Results 41 to 50 of about 977 (190)

Erosion and tourism infrastructure in the coastal zone: Problems, consequences and management [PDF]

open access: yes, 2006
The importance of coastal zones to the tourism industry and the need to protect such resources is not only vital to the economy of nations but presents a growing dilemma for many localities and regions.
Jones, A.L., Phillips, Michael Roberts
core   +1 more source

Exploring the recovery capacity of recycling agents on atomic-scale energy properties of aged bitumen and their potential correlations with high-temperature rheological performance

open access: yesMaterials & Design
This study implements molecular dynamics (MD) simulations to explore the atomic-level energy properties of rejuvenated bitumen, considering the influence of different recycling agent (RA) types, dosages and aging levels of bitumen.
Shisong Ren, Xueyan Liu, Sandra Erkens
doaj   +1 more source

Rejuvenation of aged asphalt binder extracted from reclaimed asphalt pavement using waste vegetable and engine oils

open access: yesCase Studies in Construction Materials, 2019
After many years in service, bituminous material in roads becomes aged and starts losing its properties. Aged bitumen becomes more brittle and causes a reduction in pavement strength with a decrease in the service life of pavement.
Hasan H. Joni   +2 more
doaj   +1 more source

Aging Mechanism and Rejuvenating Possibility of SBS Copolymers in Asphalt Binders [PDF]

open access: yes, 2020
The styrene–butadiene–styrene (SBS)-modified asphalt pavement has been in growing demand in the road construction field owing to its workable mechanical property and temperature durability.
Li, Hechuan   +4 more
core   +1 more source

Testing of reclaimed asphalt model systems for the evaluation of the effectiveness of rejuvenators [PDF]

open access: yes, 2021
This paper presents the results of a preliminary study on the use of a novel ap-proach for the evaluation of the effectiveness of rejuvenating agents used in as-phalt mixtures containing reclaimed asphalt (RA). Such an approach is based on the mechanical
D. Dalmazzo   +3 more
core   +1 more source

Using soybean-derived materials to rejuvenate reclaimed asphalt pavement (RAP) binders and mixtures [PDF]

open access: yes, 2017
Over the past few years, the use of reclaimed asphalt pavement (RAP) has been growing consistently from 15% in 2009 to 20.3% in 2015. The desire to use higher amounts of RAP is inspired by the need to lower costs, conserve energy, and preserve the ...
Elkashef, Mohamed Elsayed
core   +3 more sources

Questionify gamification in education [PDF]

open access: yes, 2018
In the education industry, lecturers are finding ways to improve students’ concentrations and grades by using smart devices to track students’ assignment or tutorial progress.
Che Abdul Rani, Mohamad Firdaus   +3 more
core   +2 more sources

Advances in Asphalt Pavement Technologies and Practices [PDF]

open access: yes, 2022
Unlike other construction materials, road materials have developed minimally over the past 100 years. However, since the 1970s, the focus has been on more sustainable road construction materials such as recycled asphalt pavements.

core   +1 more source

Recycling of Polymer Components From Waste Face Masks for Asphalt Modification: A Mini Review

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 2, January 10, 2026.
ABSTRACT The COVID‐19 pandemic greatly increased plastic waste through widespread personal protective equipment (PPE) use, creating a serious environmental challenge. Disposable face masks (FM), primarily composed of non‐biodegradable polypropylene, account for an estimated 86 million units discarded monthly, leading to significant environmental ...
Derya Kaya Ozdemir, Tony McNally
wiley   +1 more source

Valorization of petroleum sludge as rejuvenator for recycled asphalt binder and mixture

open access: yesCase Studies in Construction Materials
The production of new pavements involving recycled asphalt pavement (RAP) is beneficial for preserving petroleum asphalt and natural aggregates. However, increasing the RAP content raises performance concerns in new pavement, thus necessitating the use ...
Abdul Muhaimin Memon   +4 more
doaj   +1 more source

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