Effect of combining Palm Oil Fuel Ash (POFA) and Rice Husk Ash (RHA) as partial cement replacement to the compressive strength of concrete

2018 ◽  
Vol 10 (8) ◽  
Author(s):  
Muhammad Afiq Tambichik ◽  
◽  
Abdul Aziz Abdul Samad ◽  
Noridah Mohamad ◽  
Ahmad Zurisman Mohd Ali ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash ◽  
Palm Oil Fuel Ash ◽  
Cement Replacement ◽  
Fuel Ash ◽  
Compressive Strength Of Concrete ◽  
Partial Cement Replacement ◽  
Oil Fuel

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

2018 ◽  
Vol 65 ◽  
pp. 02011 ◽  
Author(s):  
Dhabit Zahin Alias Tudin ◽  
Ahmad Nurfaidhi Rizalman ◽  
Hidayati Asrah
Keyword(s):  
Compressive Strength ◽  
Bulk Density ◽  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Binding Agents ◽  
Oil Fuel ◽  
Free Material

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.

scholarly journals The Compressive Strength and Water Absorption of Railway’s Concrete Sleepers Containing Palm Oil Fuel Ash (POFA) as a Cement Replacement Material

2021 ◽  
Vol 1200 (1) ◽  
pp. 012001
Author(s):  
A S Nurfarhanna ◽  
A Suraya Hani ◽  
O Mohamad Hairi ◽  
J Zalipah ◽  
AH Noor Azlina ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Palm Oil ◽  
Pozzolanic Reaction ◽  
Palm Oil Fuel Ash ◽  
Cement Replacement ◽  
Fuel Ash ◽  
Oil Fuel ◽  
Pozzolanic Properties ◽  
Curing Age

Abstract Railway’s concrete sleepers demand high consumption of cement which generates higher energy assumption and carbon emission. Meanwhile, in Malaysia, around 100 tonnes of palm oil fuel ash (POFA) were disposed of in the landfill, which endangering environmental health. However, this POFA have pozzolanic properties that can be employed as cementitious material. Therefore, this study aimed to produce a sustainable concrete sleeper by using POFA as a cement replacement material focusing on the compressive strength and water absorption performance. Concrete samples with a strength grade of 55MPa and w/c of 0.35 were prepared with three design mixes containing 0% (control), 20%(POFA20), and 40%(POFA40) of POFA. For the compressive strength test, a compression machine was used. Meanwhile, the water absorption was measured at atmospheric pressure. Both tests were conducted at 7 and 28 days of curing age. The results show that as the curing age increases, their water absorption and compressive strength improves, indicating a pozzolanic reaction. In terms of POFA content, the water absorption increases by 14% and 54% for POFA20 and POFA40, respectively. Meanwhile, the compressive strength reduced by 39% for POFA20 and 67% for POFA40. Since POFA20 meets the standards, it is however applicable in slab tracks.

scholarly journals Influence of porosity on the tensile strength of fine grained mortar containing fly ash, palm oil fuel ash and rice husk ash

2019 ◽  
Vol 513 ◽  
pp. 012027
Author(s):  
Zalipah Jamellodin ◽  
Hamidah Mohd Saman ◽  
Azmi Ibrahim ◽  
Suraya Hani Adnan ◽  
Nur Hafizah Abd Khalid
Keyword(s):  
Tensile Strength ◽  
Fly Ash ◽  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash ◽  
Palm Oil Fuel Ash ◽  
Fine Grained ◽  
Fuel Ash ◽  
Oil Fuel

Performance of Concrete by Using Palm Oil Fuel Ash (POFA) as a Cement Replacement Material

2015 ◽  
Vol 815 ◽  
pp. 29-33 ◽  
Author(s):  
Liyana Ahmad Sofri ◽  
Mohd Zulham Affandi Mohd Zahid ◽  
Nur Fitriah Isa ◽  
Muhammad Azizi Azizan ◽  
Muhammad Munsif Ahmad ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Solid Waste ◽  
Palm Oil ◽  
Low Cost ◽  
Weight Percent ◽  
Palm Oil Fuel Ash ◽  
Cement Replacement ◽  
Pozzolanic Material ◽  
Fuel Ash ◽  
Oil Fuel

Palm Oil Fuel Ash (POFA) is one of the solid waste in Malaysia and had trouble with the ash removal. Therefore, the use of waste oil palm ash can overcome the problem of solid waste. POFA is a pozzolanic material and it can act as a replacement of cement (OPC) to produce concrete with higher strength and low cost. POFA quality will increase as the range made up to a medium level of fineness in the size of 50 microns. POFA used to replace OPC is 0%, 10%, 30% and 50% by weight percent of OPC. POFA concrete compressive strength will be tested after a curing process that concrete age of 7 days and 28 days. POFA concrete density is also tested and compared with OPC concrete. Results showed that compressive strength POFA lower than normal concrete. On the other hand, the replacement of cement by 10% POFA shows a record high in compressive strength compared with other POFA mixing at the age of 7 days and 28 days. Fineness pozzolanic POFA is the best material and can be used as a cement replacement alternative.

scholarly journals Characterization of palm oil fuel ash and eggshell powder as partial cement replacement in concrete

2018 ◽  
Vol 431 ◽  
pp. 032002
Author(s):  
N H A Khalid ◽  
N N A Rasid ◽  
A R Mohd.Sam ◽  
N H A S Lim ◽  
M Ismail ◽  
...  
Keyword(s):  
Palm Oil ◽  
Palm Oil Fuel Ash ◽  
Cement Replacement ◽  
Fuel Ash ◽  
Partial Cement Replacement ◽  
Oil Fuel
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