high performance, and aerated concretes. This paper presents a review on the use of POFA in different types of concrete. It firstly discusses the physical and chemical properties of POFA. Then the emphasis has been given on the effects of POFA on the fresh and hardened properties, and durability of concrete. This paper shows that both ground and unground POFA increase the water demand and thus decrease the workability of concrete. However, ground POFA has shown a good potential for improving the hardened properties and durability of concrete due to its satisfactory micro-filling ability and pozzolanic activity. In addition to discussing the benefits of POFA, this study has identified certain gaps in the present state of knowledge on POFA concrete, and listed several research needs for future investigation. The findings of this study would encourage the use of POFA as a supplementary cementing material for concrete. Santrauka Nekontroliuojami palmių aliejaus kuro pelenų (POFA) sąvartynai ne tik užima vertingus žemės plotus, bet ir teršia aplinką bei kelia pavojų sveikatai. Šios problemos gali būti sumažintos POFA naudojant betone. Daug mokslinių tyrimų buvo atlikta siekiant ištirti POFA potencialą, kad juos būtų galima naudoti kaip papildomą normalių, didelio stiprio, aukštos kokybės ir poringujų betonų cementavimo medžiagą. Šiame straipsnyje apžvelgiama, kaip POFA naudojami įvairių tipų betonams. Visų pirma aptariamos fizinės ir cheminės POFA savybės. Tuomet dėmesys atkreipiamas į šviežio ir sukietėjusio betono savybes bei betono ilgaamžiškuma. Šis straipsnis parodo, kad tiek malti, tiek nemalti POFA padidina vandens poreikį ir blogina technologines charakteristikas. Tačiau malti POFA parodė potencialą gerinant betono atsparumo ir ilgaamžiškumo savybes, nes jie pasižymi geromis mikroužpildų savybėmis ir pucolaniniu aktyvumu. Be to, aptarta POFA nauda, nustatytos tam tikros šiuo metu turimų žinių apie POFA betoną spragos ir išvardyta daugelis tyrimų, kurie turėtų būti atlikti ateityje. Šio darbo išvados turėtųpaskatinti naudoti POFA kaip papildomą rišamąją betono medžiagą.

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SIFAT-SIFAT MEKANIK KOMPOSIT POLIPROPILENA BERPENGISI ABU PEMBAKARAN BIOMASSA KELAPA SAWIT

Jurnal Teknik Kimia USU ◽

10.32734/jtk.v3i1.1496 ◽

2014 ◽

Vol 3 (1) ◽

pp. 19-22

Author(s):

Danil Tarmizi ◽

Kartini Noor Hafni ◽

A. Haris Simamora

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Impact Strength ◽

Palm Oil ◽

Palm Oil Fuel Ash ◽

Elongation At Break ◽

Polypropylene Composites ◽

Molding Method ◽

Fuel Ash ◽

Oil Fuel

This study aimed to determine the effect of palm oil fuel ash composition of the mechanical properties of polypropylene composites. Composites made by extrusion and injection molding method by mixing polypropylene and palm oil fuel ash with filler composition, respectively 10, 15, and 20 (% w/w). Mechanical properties which tested are tensile strength, elongation at break, and impact strength. The results obtained from the study is the addition of filler palm oil fuel ash in polypropylene composites decrease the mechanical properties of the composites, such as tensile strength, elongation at break, and impact strength.

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Properties of Concrete Containing Palm Oil Fuel Ash and Expanded Polystyrene Beads

International Journal of Integrated Engineering ◽

10.30880/ijie.2020.12.09.010 ◽

2020 ◽

Vol 12 (9) ◽

Author(s):

Mohamad Hairi Osman ◽

◽

Suraya Hani Adnan ◽

Nurul Izlin Mazlin ◽

Wan Amizah Wan Jusoh ◽

...

