GFRP (i.e. Glass Fiber Reinforced Polymer) Composite Roof Sheet consisting of Matrix (i.e. combination of Resin and Filler) and reinforced by Glass Fiber. The standard polymer matrix that would be used is the 100 parts by weight unsaturated polyester resin, the 40 parts by weight Alumina Filler, and other additives. In this paper, the main thing will be described is the resistance characteristic of the GFRP composite against fire. The first experiment was conducted by changing the Matrix’s Filler by using Silica Mesh 185, Silica Mesh 200, Silica Mesh 255, and White Sand and then the result was compared to the Matrix with Alumina Filler (i.e. the Standard Filler). The experiment results indicated that the Matrix with the tested Fillers at the Horizontal Burning Testing fulfilled the Horizontal Burning Class requirement. However, the results are not better than the Standard Matrix with the burning rate of 13.91 mm/minute. Accordingly, the second experiment would be conducted by changing the Resin by using Halogen Grade Polyester Resin (i.e. Halogenated Unsaturated Polyester Resin) and combined by Antimony. This second experiment was conducted by determine the matrix composition and then the Resin was used as the coating for GFRP material. The Polyester Resin which consisting of Halogenated Unsaturated Polyester Resin added by Alumina Filler and Antimony (Sample S9) has a better resistance to horizontal and vertical burning rate compared than the Standard Material and also has fulfilled ASTM (i.e. American Standard Testing Material) which is 0 mm/minute. Afterwards, the next experiment was surface burning. When the GFRP standard material sample was compared with the GFRP sample S9, it was found that both of them were not perforated. However, the GFRP Standard (no coating) suffered damaged up to the fiber glass. Therefore, the thicker the coating, the more good material in burning rate resistance. |