The study deliberates on the incorporation of Microwave Incinerated Rice Husk Ash (MIRHA) as a ce... more The study deliberates on the incorporation of Microwave Incinerated Rice Husk Ash (MIRHA) as a cement replacement material to produce foamed concrete. The mixes incorporating 0%, 5%, 10% and 15% MIRHA were prepared. The optimal mix design of MIRHA based on the mechanical properties is established. During this study, the research on RHA as cement replacement material is conducted. Besides, analysis of concretes characteristics are done for hardened concrete while the workability test is done for fresh concrete. This research adopts Taguchi approach with an Ll6 (45) to reduce the numbers of experiment. The optimal mix design properties are determined by using analysis of variance (ANOVA) method. The results obtained from this research shows that by adding MIRHA into foamed concrete, early strength can be developed within 3 to 7 days because it has fasten the reaction in the concrete. Beside that, as the optimal MIRHA that was found in this research is 5%, the data shows that the target strength of foam concrete according to load bearing which is 17 Mpa has been achieved. First and foremost, praised be to Allah, the Most Merciful and the Most Beneficent, who grants the author to complete her research within the given time. The author would like to take the opportunity to express her sincere thanks to her supervisor Associate Professor, Ir. Dr. Muhd Fadhil Nuruddin, for his outstanding guidance and support throughout the duration of the study. It is a great honour to work and learn under his supervision. The author would also like to thank Mr Ridho Bayuaji for his advice and assistance especially in doing laboratory works. Special thanks are given to laboratory technicians; Mr.
The study deliberates on the incorporation of Microwave Incinerated Rice Husk Ash (MIRHA) as a ce... more The study deliberates on the incorporation of Microwave Incinerated Rice Husk Ash (MIRHA) as a cement replacement material to produce foamed concrete. The mixes incorporating 0%, 5%, 10% and 15% MIRHA were prepared. The optimal mix design of MIRHA based on the mechanical properties is established. During this study, the research on RHA as cement replacement material is conducted. Besides, analysis of concretes characteristics are done for hardened concrete while the workability test is done for fresh concrete. This research adopts Taguchi approach with an Ll6 (45) to reduce the numbers of experiment. The optimal mix design properties are determined by using analysis of variance (ANOVA) method. The results obtained from this research shows that by adding MIRHA into foamed concrete, early strength can be developed within 3 to 7 days because it has fasten the reaction in the concrete. Beside that, as the optimal MIRHA that was found in this research is 5%, the data shows that the targe...
The basic contribution of foamed concrete to the field of concrete technology is its ability to c... more The basic contribution of foamed concrete to the field of concrete technology is its ability to control density over a wide range. The fresh density of lightweight foamed concrete (LWFC) typically ranges from approximately 320 to 1920 kg/m³. The density control is achieved by adding a calculated amount of foam to slurry of water and cement, with or without the addition of sand or aggregate. Nevertheless research on foamed concrete containing cement replacement material is not widely established and its effect on density and strength is not well understood. This paper deliberates on the performance of foamed concrete containing cement replacement material namely Microwave Incinerated Rice Husk Ash (MIRHA). Mixes incorporating 0%, 5%, 10% and 15% MIRHA were prepared. The optimal mix design of MIRHA based on compressive strength and porosity was established. Taguchi method with L16 (4 5 ) orthogonal array was adopted to determine the best possible mix design and the number of experimen...
The basic contribution of foamed concrete to the field of concrete technology is its ability to c... more The basic contribution of foamed concrete to the field of concrete technology is its ability to control density over a wide range. The fresh density of lightweight foamed concrete (LWFC) typically ranges from approximately 320 to 1920 kg/m³. The density control is achieved by adding a calculated amount of foam to slurry of water and cement, with or without the addition of sand or aggregate. Nevertheless research on foamed concrete containing cement replacement material is not widely established and its effect on density and strength is not well understood. This paper deliberates on the performance of foamed concrete containing cement replacement material namely Microwave Incinerated Rice Husk Ash (MIRHA). Mixes incorporating 0%, 5%, 10% and 15% MIRHA were prepared. The optimal mix design of MIRHA based on compressive strength and porosity was established. Taguchi method with L 16 (4 5) orthogonal array was adopted to determine the best possible mix design and the number of experiment and trial mixes to be conducted was minimized. The results obtained from this research shows that by adding MIRHA into foamed concrete, early strength could be developed within 3 to 7 days and the optimal MIRHA replacement level was 5%. It was found that the target strength of MIRHA foamed concrete achieved met the load bearing strength requirement of 17 N/mm 2 .
