Rehabilitation of concrete one-way slabs using precast prestressed concrete prisms

The rehabilitation of structures is a complex process that involves many considerations. This paper presents results feasibility study on the use precast prestressed concrete prisms (PCPs) as near-surface mounted reinforcement for cracked one-way slabs. PCPs were cast with high-strength and concentrically by one 9 mm diameter stress-relieved seven-wire steel strand. Six identical slabs length 3000 tested. They loaded until cracking, then fully unloaded rehabilitated four before loading them to failure. Deflected profiles crack widths after compared in this research. method reduced magnitude deflection width samples. cracks induced first phase PCP appeared closed five times original cracking loads