Mixing basics

Concrete mix ratio

Concrete mix ratios describe the relationship between cement, sand, aggregate, and water. Small non-structural batches may use simple ratio guidance, but structural work needs a specified mix.

Practical guidance

• Use bagged concrete for small repairs, post holes, and limited pours.
• Use ready-mix when volume, consistency, or placement speed matters.
• Avoid adding excess water because it can reduce strength and durability.

For driveways, footings, walls, and slabs with load requirements, confirm the specified strength and mix with a local supplier or professional.