ABSTRACT
A model of transitional probability matrix for Mechanistic-Empirical Pavement Design was developed with the aim of tarnishing the traditional method obtained from the judgment of an expert panel. The model was developed using fatigue and rutting as the critical factors in pavement failure. Model performance was assessed using first order reliability method (FORM) with the concept of genetic search algorithm developed with Matrix Laboratory(MATLAB). The proposed model allowed the distressed model to be model individually so that immediate measures for correcting deficiencies can readily be identified. The model formulation was followed by applying it into a real data. The data consist of three layered Hot-Mix asphalt (HMA) consisting of 100mm surfacing underlay by 200mm base course, 250mm sub base which is purported to have a life span of 15 years. Result indicate a decrease in system transitional probability of about 3% and 6% for light and heavy traffic considered respectively with age as against the constant homogeneous Markov-chain Matrix. The components probabilities also trends the same. Therefore, the assumption of time-invariance matrix of transitional probability was disregarded. The performance of the original pavement structure (100mm) was compared to 125mm and 150mm surfacing respectively. The result shows that the heavy traffic which are characterized by larger axle load and higher truck percentage has lower transitional probability than the lighter one because of its higher damages on the pavement structures both for the component and system models.
ABSTRACT
The prevalence of hypertension in Sub-Saharan Africa has experienced a tremendous increase due to low awareness, treatment and c...
ABSTRACT
Two simple, sensitive, accurate and extraction-free spectrophotometric methods were developed and described for the determinatio...
Abstract
The emergence of cell phones in Nigeria, a communication enhancing technological device that came with the mill...
ABSTRACT
This study sought to find out the barriers affecting implementation of ...
ABSTRACT
Aim: The aim of this study was to investigate the knowledge, perceptions, and attitudes of male adolescents towards HIV/AIDS in...
ABSTRACT
The research aims to find the relationship between income inequality and economic growth in the Brazilian economy. Economic grow...
ABSTRACT:- This study was carried out to examine the influence of negative classroom behaviour in teachers t...
ABSTRACT
There is need for accurate knowledge of performance, degradation rate and lifespan of photovoltaic (PV) module in every location...
Background of the Study
Owing to the high rate of industri...
ABSTRACT
The fast growing trend of modernization and urbanization in regions around the worldhas its shares of dire consequences, which i...