Rutting is one of the most important distresses in asphalt pavements due to its frequency. Rutting or channeling, could be classified in three types: 1) mechanical deformation (rutting in subgrade or base), 2) plastic flow (unstable asphalt layer), and 3) wheel path consolidation. The plastic flow of bituminous mixture depends on many factors; one of this is the type of asphalt used in the mixt...

Permeability of an asphalt pavement is one of the most important parameters that have a direct influence on its design life. It is an intrinsic property that relates the average fluid velocity to a constant pressure gradient; however, the external pressures on a saturated pavement pore structure are often dynamic due to the repeated tire loading in the field. A dynamic permeability constant, th...

This chapter describes the methodology used in EPA’s Waste Reduction Model (WARM) to estimate streamlined life‐cycle greenhouse gas (GHG) emission factors for asphalt shingles beginning at the waste generation reference point. The WARM GHG emission factors are used to compare the net emissions associated with asphalt shingles in the following four waste management alternatives: source reduction...

Asphalt (cheap and available in huge amount in Jordan) was converted into activated carbon powder by chemical treatment with sulphuric and nitric acids at 450 8C. The final product was characterized and found effective as adsorbent material. Its cation exchange capacity reaches 191.2 meq/100-g carbons when treated with 30 wt% acid/asphalt ratio without airflow rate injection and 208 meq/100-g c...

The objective of this study is to test the hypothesis that titanium dioxide (TiO2) can function as a photocatalytic compound when used in the preparation of warm-mix asphalt (WMA). The proposed asphalt mixture would combine the benefits of WMA such as reduced energy consumption and emission during production with the photocatalytic properties of TiO2 to trap and degrade organic and inorganic pa...

Asbuton is a natural asphalt material that has greater resilience and elasticity compared to extraction asphalt. When exposed the sun rain, asbuton strong solid nature, texture also elastic so it less likely crack. One of wastes continues be used in field road pavement plastic waste this research, which type polyethylene terephthalate (PET). A lot generated every year but little can used. This ...

In this paper, the effect of reclaimed rubber modification on the rheological characteristics of asphalt binders is studied. Reclaimed rubber with the extent of 12, 16 and 20 is added to the neat asphalt binder and then shear complex modulus is obtained for neat and modified asphalt binder via Dynamic Shear Rheometer (DSR) test. Using Christensen-Anderson- Marasteanu (CAM) model, master curves ...

Granite is very widely distributed in the world, but granite an acidic aggregate with poor adhesion to asphalt. In untreated asphalt mixtures, pavement water damage and loose disease are more prominent, affecting service life of level. Enhancing road performance mixture generally improves properties granite. Qingchuan rock asphalt, anti-stripping agent KH5, aliphatic amine AJ-1 two groups compo...