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Home  >>  Products  >>  Hardness  >>  Concrete Test Hammer

Concrete Test Hammers


SilverSchmidt Concrete Test Hammer: EN 12504-2, EN 13791; ASTM C805; ROCT 22690

Original Test Hammer: EN 12504-2, EN 13791; ASTM C805; ROCK 22690; ACI 228.1R; RILEM TC-ISC



The Silver Schmidt OS8200 is as accurate, reliable, and versatile as ever - and now, connected, thanks to its optical measurement technology delivering Q-value measurements, paired with digital productivity features and user-friendly mobile apps.

The classic Original Schmidt hammer is the basis of every major rebound hammer testing standard worldwide. There are various models with different impact energies to cover a wide range of applications. They have a proven durability and quality compared with low cost copies.

Schmidt Concrete Test Hammer

 

Features

Original Schmidt Concrete Test Hammer

Type N Schmidt Test Hammer
is designed for testing concrete items 4” (100 mm) or more in thickness, or concrete with a maximum particle size less than or equal to 1.25” (32 mm). Type N hammer is also used for the testing of massive rock. Impact energy is 1.6 ft-lbs (2.207 Nm). Units have 1,450 psi to 18,150 psi (10 to 70 N/mm2) compressive strength. Testing Standards for N: ASTM C 805, D5873; BS 1881: Part 202

Type L Schmidt Test Hammer operates with significant lower impact energy, making this hammer the ideal option for testing thin walled items with a thickness between 2” and 4” (50 to 100 mm) or for testing small components. The Type L is suitable for testing cast stone components which are sensitive to impact. In rock mechanics, the Type L hammers are commonly used for classification testing of rock cores and brittle rock. Testing Standards for L: ASTM D5873; ISRM Suggested Method for Rebound Index of Rock Cores.

SilverSchmidt Concrete Test Hammer
Concrete strength and uniformity evaluation using patented optical rebound hammer technology
Schmidt hammers by Proceq, the inventor of rebound hammer technology, have long been the global benchmark for non-destructive compressive strength estimation. Silver Schmidt OS8200 is as accurate, reliable, and versatile as ever - and now, connected, thanks to its optical measurement technology paired with digital productivity features and user-friendly mobile apps.

Our patented optical technology delivers compressive strength measurements with a higher range and far lower dispersion than any classical rebound hammer; and our versatile connectivity increases operator productivity and makes instantaneous reporting possible, from anywhere, anytime.

  • Strength estimation at a fraction of the cost and lead time, and without the mess of coring
  • Best-in-class strength correlation
  • Applicable from fresh to high strength concrete
  • Instant report generation on the go
  • Long service intervals
  • Combination With Other Methods - Ultrasonic pulse velocity (SONREB) with Pundit 200
  • Connected digital hammer with instantaneous reporting and data sharing thanks to a user-friendly├é┬ámobile app (Apple® iOS or Android™)
  • Stand-alone digital hammer with automatic calculation of the rebound value.
  • Digital hammer wirelessly connected to a Bluetooth printer for direct print-out of test result
  • Silver Schmidt accuracy - The Q-value brings greater accuracy at higher strengths. Independent testing by the German Committee for Structural Concrete and the Bundesanstalt für Materialforschung und Prüfung (BAM) has consistently demonstrated that the Q-value featured in Silver Schmidt OS8200 is much better suited for working with high strength concrete. Furthermore, similar studies carried out in Germany, China and Japan have proven that the Q-value delivers tighter, more accurate correlations for custom material curves.
  • Original Schmidt Live mobile app
    • Flexibility for all applications - Correlation to custom materials in accordance with major standards. Apply user defined corrections for carbonation, form factors, etc.
    • Compliance to standards - Select standard units and form factor. Hammer verification management according to requirements of major standards. Automated EN13791 test region screening test report
    • Collaboration and reporting - Visual report generation using lists, bar charts and statistics. Single and multiple series export in PDF or CSV format. Logbook annotations for full traceability (geolocation, text, images, voice)

Technical Data

Original Smith Concrete Test Hammer Technical Data
Mechanical Data Type N Type L
Impact Energy: 2.207 Nm (1.63 lb ft) 0.735 Nm (0.54 lb ft)
Concrete Compressive Strength Range: 10 to 70 N/mm2 (1,450 to 10,152 psi)
Electrical Data
Display: Mechanical

SilverSchmidt Concrete Test Hammer Technical Data
Impact Energy: 2.207 Nm (N), 0.735 Nm (L)
10 to >100 N/mm2 (1,450 to >14,500 psi)
L-hammer with optional mushroom plunger: 5 to 10 MPa (725 to 1,450 psi)
Instrument Firmware: Automatic calculation of rebound value according to international standards
Display: Any compatible Apple® iOS device
Memory: Instrument memory > 20,000 impacts, Display memory - Memory of iOS or Android device
Connections: Low energy bluetooth, USB for charging and updates
Measurements: Impact angle independent
Displays the series on-screen as you work
Series validity checked automatically
Review an entire series
Delete impacts
Test region reporting
Select units, form factor and correlation curves
Create your own custom curves
Create custom curves databases for your own mixes
Report Generation: Single, multiple series, test region (uniformity, EN13791)
Languages: English, German, Japanese, Chinese, Korean, Spanish, Portuguese, Italian, French, Russian
Battery: Standard AAA, alkaline or rechargeable
Battery Lifetime: > 20,000 impacts between charges
Operating Temperature: 0° to 50° C

Instructions for Use

To operate the concrete test hammer first place the impact plunger against test surface and apply pressure until plunger disappears; the hammer will release.

The scale pointer reading gives rebound value in percent of the forward movement of the hammer mass.

Concrete Test Hammer Diagram

Applications

Original Schmidt Hammer

  • Paper (Type L)
  • Concrete
  • Geology
  • Uniformity testing
  • In-situ strength estimation
  • Rock testing
  • Large paper rolls

SilverShmidt Hammer

  • Fresh concrete strength estimation
  • Normal concrete strength estimation
  • High strength concrete strength estimation
  • Concrete uniformity testing
  • Custom correlation to compressive strength
  • Low strength (<5 Mpa) concrete testing
  • In-situ rock testing on massive rock (Type N)
  • Concrete testing on thin (less than 100 mm thick) samples (Type L)
  • Rock testing on cores according to ASTM D5873 (Type L)
  • Hardness testing of paper rolls (Type L)
  • Compressive strength estimation; concrete: 10 to 70 N/mm2/ 1450 to 10152 psi (Type N)
  • Screening of concrete to identify coring locations (Type N)
  • Uniformity testing of concrete (Type N)
  • Paper: Type L

Concrete Test Hammer Video


Prices

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Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
Item Number Item Prices

Original Schmidt Concrete Test Hammer - Test hammer, carrying case, grinding stone and operating instructions, (certificate included with HA-832003)

SilverSchmidt Hammer - Test Hammer, rechargeable AAA battery, micro-USB cable, grinding stone, carry strap, documentation, carry case

Original Schmidt Concrete Test Hammer
HA-832001 Schmidt Concrete Test Hammer (Type N psi scale) $1,005.00
HA-832003 Schmidt Concrete Test Hammer (Type N metric scale) 1,005.00
HA-834211 Schmidt Concrete Test Hammer (Type L metric scale) 1,345.00
Silver Schmidt Concrete Test Hammer
15039 SilverSchmidt OS8200 Type N $2,455.00
15040 SilverSchmidt OS8200 Type L 2,455.00



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