Utvärdering av nyutvecklat gipsskivesystem.

Sammanfattning: Danogips has introduced tongued and grooved gypsum boards which can be used regardless of the distance between the studs in the framework. The goal of this thesis is to evaluate the material properties of the new gypsum product and compare it to conventional gypsum walls. Literature studies and three different experiments are carried out. The stiffness of the construction is measured by applying a horizontal load to the wall and measuring the deformation at a certain load. The impact resistance of the construction is determined by allowing pendular weights to hit the wall. Shear resistance is the ability of the construction to, by diaphragm action, withstand horizontal loads. The new gypsum board fulfills the demands on stiffness and impact resistance but has significantly lower shear resistance than a conventional gypsum wall. A method of improving the shear capacity of the tongued and grooved boards is to strengthen the glue joints. To gain further insight in the material properties of the tongued and grooved boards in general and diaphragm action in particular, further tests should be carried out with different frameworks, configuration of joints and wall-lengths.