Sediment
Sediments are; ‘...the layers of particles that cover the bottom of water bodies such as lakes, ponds, rivers and reservoirs.’
Sedimentation is; ‘The process of deposition and consolidation of suspended material carried by water, wastewater or other liquids by gravity.'
Ref The SuDS Manual (C753), published by CIRIA in 2015.
Till is an unsorted glacial sediment deposited directly by a glacier. Ref The HS2 London-West Midlands Environmental Statement, Glossary of terms and list of abbreviations, DETR 2013.
Groynes in coastal engineering (CIRIA C793), published by CIRIA in 2020, defines cohesive sediment as: ‘Sediment containing significant proportion of clays, the physico-chemical properties of which cause the sediment to bind together.’
It defines sediment grading as: 'Distribution defined by nominal and extreme limits with regard to size or mass of individual sediment grains.'
And sediment transport as: 'The movement of a mass of sedimentary material by the forces of currents and waves. This can be either perpendicular (cross-shore) or parallel (longshore) to the shoreline.'
Geoarchaeology, Using Earth Sciences to Understand the Archaeological Record, published by Historic England in 2015, defines sediment as: ‘a collection of rock, mineral and/or organic particles that has been moved from their original source and redeposited elsewhere by natural or human agencies.’
[edit] Related articles
Featured articles and news
Moisture, fire safety and emerging trends in living walls
How wet is your wall?
Current policy explained and newly published consultation by the UK and Welsh Governments.
British architecture 1919–39. Book review.
Conservation of listed prefabs in Moseley.
Energy industry calls for urgent reform.
Heritage staff wellbeing at work survey.
A five minute introduction.
50th Golden anniversary ECA Edmundson apprentice award
Showcasing the very best electrotechnical and engineering services for half a century.
Welsh government consults on HRBs and reg changes
Seeking feedback on a new regulatory regime and a broad range of issues.
CIOB Client Guide (2nd edition) March 2025
Free download covering statutory dutyholder roles under the Building Safety Act and much more.
AI and automation in 3D modelling and spatial design
Can almost half of design development tasks be automated?
Minister quizzed, as responsibility transfers to MHCLG and BSR publishes new building control guidance.
UK environmental regulations reform 2025
Amid wider new approaches to ensure regulators and regulation support growth.
The maintenance challenge of tenements.
BSRIA Statutory Compliance Inspection Checklist
BG80/2025 now significantly updated to include requirements related to important changes in legislation.
Shortlist for the 2025 Roofscape Design Awards
Talent and innovation showcase announcement from the trussed rafter industry.