The objective of this study is to evaluate the rheological properties and chemical bonding of nano-modified asphalt binders blended with nanosilica. In this study, the nanosilica was added to the control asphalt at contents of 4% and 6% based on the weight of asphalt binders. Superpave binder and mixture tests were utilized in this study to estimate the characteristics of the nano-modifed aspha...

Waste plastic pollution is a serious issue. In order to adhere the concept of green development and rationally dispose polyethylene waste products, (PE)-modified asphalt was prepared using recycled (RPE) low-density (LDPE) as raw materials. The chemical structures RPE- LDPE-modified were studied Fourier transform infrared spectrometer (FTIR), dispersion RPE fluorescence microscope (FM). Subsequ...

compacted low strength material (clsm) made with material such as fly ash and recycled aggregates is used as filler at city infrastructure canals without compaction need. experimental small specimens and large canals were casted with this concrete and tested to give several results. test results of compression strengths on 12 different designs shows that this concrete with high workability and ...

Basic oxygen furnace slag (BOF) is widely used in road construction, but there is a lack of characteristics in different asphalt mixtures. This study investigates the properties of hot-mixed asphalt (HMA), containing stone mastic asphalt (SMA), porous asphalt (PA), and dense-graded BOF as a partial substitution for natural aggregates. The purpose of this study is to evaluate various BOF slag co...

Concrete pavement recycling is a relatively simple process that involves breaking, removing and crushing hardened concrete from an acceptable source to produce recycled concrete aggregate (RCA). The formal process of RCA production typically involves an initial evaluation of the existing source concrete; pavement preparation, which may include removal of an asphalt overlay; pavement breaking, r...

The practical performance of recycled asphalt obtained from engine oil bottom (REOB) was evaluated by paving a test road base and REOB-recycled mixture in laboratory, where accelerated loading tests with 700,000 cycles were conducted. During loading, pavement temperature, layer strain, skid resistance, rutting monitored. core material tested after to analyze the index change binder compaction d...