Superflow®
The SuperFlow® product range is Aggregate Industries’ line of high performance aggregates specifically designed to provide controlled water management within SuDS.
With their SuperFlow and SuperFlow Premium options, our products make any project flow easily from the very start. Plus, with constant technical monitoring and testing, it flows confidently into the future too.
Northern Region Office:
01524 738888
Midlands Region Office:
01455 288222
South/South East Regional Office:
0208 896 6820 opt 1
South West Regional Office:
01752 485200 opt 1
Scotland Region Office:
01698 870947
West Country Region Office:
01373 452002
SUPERFLOW® IN ACTION
Why CHOOSE SUPERFLOW® AGGREGATES?
The SuperFlow product range is a line of high performance aggregates specifically designed to provide controlled water management within Sustainable urban Drainage systems (SuDS).
The SuperFlow SuDS range is considered to be environmentally beneficial, causing minimal or no long-term damage. They are used within a succession of management practices, control structures and strategies designed to efficiently and sustainably drain surface water, while minimising pollution and managing the impact on the water quality of local water bodies.
Conforms to both British European standards BS EN13242 and BS EN12620 where applicable.
The materials are well graded, crushed angular particles allowing for optimal compaction and void retention for controlled water flow.
The aggregate strength within SuperFlow range ensures the long term integrity of the SuDS system is maintained.
Climate change is the main threat for us as a society as we live with the consequences of global warming. Extreme weather events, like heat waves, storms and droughts, are already more intense and more present in our lives. This presents us with the greatest challenge of our time.
In the UK, ever-changing weather systems, increasing urbanisation and rapid run-off have put a tremendous strain on conventional storm water drainage systems. This has resulted in sewers and culverts becoming overloaded, causing floods and contaminating natural waterways.
Sustainable Drainage Systems (SuDS) provide an alternative approach to traditional drainage systems. They mitigate many of the adverse impacts of storm water run-off on the environment in terms of both volume and pollutants.
With a breadth of expertise and solutions, Aggregate Industries has always been at the forefront of research work regarding materials for use in SuDS systems. Initially as part of the research team contributing to PPR 482-A pilot scale trial of reservoir pavements for Drainage Attenuation published by the Transport Research Laboratory (TRL) investigating the use of SuDS solutions. This subsequently contributed to HD221/18 within the Design Manual for Roads and bridges. We also contributed to CIRIA’s C753 document – “The SuDS Manual”.
Our SuDS solutions work by temporarily retaining and slowly releasing rainfall back into the waterways in a controlled manner. This helps prevent floods, while allowing natural processes to break down pollutants which would otherwise impact further downstream.
SuDS became a legal consideration for all new developments per the Flood & Water Management Act 2010 and was integrated into Building Regulations in 2015.
SUPERFLOW® PREMIUM
Superflow 63
Aggregate Type: Coarse crushed angular rock
Application: Lower sub-base reservoir / capping layer
Drainage Solution: Infilta Block Paving
SuperFlow 63 is a robust starter aggregate which works as the initial lower reservoir or capping layer within the SuDS pavement construction. The product offers optimal voids due to its angular shape allowing for controlled water storage and flow, while it’s natural strength ensures the long term integrity of the SuDS solution is maintained.
Superflow 20
Aggregate Type: 4/20mm crushed angular rock
Application: Upper sub-base reservoir layer
Drainage Solution: Hand laid SuperDrainasphalt, Infilta Block Paving and Hydromedia
SuperFlow 20 is a coarse graded aggregate produced to British European standard and works as a reservoir sub-base layer, offering controlled rain water retention within the SuDS pavement construction. SuperFlow 20’s specific grading and low degradation value results in a durable material which is easy to place and compact, while ensuring water flow is slowed and released in a more sustainable and environmentally friendly manner. The excellent physical properties and drainage characteristics of SuperFlow 20 make it an integral component to many Sustainable Drainage Systems.
Superflow 20 Data Sheet
Superflow 6
Aggregate Type: 2/6 Crushed angular stone
Application: Laying course / bedding aggregate
Drainage Solution: Infilta block paving Aggregate Industries
SuperFlow 6 is a high performance laying course aggregate specifically designed to provide controlled water management within Sustainable Drainage Systems (SuDS). SuperFlow 6 provides a stable flat laying surface, while retaining the optimal level of voids for consistent water flow. This carefully graded aggregate, with it’s natural strength and interlocking properties ensures both the long term integrity of the pavement and the excellent drainage characteristics are maintained.
