Sika crystallizes 100years of waterproofing experience with the launch of their new SikaWT200P‘self-healing’crystallineadmixture.
Sika’s latest waterproofing innovation is Sika WT200P. The benefits of Sika’s WT Series have already been established on significant projects around the world. Sika WT-200Pis a new admixture powder that is added directly to the ready-mix load on the construction vehicle.
This crystalline admixture enables concrete cracks to ‘self-heal’ and therefore block water, even when under extreme hydrostatic pressure; and it will continue to reactivate whenever water is present.
The need for such a solution is critical. Concrete is a porous material. The many pores or voids in concrete are created by excess water in the mix that is not used in the chemical reaction that hardens the concrete. Once the concrete is dry, external water finds these pores and seeps through.
There are many instances however where it is essential that water is unable to travel though concrete. Swimming pools, water retaining structures, dams and waste water treatment structures need to keep water in. Basements, parking garages, utility or plant rooms and tunnels need to keep water out.
When present in hardened concrete, Sika WT-200P formsanon-soluble crystalline material throughout the pore and capillary structure and seals the concrete permanently against penetration of water or other liquids. In addition, the special formula and ingredients of Sika WT-200P enhance the ‘self-healing’ properties of concrete.
The Sika WT series in waterproof concrete delivers the following advantages:
- Service life of the structure is increased
- Durability and sustainability of the hardened concrete is significantly improved
- Water-tightness is ensured without other costly measures
- Maintenance costs are reduced
Sika WT-200Pis packaged in plastic buckets, each containing 6x 1.75kgbags.Thesebags are disposable so they can be thrown directly into back of the ready-mix truck. The dose rate is 1%by weight of cement.
For more information on Sika products and systems, visit www.sika.co.za
Sika AG Corporate Profile
Sika AG, is a globally active specialty chemicals company with its South African Head Office based in Durban, and branches in all major SA cities.
Sika AG, located in Baar, Switzerland, supplies the building and construction industry as well as manufacturing industries (automotive, bus, truck, rail, solar and wind power plants, facades). Sika is a leader in processing materials used in sealing, bonding, damping, reinforcing and protecting load-bearing structures. Sika’s product lines feature high-quality concrete admixtures, specialty mortars, sealants and adhesives, damping and reinforcing materials, structural strengthening systems, industrial flooring as well as roofing and waterproofing systems. Sika has subsidiaries in 93 countries around the world and manufactures in over 170 factories, with some 17 281 employees link customers directly to Sika and guarantee the success of all partners. Sika generated annual sales of CHF 5.49 billion in 2015