The fabrication of precast slab can be made from wide range of material either neat concrete, foamed concrete or even composite. Until recently, a new interest has been discovered. Instead of wet concrete mixing process in plant, the precast slab can be substituted with fibre cement board or commonly referred as cemboard that meets the specific load requirements with minimum thickness. However, cemboard panel is preferable for lightweight floor system due to its physical strength limitation. Its thickness that relatively small around 15 mm to 25 mm contribute to the drawback and subsequently prohibited the application of cemboard panel as heavyweight floor system. Small specimens are prepared to determine the optimum orientation of bolts and type of bond by analysing the bearing resistance and bond-slip behaviour. It was found that the bearing capacity is governed by polyurethane glue. Meanwhile, the bond-slip behaviour is effectively controlled by the steel bolt. If the steel bolt is solely used as bond mechanism, the bearing capacity will rely on its quantity and capacity and increasing the quantity of steel bolt will eventually lead to the higher value of bearing resistance.

Recently, foamed concrete composite slab has received inclusive attention as sustainable and reliable structural component. The fascination toward lightweight and ductile materials have directed to the application of foamed concrete and corrugated steel deck. The use of these materials is to avoid the weight penalty and subsequently accelerate the construction processes of building. On the other hand, the performance of foamed concrete composite slab as compared with conventional slab was found very promising. Basically, foamed concrete composite slab, as can

For many years, fibre cemboard has been widely used in the construction industry. This material has many advantages, including a long-life span, ease of installation and low maintenance, which can reduce the cost of maintenance. However, due to its limitation of being unable to support heavy loads, it is only suitable for the lightweight floor system. Therefore, the fibre cemboard panel is introduced. Basically, the fibre cemboard panel consists of several layers of fibre cemboard that stack together using a special bond mechanism. This study aims to investigate the flexural capacity and slip displacement of fibre cemboard panels with different bond mechanisms (polyurethane glue, steel bolts and polyurethane glue + steel bolts) and spacings (50 mm, 75 mm, 100 mm, 150 mm, and 200 mm). The specimens were fabricated with a size of 305 mm width, 1220 mm span and 2@16 thickness. The four-point bending test was carried out using Universal Testing Machine (UTM) that yield the force-slip displacement curves.The results of experimental testing indicate that the bond mechanism has an apparent impact on the flexural capacity and slip displacement. The fibre cemboard panels bonded by steel bolts have the best performance. Meanwhile, the spacing was found to control the slip displacement the most than the flexural capacity. Close distance of spacing may increase the stiffness that appreciably contributes to better performance. The optimum spacing for the polyurethane glue is 50 mm, while the specimens bonded by steel bolts and polyurethane glue + steel bolts should have 75 mm and100 mm spacings. The polyurethane glue can hold the stress concentration before the detachment. When polyurethane glue fails, the steel bolts resume the function to resist the slip displacement until the rapture.

Lightweight composite deck is widely used as floor system due to the advantage of minimum weight as well as to speedy the construction process. There are numerous investigations on the structural behaviour of lightweight composite deck, but its reliability and understanding on dynamic serviceability remain ambiguous. Therefore, this study intents to numerically investigate the dynamic serviceability of lightweight composite deck as floor system. The lightweight composite deck with dimension of 2900 mm span and 900 mm was modelled in STAAD.Pro. The thickness of lightweight composite deck varied from 100 mm to 225 mm. The isotropic equivalent plate model and effective homogenous criterion were adopted for the geometry and material properties. Dynamic serviceability in term of natural frequency and displacement were analysed in corresponds to the thickness of lightweight composite deck. It is noticeable that by increasing the thickness led to the improvement in the natural frequency. In contrast, the displacement become smaller as the thickness become larger. It was identified that only the lightweight composite deck with thickness 200 mm and 225 mm comply the allowable limit.