91proÊÓƵ

A Collaborative Project Between 91proÊÓƵ and Sin Guan Teck Pte Ltd

Wood waste is treated as general waste currently, resulting in high disposal costs and environmental strain. Recognizing this, the project aimed to close the waste loop through a circular economy model — transforming waste into resource-efficient, value-added products like wood-cement composites and particleboards for use in partition walls, façades, and furniture. Two group of students from 91proÊÓƵ’s School of Architecture & the Built Environment (ABE) conducted extensive trials to replace conventional sand with sieved sawdust in cement mortars. After optimizing the particle size using sieve analysis and Fuller-Thompson gradation theory, the team developed two mix variations: one using as-received (AR) sawdust and the other using optimized gradation (OG) sawdust. The project also explored the fabrication of particleboards from sieved wood waste mixed with resin. Using hot-press technology, samples of about 6–8 mm thickness were produced with good surface finish and structural integrity. By transforming wood waste into useful materials, the project presents a model for sustainable construction practices. This aligns with national goals for waste reduction and greener buildings. Not only does this reduce landfill burden, but it also creates cost-saving opportunities for contractors through material reuse. The success of this project shows promising potential for the wider adoption across the built environment industry. With further optimization and scaling, recycled wood-based composites and boards could become mainstream in eco-conscious design and construction. This project showcases how educational institutions and industry partnerships can co-create impactful solutions for a more sustainable future.

Project supervisor: Dr Tao Nengfu

Email: TAO_Nengfu@sp.edu.sg

Fig. 1. Project team members and their supervisors.

Fig. 2. Study the use of wood waste in cement as a sustainable construction material.