BRE Screed Tester

BRE Screed Tester πŸ‘‰Is your screed fit for purpose? Cracking, crumbling, dusting?

With less than 1% of all screed tested for in situ crushing resistance, are we storing up problems for the future? 

As defined in BS8204-1:2003, the BRE Screed Tester is used to determine a screeds resistance to the test.   

The screed is subjected to repeat impact blows by dropping a weight vertically down a guide onto a hardened steel anvil in contact with the screed surface.  The depth of the indentation from the resulting impact after four blows is measured. 

The sample area needs to be flat, smooth, and free from all loose dirt and grit.  Once the area is selected, the micrometeor measures the surface, and that measurement is recorded (can be plus or minus and will need to be added or subtracted from the test results). 

The rod is positioned vertically with the bubble nicely centred, ensuring it drops with its full force.  The weight is dropped four times in the same position, and then the indentation is measured. 

Depending on the category of the floor 

A.  Heavy Duty Commercial 

B. General Commercial 

C. Domestic/Light 

To pass the indentation needs to be the following or less: 

A. Bonded/unbonded/floating 3mm 

B. Bonded/unbonded/floating 4mm 

C. Bonded/unbonded  5mm   Floating 2.5mm using 2KG weight 

  • Test sampling is not less than 3 tests in areas less than 20m2 
  • And 3 tests on each 20m2 -25m2 of screed laid in larger areas 
  • Corridors should be tested at 3m – 5m intervals 

All tests should avoid bay joints and cracks. Make sure they are no nearer than 300mm.