Fresh Concrete Density

Fresh Concrete Density

Fresh concrete density means the mass in kg per m³ of fresh, normally compacted concrete, including its remaining voids.

Given the same quantity of cement and aggregate, a lower fresh concrete density indicates a lower concrete strength because the density falls as the water and void content increases.

The fresh concrete density falls

• as the water content increases
• as the void content increases

The fresh concrete density increases

• as the cement content rises
• as the water/cement ratio decreases
• as the void content decreases