THERMAL AND MECHANICAL PROPERTIES OF PREPACKED CONCRETE CONTAINING PALM OIL FUEL ASH
A project report submitted in partial fulfilment of the requirements for the award of the degree of Master of Engineering (Civil-Structure)
Faculty of Civil Engineering Universiti Teknologi Malaysia
To my Beloved Wife
First and foremost I wish to glorify almighty ALLAH the most gracious the most merciful by the saying of ALLHAMDULLILAHI RABILALIMIN, for benefit of wisdom and power he has provided without expecting anything in return. These provisions of Allah (SW) have made it possible to come this long in academic pursuit.
I would like to express my sincere thanks to my advisor Assoc. Prof. Dr. A.S.M. Abdul Awal for his motivation, inspiration, encouragement, and unstinted guidance. The trust, patients, great insight, modesty and friendly personality demonstrated by him have always been my source of inspiration. I also extend my thanks to Prof. Dr. Mohammd Ismail, Dr. Mohd Yunus Ishak, and Dr. Abdullah Zawawi Awang for serving as my thesis committee and providing critical review on my thesis.
The author is greatly indebted to Faculty of Civil Engineering (FKA) for the support and facilities provided to carry out the experimental work. Same goes to the academic and non-academic staff of the faculty for their support, assistance and friendly treatment that facilitated the work. I would also like to acknowledge the University Technology Malaysia
Manger Mr. Nawawi Mohd
Salleh Staffs for his help in my experiments.
I earnestly thank my family, especially to my sickly wife Shahnaz Ghafarzadeh who is always supportive to my study and work. I need to thank my kindly father and my lovely son Shahin for their love, support and patience during the development of this work. This work is also for my ever-beloved mother in heaven.
This research work outlines thermal and mechanical properties of prepacked concrete containing Palm Oil Fuel Ash (POFA). Prepacked aggregate concrete (PAC) is a special kind of concrete which is produced by first placing the coarse aggregates inside the molds followed by injection of grout by using pump or gravity method. The grout consists of sand, cement and water plus chemical and mineral admixtures. POFA is a mineral admixture which can be used as a supplementary cementitious material. This study determines the heat of hydration, heat transfer and mechanical properties of PAC with POFA replaced in different percentages of 0%, 10%, 20% and 30% by weight of cement. Along with thermal properties, properties of grout and strength of concrete were also investigated. The result obtained in this study demonstrated that the partial replacement of cement by POFA is advantageous and has very good potential to control the heat of hydration in prepacked concrete.
Kerja penyelidikan ini menggariskan sifat haba oleh konkrit prepacked yang mengandungi Palm Oil Fuel Ash (POFA). Konkrit agregat Prepacked (PAC) adalah sejenis konkrit khas yang dihasilkan dengan meletakkan agregat kasar terlebih dahulu ke dalam acuan diikuti dengan suntikan grout dengan menggunakan pam atau kaedah graviti. Grout terdiri daripada pasir, simen dan air serta bahan tambah kimia dan mineral. POFA adalah bahan tambah mineral yang boleh digunakan sebagai bahan gantian simen. Kajian ini menentukan haba penghidratan dan haba pemindahan oleh PAC dengan POFA digantikan dalam peratusan yang berbeza 0%, 10%, 20% dan 30% mengikut berat simen. Bersama-sama dengan sifat haba, sifat grout dan kekuatan konkrit juga telah disiasat. Keputusan yang diperolehi dalam kajian ini menunjukkan bahawa gantian separa simen oleh POFA adalah berfaedah dan mempunyai potensi yang sangat baik untuk mengawal haba penghidratan dalam konkrit prepacked.