The study deliberates on the incorporation of Microwave Incinerated Rice Husk Ash (MIRHA) as a ce... more The study deliberates on the incorporation of Microwave Incinerated Rice Husk Ash (MIRHA) as a cement replacement material to produce foamed concrete. The mixes incorporating 0%, 5%, 10% and 15% MIRHA were prepared. The optimal mix design of MIRHA based on the mechanical properties is established. During this study, the research on RHA as cement replacement material is conducted. Besides, analysis of concretes characteristics are done for hardened concrete while the workability test is done for fresh concrete. This research adopts Taguchi approach with an Ll6 (45) to reduce the numbers of experiment. The optimal mix design properties are determined by using analysis of variance (ANOVA) method. The results obtained from this research shows that by adding MIRHA into foamed concrete, early strength can be developed within 3 to 7 days because it has fasten the reaction in the concrete. Beside that, as the optimal MIRHA that was found in this research is 5%, the data shows that the target strength of foam concrete according to load bearing which is 17 Mpa has been achieved. First and foremost, praised be to Allah, the Most Merciful and the Most Beneficent, who grants the author to complete her research within the given time. The author would like to take the opportunity to express her sincere thanks to her supervisor Associate Professor, Ir. Dr. Muhd Fadhil Nuruddin, for his outstanding guidance and support throughout the duration of the study. It is a great honour to work and learn under his supervision. The author would also like to thank Mr Ridho Bayuaji for his advice and assistance especially in doing laboratory works. Special thanks are given to laboratory technicians; Mr.
The study deliberates on the incorporation of Microwave Incinerated Rice Husk Ash (MIRHA) as a ce... more The study deliberates on the incorporation of Microwave Incinerated Rice Husk Ash (MIRHA) as a cement replacement material to produce foamed concrete. The mixes incorporating 0%, 5%, 10% and 15% MIRHA were prepared. The optimal mix design of MIRHA based on the mechanical properties is established. During this study, the research on RHA as cement replacement material is conducted. Besides, analysis of concretes characteristics are done for hardened concrete while the workability test is done for fresh concrete. This research adopts Taguchi approach with an Ll6 (45) to reduce the numbers of experiment. The optimal mix design properties are determined by using analysis of variance (ANOVA) method. The results obtained from this research shows that by adding MIRHA into foamed concrete, early strength can be developed within 3 to 7 days because it has fasten the reaction in the concrete. Beside that, as the optimal MIRHA that was found in this research is 5%, the data shows that the targe...
The basic contribution of foamed concrete to the field of concrete technology is its ability to c... more The basic contribution of foamed concrete to the field of concrete technology is its ability to control density over a wide range. The fresh density of lightweight foamed concrete (LWFC) typically ranges from approximately 320 to 1920 kg/m³. The density control is achieved by adding a calculated amount of foam to slurry of water and cement, with or without the addition of sand or aggregate. Nevertheless research on foamed concrete containing cement replacement material is not widely established and its effect on density and strength is not well understood. This paper deliberates on the performance of foamed concrete containing cement replacement material namely Microwave Incinerated Rice Husk Ash (MIRHA). Mixes incorporating 0%, 5%, 10% and 15% MIRHA were prepared. The optimal mix design of MIRHA based on compressive strength and porosity was established. Taguchi method with L16 (4 5 ) orthogonal array was adopted to determine the best possible mix design and the number of experimen...
The basic contribution of foamed concrete to the field of concrete technology is its ability to c... more The basic contribution of foamed concrete to the field of concrete technology is its ability to control density over a wide range. The fresh density of lightweight foamed concrete (LWFC) typically ranges from approximately 320 to 1920 kg/m³. The density control is achieved by adding a calculated amount of foam to slurry of water and cement, with or without the addition of sand or aggregate. Nevertheless research on foamed concrete containing cement replacement material is not widely established and its effect on density and strength is not well understood. This paper deliberates on the performance of foamed concrete containing cement replacement material namely Microwave Incinerated Rice Husk Ash (MIRHA). Mixes incorporating 0%, 5%, 10% and 15% MIRHA were prepared. The optimal mix design of MIRHA based on compressive strength and porosity was established. Taguchi method with L 16 (4 5) orthogonal array was adopted to determine the best possible mix design and the number of experiment and trial mixes to be conducted was minimized. The results obtained from this research shows that by adding MIRHA into foamed concrete, early strength could be developed within 3 to 7 days and the optimal MIRHA replacement level was 5%. It was found that the target strength of MIRHA foamed concrete achieved met the load bearing strength requirement of 17 N/mm 2 .
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