Impacts of silica modulus on the early strength of alkaline activated ground slag/ultrafine palm oil fuel ash based concrete

2014 ◽  
Vol 48 (3) ◽  
pp. 733-741 ◽  
Author(s):  
Moruf Olalekan Yusuf ◽  
Megat Azmi Megat Johari ◽  
Zainal Arifin Ahmad ◽  
Mohammed Maslehuddin
Keyword(s):  
Palm Oil ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Early Strength ◽  
Oil Fuel

The Effect of Eggshell Powder as an Accelerator for Blended Cement Concrete

2020 ◽  
Vol 17 (2) ◽  
pp. 1032-1036
Author(s):  
Nur Nadhira Abdul Rasid ◽  
Abdul Rahman Mohd. Sam ◽  
Azman Mohamed ◽  
Nor Hasanah Abdul Shukor Lim ◽  
Zaiton Abdul Majid ◽  
...  
Keyword(s):  
Calcium Oxide ◽  
Palm Oil ◽  
Concrete Strength ◽  
Strength Development ◽  
Early Age ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Early Strength ◽  
Oil Fuel ◽  
Silica Oxide

Blended concrete has later strength development with long maturity strength development. An accelerator is thus needed to enhance the early strength development of concrete. This paper shows the combination of ground palm oil fuel ash and eggshell powder that was designed for later and early strength development, respectively. Two types of eggshell powder were utilised in concrete: uncarbonised eggshell powder and decarbonised eggshell powder. The study was initiated with compression test for concrete curing at age 1, 3, 7, and 28 days followed by rapid evaluation test of setting time to investigate the preliminary performance between materials. The results revealed decarbonised eggshell powder as a high accelerator that can improve the early age of concrete strength development. Meanwhile, despite showing the best performance, uncarbonised eggshell powder is a very low accelerator thus not fit the purpose. In conclusion, the combination of ground palm oil fuel ash (rich with silica oxide) and decarbonised eggshell powder (rich with calcium oxide) provided dual function, where ground palm oil fuel ash and decarbonised eggshell powder took later and early strength development, respectively. The combination between silica oxide and calcium oxide in cementitious materials has potential to be utilised to enhance the early age of a blended concrete strength development.

Early Strength Characteristics of Palm Oil Fuel Ash and Metakaolin Blended Geopolymer Mortar

2013 ◽  
Vol 690-693 ◽  
pp. 1045-1048 ◽  
Author(s):  
Mohammad Ismail ◽  
Taliat Ola Yusuf ◽  
Ainul H Noruzman ◽  
I. O. Hassan
Keyword(s):  
Compressive Strength ◽  
Palm Oil ◽  
Water Demand ◽  
Strength Characteristics ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Strength Behavior ◽  
Maximum Compressive Strength ◽  
Early Strength ◽  
Oil Fuel

In this paper, the early strength behavior of Metakaolin and Palm Oil Fuel Ash (POFA) based geopolymer mortar was investigated for the purpose of exploring the utilization of POFA which is a waste material generated from production of palm oil. Geopolymer mortar was prepared by activating metakaolin combined with POFA at 0%, 30%, 40%, 50%, 60%, 70% and 80% replacement levels in NaOH and Na2SiO3 medium. The mortar specimens were tested for compressive strength at 3 and 7days. The maximum compressive strength at 3 and 7days are 65.264MPa and 68.863MPa respectively corresponding to a POFA replacement of 40%. A replacement of 80% POFA to 20% Metakaolin gave compressive strength as high as 26.174MPa and 30.791MPa for 3 and 7 days. It was also discovered that water demand of the system reduced with increase in POFA replacement. It is concluded that POFA addition to metakaolin can improve behavior of Metakaolin and POFA geopolymer system.

Modelling the early strength of alkali-activated cement composites containing palm oil fuel ash

2019 ◽  
Vol 172 (3) ◽  
pp. 133-143 ◽  
Author(s):  
Babatunde Abiodun Salami ◽  
Megat Azmi Megat Johari ◽  
Zainal Arifin Ahmad ◽  
Taoreed Olakunle Owolabi ◽  
Mohammed Maslehuddin ◽  
...  
Keyword(s):  
Palm Oil ◽  
Cement Composites ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Early Strength ◽  
Oil Fuel ◽  
Alkali Activated ◽  
Alkali Activated Cement

Pemanfaatan Limbah Padat Abu Cangkang dan Serat Kelapa Sawit dari Boiler untuk Pembuatan Bata Beton Ringan

2016 ◽  
Vol 9 (2) ◽  
pp. 120-128
Author(s):  
Haspiadi Haspiadi ◽  
Kurniawaty Kurniawaty
Keyword(s):  
Compressive Strength ◽  
Solid Waste ◽  
Palm Oil ◽  
Absorption Capacity ◽  
Water Absorption Capacity ◽  
Palm Oil Fuel Ash ◽  
Foaming Agent ◽  
Fuel Ash ◽  
Palm Oil Mill ◽  
Oil Fuel

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

scholarly journals Sustainable use of polypropylene fibers and palm oil fuel ash in the production of geopolymer concrete

2021 ◽  
Vol 1136 (1) ◽  
pp. 012046
Author(s):  
Bala Gopal Adapala ◽  
Durga Chaitanya Kumar Jagarapu ◽  
Syed Hamim Jeelani ◽  
B. Sarath Chandra Kumar ◽  
Arunakanthi Eluru
Keyword(s):  
Palm Oil ◽  
Sustainable Use ◽  
Polypropylene Fibers ◽  
Geopolymer Concrete ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel

Adsorptive treatment of stabilized landfill leachate using activated palm oil fuel ash (POFA)

2019 ◽  
Author(s):  
Salahaldin M. A. Abuabdou ◽  
Ong Wei Teng ◽  
Mohammed J. K. Bashir ◽  
Ng Choon Aun ◽  
Sumathi Sethupathi
Keyword(s):  
Palm Oil ◽  
Landfill Leachate ◽  
Palm Oil Fuel Ash ◽  
Adsorptive Treatment ◽  
Fuel Ash ◽  
Oil Fuel

Filler effect and pozzolanic reaction of ground palm oil fuel ash

2011 ◽  
Vol 25 (11) ◽  
pp. 4287-4293 ◽  
Author(s):  
Chai Jaturapitakkul ◽  
Jatuphon Tangpagasit ◽  
Sawang Songmue ◽  
Kraiwood Kiattikomol
Keyword(s):  
Palm Oil ◽  
Pozzolanic Reaction ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel
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