Recycling construction wastes to fabricate particle boards with admirable flame retardancy, smoke suppression and mechanical performance.

• Value-added & fully utilization of CWs into building materials. • Addition of PA significantly improved the smoke suppression performance of WPBs. • Increasing of PA contributes to excellent integrated performance of WPBs. • Admirable method promoting the value-added & fully utilization of CWs. • Excellent comprehensive performance promoting WPBs application in green buildings. Construction wastes (CWs) were utilized in this work as the feedstock for manufacturing wasted-based particle boards (WPBs). Results revealed that phytic acid (PA), as a natural and sustainable fire retardant, imparts the WPBs excellent flame retardancy and smoke suppression. The hydrogen bonds network formed among PA, waste particles, and adhesive improves the stress transferring of WPBs when subjected to load, thus elevating the modulus of elasticity and inner bonding strength of PA-treated WPBs. We believe that the as-proposed recycling methods promote the value-added utilization of CWs, and it is also beneficial for realizing the recycling of timber architectures. [ABSTRACT FROM AUTHOR]