Concrete Grout Calculator
This concrete grout calculator square feet workflow matches how masons estimate: wall area × a per-100-ft² grout factor for the block size, scaled by which cells get filled — from vertical-bar cells at 48 inches to solid grouting.
Como usar esta calculadora
- Insira suas dimensões — pés para comprimentos, polegadas para a espessura.
- Ajuste as opções — porcentagem de desperdício, tamanho do saco e o preço local do concreto.
- Leia seus resultados — volume, sacos, peso e custo são atualizados ao vivo enquanto você digita.
A fórmula
Grout (yd³) = wall ft² ÷ 100 × factor × cell fraction. Factors per 100 ft² solid: 6" = 0.93, 8" = 1.12, 10" = 1.30, 12" = 1.73 yd³ Exemplo resolvido: A 300 ft² wall of 8 in block, cells grouted at 32 in o.c.: 3 × 1.12 × 0.25 = 0.84 yd³ of grout.
Core-fill grout is soupier than concrete — high slump (8–11 in), pea-gravel aggregate — so it flows down the cells and around rebar. Order "masonry core fill grout," not standard mix, from the plant.
Partial grouting is the norm: only cells containing vertical reinforcement get filled, typically at 16–48 inches on center, plus bond beams. The cell-spacing dropdown applies the standard fractions to the solid-grout factor.
Bond beams add volume this calculator doesn't include: about 0.08 ft³ per linear foot for an 8-inch bond beam course — add one course factor per bond-beam row.
Perguntas frequentes
Perguntas comuns sobre a concrete grout calculator.
How much grout to fill 8 inch block?
Solid grouted: ≈ 1.12 yd³ per 100 ft² of wall (about 0.25 ft³ per block). Partial grouting scales by cell spacing — a quarter of that at 32 in o.c.
Can I use regular concrete for core fill?
Not standard mix — the 3/4 in aggregate bridges in the cells. Use masonry grout (ASTM C476) or a pea-gravel mix at 8–11 in slump.
How many blocks per 100 square feet?
About 112 standard 8 × 16 in blocks per 100 ft² of wall.
Does this include bond beams?
No — add ≈ 0.08 ft³ per linear foot for each 8 in bond beam course on top of the cell grout.
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