short info

Automatic digital rebound hammer is an instrument used for non-damage testing and evaluation of compressive strength of hardened concrete in building structures. It can detect and record rebound value, carbonization depth value, Angle, test surface and other parameters.

Standard

As Per IS Standard

Model

VSLIC-C263

Origin

Indian

Make/ OEM

VERTEX

  • Description

  • SPECIFICATIONS

  • FEATURES

  • VIDEO
  •  New
    WORKING PRINCIPAL

OVERVIEW

Automatic digital rebound hammer is an instrument used for non-damage testing and evaluation of compressive strength of hardened concrete in building structures. It can detect and record rebound value, carbonization depth value, Angle, test surface and other parameters. The strength of the component can be inferred immediately after testing.

Product Features:

  • New upgrade, adopting three-proof shell design, waterproof, dustproof and shockproof.
  • Using a new MOS image sensor to subvert the traditional signal acquisition method, the data is accurate and reliable.
  • The rebound value is displayed in the form of numbers and scales, and the indication values are consistent.
  • Simple and convenient operation, according to the component management data, the strength is estimated, and the carbonization value can be recorded on site.
  • One main machine can be equipped with multiple mechanical rebound hammers to ensure continuous testing.



SPECIFICATIONS

Host parameter Waterproof level: IP65 Screen size: 5 inches Resolution: 160 × 128 Volume: 195 × 140 × 45mm Weight: 0.8kg Linear value of rebound value sensor: ±0.5 MOS image sensor Storage: 240 components Large capacity lithium battery, working time is greater than 10h
Mechanical rebound Nominal kinetic energy: 2.207J Stretch tension spring stiffness: 785N/m Hammer stroke: 75mm, Rebound value of steel anvil rate setting: 80±2 Weight: 1kg
Print function Support for micro printers (optional)
Working environment Temperature: -10 ° C ~ 40 ° C Humidity: <90% RH
Packing specification Material: engineering plastic Volume: 420 × 140 × 335mm

Weight: 6kg

FEATURES

  • New upgrade, adopting three-proof shell design, waterproof, dustproof and shockproof.
  • Using a new MOS image sensor to subvert the traditional signal acquisition method, the data is accurate and reliable.
  • The rebound value is displayed in the form of numbers and scales, and the indication values are consistent.
  • Simple and convenient operation, according to the component management data, the strength is estimated, and the carbonization value can be recorded on site.
  • One main machine can be equipped with multiple mechanical rebound hammers to ensure continuous testing.
  • The software is powerful, can be built into a variety of measurement standards, and export a variety of test reports.
  • Optional printer, can directly print test data on site.

PRODUCT VIDEO

WORKING PRINCIPALNew

Certainly, here is a basic operating manual for a rebound test hammer, commonly used for non-destructive testing of concrete structures:

Rebound Test Hammer Operating Manual

1. Introduction: The rebound test hammer is a portable device used to assess the surface hardness and, indirectly, the compressive strength of concrete structures. This test is non-destructive and widely employed in construction and civil engineering for quality control and structural assessment.

2. Safety Precautions:

  • Always wear appropriate personal protective equipment, including safety glasses and gloves.
  • Ensure a safe distance from other workers during testing to prevent accidents.
  • Handle the rebound test hammer with care to avoid damage to the instrument or injury to the operator.

3. Equipment Setup:

  • Ensure the rebound test hammer is in good working condition and calibrated regularly.
  • Adjust the instrument’s impact energy, typically indicated as “N” for normal and “L” for low. Select the appropriate setting based on the expected strength of the concrete.
  • Ensure that the hammer’s plunger and the concrete surface are clean and free from loose particles or debris.

4. Test Procedure: Follow these steps to perform a rebound test:

a. Hold the rebound test hammer firmly with one hand, making sure not to touch the plunger during testing.

b. Position the instrument perpendicular to the concrete surface at the location to be tested. Ensure the plunger makes direct contact with the surface.

c. Apply a firm, quick, and consistent force to the instrument’s trigger with your other hand. This causes the plunger to impact the concrete surface.

d. After impact, the rebound test hammer will rebound off the surface. Observe and record the rebound distance (R) indicated by the scale on the instrument. This scale typically ranges from 10 to 100, with higher values indicating higher concrete hardness.

e. Repeat the test at multiple locations to obtain a representative assessment of the concrete hardness.

5. Interpretation of Results: The rebound distance (R) obtained from the instrument needs to be correlated with the compressive strength of the concrete. This correlation can be established using calibration curves provided by the manufacturer or local standards.

6. Maintenance:

  • Clean the instrument after each use to prevent debris from affecting future measurements.
  • Periodically calibrate the rebound test hammer according to the manufacturer’s recommendations.
  • Inspect the instrument for any damage or wear, particularly the plunger and the rebound scale.

7. Reporting: Record the rebound values obtained during testing and correlate them with the concrete’s compressive strength. Include all relevant details such as test locations and any anomalies observed during testing.

Always refer to the specific manufacturer’s instructions for your rebound test hammer, as operating procedures may vary slightly between models. Proper maintenance and calibration are essential to ensure accurate and reliable results in concrete hardness assessments.

8. Troubleshooting: If you encounter issues during testing, such as inconsistent rebound values or unusual readings, consider the following troubleshooting steps:

  • Ensure that the instrument is calibrated correctly, and the impact energy setting matches the concrete’s expected strength.
  • Check the cleanliness and condition of both the plunger and the concrete surface.
  • Verify that the instrument is held perpendicular to the concrete surface during testing.
  • Avoid testing areas with surface coatings, paint, or other materials that could affect the rebound measurement.
  • If you continue to experience issues, consult the manufacturer’s manual or seek assistance from a qualified technician.

9. Best Practices: To ensure the accuracy and reliability of your rebound test results, consider these best practices:

  • Conduct tests at various locations on the concrete surface, especially in areas where variations in concrete quality are suspected.
  • Maintain a testing log that includes details like the test location, date, time, operator, and any unusual conditions observed during testing.
  • Perform regular maintenance and calibration to keep the rebound test hammer in optimal working condition.
  • Follow established standards and guidelines for rebound testing, such as those provided by ASTM International or relevant national standards.

10. Conclusion: The rebound test hammer is a valuable tool for assessing the surface hardness and indirectly estimating the compressive strength of concrete structures. When used correctly and in conjunction with proper calibration and interpretation, it can provide valuable insights into the quality and condition of concrete elements.

Always prioritize safety during testing, and adhere to safety precautions and guidelines to minimize the risk of accidents or injuries. Regular maintenance and operator training are essential to ensure accurate and consistent results.

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