CEMOSA has developed multitude R&D projects, many of which have allowed the development of the following in-house technologies.
CEMOSA has developed a permeameter equipment that allows the performance of tests for permeability and drainability in pavements.
Bitumen mixes present water drain issues when the roads have low longitudinal slopes or changes in cant. In these cases, the usual solution adopted is rain hazard signalling, slippery pavement.
In addition, there are not standardised tests for the simulation of rainfall and the determination of the clean capacity in pavements. For that reason, CEMOSA has developed a new test equipment for the determination of main features of pervious pavements: permeability rate, durability and performance in case of rainfall. The need of this device appears from the low accuracy of the current methods to determine these parameters and the lack of prescriptions.
The developed equipment allows the performance of several tests directly on the bitumen mix sample made for other test equipment such as the plate compactor, offering an accuracy and reliability notably higher than the current methods.
The equipment was developed in the context of a R&D project called PAVISOST.
CEMOSA has developed an innovative high-performance system to determine the permeability and the Surface defects in pavements, oriented to the automation of the process of measurements.
The equipment, patented under P201430936, consists of a trailer equipped with a water tank, a pump, and a number of water nozzles which simulates an amount of standardised rainfall on the pavement. By the use of a termographic camera strategically located is possible to determine the drainability of the pavement for a given rainfall.
CEMOSA has developed and released an innovative software for the designing of pavement which includes all the processes and calculations in a single tool.
This software incorporates a number of modules which allow the designer to integrate in a single multi-device web application the whole process of calculation and designing of any typology of bitumen pavement along with the generation of a final report. The app includes traditional bitumen mixes together with a number of recycled bitumen mixes developed during REPARA 2.0. Project.
The application was developed in the context of a R&D project called REPARA2.0.
Currently, there are two main ways of designing the track in railway infrastructures, the track ballast and the slab track systems.
CEMOSA has been involved in several Research Project related to the development of slab track systems in order to ease the transition from the traditional ballast track towards slab track.
Device for securing a sleeper (PCT/ES2017/070140)
In the CAPACITY4RAIL project (within the 7th Framework Programme), CEMOSA together with other European partners has developed an innovative slab track system called 3MB (Moulded Modular Multi-blocks slab track).
3MB is a modular slab track system based on a RAMS approach, which has a main objective to enlage the life cycle of this type of element by a design which allows an ease substitution of the damaged elements.
The design presents as main innovation a number of interchangeable modules in case of failure, together with an innovative fastening system for these modules by a patented steel pin that ensure the structural reliability and an easy way to perform the maintenance tasks.
The slab track has been successfully tested in the Track Box Lab in the CEDEX facilities in Madrid, and a real demonstration is forecasted to be installed in Sweden.
Instalación para vías férreas con placas prefabricadas y procedimiento automatizado de maontaje de la misma (P201930613)
In collaboration with the Polytechnic University of Valencia, Eurecat Tecnological Center, the construction company VIAS and the railway manager of the Generalidad of Cataluña, CEMOSA has developed a new slab track system, called Robotrack. This system presents a number of benefits such as:
- Environmental improvements by the use recycled aggregates in the design of support layers
- Improvement in the strengh of the slab track due to the use of high-resistant concrete with fibers.
- Improvement in the construction procedure by the use of boarding robotic arm that instal the slabs in an automated way.
- High reliability and a cost notably lower regarding other slab track systems.
This development has been done during the Research Project Robotrack.
Fastrack Slab track system
CEMOSA has collaborated in the development of an innovative slab track system called Fastrack. The design has restricted to a number of technical requirements with the objective of streghtening the benefits of these systems and addressing some of its weaknesses.
The result was a new slab track system with a number of characteristics as follows:
- Good capability for vibration reduction.
- High performance during the construction due to its prefab nature and the reductive size of its elements.
- Low maintenance requirements.
- Large adaptability to the soil settlements.
- Good capacity for geometric adaption without large interventions.
- Integrated monitoring system which offers information about the current state of the slab track in real-time.
- Notably reduction of the costs during the life cycle.
This development has been done in the Research Project called Fastrack.
CEMOSA has developed a broad portfolio of methodologies focused on the study of earthworks using data analytics techniques in order to keep evolving in one of its key business areas.
The overall objective of this study is to improve different aspects of the earthworks maintenance process by applying carefully selected data mining techniques and to use the information extracted from them to build an Intelligent Asset Management System. The different areas covered in this work are presented as follows:
- Anomaly Detection. Development of a methodology to find the track geometry conditions which act as precursors of earthworks failures or degradation.
- Process Mining. The aim of this study is to determine whether the process of earthworks surveying is biased by the time of the year in which it takes place.
- Predictive Models. This study was focused on testing the hypothesis that increased rainfall levels during winter and extreme desiccation during summer – due to climate change – will translate in the future in a faster degradation of earthworks in wetter and drier areas of Europe.
- Earthworks Asset Management at the Strategic Level. Development of a strategic Intelligent Asset Management model based on Petri Nets to investigate optimal intervention schemes so as to offset the effect of earthworks degradation under budget and resource constraints.
Network Rail, the infrastructure manager of the UK, was the main partner in the development and the validation of these technologies.
All of these technologies were performed in the context of a Research and Innovation project called IN2SMART.