Research at the LMDC

Research at the LMDC

Research at the LMDC

The LMDC offers scientific solutions for the sustainable development and eco-responsible management of buildings, civil engineering infrastructure and housing. To this end, it develops innovative materials for civil engineering, improves understanding of the physico-chemical phenomena that can affect the durability of construction materials, and develops methodologies and techniques for the requalification, diagnosis and maintenance of existing structures. Therefore, the research is organised into 3 thematic areas, supported by 2 cross-disciplinary areas associated with societal issues and 1 cross-disciplinary methodological area.

Area 1: Innovative multiphase materials

The aim of Area 1 is to formulate construction materials to achieve optimum performance while seeking to reduce their environmental impact as far as possible. In this area, the assessment of properties is carried out at the material level in two main areas: hygrothermal performance and mechanical performance. Microstructure studies at the finest material scales are systematically carried out in order to improve understanding of the phenomena that occur on a macroscopic scale and also to predict the behaviour of materials. Area 1 is divided into three themes to achieve these objectives:

Area 2: Reactivity, transfer and coupling for the durability of materials and structures

The activities of the team focus on understanding the evolution of materials and structures in their environment, and predicting their behaviour in the interests of environmental protection, safety and security, and maintaining process efficiency. They cover in particular the durability of materials, especially cementitious materials, and civil engineering structures under complex and/or coupled stresses (THCBM). Scientific developments are based on a common approach, starting with a detailed understanding of phenomena on a microscopic scale (chemical reactivity, physical and mechanical properties under severe conditions), then proceeding to the scales of the material and the structure.

Area 3: Analysis and monitoring of buildings in their environment

Activities in the Thematic Area 3 focus on existing buildings. Firstly, this involves improving the non-destructive evaluation of the properties and condition state of materials within structures and buildings. Then, it is needed to assess their performance in terms of structure and/or energy, from a deterministic or probabilistic point of view, and at different scales by integrating the potential effect of the surrounding building. Finally, it is necessary to improve the monitoring over time of the performance of structures and buildings after repair or rehabilitation.

Les enjeux sociétaux et la méthodologie organisés en 3 axes transversaux

Les axes ont pour objectif de coordonner des activités communes à plusieurs pôles, soit dans une optique d’enjeux sociétaux (Développement durable, énergie), soit en termes de méthodologie globale (approche multi échelle, multi physique, probabiliste).
  • Mécanismes de dégradation des matériaux
    • Compréhension (chimie, mécanique)
    • Prise en compte des paramètres environnementaux
  • Nouveaux matériaux à moindre impact de CO2
    • Liant à faible impact environnemental (métakaolin)
    • Éco-matériaux (dont agro-matériaux)
    • Analyse du cycle de vie des matériaux
  • Optimisation de la maintenance des ouvrages existants
    • Physique pour les Contrôles Non Destructifs
    • Aide à la décision en matière de maintenance
  • Techniques de réhabilitation globale
    • Analyse et calcul d'ouvrages partiellement dégradés
    • Augmentation de la durée d'exploitation

Membres permanents ECC :

ECC theme: Energy, Construction, Comfort

The Energy, Construction and Comfort theme brings together LMDC researchers whose activities aim to develop innovative solutions at different scales (system, building, city) to improve energy efficiency and propose smart energy management, analyze occupant behavior and guarantee optimal comfort, and finally reduce the environmental footprint.
 
Thanks to its multi-disciplinary approach, the Energy, Construction and Comfort theme combines skills in Civil Engineering, HVAC Engineering, Materials and Architecture. This work is carried out in collaboration with industrial players (VINCI Energies), public institutions (Toulouse Métropole, ADEME) and standardization bodies (CSTB) to promote the implementation of research results and thus contribute to the transition towards more sustainable, energy-efficient buildings.
 
RECENT PROJECTS (click for more info)

Main activities of the ECC theme

Energy Renovation

  • Energy rehabilitation
  • Decision support
  • Comfort, summer comfort
  • Energy efficiency
  • Dynamic thermal simulation
  •  

 

Urban Climate and Urban Heat Island

  • Urban microclimate
  • Urban heat islands
  • Multi-scale modeling and GIS
  • Climate adaptation

 

Thermal System

  • Thermochemical heat storage
  • Prototypes
  • Optimization of heat and mass transfer
  • Intelligent control of HVAC systems

Low Environmental

  • Footprint Materials for Hygrothermal
  • Performance of Buildings
  • Heat and mass transfer
  • Bio-sourced and geo-sourced materials
  • Energy rehabilitation
  • Old and historic buildings
    In-situ instrumentation of wall elements 

Connected Buildings

  • Sensors
  • Internet of things (IoT)
  • Big data
  • Artificial
  • Intelligence (AI)
  • BIM
  • Data enhancement
  • Building energy performance

 

 

Taux de maturité d’une copropriété (Henriel, 2019)
Intensité des ICU sur Toulouse Métropole (aua/T 2019)
Prototype PROTEUS
Rénovation intérieure avec blocs préfabriqués de béton de chanvre
Maquette numérique du futur bâtiment connecté démonstrateur

 

 

Impact du mode de ventilation sur le confort d'été de logements rénovés

 

 

Optimisation de pavés rafraîchissants (Wardeh, 2023)
Installation CVC (Benakcha 2023)
Panneau Rayonnant (Mosa 2019)
Bâtiments du 14ème siècle de la ville de Cahors

 

 

Exemple de connexion de capteurs par réseau filaire Modbus