A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Strength Characteristics of Cement-Stabilized Recycled Asphaltic Pavement (RAP) for Pavement Applications
Good quality construction materials are on the verge of depletion in various parts of the world. It is essential to preserve the available natural resources for the future. This scenario forces the engineers toward recycling of the construction materials such as recycled asphaltic pavement, construction and demolition waste, and demands their reuse in construction. As these materials are already distressed, they are inferior compared to conventional natural construction materials. This poses a limitation for the use of such recycled materials in construction and only a small amount of recycled materials can be used in its original form. To overcome this limitation, admixtures such as cement, lime and fly ash can be added to the recycled materials for improving their mechanical properties making them more durable. In this study, one such recycled material obtained from pavements during its rehabilitation, reconstruction, maintenance, etc. over a period of time is considered for investigation. The strength of various RAP–conventional aggregate mixtures were characterized in terms of CBR, and its suitability for granular sub-base applications is evaluated based on minimum CBR criteria specified by the relevant standards. From the test results, it is observed that the addition of cement improves the strength of the mix. Based on the minimum strength criteria of GSB, cement content of up to 3% is found to replace up to 100% conventional GSB material providing eco-friendly and sustainable construction practice.
Strength Characteristics of Cement-Stabilized Recycled Asphaltic Pavement (RAP) for Pavement Applications
Good quality construction materials are on the verge of depletion in various parts of the world. It is essential to preserve the available natural resources for the future. This scenario forces the engineers toward recycling of the construction materials such as recycled asphaltic pavement, construction and demolition waste, and demands their reuse in construction. As these materials are already distressed, they are inferior compared to conventional natural construction materials. This poses a limitation for the use of such recycled materials in construction and only a small amount of recycled materials can be used in its original form. To overcome this limitation, admixtures such as cement, lime and fly ash can be added to the recycled materials for improving their mechanical properties making them more durable. In this study, one such recycled material obtained from pavements during its rehabilitation, reconstruction, maintenance, etc. over a period of time is considered for investigation. The strength of various RAP–conventional aggregate mixtures were characterized in terms of CBR, and its suitability for granular sub-base applications is evaluated based on minimum CBR criteria specified by the relevant standards. From the test results, it is observed that the addition of cement improves the strength of the mix. Based on the minimum strength criteria of GSB, cement content of up to 3% is found to replace up to 100% conventional GSB material providing eco-friendly and sustainable construction practice.
Strength Characteristics of Cement-Stabilized Recycled Asphaltic Pavement (RAP) for Pavement Applications
Lecture Notes in Civil Engineering
Pathak, K. K. (editor) / Bandara, J. M. S. J. (editor) / Agrawal, Ramakant (editor) / Vidyashree, V. K. (author) / Mamatha, K. H. (author) / Dinesh, S. V. (author)
2020-09-28
11 pages
Article/Chapter (Book)
Electronic Resource
English
| Engineering Index Backfile | 1920
| Engineering Index Backfile | 1920
Wisconsin Asphaltic Pavement Warranties
| British Library Conference Proceedings | 1996
Polyester Fibers for Asphaltic Pavement Reinforcement
| NTIS | 1989