Since that time, Sika has continually improved on these technologies and introduced more products to suit customer needs. With both hydrophobic, pore blocking and crystalline products available, Sika's solutions will make your next project watertight for the duration of its service life.

The two core product technologies in permeability reducing admixtures are hydrophilic crystalline and hydrophobic pore blocking. Sika is the only manufacturer to offer both product technologies!Sika's hydrophilic crystalline permeability reducing admixture(Sika WT-240 P) and hydrophobic pore blocking admixture (SikaWatertight Concrete Powder) can be used to effectively reduce concrete permeability in hydraulic structures to retain water or keep it from infiltrating conditioned spaces. Integral admixtures provide expedited structure completion and reduced labor costs when compared to traditional waterproofing construction using loose-laid or adhered waterproofing membranes. Additionally, below ground structures using permeability reducing admixtures are less sensitive to structure backfill procedures, which can damage alternative waterproofing technologies.

Features and Benefits
  • Increase Durability & Serive Life
  • Increase Safety
  • Decrease Labor for Installation
  • Reduce Maintenance Costs
  • Decrease Time of Construction
  • Redundant Waterproofing System (vs. Sheet applied)
  • Higher Level of Reinforcement Protection
Typical Applications
  • Foundations/Superstructures
  • Water/Wastewater Treatment Plants
  • Bridges and Highways
  • Parking Garages
  • Precast Concrete
  • Shotcrete/Tunneling
  • Commerical and Industrial Facilities
  • Data Centers
  • Marine Structures
  • Swimming Pools

As with any type of construction, waterproofing construction must follow minimum standards of design and construction.Take care to properly waterproof joints with waterstop and locate joints to create predictive cracking patterns that are backed up with appropriate joint waterproofing systems such as PVC waterstop, or strip applied expansive waterstop. Concrete mix design is also critically important. For example, aggregate sizing, quality, and packing density will limit paste volume and, subsequently, control shrinkage. Utilizing a low water/cement ratio will create a strong, dense and durable mix capable of supporting structure loads and withstanding environmental service conditions. Current admixture technologies can be used to facilitate concrete placement year-round and address modern day construction challenges such as slump retention and pumping characteristics.With experts in the fields of waterproofing, sealants, repair, flooring, and roofing, Sika® is your single-source provider for all of your product needs. From pre-pour preparation to a structure being put into service, your next waterproofing job is in the hands of the market leader for innovation, service and value.