Results 41 to 50 of about 412,069 (327)

Attempted DNA extraction from a Rancho La Brea Columbian mammoth (Mammuthus columbi): prospects for ancient DNA from asphalt deposits. [PDF]

open access: yes, 2014
Fossil-bearing asphalt deposits are an understudied and potentially significant source of ancient DNA. Previous attempts to extract DNA from skeletons preserved at the Rancho La Brea tar pits in Los Angeles, California, have proven unsuccessful, but it ...
Farrell, Aisling B   +5 more
core   +1 more source

Analysis of the Storage Stability Property of Carbon Nanotube/Recycled Polyethylene-Modified Asphalt Using Molecular Dynamics Simulations

open access: yesPolymers, 2021
Carbon nanotubes (CNTs) can improve the storage properties of modified asphalt by enhancing the interfacial adhesion of recycled polyethylene (RPE) and base asphalt.
Caihua Yu   +6 more
semanticscholar   +1 more source

GPR Application for Non-Rigid Road Pavement Condition Assessment

open access: yesElectrical, Control and Communication Engineering, 2022
The main aim of the article is to demonstrate the effectiveness of the use of ground penetrating radars to assess various objects using the example of assessing the current state of highways. The article uses the software developed by the authors and the
Batrakov Dmitry O.   +2 more
doaj   +1 more source

High Percentages of Reclaimed Asphalt Affect the Performance of Asphalt Binder [PDF]

open access: yes, 2020
More than 90 percent of the road and highway network in the United States is paved with asphalt concrete. Maintenance and periodic rehabilitation require a continuous supply of aggregates and asphalt binder, both of which are becoming increasingly scarce
Butt, Ali A.   +2 more
core  

Determinación del desplazamiento lateral de vehículos en carreteras urbanas de Costa Rica

open access: yesInfraestructura Vial, 2016
El objetivo del proyecto consiste en determinar un valor de desplazamiento lateral que sea representativo para carreteras urbanas de Costa Rica, que pueda ser utilizado para el diseño y simulación del deterioro de pavimentos.
Velvet Morris Mitchell   +1 more
doaj   +1 more source

Experimental feasibility study of using date palm oil as a bitumen Bio-Modifier in HMA pavement [PDF]

open access: yes, 2020
This paper examines the effects of Date palm oil as a bitumen modifier on the compressive strength of bitumen and hot mixed asphalt (HMA) pavement.
Abu Yousef, Mohammad, Amin, Shohel
core   +2 more sources

The Interfacial Adhesion Performance and Mechanism of a Modified Asphalt–Steel Slag Aggregate

open access: yesMaterials, 2020
The interfacial adhesion between asphalt and steel slag aggregate is a decisive factor in the formation of an asphalt–steel slag mixture and significantly affects the quality stability of steel slag–asphalt mixtures.
Wenhuan Liu   +3 more
semanticscholar   +1 more source

A Review on the Durability of Recycled Asphalt Mixtures Embraced with Rejuvenators

open access: yesSustainability, 2021
Reclaimed asphalt pavement (RAP) has received much attention recently due to its increased use in hot mix asphalt (HMA) pavements to enhance pavement sustainability. The use of aged asphalt in RAP, which is highly oxidised and has lost its properties due
Z. Al-Saffar   +7 more
semanticscholar   +1 more source

Study on Prevention and Treatment Strategy of Asphalt Ultraviolet (UV) Aging Based on UV Climate Zoning in China

open access: yesApplied Sciences, 2021
The purpose of this paper, based on the amount of ultraviolet (UV) radiation in different areas of China, was to give the corresponding measures to prevent UV aging of asphalt. In this paper, based on the average annual amount of UV radiation in China in
Ling Zou   +5 more
doaj   +1 more source

Rheological characteristics of epoxy asphalt binders and engineering properties of epoxy asphalt mixtures – state-of-the-art

open access: yesInternational Journal on Road Materials and Pavement Design, 2021
The asphalt industry is aiming to produce high-quality materials and efficient technologies for pavement construction. One such technology that attracts attention is epoxy asphalt. This paper discussed the concepts, theories and engineering properties of
A. Jamshidi   +2 more
semanticscholar   +1 more source

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