How is grout volume estimated for masonry core filling?

Core volume = number of cores × core area × wall height × fill factor (typically 0.85–0.95 accounting for blockouts and obstructions). For 8-inch CMU with 3×2.5 inch cores at 40 cores/m²: volume ≈ 0.03 m³/m² per course. Shrinkage allowance of 5% per ASTM C476. Grout slump should be 200–280 mm for free-flow per ASTM C476 Section 4.

What mix design is used for anchor bolt grouting?

Non-shrink cementitious grout per ASTM C1107 Grade B or C: minimum 28-day compressive strength ≥ 28 MPa (4000 psi). Flowable consistency with w/c ≈ 0.35–0.45 plus expansion additive. Annulus volume V = π/4 × (D²hole - D²bolt) × L. For injection grouting into rock fractures, ultrafine cement (D95 < 15 μm) may be required for penetration into fine fractures per ASCE Grouting Committee.

Grout Volume Estimator

Estimate grout volume and mix quantities for masonry core filling, anchor bolt grouting, post-tensioning duct filling, and soil/rock grouting applications.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)

σy — Normal Stress Y (MPa)

τxy — Shear Stress (MPa)

⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.

How to Use

Enter the values for the patient or scenario you are assessing. Estimate grout volume and mix quantities for masonry core filling, anchor bolt grouting, post-tensioning duct filling, and soil/rock grouting applications. Use the grout volume estimator result to inform your clinical assessment.

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Frequently Asked Questions

How is grout volume estimated for masonry core filling?

What mix design is used for anchor bolt grouting?