TENSILE PROPERTIES OF FIBERGLASS AS REINFORCEMENT OF LOW-COST RUBBER BASE ISOLATOR FOR SMALL HOUSES

Indonesia is one of the countries that has a very high seismic intensity. To meet the standardization of the building design, several studies were conducted, including the use of base isolation in residential buildings. The base isolator consists of several layers of rubber and steel or lamination fibers which function to increase the vertical stiffness of the isolator. Some has managed to use lamination fiber to make isolator costs cheaper. This research uses fiberglass type net and woven roving types WR4 and WR6. Fiberglass is modeled according to the ASTM standard dogbone. Fiberglass is tested as a standard matrix and is a composite. As a composite, the first type is combined with 2504H Eternal resins and mepoxe catalyst, and second with adhesive lord chemlok. The effect of curing on a temperature of 150 °C was observed according to the conditions of making Low-Cost Rubber Base Isolation (LCRBI) on the printing machine. The result, fiberglass type Net matrix has a higher tensile strength compared to other materials. For fiberglass net matrix composite has increased tensile strength in the oven for 1 hour and returns to the oven for 2 hours at 150 °C. While the composites of the WR4 and WR6 matrix materials have tensile strengths below 500 MPa and have a relatively small increase and decrease in value. Net type fiberglass is suitable to be used as reinforcement on low-cost rubber base isolation for residential areas, where with a small service load from the house it is needed a base isolator that is not too stiff (optimal elastic). In addition, the fiberglass type net has a hollow shape, allowing the layer between the rubbers to be more perfect for perfect attachment