Concrete Flow Test – Why It Matters on Site Workability is not a guess; it is a measurable property. The concrete flow test is a key quality control method used to assess the consistency and flowability of concrete, especially for highly workable and self-compacting concrete (SCC). Purpose of the Concrete Flow Test ✔ Determines ease of placement without segregation ✔ Evaluates suitability for congested reinforcement zones ✔ Ensures uniform filling of formwork ✔ Reduces honeycombing and voids How

This is what placing concrete in ICF actually looks like. ICF needs a flowable mix — not dry, not sloppy. That’s why typical ICF pours target 6–7” slump (150–175 mm) and are properly vibrated. Why it matters: • Concrete needs to flow around rebar and webs • Vibration removes air pockets and honeycombing • Proper consolidation = full wall strength High slump doesn’t mean adding water. It means using the right mix design and admixtures, then placing it correctly. ICF pours fail when people treat t