Sustainable Waste Management: Developing Low Cost Paver Blocks Using Pozzolanic Properties

Chapter 2

Abstract
This study examines the environmental concerns linked to
conventional concrete production by exploring the feasibility of
utilizing Saw Dust Ash (SDA) as a partial replacement for cement in
the manufacture of concrete paver blocks. Although concrete
continues to be the most widely used construction material
worldwide, its cement component is a major contributor to carbon
dioxide (CO2) emissions and the depletion of natural resources. Saw
dust ash, produced through the controlled combustion of sawmill
waste, possesses silica-rich pozzolanic characteristics that make it a
potential supplementary cementitious material. The incorporation of
this agro-industrial byproduct into concrete not only supports
sustainable construction practices but also helps address waste
disposal problems associated with sawmill residues. Furthermore,
the use of SDA has the potential to reduce the environmental
footprint of construction materials while maintaining the required
strength and durability of concrete paver blocks.
Keywords: Sawdust Ash; Sustainable Construction; Concrete Paver
Blocks; Cement Replacement; Waste Management;