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To place an order or to speak to our team call: 020 3974 0520

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Extended open life concrete

By slowing the setting process, extended open life concrete - also known as 'plasticised' or 'retarded' concrete - allows for easier placement and better control, even in challenging site conditions or hot weather. 

Our extended open life concrete provides the perfect solution for large-scale pours and complex projects, where maintaining a workable consistency over time is critical. Whether you're working with intricate formwork or require precise concrete placements, this concrete ensures consistent results, offering both flexibility and strength for your project.

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Features

  • Enhanced durability – plasticisers improve overall durability by reducing water content, resulting in a denser, stronger concrete with lower permeability and increased resistance to wear.
  • Extended 'open' life – plasticisers help maintain workability by reducing friction between particles, providing extended slump retention for longer working times.
  • Controlled setting times – retarders are added to delay setting times, allowing for better control during placement, particularly in hot weather or large pours.

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Benefits

  • Improved workability – the additives keep the mix fluid for longer, making it easier to handle and pour into complex formworks.
  • Enhanced performance – plasticisers and retarders help create a solid, consistent mix, resulting in concrete that lasts longer and performs better.
  • Easier finishing – improved consistency and longer workability make pouring and finishing easier, resulting in a smooth, uniform surface.
  • Reduced permeability – lower water content and a denser microstructure minimise voids in the hardened concrete, reducing permeability and protecting against water ingress and environmental damage.

Latest News

Aerial view of HS2's west London 'super hub' station at Old Oak Common_HS2-VL-27850.jpg

Capital Concrete Supplies HS2 Central Section in London

Bringing their industry expertise and state-of-the-art batching capability, Capital Concrete are supplying the Skanska, Costain and Strabag (SCS) joint venture for their HS2 works in London. The supplied material will be crucial for advanced tunnelling works stretching from Euston to Old Oak Common.

The project’s ‘Central Section’ in London is being solely supplied by Capital Concrete, which represents roughly a third of the total concrete needed for HS2 in London.

Concrete and screed calculator

Concrete cubic meters equality

Our concrete and screed calculator will help you determine the quantity of concrete or screed you need for your project. Please enter the Width, Length and Depth of the area, then click on the Calculate button.

Please enter your requirements below

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Where to find us

Head Office

Eclipse House, Eclipse Park, Sittingbourne Road, Maidstone, Kent ME14 3EN

t: 020 3974 0520

Click here to view or download the map of our site locations.

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Bow

Capacity: 60m3/hr, dry
Chapman Road, Bow,
London E9 5DW
t: 020 8986 6616

Covering all areas within an hour’s journey from our plant including: Enfield, Stratford, Woolwich, Holloway, Canary Wharf and Clerkenwell.

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Cricklewood

Capacity: 160m3/hr, wet
Cricklewood Railway Yard, 400 Edgware Road, Cricklewood
NW2 6ND
t: 020 8187 1560

Covering areas including: Wembley and Cricklewood, Finchley, Golders Green, Kilburn, Muswell Hill, Islington, Edgeware, Harrow, Old Oak Common, Acton and Paddington.

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Croydon

Capacity: 70m3/hr, wet/dry
Endeavour Way,
Beddington Farm Road,
Croydon, Surrey CR0 4TR
t: 020 8665 6348

Covering all areas within an hour’s journey from our plant including: Orpington, Bromley, Caterham, Epsom, Sutton and Wimbledon.


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Enfield

Capacity: 50m3/hr, dry
Jeffreys Road, Enfield EN3 7UA
t: 020 8805 8150


Covering all areas within an hour’s journey from our plant including: Cheshunt, Waltham Abbey, Enfield, Potters Bar, Palmers Green, Waltham Forest and Hoddesdon.


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Langley

Capacity: 60m3/hr, wet
Langley Station Road, Langley SL3 6ED
t: 01753 291935

Covering all areas within an hour’s journey from our plant including: Langley, Feltham, Staines, Kingston, Richmond, Brentford, Hayes, Heathrow, Slough, Maidenhead, Bracknell, Woking and Cobham.

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Rainham

Capacity: 80m3/hr, wet
Launders Lane, Rainham,
Essex RM13 9GJ
t: 01708 206839

Covering all areas within an hour’s journey from our plant including: Dagenham, Barking, Grays, Tilbury and Upminster.

 

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Romford

Capacity: 60m3/hr, wet/dry
Hainault Road, Little Heath,
Romford, Essex RM6 5SS
t: 020 8599 3929

Covering all areas within an hour’s journey from our plant including: Loughton, Enfield, Epping, Brentwood, Barking and Dagenham.

