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Influence of palm oil fuel ash on the properties of self-compacting concrete

Influence of palm oil fuel ash on the properties of self-compacting concrete / Muhammad Saiful Idris

Abstract Pengaruh pelbagai jenis abu kelapa sawit (POFA) sebagai bahan gantian separa simen dalam konkrit terpadat sendiri (SCC) telah dikaji. Tiga jenis POFA yang digunakan ialah POFA hitam (G-POFA), POFA dirawat (T-POFA) dan POFA halus (U-POFA) untuk menggantikan jumlah simen yang telah digunakan. Penggantian adalah sebanyak 20, 40, dan 60% daripada berat simen untuk setiap jenis POFA yang berbeza. Sifat-sifat reologi SCC dan kekuatan mampatan konkrit telah dikaji. Sifat-sifat reologi yang telah dikaji ialah kemampuan pengisian, kemampuan keupayaan melepasi rintangan dan kemampuanrintangan terhadap pengasingan. Keputusan menunjukkan bahawa campuran konkrit dengan penggantian UPOFA mempunyai sifat reologi yang lebih tinggi jika dibandingkan dengan campuran kawalan dan jenis campuran lain. Kekuatan mampatan lebih daripada 45 MPa boleh diperolehi apabila menggunakan penggantian UPOFA. Campuran konkrit bersama UPOFA melepasi semua sifat-sifat reologi dengan jayanya apabila di bandingkan dengan jenis POFA yang lain yang telah digunakan dan juga menyumbang kepada kekuatan mampatan yang lebih tinggi. Ini menunjukkan bahawa penggunaan POFA dalam SCC boleh meningkatkan sifat-sifat reologi dan juga kekuatan berbanding dengan Portland simen biasa. _______________________________________________________________________________________________________ The influence of different type of Palm Oil Fuel Ash (POFA) as the partial cement replacement on the properties of self-compacting concrete (SCC) has been investigate in this study. Three different types of POFA were used namely Ground POFA (G-POFA), Treated POFA (T-POFA) and Ultrafine POFA (U-POFA) to replace the amount cement that had been used. The replacement was 20, 40, and 60% from mass of concrete for each different type of POFA. The rheological properties of SCC and the compressive strength of the concrete were investigated. The rheological properties that were investigated include the filling ability, passing ability and the segregation resistance. The results show that the concrete mix with the replacement of UPOFA have better rheological properties when compared to the control mix and mix containing other type of POFA. The compressive strength of more than 45 MPa can be obtained when using the replacement of UPOFA. UPOFA provide better filling ability, passing ability and segregation resistance ability compare to other types of POFA that had been used and also contribute to higher compressive strength. This indicates that the inclusion of POFA in SCC can improve the rheological properties and also the strength compared to the ordinary Portland cement.

Contributor(s): Muhammad Saiful Idris - Author Primary Item Type: Final Year Project Identifiers: Accession Number : 875005527 Language: English Subject Keywords: influence; (POFA); (SCC) First presented to the public: 6/1/2015 Original Publication Date: 7/24/2020 Previously Published By: Universiti Sains Malaysia Place Of Publication: School of Civil Engineering Citation: Extents: Number of Pages - 67 License Grantor / Date Granted:   / ( View License ) Date Deposited 2020-07-24 09:41:25.872 Submitter: Mohd Jasnizam Mohd Salleh

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