research
Denser Concrete Left the Fungus Nowhere to Enter
Silica fume and a superplasticizer cut capillary porosity and prevented Aspergillus colonization in a 28-day test.
Summary
Silica fume and a superplasticizer cut capillary porosity and prevented Aspergillus colonization in a 28-day test.
Concrete made with 15 percent silica-fume replacement and a polycarboxylate superplasticizer reduced capillary porosity by 40.6 percent, to 4.39 percent, while improving mechanical properties. Control specimens developed Aspergillus biofilms after inoculation; the modified specimens remained free of colonization through 28 days. The result is a controlled materials experiment, not proof of indefinite resistance in field infrastructure.
Why it matters
Silica fume and a superplasticizer cut capillary porosity and prevented Aspergillus colonization in a 28-day test.
Limits and context
- The result is a controlled materials experiment, not proof of indefinite resistance in field infrastructure.
Key claims
Silica fume and a superplasticizer cut capillary porosity and prevented Aspergillus colonization in a 28-day test.
Qualification: The result is a controlled materials experiment, not proof of indefinite resistance in field infrastructure.
Evidence: source-2026-08-03-004
Sources
- Construction Materials: silica fume and concrete bioreceptivityEmerald · secondary reporting
Corrections
No corrections have been recorded for this story.