Abstract:
Structural Insulated Panels (SIP) is a good material in building and housing construction with the good properties such as heat insulation, load absorption, strength, durability and low construction cost. Due to the lack of research on SIP slabs in Thailand, the flexural performance of SIP slabs with or without GFRP (Glass Fiber Reinforced Polymer) strengthening were studied in this research
In this research, it has to strengthen the GFRP to the mat SIP with the test four samples for two way slab is the size of a full scale SIP wide 1.2 m and 2.0 m with a thickness of 0.10 m and 0.14 m is different and the five sample strength for one way slab, 1.2 m wide and 2.4 m long reinforced and non-reinforced GFRP were tested under uniformly distributed loading till failure.
The test results indicated that, two-way SIP slabs in thickness of 0.10 m could bear load of 225 kg/m2 under service limit, which met the requirements for residential and light commercial buildings. For slab in thickness of 0.14 m, the load bearing capacity increased to 365 kg/m2. And the test results of one way SIP slabs showed that CFRP strengthen SIP slabs can carry more load than that of slabs strengthened GFRP. Pasting GFRP between form core and fiber cement board facing of SIP slabs was a feasible method to improve the flexural performance of SIP panel slabs.