
Laboratory Test Sheet AGGREGATE IMPACT VALUE: BS 812 Section 111: 1990 This Standard has being partially replaced by the following British Standard BS EN 1097-2 2010 Tests for Mechanical and Physical Properties of Aggregates Method of Determination of Resistance to Fragmentation
Client				Lab.Ref
Client Ref.				Job No.
Supplier				Source
Location				Date
Material Type				Date Format
Material Name				Spec
				AggType


Method 2 Soaked			Test No	Test No	Test No	Test No
			1	2	3	4
Mass of Tray
Mass of Tray + Sample
Mass of Tray + Residue
Mass of Sample for Test
Time in Water
Time out of Water
Number of Blows (5 -15) (n)
Tray No
Time in Oven
Time out of Oven
Mass of Tray + Dry Sample
Mass of Dry Sample (M)
Mean Retained on 2.36 sieve (M1)
Mean Passing the 2.36 sieve (M2)
M1 - M2
% Fine (m) = (M1/M2) * 100
Aggregate Impact Value (AIV) = 15 * m/n
Notes
1. If M1 - (M2 + M3) > 1g then discard and retest
2. If % Fines (m) <5 or > 20 then retest with either more or less blows.
Comments

	Operator		Checked		Approved