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

Altwair, Nurdeen M.; Johari, Megat Azmi Megat; Hashim, Syed Fuad Saiyid; Zeyad, Abdullah M.

doi:10.4028/www.scientific.net/amr.626.121

Cited by 12 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both figures show an amorphous hump (as indicated in the circle) in the XRD pattern which indicates the presence of amorphous silica in both POFA and RHA. Previous studies have reported that the amorphous silica has an important role in the pozzolanic activity [5,9,10,11]. Meanwhile, the peak illustrated in the figures indicates the presence of crystalline in the binder.…”

Section: X-ray Diffractionmentioning

confidence: 84%

“…Meanwhile, the peak illustrated in the figures indicates the presence of crystalline in the binder. They only act as void filler and do not participate in the pozzolanic activity [5,9,10,11].…”

Section: X-ray Diffractionmentioning

confidence: 99%

“…Since the production of geopolymer concrete is totally cemented free, the CO2 emission is lower thus creating environment-friendly green concrete. Another advantage of geopolymer concrete is it increases the strength, ductility, and durability compared to the Ordinary Portland Cement (OPC) [4,5]. This is due to the geo-polymerisation reaction that occurs between silica and alumina molecules which contribute to the higher strength in the geopolymer concrete compared to the normal concrete [6].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance of Palm Oil Fuel Ash and Rice Husk Ash Based Geopolymer Mortar

2018

View full text Add to dashboard Cite

Geopolymer is a cement free material which uses binder produced by the reaction of the alkaline liquid solution with binding agents. In this study, the performance of geopolymer mortar using Palm Oil Fuel Ash (POFA) and Rice Husk Ash (RHA) as binding agents was carried out. The tests conducted in this research were Specific Gravity, X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), bulk density and compressive strength at 7th, 14th and 28th days. The results show both POFA and RHA materials fulfilled the criteria as a pozzolanic material. Meanwhile, the cement based mortar has the highest bulk density, followed by POFA based and RHA based geopolymer mortar. The cement based mortar was also identified to have the highest compressive strength due to its densest structure. However, it was found that the RHA based geopolymer mortar has higher compressive strength than the POFA based geopolymer despite its lower density. This is due to the high silica content in RHA which promote more silica-oxygen-silica bonds than POFA.

show abstract

Section: X-ray Diffractionmentioning

confidence: 84%

Section: X-ray Diffractionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance of Palm Oil Fuel Ash and Rice Husk Ash Based Geopolymer Mortar

2018

View full text Add to dashboard Cite

show abstract

“…POFA has a pozzolanic properties therefore can be used as partial cement replacement without sacrificing for either the mechanical or physical properties of cement [4,7,8]. The only feasible solution to reduce future environmental problems that may be caused by disposal of POFA is to use it as replacement of cement in concrete or quartz in ceramic industry [9]. Malaysia is among the largest producers of palm oil, thus, facing environmental problems by disposing palm oil fuel ash.…”

Section: Introductionmentioning

confidence: 99%

Effect of Molarity of HCl on Production of Silica (SiO2) From Palm Oil Fuel Ash (POFA)

Iya¹,

Noh²,

Razak³

et al. 2018

IJCRSET

View full text Add to dashboard Cite

Palm oil fuels ash (POFA) is a by-product from palm oil industries that constitutes of different compounds such as silica (SiO2), alumina (Al2O3) and many others, its abundances and improper disposal in waterways and as a landfill cause environmental pollution and hence need for its modification and usage. This paper presents an alternative way of producing silica from POFA. Untreated POFA was dried in an oven for 24 hours at a temperature of 110 °C and ground in a ball mill machine for 12 hours at a speed of 250 rev/s. After sieving, the powder was dispersed in 1 mole, 2 mole and 3 mole of HCl. An increase in the composition of SiO2 was observed using X-ray Fluorescence (XRF) analysis due to the increase in the molarity of acid, X-ray Diffraction analysis (XRD) and Scanning Electron Microscopy (SEM) shows that POFA has a crystalline and porous cellular structure. This shows that acidic wash treatment is good and an improved method for the production of silica from POFA.

show abstract

“…POFA is a by-product from biomass thermal power plants where oil palm residues are burned to generate electricity. Malaysia is one of the largest producers of palm oil with around 41% of the total world supply in years 2009 -2010 [1][2][3][4]. In Thailand, for example, it has been estimated that 2.1 million tons of biomass was used as fuel in 2004, producing about 100,000 tons (5%) of biomass ash [5][6].…”

Section: Introductionmentioning

confidence: 99%

Effects of Mould Pressure and Substitution of Quartz by Palm Oil Fuel Ash on Compressive Strength of Porcelain

Jamo

Noh

Ahmad

2015

AMR

View full text Add to dashboard Cite

Palm oil fuel ash (POFA) is a by-product from agricultural waste produced thousand tonnes every year. This paper presents the use of treated POFA as a substitute material for quartz in fabricating an improved porcelain ceramic. Untreated POFA was dried in an oven at 100 oC for 24 h. Then, it was ground in a ball mill for 1.5 h with the revolution rate of 200 rev/min to reduce the particle size. Next, it was sieved to remove the particles coarser than 50 μm. The POFA was treated by heating it at a temperature of 600 oC for 1.5 h. The mixed powder was then pressed into pellets at mould pressure of 31 MPa, 61 MPa, 91 MPa and 121 MPa. All the pellets were sintered at the temperature of 1100 oC for 2 h soaking time. It was found that the highest compressive strength of 34 MPa is at 15 wt% POFA and mould pressure of 91 MPa. The increment in the strength could be attributed from the changes in the microstructural features as a result of an optimum applied pressure.

show abstract

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

Cited by 12 publications

References 6 publications

Performance of Palm Oil Fuel Ash and Rice Husk Ash Based Geopolymer Mortar

Performance of Palm Oil Fuel Ash and Rice Husk Ash Based Geopolymer Mortar

Effect of Molarity of HCl on Production of Silica (SiO2) From Palm Oil Fuel Ash (POFA)

Effects of Mould Pressure and Substitution of Quartz by Palm Oil Fuel Ash on Compressive Strength of Porcelain

Contact Info

Product

Resources

About