Fosroc Conplast UW is an underwater concrete admixture used to minimise washout of concrete placed underwater.
When added to concrete, Conplast UW produces a gel in the water phase which surrounds the cement particles and other fine components of the concrete mix and protects them from excessive washout both during placement and once the concrete is finally in position.
Chloride free blend of selected polymers supplied as a fine brown powder
Increases internal cohesion of the concrete mix, reducing the tendency of cement and other particles to be washed out of the concrete mix during placement
Facilitates the placement of concrete underwater by normal methods such as tremie pipe delivery
Once placed, concrete is more resistant to the action of moving water
Allows the production of higher quality and higher strength concrete underwater
Contains workability and setting control agents to assist in providing the levels of workability and working life necessary to allow control of placing
Unlike other anti-washout materials, Conplast UW also contains plasticising agents which counteract the effects of the increased cohesion necessary to minimise washout and allow normal workability levels to be maintained without the addition of extra water
Conplast UW provides a degree of retardation to the concrete mix, allows longer journey times from batching to placement and better control of the placing process
Complies with EN 934-2:T4 - Water Retaining Admixture
Conplast UW will not provide protection against washout in situations where there is a large amount of water turbulence such as where concrete is poured directly into water from a ready-mix truck or where incorrect use of a tremie produces interrupted concrete flow
In such situations water is forcibly mixed with the concrete
Conplast UW is combustible
Product Details
7491-906244
Data sheet
Manufacturer
Fosroc
For Use By
Professional Use
For Use On
Concrete
Single, Two or Three Pack
Single
Pack Size
4.5kg
Shelf Life (from date of manufacture)
18 months provided the product is kept in a dry store in the original, unopened packaging
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
Fosroc Conplast UW is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
Fosroc Conbextra UW is a non-shrink free flow or pumped cementitious grout for underwater installation conforming to the requirements of BS EN 1504-3 Class R4. Suitable for use underwater or in tidal zones where “wash out” would be a problem with conventional grouts. Recommended applications include stanchion baseplates, bridge columns, quay...