These are not ten interchangeable recipes
People often use “concrete mix” to describe several different things. Some terms identify material properties, while others describe how concrete is produced, placed, or used. A familiar name does not replace an approved mixture design.
The contract documents should state the required performance and acceptance criteria. The supplier, designer, contractor, and testing team then work from those requirements rather than a generic ratio found online.
Six mixture and performance terms
These categories describe density, ingredients, or fresh and hardened behavior. The exact materials and acceptance limits belong in the project specification.
- 1. Normalweight concrete: concrete made with aggregates that produce a conventional unit weight for structural and nonstructural uses.
- 2. Lightweight concrete: a lower-density category that may be structural or nonstructural depending on its materials and design.
- 3. High-strength concrete: a performance category with strength requirements set by the project, not a universal field recipe.
- 4. Air-entrained concrete: a mixture with a controlled air-void system selected for specified exposure and durability needs.
- 5. Fiber-reinforced concrete: concrete containing discrete fibers of a specified type and dosage; fibers are not automatically a substitute for reinforcing steel.
- 6. Self-consolidating concrete: concrete designed to flow and fill formwork without mechanical consolidation while remaining stable.
Four production, placement, and use terms
These names are often grouped with mixture types, but they describe delivery, placement, compaction, or an intended pavement function.
- 7. Ready-mixed concrete: concrete produced for delivery to the project; the approved mixture still controls its ingredients and performance.
- 8. Shotcrete: concrete or mortar conveyed through a hose and projected onto a surface, making this primarily a placement method.
- 9. Roller-compacted concrete: a low-slump or no-slump material placed and compacted with equipment for specified applications.
- 10. Pervious concrete: an open-void concrete system used where the design calls for water to pass through the pavement surface.
Choose from the drawings and field conditions
Selection depends on structural loads, environmental exposure, member geometry, reinforcing congestion, access, finish, drainage, testing, and curing. Delivery time and placement equipment also matter.
Before placement, confirm the approved mixture submittal, material certifications, testing plan, and delivery requirements. Proposed changes should go through the project approval process rather than being improvised at the truck or pump.
Costs, permit steps, codes, disposal requirements, and site conditions change. Confirm current requirements with the responsible agencies and qualified professionals before work begins.
Official sources
These agencies and public resources support the planning information in this article. Open the current source before making project decisions.
- American Concrete Institute: Concrete TerminologyOpen official website in new tab
- American Concrete Institute: ACI 318 Building Code PortalOpen official website in new tab
- American Concrete Institute: Shotcrete FAQOpen official website in new tab
- Caltrans Construction Manual, Section 4-90: ConcreteOpen official website in new tab




