PERILAKU PELAT FERROFOAM CONCRETE DENGAN DAN TANPA POZOLAN AKIBAT BEBAN IMPACT

Abstract

Non-structural constructions are prone to damage due to impact loads. One of the efforts to overcome this problem is by using ferrocement which is able to provide good shock resistance. The ferrocement matrix can innovate using lightweight concrete which has been widely used, one of which uses foam which is known as ferrofoam concrete. The purpose of this study was to observe the impact load capacity on ferrofoam concrete with Pozolan sand and without Pozolan sand so that it can be used in constructions with a high level of shock resistance. A total of 4 plate specimens having a cross-sectional dimension of 400 mm with a thickness of 40 mm were used and 4 layers of wiremesh were assigned. The difference of SG 1200 kg / m³, 1400 kg / m³ and 1600 kg / m³ was taken into consideration with FAS 0.4 and the addition of 10% pozolan sand was determined. The impact load test is applied to the plate by dropping an iron ball of 3 kg from a height of 1 m in the center of the plate. Determination of impact damage is indicated by the energy absorption due to initial crack to crack collapse and deflection during the impact event. The results show that the performance of ferrofoam with pozolan at SG 1.4 is better than SG 1.6, SG 1.2 and SG 1.4 without pozolan in absorbing energy due to impact loads.