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 ◽  
...  

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.

2016 ◽  
Vol 9 (2) ◽  
pp. 120-128
Author(s):  
Haspiadi Haspiadi ◽  
Kurniawaty Kurniawaty

Research of  the utilization solid waste of palm oil fuel ash from boiler as row materials  for manufacturing light concrete brick has been conducted. The main objective of this study is to investigate the potential use solid waste of palm oil fuel ash from palm oil mill boilers as row materials for manufacturing light concrete brick has recently attracted for an alternative environmentally sustainable application. In this study, light concrete brick made with various proportions of palm oil fuel ash from palm oil mill boilers and sand were fabricated and studied under laboratory scales. Percentage of palm oil fuel ash of 0% as a control,  10%, 20%, 30%, 40%, 50%, 60%, replacement  sand, wheras others materials such as Portland cement, lime, gypsum, foaming agent and aluminium with the numbers constant. The quality of light concreate brick   were applied followed by the compressive strength test, density and water absorption capacity. The study discovered that the compressive strength for all composition meet the recommended value to light structural of 6.89 MPa as prescribed in SNI 03-3449-2002. In the same manner density of light concrete brick for all proportion under the maximum density recommended value of 1400 Kg/m3 according to SNI 03-3449-2002. While water absorption capacity of increased by the increasing use of ashes. Therefore, palm oil fuel ash from boiler can be used as raw material for the light concrete brick which is  environmental friendly because using solid waste and also an alternative handling solid waste.ABSTRAKPenelitian pemanfaatan limbah padat abu cangkang dan serat kelapa sawit dari boiler sebagai bahan baku pembuatan bata beton ringan telah dilakukan. Tujuan dari penelitian ini adalah pemanfaatan limbah padat abu boiler berbahan bakar cangkang dan serat sebagai bahan pembuatan bata beton ringan sebagai salah satu alternatif pengelolaan lingkungan yang bekelanjutan. Dalam penelitian ini, bata beton ringan dibuat dengan berbagai komposisi abu boiler dan pasir yang diproduksi dalam  skala laboratorium. Persentase dari abu berturut-turut 0% sebagai kontrol, 10%, 20%, 30%, 40%, 50% dan 60% mensubtitusi pasir, sedangkan bahan lain yaitu semen, kapur, gypsum,  foaming  agent serta aluminium pasta dengan jumlah tetap. Mutu bata beton ringan yang diujikan adalah kuat tekan, bobot jenis dan daya serap air. Hasil penelitian menunjukkan bahwa kuat tekan untuk semua komposisi memenuhi batas minimum yang dipersyaratkan untuk stuktural ringan yaitu 6,89 MPa sesuai SNI 03-3449-2002. Demikian pula bobot jenis dari bata ringan yang dihasilkan masih dibawah dari batas maksimum yang direkomendasikan SNI 03-3449-2002 yaitu maksimal 1400 Kg/m3. Sedangkan daya serap air mengalami kenaikan dengan naiknya jumlah abu yang digunakan . Limbah padat abu boiler berbahan bakar cangkang dan serat sawit dapat dimanfaatkan sebagai bahan baku pembuatan bata beton ringan yang ramah lingkungan dengan memanfaatkan limbah dan menjadi salah satu alternatif pengelolaan limbah. Kata kunci :  Abu cangkang kelapa sawit,  bata beton ringan, bobot jenis,  daya serap air,  limbah,  kuat tekan


2021 ◽  
Vol 1200 (1) ◽  
pp. 012001
Author(s):  
A S Nurfarhanna ◽  
A Suraya Hani ◽  
O Mohamad Hairi ◽  
J Zalipah ◽  
AH Noor Azlina ◽  
...  

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.


2020 ◽  
Vol 997 ◽  
pp. 3-7
Author(s):  
Abdul Wafi Razali ◽  
Nur Fadilah Darmansah ◽  
Afzan Ahmad Zaini ◽  
Siti Halipah Ibrahim ◽  
Nadia Zaini ◽  
...  

The usage of agricultural waste in form of ashes as one of the constituent materials in concrete has been studied in recent years. Palm Oil Fuel Ash (POFA) is one of the largest agricultural wastes produced in Malaysia that contain high amount of silica with pozzolanic properties. The mass production of POFA are typically disposed to open area and in turn can generate environmental issues and health hazards. Due to the waste disposal problem, a number of initiatives have been done by utilizing POFA into various construction materials including as substitute to Ordinary Portland Cement (OPC) in concrete production. This paper discusses on the water absorption properties and compressive strength of concrete by utilizing POFA in several series of cement replacement. OPC was replaced by POFA at 2.5%, 5%,7.5% and 10% in these series of mix design. Control OPC concrete sample was also prepared for comparison. The samples were prepared in 100 mm cubic moulds and tested for compressive strength and water absorption for 7, 14 and 28-day curing ages. Three replicates were prepared for each concrete mix and for each test conducted. The results stipulated that the higher percentage of POFA replacement decreased the compressive strength and increased the water absorption amount of concrete mixture over different concrete ages.


2018 ◽  
Vol 25 (22) ◽  
pp. 21644-21655 ◽  
Author(s):  
Mohamad Sukri Mohamad Yusof ◽  
Mohd Hafiz Dzarfan Othman ◽  
Azeman Mustafa ◽  
Mukhlis Abdul Rahman ◽  
Juhana Jaafar ◽  
...  

2014 ◽  
Vol 70 (5) ◽  
Author(s):  
Jamo Usman Hassan ◽  
Mohamad Zaky Noh ◽  
Zainal Arifin Ahmad

The increasing amount of disposed palm oil fuel ash (POFA) from palm oil industries has recently attracted significant attention for an alternative sustainable application. This paper presents the effects of the addition of a treated POFA on porcelain in terms of bending and compressive strength, as well as weight composition. POFA obtained from a palm oil mill was treated via sieving, grinding and heating at a temperature of 600°C for 90 minutes in order to the remove unburnt carbon and to improve the silica content of the POFA. Pellets made with various proportions of porcelain and POFA were fabricated and sintered at a temperature of 1200°C. The results reveal that the maximum bending strength and the compressive strength occurred at 8 wt% addition of POFA, Porcelain containing POFA has about 7% weight reduction compared with normal porcelain.  


2015 ◽  
Vol 2015 ◽  
pp. 1-7
Author(s):  
Reza Hodjati ◽  
Hossein Aslani ◽  
Iman Faridmehr ◽  
A. S. M. Abdul Awal ◽  
Ziba Kazemi

Prepacked aggregate concrete (PAC) is a type of concrete that is placed in two stages where the coarse aggregates are first placed inside the formworks and then the grout is pumped from underneath through a manual pump. Grout properties including density, grout consistency, bleeding, and compressive strength are of great importance in PAC. Such properties could be improved by application of pozzolanic materials like palm oil fuel ash. This paper is aimed at finding the most optimum percentage of POFA replacement by weight of cement. It was concluded that 30% POFA replacement yielded the most optimum results.


Author(s):  
Amun Amri ◽  
Gilang Fathurrahman ◽  
Ahmad Ainun Najib ◽  
Ella Awaltanova ◽  
Aman ◽  
...  

2018 ◽  
Vol 172 ◽  
pp. 1476-1485 ◽  
Author(s):  
Elnaz Khankhaje ◽  
Mahdi Rafieizonooz ◽  
Mohd Razman Salim ◽  
Rawid Khan ◽  
Jahangir Mirza ◽  
...  

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