In recent years, various studies have been undertaken on how to use waste materials in civil engineering projects. Among waste materials, waste rubber has been highlighted to be used for different purposes such as reinforcing of soil and making of reinforced slopes. To investigate the properties of granulated rubber-soil mixture and its application in making of slopes behind retaining walls, so...

To investigate the effects of epoxy resin at low content on physical properties, rheological and self-healing properties asphalt, asphalts with contents 2%, 5%, 10%, 20% were prepared. The distribution asphalt (EA) in (ER) was quantitatively studied by fluorescence microscopy (FM) to feasibility preparation process. glass transition temperature analyzed differential thermal analyzer (DSC). char...

As a kind of environmentally friendly material, crumb rubber modified asphalt is widely used in highway engineering to accelerate the consumption end-life tires. The objective this study investigate high-temperature rheological properties composite (CRCM) asphalt. In study, same content and different additives were added prepare CRCM asphalt, including CRCM-SBS, CRCM- Sasobit/BRF, CRCM-RARX. vi...

pavement permanent deformations due to lack of shear strength in mixture are a major reason of rutting. any simple test to determine mixtures resistance to permanent deformation isn’t distinguished in the 1st level of superpave mix design method and prevalent methods for evaluating mixture rut resistance are expensive and time-consuming. two aggregate types, gradations, asphalt cements and fill...

Abstract This study intends to examine the effect of using bio-rejuvenators (BioCS and BitutechRAP) on Reclaimed Asphalt (RA) binder as seen from asphalt stiffness modulus (Sbit) based laboratory testing Dynamic Shear Rheometer (DSR) Frequency Sweep which is compared Sbit resulting analysis Van der Poel nomograph under RTFO (rolling thin film oven) conditions. The comparison was analyzed by loo...

The use of waste materials has been increasingly conceived as a sustainable alternative to conventional in the road construction industry, concerns have arisen from uncontrolled exploitation natural resources recent years. Re-refined acidic sludge (RAS) obtained material—acidic sludge—is an source for bitumen. This study’s primary purpose is evaluate resistance warm mix asphalt (WMA) mixtures c...

Of major concern is the lack of correlation between material design and structural function asphalt pavement in China. The objective this paper to identify layer where permanent deformation occurs most seriously propose a control index for that layer’s mixture. each was determined through utilization thickness measurements obtained from field cores. results indicate reduction more significant d...

The use of cold recycled asphalt mixtures (CRM) has been soaring during recent years. Reclaimed Asphalt Pavement (RAP) is the main component CRM, and despite numerous studies on impact different RAP types not deeply studied. This study compares volumetric several mechanical properties CRM prepared with from two sources various nominal maximum sizes (NMS). mix design was fixed, specimens were us...

an experimental program was conducted to determine the effects of geosynthetic reinforcement on mitigating reflection cracking in asphalt overlays. the objectives of this study were to asses the effects of geosynthetics inclusion and its placement location on the accumulation of permanent deformation. to simulate an asphalt pavement overlaid on top of a crack in a concrete or asphalt pavement, ...