Low Cost Construction Through The Use Of Wood Ash From Bread Bakery As Partial Replacement For Cement In Concrete

Abstract

The purpose of this project is to minimize construction cost by replacing cement with wood ash as partial replacement for ordinary Portland cement in concrete. Provision of affordable housing especially for low-income earners, which forms the majority of the population, continues to be elusive in the nations of world. The major reason given for this is the high cost of building and construction materials. Concrete and concrete products constitute the majorbuilding construction materials. However, cement which is the main binder in concrete production has been identified as the major contributor to increasing high cost of construction.This project is present the results of investigation conducted to assess the structural suitability and adequacy, as well as affordability of using wood ash as partial replacement of cement in the production of concrete structural works for low-cost building and construction purposes.The workability and compressive strength of the concrete was determined. Wood ash was replacing 5% - 20% by weight of the cement in concrete. Concrete with no wood ash serves as the control. The mix ratio used was 1:2:4 with water to binder ratio maintain at 0.5. The Compressive strength was determined at curing ages 7 and 14, days. The compressive testconduct for 7 and 14 days curing age was determined by single sample spacemen for each mix design. The strength value was a single specimen.