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Asphalt rutting and its prevention

Author: Verhaeghe, Benoit MJA ; Myburgh, PA ; Denneman, E Date: Sep 2007 The paper seeks to redress the concerns expressed at the eight Conference on Asphalt pavements for Southern Africa (CAPSA) that the design of hot-mix asphalt did not adequately address prevention of rutting. It presents a consolidation of ... Read more
Correlating the asphalt-binder MSCR test results to the HMA HWTT and field rutting performance

Author: Walubita, LF ; Ling, M ; Fuentes, L ; Komba, Julius J ; Mabrouk, GM Date: Sep 2022 Asphalt binder is one of the key constitutive components of hot-mix asphalt (HMA) that considerably affects its rutting performance. In particular, the high-temperature rheological properties measured from the multiple stress creep and recovery ... Read more
Evaluating the effects of compaction of hot mix asphalt on selected laboratory tests

Author: Kekana, SL ; Steyn, WJvdM Date: Jul 2008 Hot Mix Asphalt (HMA) surfaced roads provide good riding quality when properly constructed, but there are serious distresses associated with HMA, and asphalt rutting is one of them. The existence of rutting on roads results in ponding of water ... Read more
Evaluation of the performance of aggregate in hot-mix asphalt

Author: Komba, Julius J ; O'Connell, Johannes S ; Paige-Green, P Date: Jul 2014 The overall performance of an asphalt mix is dependent on, amongst others, the properties of the constituent materials, which include aggregate, binder and filler. The aggregate for production of asphalt mixes is usually sourced from a quarry, ... Read more
The Hamburg Rutting Test (HWTT) alternative data analysis methods and HMA screening criteria

Author: Walubita, LF ; Faruk, ANM ; Zhang, J ; Komba, Julius J ; Alrashydah, EI ; Simate, GS Date: Apr 2019 The Hamburg Wheel Tracking Test (HWTT) is a widely used routine laboratory test for identifying and screening hot-mix asphalt (HMA) mixes that are prone to rutting. The standard HMA pass-fail screening criterion under the current HWTT protocol ... Read more
High modulus asphalt (EME) technology transfer to South Africa and Australia: shared experiences

Author: Denneman, E ; Petho, L ; Verhaeghe, Benoit MJA ; Komba, Julius J ; Steyn, W ; Vos, R ; Distin, T ; Myburgh, P ; Beecroft, A ; Griffin, J Date: Aug 2015 The paper describes experiences with the implementation of French enrobés à module élevé (EME) (high modulus asphalt) technology in South Africa and Australia. Tentative performance specifications for EME mixes were set in the two countries ... Read more
Use of grid reinforcement in HMA overlays - A Texas field case study of Highway US59 in Atlanta District

Author: Walubita, LF ; Mahmoud, E ; Lee, SI ; Carrasco, G ; Komba, Julius J ; Fuentes, L ; Nyamuhokya, TP Date: Jul 2019 One of the common methods to mitigate reflective cracking, in existing cracked pavements, is the use of interlayer grid reinforcements in hot-mix asphalt (HMA) overlay construction during maintenance and/or rehabilitation projects. As a means ... Read more
Use of grid reinforcement in HMA overlays – A Texas field case study of highway US 59 in Atlanta District

Author: Walubita, LF ; Mahmoud, E ; Lee, SI ; Carrasco, G ; Komba, Julius J ; Fuentes, L ; Nyamuhokya, TP Date: Jul 2019 One of the common methods to mitigate reflective cracking, in existing cracked pavements, is the use of interlayer grid reinforcements in hot-mix asphalt (HMA) overlay construction during maintenance and/or rehabilitation projects. As a means ... Read more
The use of plastic waste in road construction

Author: Mturi, George AJ ; O’Connell, Johan S ; Akhalwaya, Imraan ; Ojijo, Vincent O ; Mofokeng, Tladi G ; Ncolosi, Nonzwakazi ; Smit, Michelle A Date: Dec 2021 Recycled plastics are being investigated worldwide not only as a green investment, but also for improved pavement durability (Milad et al., 2020). The objectives of the study were to screen, evaluate and implement existing international ... Read more

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Browsing by Subject "HMA"

Browsing by Subject "HMA"

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All of ResearchSpace

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