ALBIOMA
Project presentation
Under the programmeALBIOM-H®, a test board of typeALBIOM-AGwas carried out on the site of thenew careerTERALTA in Pierrefonds (La Réunion) in the third quarter 2025.
This project is part of an innovation and circular economy approach aimed atvalue by-products from thebiomass combustion in development projects, earth and road infrastructure
The experiment involved a mixture combining:
- a natural serious 0/80 mm;
- slag from combustion ofbiomass 0/10 mm.
The main objectivewas to confirmthe mechanical performance and time behaviour of this alternative material under real-world construction conditions.
Objectives of the experiment
The objectives of the test plan were:
- (d) assess the operational feasibility of ALBIOM-AG material;
- validate the conditions for implementation on site;
- measure the evolution of lift over time;
- confirm laboratory assumptions;
- contribute to the development of local solutions for valuing industrial co-products.
Implementation methodology
️ Making the mixture
The ALBIOM-AG blend was developed directly on the site of this new career.
Particular attention has been paid to the water condition of the materials in order to achieve the laboratory-defined compaction optimum.
- Optimal target water content: 15.5% ± 10%
- Water content measured during mixing: 15.4%
The mixture was made with the bucket with water adjustment by water supply.
◾️ Performance of the test board
The test board was carried out on an area in embankment in the continuity of the rocking bridge of the quarry, which is characterized by maximum stress and aggressiveness
Main features:
- Length: about 22 meters
- Width: about 4 meters
- Implementation in 2 layers
- Compact thickness: 20 cm per layer
- Compaction: 7 passes at 2.5 km/h
Technical results
The J+22 tests show a significant improvement in the mechanical performance of the material.
- average increase in lift:+54 % ;
- Final ranking of the platform:PF3 ;
- lift values between120 and 200 MPa ;
- very good traffic behaviour;
- low surface porosity;
- low rejection rate.
The results obtained confirm the assumptions made during the laboratory tests and demonstrate the relevance of ALBIOM-AG material for earth-moving and form layer applications.
Innovation & circular economy
The ALBIOM‐H® program contributes to several strategic issues:
- reduction of landfillcombustion by-products;
- development of local resources ;
- Limiting extractionnatural materials;
- development of low carbon solutionsfor infrastructure;
- strengthening circular economy approachesThe Meeting.
This experiment is an important step towards integrating alternative materials into territorial infrastructure projects.
Outlook
In view of the observed performance, the ALBIOM-AG material has great potential for:road platforms,technical embankments,the shape layers andindustrial and logistical developments.
Les retours d’expérience issus de cette opération permettront de compléter le dossier « Technique , Environnemental et Sanitaire » instruit dans le respect du guide GAMAT 2025 (CEREMA), et ouvre la perspective d’une version améliorée, ALBIOM-AG+, incluant une proportion faible de cendres de biomasse, reconnues pour leur propriétés pouzzolaniques.
