Compressive Strength MPa
Testing Tasmania
Silver Schmidt hammer rebound testing for MPa to AS/ASTM standards — rapid, non-destructive in-situ strength estimation.
Schmidt Hammer Testing Tasmania:
Concrete Strength
The Schmidt hammer evaluates the rebound of a spring-loaded mass that strikes the concrete surface. Delivering an impact with a specific energy level, the rebound distance varies based on the concrete's surface hardness, which directly correlates with the compressive strength of the concrete. This allows our field technicians to provide fast, reliable assessments on-site without invasive drilling or damage.
Using precise calibration and conversion charts, our geophysics team translates the rebound measurements into highly accurate estimates of compressive strength expressed in kPa or MPa. To ensure compliance for civil engineering and infrastructure projects, all of our Schmidt hammer testing protocols, data analysis, and structural reporting strictly align with ASTM C805-02 and ASTM D5873 industry standards.
This non-destructive testing approach is well-suited for evaluating the on-site uniformity of concrete, identifying structural areas of substandard quality or degradation, and approximating the progression of in-situ strength over time. Spaulding Geophysics delivers this expert concrete testing for commercial developments, bridge assessments, and civil construction assets spanning Hobart, Launceston, Devonport, Burnie, and across Tasmania.
When Strength
Testing is Required
Strength measurements are needed for a range of purposes — from quick quality verification on fresh pours to evaluating the residual capacity of aging infrastructure before reuse or sale.
Strength
Distribution Maps
Test results are spatially organised by structural element and zone, producing strength distribution maps that immediately identify conforming and non-conforming areas — enabling targeted intervention rather than blanket remediation.
| Deliverable | Detail |
|---|---|
| Rebound data table | Raw R values, corrected readings, and MPa estimates per test point |
| Strength map | Colour-graded plan showing strength distribution across the structure |
| Zone statistics | Mean, standard deviation and characteristic strength per test zone |
| Standards compliance | Comparison against specified design strength or acceptance criteria |
| Recommendations | Zones requiring further investigation, coring, or remediation |