Admix Specification

Every project is designed & specified individually and tailored to the most suitable design specification for each project. This design and specification is created for both new build projects where Xypex Admix is being used and also on remedial projects where both concrete and other substrates require waterproofing, such as masonry etc. Factors considered include, but are not limited to, joint details, dosage rates, most suitable products, pour sizes, site service and QA which can be project specific with NBS style specifications if required.

To guide you through the specification process each area is explained on the following pages such as standard joint details, NBS type specification and coverage of materials. However, please contact us so a confirmed design and specification can be issued for your unique project.

For a project specific design and specification when utilising Xypex Admix please contact the SMR Projects Technical Department.

Xypex Admix is recommended for:

  • Reservoirs
  • Sewage and Water Treatment Plants
  • Secondary Containment Structures
  • Tunnels and Subway Systems
  • Underground Vaults
  • Foundations
  • Parking Structures
  • Swimming Pools
  • Pre-Cast Components



Xypex Admix C-1000 NF (No Fines Grade): 1% - 1.5% by weight of cement

Xypex Admix C-500 NF (No Fines Grade): 1% - 1.5% by weight of cement

Note: Under certain conditions, the dosage rate for No Fines Grade may be as low as 0.8% depending on the quantity and type of total cementitious materials.

Consult with SMR Projects Technical Department for assistance in determining the appropriate dosage rate and for further information regarding enhanced chemical resistance, optimum concrete performance, or meeting the specific requirements and conditions of your project.

Please view our Downloads page for links to Joint Details & Technical Drawings & Method statements



Xypex is a global product, so application methodology may differ from region to region. Please view this video as an indicative presentation only. Please contact us for specific information on 01295 279747.