scholarly journals Effect of Curing Method on Concrete with Palm Oil Fuel Ash as a Cement Replacement

2018 ◽  
Vol 7 (3.36) ◽  
pp. 68 ◽  
Author(s):  
Wael Elleithy ◽  
Chin Chee Fung ◽  
Jayaprakash Jaganathan ◽  
Teck Leong Lau ◽  
Mohammed Parvez Anwar
Keyword(s):  
Flexural Strength ◽  
Palm Oil ◽  
Experimental Program ◽  
Palm Oil Fuel Ash ◽  
Cement Replacement ◽  
Fuel Ash ◽  
Curing Methods ◽  
Water Curing ◽  
Curing Method ◽  
Oil Fuel

In this paper, the effect of different curing methods on the strength of concrete with palm oil fuel ash as a cement replacement is investigated. An experimental program was carried out to study the effect of five different curing methods, i.e., water curing (WC), air curing (AC), plastic-wrapped curing (PC), oven and water curing (OWC), and oven and air curing (OAC), on the compressive and flexural strengths of palm oil fuel ash concrete (POFA20), where 20% of the cement was replaced by palm oil fuel ash. The results obtained from this investigation showed that POFA20-WC has the highest compressive and flexural strength, whilst POFA20-AC has the lowest at the age of 28 days. Both of the POFA20-OWC and POFA20-OAC have the highest compressive and flexural strength at the age of 3 days. The results emphasize the positive effect of oven curing procedure to achieve high compressive and flexural strength at early stage. However, the rate of hydration started to decrease at later stages, which leads to much lower rate of gaining strength in POFA20-OWC and POFA20-OAC. Water curing method is thus recommended in the construction industry except for extraordinary requirements and/or circumstances.   

Sustainable clean pervious concrete pavement production incorporating palm oil fuel ash as cement replacement

2018 ◽  
Vol 172 ◽  
pp. 1476-1485 ◽  
Author(s):  
Elnaz Khankhaje ◽  
Mahdi Rafieizonooz ◽  
Mohd Razman Salim ◽  
Rawid Khan ◽  
Jahangir Mirza ◽  
...  
Keyword(s):  
Palm Oil ◽  
Concrete Pavement ◽  
Pervious Concrete ◽  
Palm Oil Fuel Ash ◽  
Cement Replacement ◽  
Fuel Ash ◽  
Oil Fuel

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 Environmental benefits of incorporating palm oil fuel ash in cement concrete and cement mortar

2020 ◽  
Vol 158 ◽  
pp. 03005 ◽  
Author(s):  
G.A. Jokhio ◽  
H.M. Hamada ◽  
A.M. Humada ◽  
Y Gul ◽  
Abid Abu-Tair
Keyword(s):  
Palm Oil ◽  
Cement Mortar ◽  
Environmental Benefits ◽  
Partial Replacement ◽  
Cement Concrete ◽  
Palm Oil Fuel Ash ◽  
Cement Replacement ◽  
Concrete Production ◽  
Fuel Ash ◽  
Oil Fuel

Palm oil fuel ash (POFA) is a by-product waste material from palm oil with many economic and environmental benefits. A lack of enough information on the advantages of POFA in the concrete production in various proportions was the main cause to carry out this work. This paper shows advantages of POFA as a partial replacement of cement in concrete production, especially cement mortar. The data collection has been done from the literature review related to the use of POFA as partial cement replacement in the production of cement concrete and mortar. Therefore, this paper can potentially become a guide for researchers and manufacturers to use POFA in various proportions to replace the ordinary Portland cement (OPC) in cement concrete and mortar. The positive and negative impact resulting from this material has been discussed carefully. This study recommends that researchers and academics should perform more experimental works in order to illustrate the desired benefits from POFA as cement replacement, thus mitigate the adverse environmental impacts of cement.

Properties of sand cement brick containing ground palm oil fuel ash as fine aggregate replacement

2018 ◽  
Vol 9 (3) ◽  
pp. 71
Author(s):  
Khairunisa Muthusamy ◽  
Muhammad Azreen Ibrahim ◽  
Nor Hazurina Othman ◽  
Ahmed Mokhtar Albshir Budiea ◽  
Saffuan Wan Ahmad
Keyword(s):  
Palm Oil ◽  
Oil Industry ◽  
Pozzolanic Reaction ◽  
Fine Aggregate ◽  
River Sand ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Curing Methods ◽  
Water Absorption Test ◽  
Oil Fuel

The prosperous palm oil industry continues to generate increasing amount of palm oil fuel ash which disposed as environmental polluting waste. Thus, research was conducted to investigate the effect of ground palm oil fuel ash as partial fine aggregate replacement towards properties of sand cement brick. Series of mixes were prepared with 0%, 5%, 10%, 15%, 20% and 25% ground palm oil fuel ash partially substituting the river sand. Two types of curing methods were applied namely water and air curing. The bricks were subjected to compressive strength, flexural strength and water absorption test at 28 days. The results show that utilization of 15% ground palm oil fuel ash as fine aggregate replacement increases the brick strength. The pozzolanic reaction and filler effect of the finely ground ash makes the concrete internal structure denser resulting in strength enhancement. The use of ground palm oil fuel ash in brick production would reduce amount of palm oil waste disposed, save the use of land for dumping purpose and decrease quantity of river sand mined.

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
Sign in / Sign up

Export Citation Format

Share Document