Proportions
| Cement | 1 part |
|---|---|
| Sand | 3 parts |
| Typical strength | 2,000 psi · 14 MPa |
Grout
Grout mix ratio for block cores
Narrow block cores and reinforced cells are filled with a high-slump 1 : 3 cement : sand fine grout that flows around the bar.
Recommended mix
1 : 3cement : sand
Fine masonry grout — about 2,000 psi (14 MPa).
Planning reference. Typical proportions and strength for general work, not a structural mix design. Load-bearing and structural work must follow your local building code and a qualified engineer's specification.
Why this mix
A high-slump cement–sand grout (no coarse aggregate) for pouring into narrow grout spaces and small block cavities. Placed wet enough to flow around reinforcing bar.
Once you know the mix, the volume calculators tell you how much of it to buy — cubic yards, cubic metres and the bag count in every size.
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