Publicacións

@article{galan_evaluation_2020,

title = {Evaluation of the Resilient Modulus of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste},

author = {Juan José Galán-Díaz and Luís M. Silva and Ana M. Rodríguez-Pasandín and Ignacio Pérez-Pérez},

url = {https://www.mdpi.com/2071-1050/12/20/8551},

doi = {10.3390/su12208551},

issn = {2071-1050},

year  = {2020},

date = {2020-01-01},

urldate = {2026-08-06},

journal = {Sustainability},

volume = {12},

number = {20},

pages = {8551},

publisher = {Multidisciplinary Digital Publishing Institute},

abstract = {This paper reports the influence of the percentage of recycled aggregate (RCA) from construction and demolition waste (C&DW) together with the percentage of binder (L), curing time (t) and temperature (T) of the samples on the stiffness of a hot asphalt mixture. The study was carried out using the response surface methodology (RSM). The resilient modulus was chosen to estimate the stiffness of the mixture. The percentages of RCA studied were 0% (control), 5%, 10%, 20% and 30%, whilst 3.5%, 4% and 4.5% were those chosen for the binder content. Before compacting the samples, they were left into the oven to cure. Curing time, or pretreatment time, were set at 0 (control), 2 and 4 h. The samples were subjected to temperatures of 0, 10 and 20 °C. The natural aggregate is of the hornfels type. All the specimens studied showed high stiffness at low temperatures. According to this research, temperature proved to be the most influential factor on the decrease in the resilient modulus and, conversely, the percentage of recycled aggregate is not a significant factor in the range of values studied.},

keywords = {Construction and demolition waste, hot-mix asphalt, recycled concrete aggregate, resilient modulus, response surface methodology},

pubstate = {published},

tppubtype = {article}

}

@article{galan_mechanical_2019,

title = {Mechanical Behavior of Hot-Mix Asphalt Made with Recycled Concrete Aggregates from Construction and Demolition Waste: A Design of Experiments Approach},

author = {Juan José Galán-Díaz and Luís M. Silva and Ignacio Pérez-Pérez and Ana M. Rodríguez-Pasandín},

url = {https://www.mdpi.com/2071-1050/11/13/3730},

doi = {10.3390/su11133730},

issn = {2071-1050},

year  = {2019},

date = {2019-01-01},

urldate = {2026-08-05},

journal = {Sustainability},

volume = {11},

number = {13},

pages = {3730},

publisher = {Multidisciplinary Digital Publishing Institute},

abstract = {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.},

keywords = {Construction and demolition waste, hot-mix asphalt, indirect tensile stress, recycled concrete aggregate, response surface methodology},

pubstate = {published},

tppubtype = {article}

}