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Analysis of surface characteristics and new maintenance techniques for road, railway and airport infrastructures

Keywords: Maintenance, Microsurfacings, Skid resistance, Laser Scanner
Fig. 1. Cold laid micro-surfacing (Author: Cesare Sangiorgi).
Fig. 2. Laser scanning of pavement texture (Author: Valentina Alena Girelli).
Fig. 3. Continuous Compaction Control of un-bound C&D layers (Author: Cesare Sangiorgi).

Infrastructure construction and management re-quires validation and monitoring of the perfor-mance characteristics in terms of skid resistance, evenness and bearing capacity, along with tire-pavement contact noise, traffic vibrations and water drainage.

Controls can take place either during construction or the service life of the infrastructure and may lead to re-construction or to scheduled maintenance interventions targeting durability and safety.

In this context, the pavements research group of DICAM aims to develop innovative technologies and methods for monitoring the pavement as well as new maintenance intervention techniques that aim to extend the service life and increase safety.

In particular, the following topics have been re-cently addressed:

(a) Vibratory Continuous Compaction Control of unbound layers, together with LWD or FWD sys-tems used as cross validation methods;
(b) Mobile Mapping Systems (MMS) for the measurement of various geometric characteristics such as profile and sections, for the identification of damages and for the calculation of indexes such as PSI and PCI or similar;
(c) Laser Scanning Systems for the texture analy-sis of pavement surfaces and its correlation with skid resistance and surface drainage;
(d) Microgrip testing methodology for the as-sessment of post-accident cleaning interventions on paved surfaces;
(e) Multifunctional Cold laid micro-surfacings containing End of Life Tires (ELT) crumb rubber for enhanced skid resistance, noise abatement properties and low carbon footprint;
(f) Novel waterproofing systems for bridges and paved surfaces containing ELT recycled rubber mat and bituminous coatings;
(g) Wire heating technologies to control the mois-ture conditions of bituminous pavements surfaces in airports and road infrastructures;
(h) Laboratory assessment procedure to verify the design of the high-performance instrumentations Eurobalise, installed on the railway infrastructure.

Main publications

Woodward D., Millar P., Lantieri C., Sangiorgi C., Vignali V. 2016. The wear of Stone Mastic Asphalt due to slow speed high stress simulated laboratory trafficking. Construction and Building Materials, 110, Pages 270–277.

Mazzotta, F., Simone, A., Vignali, V., Lantieri, C., Sangiorgi, C., and Dondi, G., 2016. Pull-out tests on bituminous specimens with steel wire mesh reinforcements. Functional Pavement Design – on Erkens et al., Pages 889-898. CEW 4th Chinese European Workshop on Functional Pavement Design, July 2016 – Delft.

Lamperti, R., Lantieri, C., Sangiorgi, C., Bitelli, G., Simone, A. 2016. Semi-automatic evaluation of the degree of bitumen coverage on bitumen-coated aggregates. RILEM Bookseries Volume 11, Pages 15-24. 8th International RILEM SIB Symposium "Testing and Characterization of Sustainable & Innovative Bituminous Materials”, October 7-9, 2016 – Ancona, Italy.

Lantieri C., Lamperti R., Simone A., Vignali V., Sangiorgi C., Dondi G. 2015 Mobile Laser Scanning System for Assessment of the Rainwater Runoff and Drainage Conditions on Road Pavements. International Journal of Pavement Research and Technology. Volume 8, Issue 1, Pages 1-9.

Dondi G., Sangiorgi C., Lantieri C. 2014. Apply-ing geostatistics to the Continuous Compaction Control of C&D materials for road embankment. Journal of Geotechnical and Geoenvironmental Engineering. Volume 140, Issue 3, Article num-ber 06013005.

Bitelli G., Simone A., Girardi F., Lantieri C. 2012. Laser scanner on road pavements: a new approach for characterizing surface texture. Sensors (Switzerland) Volume 12, Issue 7, Pages 9110-9128.

Sangiorgi C., Bitelli G., Lantieri C., Girardi F., Irali F. 2012, A study on texture and acoustic properties of cold laid Microsurfacings, 5th Inter-national Congress Sustainability of Road Infra-structures, Rome, Italy 29-31 October 2012, Pro-cedia Social and Behavioral Sciences Volume 53, Pages 223–234.

Sangiorgi C., Lantieri C., Marradi A., Betti G. 2012. Quality assessment of recycled C&Ds' ma-terials compacted using Continuous Compaction Control, 7th International Conference on Mainte-nance and Rehabilitation of Pavements and Tech-nological Control, MAIREPAV 2012; University of Auckland's Business School, Auckland; New Zealand; 28 - 30 August 2012; Code 110271.

Simone A., Lantieri C., Vignali V., Bitelli G., Girardi F. 2012. 3D Laser Scanner Technique for in situ analysis of road pavement surface texture, 7th MAIREPAV 2012; University of Auckland's Business School, Auckland; New Zealand; 28 - 30 August 2012.

Dondi G., Barbarella M., Sangiorgi C., Lantieri C., De Marco L. 2012. A semi-automatic meth-odology to identify defects on a road surface, Proceedings of ICSDC 2011; Kansas City, MO; United States; 23 - 25 March 2011; 2012, Pages 704-711.

Research projects

Research Project Agreement between DICAM and ALSTOM, Evaluation of the load mode and the potential damage caused on the “Eurobalise“ system due to windage caused by the passage of the train. 2016.

Research Project Agreement between DICAM and Ecopneus Scpa, Laboratory characterization of asphalt interlayers containing ELT rubber. 2015.

Research Project Agreement between DICAM and AHT Italia srl. Use of heating technologies to control the conditions of the road surface pave-ment. 2015.

Research Project Agreement between DICAM and Società Strada dei Parchi SpA. Maintenance of the A25 motorway Torano-Avezzano. 2013.