6 publications
-
Published Subscription
Experimental Assessment of Durability of Asphalt Pavement Surfacing Modified with Fly-Ash Under Moisture SubmergenceBy Enwuso Igwe, Chinonyerem B. Onyekaba, Emmanuel O. Ekwulo
Abstract: The impact of environmental factors such as moisture and temperature cycles together with traffic loads and configurations on pavement combined with the need for improved construction materials have made it pertinent for research into better ways to enhance asphalt pavement properties for better performance. This study adopts an experimental approach using the Marshall Mix design method to investigate the effect of fly-ash in the enhancement of asphalt pavement wearing course …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 6, Issue 2, 2020 · pp. 1–9 Read article →
-
Published Subscription
Improving Durability of Asphalt Pavement Wearing Course Submerged in Water Using Candle Wax as Water Proofing Agent: An Assessment Using RSI, FDI and SDIBy Enwuso Igwe, Daniel A. Nyebuchi
Abstract: Asphalt pavements are designed and constructed to meet mostly stability and durability requirements during its design life. However, durability of asphalt pavements also heavily depends on other physical parameters as good drainage facility apart from having good material mix and structural designs. In the wake of asphalt pavements not supported by good drainage measures it is very likely that these pavements will fail sooner than later. On this basis, the …
Published in International Journal of Concrete Technology · Vol. 3, Issue 2, 2017 · pp. 1–10 Read article →
-
Published Subscription
Thermal Effects on Elastic and Rigidity Modulus of Flexible Pavement Wearing CourseBy Enwuso Igwe, Daniel Azeruibe Nyebuchi
Abstract: Laboratory investigation of flexible pavement was carried out using asphalt concrete samples to simulate the behaviour of actual field conditions of a flexible pavement. The study was carried out in order to ascertain the changes that will result in the elastic and rigidity (shear) modulus of flexible pavement when subjected to increasing temperature conditions (thermal effect). The study became pertinent because mechanistic design of flexible pavement requires as input the …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 3, Issue 2, 2017 · pp. 1–7 Read article →
-
Published Subscription
Susceptibility Behaviour of Asphalt Concretes Under Varying Mix Temperature Conditions: Study on Stability and FlowBy Enwuso Igwe, Daniel Azeruibe Nyebuchi
Abstract: Understanding the behaviour of flexible pavements synonymous with asphalt concretes is one that can be complex due to the make-up of the pavement (asphalt concrete) and the external factors that impedes its performance from production stage to service life. The present study had considered one of the most damaging factors to asphalt concrete – mix temperature; and its effect on some of the mix design properties of asphalt concrete that …
Published in International Journal of Concrete Technology · Vol. 3, Issue 1, 2017 · pp. 1–7 Read article →
-
Published Subscription
Tensile Strain Reduction in Asphalt Concrete Mixtures through Rubberization at the Asphalt Bound – Subgrade Layer InterfaceBy Enwuso Igwe
Abstract: Tensile strains are major contributors in determining the fatigue life of asphalt concrete pavement because they are responsible for fatigue cracking. Therefore, knowledge of strains and their role is of vital importance to the Highway Engineer. However, the focus of the present study was to investigate measures by which these damage contributing factor – “tensile strain” could be reduced at the interface of the asphalt concrete – subgrade layer. The …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 44–53 Read article →
-
Published Subscription
Re-Characterization of Strength Properties of Asphalt Concrete Mixtures Using Non Bituminous Modifier – Candle WaxBy Enwuso Igwe
Abstract: Improving the performance of asphalt concrete mixtures synonymous with flexible pavement has been a major concern in highway engineering. However, design of flexible pavement begins with proper material characterization to ensure that designs are appropriate. It is also pertinent to say that sometimes if not most times the properties of the individual materials that make up the pavement structure falls short of desired expectations. This has led to exploring techniques …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 30–36 Read article →