Noise transmission between HDB residential units is a recurrent feedback. Noise is pointed out as a key factor which residents dislike about the HDB living environment. In most instances, residents’ perceived noise is transmitted from the unit’s floor slab directly above known as “Structural Borne” (floor slab) impact noise as compared to unit’s walls next door, “Air borne” (party wall). Examples of structural borne noise impact noise are dropping of objects, dragging of furniture and footstep from the residential units above.
Studies have indicated that Structural borne impact noise insulation performance is an important area of concern for high-rise living. The current impact transmission performance for HDB typical 150mm (controlled) thick floor slab is 71 Decibel (dB). A recommended approach to enhance the acoustic performance of the floor slab is to explore the use of alternative solution through material research.
Over the past decade, no significant improvement on materials used in the construction of HDB residential floor slabs has particularly reduced the impact noise transmitted between floors of units. Hence, there is a need to conduct a research to develop an alternative structural floor slab design mix/material to enhance the acoustic performance of the floor. This research will also be in line with HDB’s continuous efforts to strive to provide all HDB residents with a better HDB living environment.