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Silvertown

Capacity: 200m3/hr, wet
Peruvian Wharf, North Woolwich
Road, Silvertown E16 2AB 
t: 020 3926 7551

Covering all areas within an hour’s journey from our plant including: Stratford, Woolwich, Holloway, Canary Wharf, Barking, London Bridge and Greenwich.

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Staines

Capacity: 100m3/hr, wet
Ashford Road, Laleham
Middlesex TW18 1QF
t: 01784 770270

Covering all areas within an hour’s journey from our plant including: Feltham, Staines, Kingston, Richmond, Brentford, Hayes, Heathrow, Slough, Maidenhead, Bracknell, Woking and Cobham.

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Wembley

Capacity: 300m3/hr, wet
Neasden Rail Siding,
The Rail Yard, Drury Way, 
Neasden NW10 0JJ
t: 020 8016 6764

Covering all areas within an hour’s journey from our plant including: Wembley and Cricklewood, Finchley, Golders Green, Kilburn, Muswell Hill, Islington, Edgeware, Harrow, Old Oak Common, Acton and Paddington.

Click here to see all our sites

Bow

Capacity: 60m3/hr, dry
Chapman Road, Bow,
London E9 5DW
t: 020 8986 6616

Covering all areas within an hour’s journey from our plant including: Enfield, Stratford, Woolwich, Holloway, Canary Wharf and Clerkenwell.

Cricklewood

Capacity: 160m3/hr, wet
Cricklewood Railway Yard, 400 Edgware Road, Cricklewood
NW2 6ND
t: 020 8187 1560

Covering areas including: Wembley and Cricklewood, Finchley, Golders Green, Kilburn, Muswell Hill, Islington, Edgeware, Harrow, Old Oak Common, Acton and Paddington.

Croydon

Capacity: 70m3/hr, wet/dry
Endeavour Way,
Beddington Farm Road,
Croydon, Surrey CR0 4TR
t: 020 8665 6348

Covering all areas within an hour’s journey from our plant including: Orpington, Bromley, Caterham, Epsom, Sutton and Wimbledon.


Enfield

Capacity: 50m3/hr, dry
Jeffreys Road, Enfield EN3 7UA
t: 020 8805 8150


Covering all areas within an hour’s journey from our plant including: Cheshunt, Waltham Abbey, Enfield, Potters Bar, Palmers Green, Waltham Forest and Hoddesdon.


Langley

Capacity: 60m3/hr, wet
Langley Station Road, Langley SL3 6ED
t: 01753 291935

Covering all areas within an hour’s journey from our plant including: Langley, Feltham, Staines, Kingston, Richmond, Brentford, Hayes, Heathrow, Slough, Maidenhead, Bracknell, Woking and Cobham.

Rainham

Capacity: 80m3/hr, wet
Launders Lane, Rainham,
Essex RM13 9GJ
t: 01708 206839

Covering all areas within an hour’s journey from our plant including: Dagenham, Barking, Grays, Tilbury and Upminster.

 

Romford

Capacity: 60m3/hr, wet/dry
Hainault Road, Little Heath,
Romford, Essex RM6 5SS
t: 020 8599 3929

Covering all areas within an hour’s journey from our plant including: Loughton, Enfield, Epping, Brentwood, Barking and Dagenham.

Silvertown

Capacity: 200m3/hr, wet
Peruvian Wharf, North Woolwich
Road, Silvertown E16 2AB 
t: 020 3926 7551

Covering all areas within an hour’s journey from our plant including: Stratford, Woolwich, Holloway, Canary Wharf, Barking, London Bridge and Greenwich.

Staines

Capacity: 100m3/hr, wet
Ashford Road, Laleham
Middlesex TW18 1QF
t: 01784 770270

Covering all areas within an hour’s journey from our plant including: Feltham, Staines, Kingston, Richmond, Brentford, Hayes, Heathrow, Slough, Maidenhead, Bracknell, Woking and Cobham.

Wembley

Capacity: 300m3/hr, wet
Neasden Rail Siding,
The Rail Yard, Drury Way, 
Neasden NW10 0JJ
t: 020 8016 6764

Covering all areas within an hour’s journey from our plant including: Wembley and Cricklewood, Finchley, Golders Green, Kilburn, Muswell Hill, Islington, Edgeware, Harrow, Old Oak Common, Acton and Paddington.