Logo
Login Sign Up
Current Revision

BSI BS 1881-202:1986

Testing concrete -- Recommendations for surface hardness testing by rebound hammer
Best Price Guarantee
Instant

$195.75

2-5 Days

$195.75

SAVE 10%

$352.35


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


View in Library
or
British Standards Institution Logo

BSI BS 1881-202:1986

Testing concrete -- Recommendations for surface hardness testing by rebound hammer

PUBLISH DATE 1986
PAGES 8
BSI BS 1881-202:1986

WITHDRAWN, 8/15/2001

Functioning of rebound hammers: The rebound hammer measures the surface hardness of concrete by the principle of rebound of a spring-loaded mass impacting a concrete surface.

Applications: It is primarily used for non-destructive testing of concrete to assess uniformity, estimate compressive strength, and detect surface defects.

Factors influencing readings: These include surface smoothness, moisture content, age of concrete, type of cement, carbonation, temperature, and the angle of impact during testing.

Method of calibration: Calibration is done using a standard calibration test block of known hardness to ensure accuracy and consistency of rebound numbers.

Testing procedure: The procedure includes:

  • Cleaning the test surface
  • Placing the rebound hammer perpendicular to the surface
  • Applying the impact and recording the rebound number
  • Taking multiple readings at different points
  • Calculating an average rebound value for assessment

Reporting of results: The results should detail the location of test points, rebound numbers obtained, average values, any deviations noted, and an interpretation of concrete quality based on standard correlations.

SDO BSI: British Standards Institution
Document Number 1881-202
Publication Date Feb. 28, 1986
Language en - English
Page Count
Revision Level
Supercedes
Committee B/517
Loading...

Failed to load document history.

Publish Date Document Id Type View