Asphalt binder ageing alters its chemical and physical properties in a manner to make it brittle more susceptible thermal fatigue cracking. The rate of asphalt binders depends on ...

The influence of polymer/nanocomposites (Acrylete-Styrene-Acrylonitrile (ASA)/ Nanosilica (Si)) asphalt binder aging and performance characteristics was investigated. ASA used at 5% while nanosilcia blended in 3, 5 7% concentrations by the weight asphalt. Temperature sensitivity, resistance viscoelastic properties binders were evaluated conducting physical dynamic shear rheometer (DSR) testing ...

Waste cooking oil (WCO), in many cases, can rejuvenate aged asphalt and restore its properties. However, the influence of WCO qualities on rejuvenation behaviors of aged asphalt has not been investigated in detail. The objective of this paper was to evaluate the effects of WCO viscosity and acid value on the basic, rheological, and chemical properties of a typical rejuvenated asphalt. Penetrati...

Fatigue cracking is an essential problem of asphalt concrete that contributes to pavement damage. Although stone matrix asphalt (SMA) has significantly provided resistance to rutting failure, its resistance to fatigue failure is yet to be fully addressed. The aim of this study is to evaluate the effect of crumb rubber modifier (CRM) on stiffness and fatigue properties of SMA mixtures at optimum...

Using nano-technology materials in the asphalt pavement industry is new compared with Portland cement concrete. The main objective of this study is to investigate the effects of nano-silica modification on some properties of a penetration grade asphalt cement and a typical asphalt concrete. 60/70 penetration grade bitumen was modified with different percentages of nano-silica (i.e. 1, 3 and 5%,...

The intermediate-temperature performance of extracted asphalt binders (EABs) is altered when recycled shingles (RAS) and/or reclaimed pavement (RAP) are included in mixes. This happened as a result the RAP’s aged binder and RAS’s oxidized air-blown asphalt. Thus, rheological properties EABs from field cores were examined at intermediate temperatures. fatigue life Superpave cracking parameter am...

Issues like limitation of natural resources aggregates, global warming, need for eco-friendly, cost-effective, and high performance durable asphalt mixture, have made the Reclaimed Asphalt Pavements Warm Mix (RAP-WMA) Steel Slag (SS-WMA) interesting substitutions conventional Hot mixtures. Furthermore, presence moisture initiates accelerates deterioration both these In this way, response RAP-WM...

This paper presents the effects of different amounts of reclaimed asphalt on fatigue life of asphalt mixtures. Central composite method was used to design of experiments based on response surface method (RSM). Binder type (Pen 60/70 and Pen 85/100), reclaimed asphalt pavement (RAP) content (25, 50 and 75%) and loading strain (150, 250 and 350 micro strain) were selected as independent variables...

Fatigue characteristics of asphalt binder have an important role in asphalt mix resistance against cracking. Viscoelastic Continuum Damage (VECD) analysis of asphalt binders has been successfully used in highway research works in order to predict fatigue behavior of hot mix asphalt (HMA). In this method an intrinsic property of the material, called damage function is obtained which is independe...

This research aims to utilize glycerin pitch waste as an alternative asphalt binder (extender) in Stone Mastic Asphalt (SMA) mixture. Glycerin (GP) is a by-product from crude glycerol refining process the palm oil oleochemical industry. The method was carried out by testing chemical and physical characteristics of GP comparing it pen 60/70, then based on rheology concrete characteristics. ANOVA...