Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach
The present work is a re-evaluation of previous research on the durability of hot-mix asphalt made with recycled concrete aggregates from construction and demolition waste (CDW) with a different approach. Response surface methodology (RSM) was used to conduct this study. The kind of natural aggregat...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-07-01
|
Series: | Sustainability |
Subjects: | |
Online Access: | https://www.mdpi.com/2071-1050/11/13/3730 |
id |
doaj-11bc1b6aa59e46e8aba9c5f9689ea8d9 |
---|---|
record_format |
Article |
spelling |
doaj-11bc1b6aa59e46e8aba9c5f9689ea8d92020-11-25T00:42:00ZengMDPI AGSustainability2071-10502019-07-011113373010.3390/su11133730su11133730Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments ApproachJuan J. Galan0Luís M. Silva1Ignacio Pérez2Ana R. Pasandín3University of A Coruña, ETSI Caminos, Canales y Puertos, Campus de Elviña s/n, 15071 La Coruña, SpainCIETI, ISEP-School of Engineering, Polytechnic of Porto, Rua Dr. António Bernardino de Almeida 431, 4200-072 Porto, PortugalUniversity of A Coruña, ETSI Caminos, Canales y Puertos, Campus de Elviña s/n, 15071 La Coruña, SpainUniversity of A Coruña, ETSI Caminos, Canales y Puertos, Campus de Elviña s/n, 15071 La Coruña, SpainThe present work is a re-evaluation of previous research on the durability of hot-mix asphalt made with recycled concrete aggregates from construction and demolition waste (CDW) with a different approach. Response surface methodology (RSM) was used to conduct this study. The kind of natural aggregates (schist and calcite-dolomite), the recycled concrete aggregates percentage (0%, 20%, 40% and 60%) and the water saturation (0% and 100%) were the pertinent factors for this methodology. Indirect tensile stress (ITS) was determined in mixtures fabricated with 0%, 20%, 40% and 60% recycled concrete aggregates. According to the results, the ITS of the bituminous mixtures increases as the percentage of recycled concrete aggregate increases. This behavior is more significant when calcite-dolomite is used as a natural aggregate. Water saturation has the same influence in both natural aggregates. The indirect tensile strength ratio (ITSR) was calculated to evaluate the stripping potential. According to the Spanish specifications, the results suggest that the percentage of CDW that can be used for hot mixes is 17% when schist is used as natural aggregate and 14% for calcite-dolomite.https://www.mdpi.com/2071-1050/11/13/3730recycled concrete aggregateconstruction and demolition wasteindirect tensile stresshot-mix asphaltresponse surface methodology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Juan J. Galan Luís M. Silva Ignacio Pérez Ana R. Pasandín |
spellingShingle |
Juan J. Galan Luís M. Silva Ignacio Pérez Ana R. Pasandín Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach Sustainability recycled concrete aggregate construction and demolition waste indirect tensile stress hot-mix asphalt response surface methodology |
author_facet |
Juan J. Galan Luís M. Silva Ignacio Pérez Ana R. Pasandín |
author_sort |
Juan J. Galan |
title |
Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach |
title_short |
Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach |
title_full |
Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach |
title_fullStr |
Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach |
title_full_unstemmed |
Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach |
title_sort |
mechanical behavior of hot-mix asphalt made with recycled concrete aggregates from construction and demolition waste: a design of experiments approach |
publisher |
MDPI AG |
series |
Sustainability |
issn |
2071-1050 |
publishDate |
2019-07-01 |
description |
The present work is a re-evaluation of previous research on the durability of hot-mix asphalt made with recycled concrete aggregates from construction and demolition waste (CDW) with a different approach. Response surface methodology (RSM) was used to conduct this study. The kind of natural aggregates (schist and calcite-dolomite), the recycled concrete aggregates percentage (0%, 20%, 40% and 60%) and the water saturation (0% and 100%) were the pertinent factors for this methodology. Indirect tensile stress (ITS) was determined in mixtures fabricated with 0%, 20%, 40% and 60% recycled concrete aggregates. According to the results, the ITS of the bituminous mixtures increases as the percentage of recycled concrete aggregate increases. This behavior is more significant when calcite-dolomite is used as a natural aggregate. Water saturation has the same influence in both natural aggregates. The indirect tensile strength ratio (ITSR) was calculated to evaluate the stripping potential. According to the Spanish specifications, the results suggest that the percentage of CDW that can be used for hot mixes is 17% when schist is used as natural aggregate and 14% for calcite-dolomite. |
topic |
recycled concrete aggregate construction and demolition waste indirect tensile stress hot-mix asphalt response surface methodology |
url |
https://www.mdpi.com/2071-1050/11/13/3730 |
work_keys_str_mv |
AT juanjgalan mechanicalbehaviorofhotmixasphaltmadewithrecycledconcreteaggregatesfromconstructionanddemolitionwasteadesignofexperimentsapproach AT luismsilva mechanicalbehaviorofhotmixasphaltmadewithrecycledconcreteaggregatesfromconstructionanddemolitionwasteadesignofexperimentsapproach AT ignacioperez mechanicalbehaviorofhotmixasphaltmadewithrecycledconcreteaggregatesfromconstructionanddemolitionwasteadesignofexperimentsapproach AT anarpasandin mechanicalbehaviorofhotmixasphaltmadewithrecycledconcreteaggregatesfromconstructionanddemolitionwasteadesignofexperimentsapproach |
_version_ |
1725284362989076480 |