Joint use of construction waste (CW) and sugarcane bagasse ash sand (SBAS) in concrete

• Concrete made with SBAS and CW achieved 93% of the resistance of reference concrete.
• The use of 30% or 50% of CW does not affect the compressive strength of the concrete.
• Concrete with 30% of SBAS presented the same compressive strength of the reference.

In this study, the properties of concrete produced with construction waste (CW) and sugarcane bagasse ash sand (SBAS) were investigated. CW and SBAS were used to partially replace basalt stone and quartz sand, respectively. The compressive strength, modulus of elasticity, void ratio, dry bulk density, water absorption and the carbonation depth of concrete produced with different contents of these wastes were determined. Samples produced with the joint use of CW and SBAS achieved 93% of the compressive strength of the reference concrete (without waste). It is worth mentioning that this study presents pioneering results for the joint use of SBAS and CW in concrete for use in construction.