APPLICATION OF SCHEFFE’S MODEL IN COMPRESSIVE STRENGTH OPTIMISATION OF CONCRETE USING RICE HUSK ASH AS PARTIAL REPLACEMENT OF CEMENT
- Project Research
- 1-5 Chapters
- Abstract : Available
- Table of Content: Available
- Reference Style: APA
- Recommended for : Student Researchers
- NGN 3000
ABSTRACT
This study investigates the economic application of scheffe’s model in compressive strength optimisation of rice husk ash-cement concrete. Physical properties of the aggregates such as specific gravity, bulk density and sieve analysis were determined. Specific gravities of fine and coarse aggregates were 2.64 and 2.66 respectively. The bulk densities were 1745kg/m3 and 1660kg/m3 respectively. From the sieve analysis test, the sand belonged to zone 2 and well graded with coefficient of gradation of 1.04. Ninety 150mm x150mm x 150mm cube specimens were produced for the compressive strength test. Model was fitted to data obtained on the compressive strength and mathematical model was developed based on Scheffe’s model. The formulated model was tested for adequacy at 95% level of confidence using t-statistic and was found to be adequate. The compressive strength of concrete was observed to decrease with increase in the percentage replacement of cement with rice husk ash. The reduced value of the compressive strength may be due to lower specific gravity value of rice husk ash compared to that of cement. The blending of the two materials caused a reduction in strength value of the end product since specific gravity is strength related. The reduced compressive strength value may also be due to the fact that rice husk ash has less binding properties compared to cement. After 28 days of water curing, the concrete gave an average optimum compressive strength value of 22.84N/mm2 corresponding to a mix proportion of 0.95, 0.05, 1, 2 (cement, rice husk ash, sand, granite) at a water-cement ratio of 0.4.This compressive strength value obtained at 5% replacement is within the recommended value required for plain concrete works, lean concrete, simple foundations, masonry walls and other simple construction works in ow-cost housing constructions.
Related Project Materials
THE ROLE OF MARKETING IN THE CONSOLIDATED BANKING SECTOR (A case study of Union Bank of Nigeria Plc, Kaduna)
ABSTRACT
This project is undertaken to observe the role of marketing in the consolidated banking sector. Kotler defi...
AN ASSESSMENT OF RURAL WATER SUPPLY FACILITIES AND ITS MAINTENANCE MANAGEMENT IN THE BUILSA DISTRICT, GHANA
BACKGROUND OF THE STUDY
The availability of clean and sufficient water supplies for household and indus...
AN EXAMINATION OF SLANGS USAGE AMONG UNDERGRADUATE
BACKGROUND OF THE STUDY
It is possible to describe language as a method of communication, a platform fo...
INCOME INEQUALITY, POVERTY ALLEVIATION AND ECONOMIC GROWTH IN NIGERIA (1970-2020)
ABSTRACT
This study examined the relationship between income inequality, poverty and economic growth. It also analyzed...
THE EFFECT OF EMPLOYEE MOTIVATION ON ORGANIZATIONAL PRODUCTIVITY
ABSTRACT
This study was carried out to examine the effect of employee motivation on organizational productivity in Verit...
THE ROLE OF BUDGETING IN ACHIEVING FINANCIAL GOALS
THE ROLE OF BUDGETING IN ACHIEVING FINANCIAL GOALS
The objectives of this research are to: (1) analyze the role of budgeting in achieving...
AN ASSESSMENT OF FUND ACCOUNTING FOR ENDOWMENTS AND FOUNDATIONS
Abstract: AN ASSESSMENT OF FUND ACCOUNTING FOR ENDOWMENTS AND FOUNDATIONS
The study aims to: (1) analyze the unique accounting requiremen...
USE OF SOCIAL MEDIA FOR SHAPING PUBLIC OPINION DURING THE END BAD GOVERNANCE PROTEST IN NIGERIA (A CASE STUDY OF YOUTHS IN RAYFIELD, JOS, PLATEAU)
Background of the Study
The role of social media in shaping public opinion has increas...
DESIGN AND IMPLEMENTATION OF AN ONLINE MEDICAL DIAGNOSIS AND CONSULTANCY SYSTEM
GENERAL INTRODUCTION
Medical establishments like hospitals, rehabilitation centers, health-saloons etc. are seen as figu...
THE IMPACT OF COST ACCOUNTING FOR NON-PROFIT ORGANIZATIONS
Abstract: THE IMPACT OF COST ACCOUNTING FOR NON-PROFIT ORGANIZATIONS
This study investigates the impact of cost accounting on the financi...