Keyword(s):

Tensile Strength ◽

Compressive Strength ◽

Palm Oil ◽

Expanded Polystyrene ◽

Stress Strain ◽

Normal Concrete ◽

Palm Oil Fuel Ash ◽

Fuel Ash ◽

Axial Compressive Strength ◽

Oil Fuel

This paper investigates the stress strain behaviour of concrete containing Palm Oil Fuel Ash and Expanded Polystyrene, axial compressive strength, tensile strength and modulus of elasticity. EPS-POFA concrete was prepared by substituting fine aggregates with EPS beads and cement replaced with POFA by 10%, 20% and 30%. Results of this study showed that EPS-POFA concrete exhibited low axial compressive strength, peak strain, tensile strength and elastic modulus when the EPS and POFA contents in concrete increased. However, the decrease in axial compressive strength of concretes with containing 10 to 20% EPS and POFA are suitable amount and acceptable to be applied on building structure as per stated in America Concrete Institute 318 with minimum specified compressive strength for structural concrete is 2500 psi (17 MPa). While, the failure of EPS-POFA concrete under axial compression gradually occurred and the concretes were able to retain the load after failure without full collapse. The slope of stress-strain curve of concretes with containing EPS and POFA was lower than that of normal concrete, demonstrating that the normal concrete more brittleness that EPS-POFA concretes.

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Mechanical Properties of Engineered Cementitious Composite with Palm Oil Fuel Ash as a Supplementary Binder

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.626.121 ◽

2012 ◽

Vol 626 ◽

pp. 121-125 ◽

Cited By ~ 3

Author(s):

Nurdeen M. Altwair ◽

M.A. Megat Johari ◽

Syed Fuad Saiyid Hashim ◽

A.M. Zeyad

Keyword(s):

Mechanical Properties ◽

Palm Oil ◽

Concrete Strength ◽

Tensile Tests ◽

Uniaxial Tensile ◽

Cementitious Composite ◽

Palm Oil Fuel Ash ◽

Engineered Cementitious Composite ◽

Fuel Ash ◽

Oil Fuel

Palm oil fuel ash (POFA) was used to produce engineered cementitious composite (ECC) in this research where ECC mixtures containing different volume of POFA (up to 55% by weight) of cement, were prepared. Mechanical properties of the resulting ECC mixtures were assessed using the compression, flexural and uniaxial tensile tests. The findings of the study show that the use of POFA improves the mechanical properties of the ECCs. The ECC mix with 1.2 POFA/cement ratio achieved a compressive strength of 30 MPa at 28 days, which is within the normal range of concrete strength for many applications. Moreover, the results portray that the use of POFA should be helpful for achieving strain-hardening behaviour. The increase in the POFA content concomitantly increased the flexural deflection and tensile strain capacities of the POFA-ECC. Furthermore, crack width of the ECC was significantly decreased with an increase of POFA content. In addition, the resulting POFA-ECC is expected to enhance the material greenness and durability.

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Effect of Utilisation of Nano POFA on Performance of Self-Consolidating High-Performance Concrete (SCHPC)

Scientific Research Journal ◽

10.24191/srj.v18i2.11396 ◽

2021 ◽

Vol 18 (2) ◽

pp. 103-117

Author(s):

Nuradila Izzaty Halim ◽

◽

Aidan Newman ◽

Muhd Norhasri Muhd Sidek ◽

Hamidah Mohd Saman ◽

...

Keyword(s):

Human Health ◽

Palm Oil ◽

High Performance ◽

High Performance Concrete ◽

Compression Tests ◽

Palm Oil Fuel Ash ◽

Flow Table ◽

Fuel Ash ◽

Oil Fuel ◽

Good Workability

Malaysia's palm oil industry plays a significant role in the country's economy. However, a large amount of palm oil fuel ash (POFA), a by-product of this industry, may negatively affect the environment and human health. Hence, this study hypothesized that POFA might be re-used in the form of replacement in concrete to lessen the risk to the environment or human health. Self-consolidating high-performance concrete (SCHPC) has been innovating progressively over the years. In this paper, SCHPC is innovated by utilising nano POFA (NaPOFA) to improve its performance. The POFA performance greatly improved when the particle size is reduced because the finer forms of POFA react effectively with the other constituent materials to produce stronger concrete. Hence this paper presents the experiment of the effect of utilisation of NaPOFA as a replacement to cement ranging between 0% and 10% to produce a self-consolidating high-performance concrete with good workability. The tests conducted were the flow table and compression test. The specimen used in the compression tests were 50 mm concrete cubes, tested in 1, 3, 7, 14, and 28 days. It was found that the inclusion of 1% POFA as a replacement to cement in concrete produced the highest compressive strength, 73.31 MPa, on the 28th day of testing. It was also found that its workability was as good as the control concrete. Thus, the utilisation of POFA could be considered environmental-friendly since it can be used as cement replacement and enhance the performance in terms of workability and strength.

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