CIR-BASE® and CIR-DRAIN® – Circular Application Frameworks
STEP BV has developed CIR-BASE® and CIR-DRAIN® as application frameworks supporting the use of alternative and secondary material streams in industrial and construction contexts.
​
These frameworks enable industries to optimise material use while ensuring that final applications comply with applicable regional, national and European regulations.
​
End-Product Compliance
CIR-BASE® and CIR-DRAIN® are not positioned as standalone construction products.
​
They define how materials can be used as functional components within broader applications.
​
Compliance, certification and liability are assessed at the level of the final application.
​
The frameworks do not define materials as products but describe their integration into compliant, project-specific applications.
​
CIR-BASE®
Framework for structural and load-bearing applications (e.g. foundations, sub-bases or infrastructure layers), where granular, alternative and secondary material streams are applied in controlled proportions to achieve required mechanical performance and durability.
​
CIR-DRAIN®
Framework for permeable and drainage-oriented applications, where sand-based and alternative and secondary material streams contribute to water infiltration, drainage and hydraulic performance.
​
Regulatory & Implementation Approach
CIR-BASE® and CIR-DRAIN® are implemented as part of project-specific applications, in accordance with applicable product, environmental and construction regulations.
​
Where relevant, material qualification and classification are assessed by competent authorities.
​
Material composition, origin and application parameters are defined on a project-specific basis, considering material characteristics, performance requirements and the applicable regulatory framework.
​
Objective
​To support the uptake of circular material solutions, reduce dependency on primary raw materials, improve cost efficiency through local sourcing, and contribute to COâ‚‚ reduction — in line with applicable regulatory frameworks.