Applications of Compliance to Cost Ratio (C-CR) Analysis in the Determination of Optimum Mix of Insulating Bricks in Masonry

Davies Oladayo Folorunso,Abayomi Adewale Akinwande

doi:10.4236/jmmce.2021.92010

Abstract

The scarcity of housing increases as population continues to rise all over the world. Despite government efforts at providing houses, yearly demand keeps on exceeding available houses and hence the hike in rent, the cost of erecting houses and the cost of building materials. This ultimately calls for a decisive solution. This study therefore applied compliance to cost ratio (C-CR) analysis in evaluating the optimum properties of fired ceramic bricks. The optimum mix proportions of waste glass (WG) and wood saw dust (WSD) in fired bricks, that will be suitable for housing constructions were hence determined. Fired clay brick samples which contained varied proportions of WG and WSD were examined for physical, mechanical and thermal properties in line with standard procedures. The results were compared with existing standards and property evaluation index, compliance level and C-CR were applied in analyzing the results obtained. It was observed that with increasing WG content, compliance level increased. Also, cost ratio and experimental cost of each brick sample trended upward. Sample with mix proportion; 20 wt% WG, 5 wt% WSD and 75 wt% clay had compliance level of 94% and C-CR index of 7.81, hence chosen as optimum mix proportion for masonry bricks.

Highlights

Housing and shelter remain very important needs of man
The optimum mix proportions of waste glass (WG) and wood saw dust (WSD) in fired bricks, that will be suitable for housing constructions were determined
The increasing proportions of additives led to reduction in the values of apparent porosity, water absorption, water absorption capacity, initial suction rate, linear shrinkage, weight loss and wear depth while there was an uptrend in bulk density, hardness, compressive strength, flexural strength, and thermal conductivity

Summary

Introduction

Housing and shelter remain very important needs of man. Despite government interventions in providing houses, yearly demand keeps on exceeding available houses [1] [2] [3]. Migration from rural areas to cities has led to population explosion in the cities, leading to soaring demands for few houses available [4] [5]. Since demand for houses is more than the available houses, rent keeps going up and remains unaffordable for the common man. Housing provision in rural areas can help reduce migration from rural areas to cities and this in turn will lower the pressure on basic amenities in the urban areas [4] [6]

Methods

Results

Conclusion