Life Cycle Assessment (LCA) in construction and why it matters
Understanding how environmental performance of building materials shapes project decisions, approvals and outcomes.
What is an LCA in building projects?
A Life Cycle Assessment evaluates the environmental impact of a building material or product over its entire life cycle, from raw material extraction to end-of-life disposal or recycling.
Material production and processing
Transport and logistics
Construction and installation
Use phase and maintenance
End-of-life, demolition, recycling or disposal
LCA results are increasingly decisive in permits, tenders and sustainability compliance. In many European markets, construction projects cannot proceed without demonstrating acceptable environmental performance of the materials used.
Where current building materials run into problems
Conventional concrete carries a high embodied environmental impact, primarily due to cement production. While the industry has made efforts to reduce cement content, this alone is often not sufficient to meet increasingly stringent LCA thresholds.
Many materials marketed as "low-carbon" alternatives fail once durability, mechanical performance or full life-cycle impacts are properly assessed. Improving one parameter often worsens another.
Improving one parameter often worsens another. LCAs expose this trade-off.
Why biobased materials often don't solve the problem
The idea of using plant-based fibres in concrete is not new. However, most attempts have encountered fundamental challenges:
Untreated plant fibres absorb water, weakening the composite
Fibres degrade in the alkaline environment of cement
Material performance becomes unpredictable over time
Many biobased concretes fail technical or regulatory review
These failures have created scepticism around biobased construction materials, often justified. The challenge is not the concept, but the execution.
How Econcreed-enabled materials can improve LCA outcomes
Econcreed provides a patented fibre treatment technology that enables the reliable use of elephant grass (Miscanthus) fibres in mineral binders such as cement and concrete.
Partial substitution
Replace mineral components with treated biobased fibres
Reduced impact
Lower environmental impact per functional unit
Predictable performance
Consistent results over the product's intended lifetime
This can improve LCA outcomes for concrete products, not by replacing the binder, but by enabling a more efficient material composition with lower overall environmental impact.
Why this matters at project level
Improved LCA performance translates directly into practical project advantages.
Meet thresholds
Satisfy environmental performance criteria set by regulators and certification bodies
Reduce redesign cycles
Avoid costly material substitutions late in the design process
Improve tender competitiveness
Score higher on sustainability criteria in public and private procurement
Lower approval risk
Reduce the likelihood of permit delays or rejections due to environmental performance
"In many projects, material LCA performance determines whether construction can proceed at all."
Relationship to carbon storage
Some Econcreed-enabled materials also store biogenic carbon, CO₂ absorbed by elephant grass during growth that remains locked in long-life construction products.
Carbon storage is additional. It is not required for LCA benefits
LCA improvements stand on their own, independent of carbon claims
Carbon certification is a separate, optional process