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SuperFlow SuDSAgg
Aggregate Type: 0/40mm crushed rock
Application: Sub-base reservoir layer
Drainage Solution: SuperDrainasphalt and Hydromedia
SuperFlow SuDSAgg is a well graded, reduced fines, crushed aggregate with a maximum nominal size of 40mm. SuperFlow SuDSAgg is designed to meet the structural requirements of a Foundation Class 2 material as defined in the Design Manual for Roads & Bridges, with a void content of 30% or greater to ensure optimal water management. Its structural stability means it can be used independently or as a stabilisation layer over Aggregate Industries’ SuperFlow 20 when used under paver laid SuperDrainasphalt.
Working in partnership with our in-house surfacing division, Aggregate Industries can offer the complete asphalt SuDS solutions.
Superflow SuDSAgg Data Sheet
SuperFlow JointAgg
Aggregate Type: Crushed stone grit
Application: Brushing in grit / Jointing sand
Drainage Solution: Infilta block paving Aggregate Industries
SuperFlow JointAgg is a high performance finishing aggregate specifically designed for brushing into block pavement joints. This aesthetically pleasing product offers excellent free draining characteristics due to its low fines content, while it’s natural strength ensures the long term integrity of the SuDS is maintained for a refined, yet functional pavement finish.
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Superflow®
0/40mm open grade fill aggregate
Aggregate Type: 0/40mm Crushed Rock
SuperFlow Alternative: SuperFlow SuDSAgg
Application: Subbase reservoir layer
Drainage Solution: Porous Sub base
This aggregate is an open graded material that meets the requirements of SHW 800 clause 805 and the grading specification set out in BS EN 13242/13285 specification. This product has fewer fines compared to other sub-base solutions like Type 1. It is designed to allow water to drain freely. When compared to our SuperFlow alternative the SuperFlow SuDSAgg this product has no requirement for voids or permeability.
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2/6MM aggregates
Aggregate Type: 2/6.3mm crushed angular rock
SuperFlow Alternative: SuperFlow 6
Application: Laying course aggregate
Drainage Solution: used as a laying course for block paving
2/6 aggregate is what is classed as 6mm single size aggregate this material is designed to BS EN standards and the grading requirements and physical properties that are required of it. This is not sold with any SuDS requirements.
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4/20MM Aggregate
Aggregate Type: 4/20mm crushed angular rock
Superflow Alternative: SuperFlow 20
Application: Bedding layer for Block paving
Drainage Solution: sub base for use under Block Paving,
4/20 is crushed aggregate ranging in size from 4-20mm and complies to both BS EN 13242 and 12620, this means it can be used in applications that call for the use of material compiling to BS 7533 for Block paving uses. This product is used as a bedding layer for block paving applications. 4/20 has no additional requirements besides the requirements with BS EN standards so there is no guarantee of voids or the permeability of the aggregate when compared to the SuperFlow alternative.
10/63mm Aggregate
Aggregate Type: 10/63mm crushed angular rock
Superflow Alternative: SuperFlow 63
Application: Lower subbase layer
Drainage Solution: Lower sub base layer for use under Block Paving,
10/63mm has historically been sold as part of the sustainable urban drainage system sub-bases and was originally designed as an alternative to Forterra 10-63. The specification for this material was set to follow Forterra’s own grading specifications. This is sold only to meet the required grading specification and has no additional requirements that SuperFlow 63 would meet.
1/4mm aggregate
Aggregate Type: 1/4mm crushed aggregate
Superflow Alternative: Superflow Joint agg
Application: Brushing in grit
Drainage Solution: Jointing aggregate for Block paving
1/4mm crushed aggregate is designed to meet BS EN standards and ranges in size from 1-4mm and is perfect for a range of general construction uses, including Jointing aggregate.
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Specification
- Resistance to fragmentation: BS EN 1097-2
- Acid Soluble Sulphate (AS0.2): BS EN 1774-1
- Magnesium Sulfate Soundness: BS EN 1367-2
- SuperFlow 6 complies with the requirements of BS7533-13 & the CIRIA document (C753)
