How to effectively build a watertight foundation with RECOSTAL®, contaflexACTIV®, and Voltex® скачать в хорошем качестве

How to effectively build a watertight foundation with RECOSTAL®, contaflexACTIV®, and Voltex®

Case Study: Office building with underground parking in Wrocław, Poland. How do you create a permanently watertight foundation in the city center — quickly, cost-effectively, and with maximum precision? This video presents the Ultranet project in Wrocław (2025), featuring an extraordinary 90 cm foundation slab — far beyond the typical 40–60 cm thickness for office buildings with underground garages. The video shows why watertightness, durability, and precision were critical and why the integrated DYWIDAG Concrete Technologies system was chosen: RECOSTAL® 2000 GTF permanent formwork with integrated sealing contaflexACTIV® sealing system with bentonite activation Voltex® bentonite waterproofing membrane Thanks to this combination, the foundation meets the highest standards for watertightness and durability. The contaflexACTIV® waterstop played a key role by creating a continuous waterproof barrier at critical points — joints, slab connections, and corners. Meanwhile, the Voltex® bentonite membrane provided additional protection by forming a monolithic, impermeable layer when in contact with water. Although the site was initially assumed to have no groundwater, heavy rainfall during construction caused water to appear in the excavation — clearly shown in the video. Using RECOSTAL® lost formwork reduced installation time from weeks to just days, cut labor and logistics costs, and simplified assembly — requiring only two workers and no crane. The project was executed by Eko-Raj, a company renowned for professionalism, timely delivery, and advanced waterproofing solutions. DYWIDAG Concrete Technologies solutions optimize construction processes, shorten schedules, and guarantee long-term watertightness — even under complex soil and water conditions and unpredictable weather. 👉 Learn more: https://concrete.dywidag.com/en #DYWIDAG #RECOSTAL #contaflexACTIV #Voltex #Waterproofing #Concrete #ConstructionInnovation #Engineering #Foundation #Wroclaw #Ultranet #ActiveWaterproofing #ConcreteTechnologies