Pre-Cast Concrete Blocks
Scheme				Lab. Number
Location				Date Sampled			Equipment Check
Source				Date Tested			Calibration Check
Description				Operator
Test No: 335  :  BS 6717 Part 1 : 1993
				Use two sheet to record dimensions				Sheet No	of
DIMENSIONS
Block No.		1	2	3	4	5	6	7	8
Thickness (mm)        4 positions on each
Width (mm)                     3 positions on each
Length (mm)                 2 positions on each
Specification for each block		.	Thickness +/- 3 mm ;  Width +/- 2 mm;  Length +/- 2 mm
STRENGTH		Soaking Time (24 +/- 4 hrs)			Time in		Time Out
Plywood Checked for Knots
Block No.		1	2	3	4	5	6	7	8
Maximum Load (N)
Cross-Sectional Area   (mm^2)                   (See Appendix 3)
Compressive Strength (N/mm^2)
Width of Chamfer
Correction Factor =
See Overleaf
Corrected Strength (N/mm^2)
	Notes:	1. Report dimensions to nearest 1 mm
		2. Calculate crushing strength of each block to nearest 0.1 N/mm^2.
		Report corrected strength after applying factor to nearest 1 N/mm^2.
		3. 16 Blocks required for testing.
		4. Cross Sectional Area calculated to nearest 10 mm^2
	Checked by					Senior Technician
	Remarks