In the effort of productivity management of floor plate formwork method and minimising waste in building projects, the contractor must know the level of productivity of conventional floor plate formwork method and panel floor formwork method. The aim of this research is to explore the strategy of increasing productivity using three objectives.

Purpose / Context - The provision of reticulated sanitation infrastructure has not kept pace with the rapid urbanization, which can be witnessed in Indonesia. In addition, lack of proper sanitation infrastructure treaty led to pollution of groundwater. The most common system used for human ex-creta disposal system in Indonesia is septic tank, which is an...