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Browsing by Subject "Hot-mix asphalt"

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Analytical modelling of visco-elastic behaviour of hot-mix asphalt

Author: Komba, Julius J ; Maina, JW ; Anochie-Boateng, Joseph ; O'Connell, Johannes S Date: Jul 2012 As part of the revision of the South African Pavement Design Method (SAPDM), laboratory testing was conducted to obtain the dynamic (Complex) modulus |E*| of hot-mix asphalt (HMA) samples. Dynamic modulus gives an indication of linear ... 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
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
Method to determine full work of fracture from disk shaped compact tension tests on hot-mix asphalt

Author: Denneman, E Date: Aug 2010 Fatigue cracking is an important mode of failure in hot-mix asphalt (HMA). As part of the revision of the South African pavement design method (SAPDM) a need was identified to assess the fracture toughness of HMA in terms of fracture energy. ... Read more
Multi-laboratory precision of Marshall design related tests

Author: Denneman, E ; Marais, H ; Sadzik, ES Date: Jul 2008 The Marshall method is still the method of choice for the design of Hot-Mix Asphalt (HMA) in South Africa. During the validation of a HMA mix design, considerable variability was encountered in Marshall test results for the same mix supplied ... Read more
Resilient response characterisation of hot-mix asphalt mixes for a new South African pavement design method

Author: Anochie-Boateng, Joseph ; O'Connell, Johannes S ; Denneman, E ; Verhaeghe, Benoit MJA Date: Sep 2011 The South Africa National Road Agency Ltd (SANRAL) is in the process of revising the South African Pavement Design Method (SAPDM). A necessary part of this programme is to develop resilient response models. Dynamic (complex) modulus has been ... 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

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Browsing by Subject "Hot-mix asphalt"

Browsing by Subject "Hot-mix asphalt"

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