The Investigation of Mechanical Behaviour of OPEFB Fibre Reinforced Foam Material Concrete to High Speed Impact Loads

摘要

The development of the palm oil industry today is increasing rapidly. The result of the palm oil industry is often a waste of Oil Palm Empty Fruit Bunches (OPEFB). OPEFB can be processed into fibres that can ultimately be used as an engineering material. Concrete foam is one kind of lightweight concrete that uses foam as light aggregate. Concrete foam is made by stirring a mixture of cement, sand and water and the foam that has been created by using a foam generator to create the foam separately. Once the foam is formed and then incorporated into the concrete mixture into the mould. OPEFB fibres are used as reinforcement of lightweight concrete that participated in the mixed grout. The purpose of this study is to obtain the maximum tensile stress in the concrete foam to high-speed impact. The mechanical strength of the material is to impact loads obtained by 2 gage testing method by using an air gun compressor machine. Highspeed impact the test results obtained by the average tensile stress is 4.54MPa at a distance of 50mm impact and pressure 0.3MPa. This indicates that the concrete foam reinforced OPEFB fibres is more effective to absorb the impact loads lighter than the brick found in the market.