A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Methods of Rehabilitating Pavements with Moisture Damaged Asphalt Layers: Technical Report
Moisture damage to old hot mix asphalt layers can result in surface cracking and greatly reduce the life of any new asphalt overlay. Buried moisture damage, generally called stripping, in asphalt layers can often go undetected, resulting in new overlays not reaching their design life. Conventional wisdom is to mill down to solid HMA and then place full depth new HMA. This strategy is costly and means that several inches of good materials will be sent to reclaimed asphalt pavement stockpiles. Recent developments for cold in-place recycling (CIR) and cold central-plant recycling (CCPR) technologies can be considered for addressing moisture-damaged asphalt layers by recycling the existing material in place to create a structurally sound asphalt treated base layer. Through a thorough literature review, field sampling and testing, a comprehensive lab study, and evaluation of pavement design alternatives, this project identified lab methods to determine treatment options, documented binder type and temperature influences on material properties, used lab properties to predict pavement performance, and recommended special specification updates for use on future CIR or CCPR projects. These methods and specification updates should be considered to explore developing recycling options for identified moisture-damaged pavement sections.
Methods of Rehabilitating Pavements with Moisture Damaged Asphalt Layers: Technical Report
Moisture damage to old hot mix asphalt layers can result in surface cracking and greatly reduce the life of any new asphalt overlay. Buried moisture damage, generally called stripping, in asphalt layers can often go undetected, resulting in new overlays not reaching their design life. Conventional wisdom is to mill down to solid HMA and then place full depth new HMA. This strategy is costly and means that several inches of good materials will be sent to reclaimed asphalt pavement stockpiles. Recent developments for cold in-place recycling (CIR) and cold central-plant recycling (CCPR) technologies can be considered for addressing moisture-damaged asphalt layers by recycling the existing material in place to create a structurally sound asphalt treated base layer. Through a thorough literature review, field sampling and testing, a comprehensive lab study, and evaluation of pavement design alternatives, this project identified lab methods to determine treatment options, documented binder type and temperature influences on material properties, used lab properties to predict pavement performance, and recommended special specification updates for use on future CIR or CCPR projects. These methods and specification updates should be considered to explore developing recycling options for identified moisture-damaged pavement sections.
Methods of Rehabilitating Pavements with Moisture Damaged Asphalt Layers: Technical Report
S. Im (author) / S. Sebesta (author) / Y. Rew (author)
2018
94 pages
Report
No indication
English
Transportation , Transportation & Traffic Planning , Construction Management & Techniques , Construction Materials, Components, & Equipment , Highway Engineering , Civil Engineering , Construction Equipment, Materials, & Supplies , Hot mix asphalt (HMA) , Pavement recycling , Reclaimed asphalt pavement (RAP) , Pavement performance analysis , Cold in-place recycling (CIR) , Cold central-plant recycling (CCPR) , Material properties , Surface cracking , Texas Department of Transportation (TxDOT)
Kentucky's experience with rehabilitating PCC pavements with asphalt overlays
British Library Online Contents | 2011
Guidelines for Rehabilitating Flexible Pavements
| NTIS | 1986
Recyclability of Moisture Damaged Flexible Pavements.
| Online Contents | 1993
Recyclability of Moisture Damaged Flexible Pavements
| British Library Online Contents | 1993