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Development of lightweight foamed concrete using palm oil fuel ash as supplementary binder

Development of lightweight foamed concrete using palm oil fuel ash as supplementary binder / Tee Denon
Abu sisa kelapa sawit (POFA) yang merupakan hasil sampingan daripada industri minyak kelapa sawit telah menyumbang kepada masalah alam sekitar. Penyelidikan telah dijalankan dengan menggunakan POFA sebagai bahan pengganti separa simen. Konkrit berbusa merupakan konkrit yang ringan dan terdiri daripada campuran pasir, air, simen dan lompang udara di dalam struktur konkrit. Tujuan kajian ini adalah untuk mengkaji pembangunan konkrit berbusa yang menggunakan POFA sebagai bahan penggantian separa simen. Sejumlah 6 bancuhan konkrit telah disediakan dalam kajian ini, iaitu OPC 1, OPC 2, OPC 3, POFA 10, POFA 20, dan POFA 30. OPC 1, OPC 2 dan OPC 3 masing-masing mempunyai ketumpatan 1000, 1400 dan 1700 kg/m3. POFA 10, POFA 20 dan POFA 30 adalah campuran yang mengunakan POFA sebagai bahan penggantian separa simen masing-masing dengan peratusan POFA sebanyak 10%, 20% dan 30%. Terdapat 2 cara untuk menganalisis perbandingan keputusan dalam kajian ini. Cara pertama merangkumi peratusan penggantian POFA dengan simen, dan cara kedua adalah perbandingan kategori ketumpatan yang sama. Dalam mod peratusan penggantian POFA dengan simen, penggunaan POFA di dalam konkrit berbusa mengakibatkan peningkatan ketumpatan kering, bacaan UPV, kekuatan mampatan, dan kekuatan lenturan, tetapi mengurangkan jumlah keliangan dan kadar serapan air. Manakala dalam kategori ketumpatan yang sama, spesimen yang hanya terdiri daripada OPC mempunyai kelebihan kekuatan mampatan, kekuatan lenturan dan bacaan UPV berbanding dengan spesimen yang terdiri daripada POFA sebagai bahan penggantian separa simen. _______________________________________________________________________________________________________ Palm oil fuel ash (POFA), a by-product from the palm oil industry which is nonenvironmentally friendly waste product has contributed towards environmental problem. Never ending researches have been conducted to fully utilize POFA as a supplementary binder in concrete engineering field. Lightweight foamed concrete which made up of a mixture of fine aggregates, ordinary Portland cement, water and incorporation of uniformly distributed air voids into the fresh concrete. This research is to study the development of lightweight foamed concrete using POFA as a supplementary binder. A total of 6 mixes have been prepared in this study, which consist of OPC1, OPC 2, OPC 3, POFA 10, POFA 20 and POFA 30. OPC 1, 2 and 3 are the control mixes with density of 1000, 1400 and 1700 kg/m3, respectively. POFA 10, 20 and 30 are the mixes with POFA replacement level of 10%, 20% and 30% respectively. There are 2 modes of comparison and results analysis in this study which included the percentage of POFA replacement and the same density category mode. In the mode of percentage of POFA replacement, the introduction of POFA in the foamed concrete gave a result of increasing dry density, UPV readings, compressive strength, flexural strength but reducing water absorption and porosity in the foamed concrete. While in the same density category mode, specimen with OPC only has a better compressive strength, flexural strength and UPV readings compared to the specimen with POFA as partial OPC replacement.
Contributor(s):
Tee Denon - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875000535
Language:
English
Subject Keywords:
(POFA); nonenvironmentally; waste
First presented to the public:
6/1/2014
Original Publication Date:
12/26/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 100
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-01-06 17:13:41.612
Submitter:
Mohd Jasnizam Mohd Salleh

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