1.1 The Horizontal project and the Work Package 7
The revision of the Sewage Sludge Directive 86/278/EEC, the upcoming Composting Directive on the
biological treatment of biodegradable waste and the Soil Monitoring Directive call for standards on sampling,
hygienic and biological parameters, methods for inorganic and organic contaminants, and for mechanical
properties of these materials.
1.2 Desk study subject
The Task Group 3 (TG3) of CEN/TC308/WG1 defined 3 physical states for sludge (CEN/TC308/WG1/TG3,
2000):
a) Liquid: sludge flowing under the effect of gravity or pressure below a certain threshold.
b) Paste-like: sludge capable of continuous flow under the effect of pressure above a certain threshold
and having a shear resistance below a certain threshold.
c) Solid: sludge having a shear resistance above a certain threshold.
1.3 Evaluation of needs for control of operations and material characteristics
1.3.1 Evaluation of needs for control of operation
1.3.2 Material characteristics
1.4 Search for existing standards and methods
The first action carried out consisted in searching for existing standards and non-standardised methods to be
possibly used or adapted for utilisation in the specific field of consistency evaluation.
1.5 Basic information
BS PD CEN/TR 15463:2007 Referenced Document
ASTM D4648-00 Standard Test Method for Laboratory Miniature Vane Shear Test for Saturated Fine-Grained Clayey Soil
EN 12350-5:1999 Testing Fresh Concrete - Part 5: Flow Table Test
EN 13286-4:2003 Unbound and hydraulically bound mixtures - Part 4: Test methods for laboratory reference density and water content; Vibrating hammer
EN 13395-1:2002 Products and systems for the protection and repair of concrete structures - Test methods; Determination of workability - Part 1: Test for flow of thixotropic mortars
ISO 13765-2 Refractory mortars - Part 2: Determination of consistency using the reciprocating flow table method
ISO 2137:1985 Petroleum products; Lubricating grease and petrolatum; Determination of cone penetration
BS PD CEN/TR 15463:2007 history
2007BS PD CEN/TR 15463:2007 Characterization of sludges. Physical consistency. Thixotropic behaviour and piling behaviour