WATERPROOF STRUCTURES Systems for concrete sealing WATERPROOF STRUCTURES Systems for concrete sealing

> General considerations on the design of underground sub-structures > Solutions for sealing concrete discontinuities page 6-7 page 22 page 26

General design considerations of underground sub-structures To ensure the durability of concrete structures, it is essential to make wise decisions right from the design stage. Often, premature degradation of RC structures is the result of a wrong choice of the prescribed type of concrete, the environmental conditions to which the structure is subject and the incorrect or absent installation of suitable waterproof seals on joints and cracks. The EN 206-1 and UNI 11104 regulations establish the standards for the design and construction of sub-structures. They indicate the environmental exposure...

FOUNDATION PILE HORIZONTAL CASTING JOINT [4} CONTINUITY OF PROFILES IN EXPANSION JOINTS fs) COMPARTIMENTAL SEALING ^ OF WALLS 11) DISCONTINUITY OF PRECAST WALLS 12) POST CAST DISCONTINUITY 13 SPRAYED CONCRETE TECHNIQUE WATERPROOF STRUCTURES Systems for concrete sealing 7

1. FOUNDATION PILE WT CONSTRUCTION Sealing of foundation pile/slab AKTI-VO 201 Sealing of the passing rebars Foundation piles are an important element to ensure stability in buildings, they are made to transfer the load of the building uniformly to the underlying ground. Well points are useful for lowering the groundwater level. Positioned in the structure itself, they therefore facilitate the construction of the foundations of underground structures. WT CONSTRUCTION Sealing of foundation pile/slab WATERPROOF STRUCTURES Systems for concrete sealing

Complete connection of joints Castings carried out consecutively for construction site needs can give rise to casting restarts along the slope. WT PANEL Compartmental waterproofing of horizontal castings Compartmental waterproofing of horizontal castings WT EXPANSION Joint waterproofing of expansion joints It s a waterproof life, The connection between the joints and their sealing they guarantee a continuous barrier against water, (preserving the stability of the building and reducing maintenance costs) and the long-term integrity of the building. WATERPROOF STRUCTURES Systems for concrete sealing...

WT CONSTRUCTION Sealing between the slab and the wall Construction joints, inevitable in the construction of a structure, become critical points that can compromise the waterproof seal, especially in variable contexts and geometries, discontinuous terrain and nonhomogeneous, heavy or seismic loads. Stable anchoring to the support even in rainy conditions. 6. COMPARTMENTAL SEALING OF WALLS WT BREAK Crack inducer In reinforced concrete structures, the formation of spontaneous cracks due to hydraulic shrinkage and/or differentiated structural loads must be guided with special elements (the so called...

WT EXPANSION + WT PANEL Expansion joint waterproofing An expansion joint in a concrete structure plays a fundamental role in managing the movements of the structure itself. The continuity of the profiles allows for complete waterproofing of the interface between the castings. In fact, their main function is to monitor the movements that can arise over time, allowing the structure to adapt flexibly. WT STRIP Penetration sealing In the context of underground structures, it is necessary to create holes in the structure in order to allow the passage of various pipes. With consequent sealing problems...

9. INTERMEDIATE SLAB WT PANEL Waterproofing of intermediate slab The infiltration of water into the head of the intermediate floor of an underground structure can cause damage that is difficult to repair and can put the use of the premises at risk. WT CONSTRUCTION + WT EXPANSION + WT PANEL Ramp/building interconnection A concrete access ramp for underground rooms is an inclined structure that provides passage to underground spaces such as car parks and cellars. Its design must ensure safety standard stability and durability and adapt to the important movements to which it is subjected. WATERPROOF...

11. DISCONTINUITY OF PRECAST WALLS BI FLEX SYSTEM External sealing The external waterproofing of casting and construction joints allows for better visual control of their continuity and execution. Particularly suitable for the use of precast elements. BI FLEX SYSTEM Sealing cracks and cracks from inside The repair of spontaneous cracks, construction joints, expansion joints that are not adequately sealed, allows post-execution defects to be promptly repaired. WATERPROOF STRUCTURES Systems for concrete sealing

Waterproof protection for construction joints The sprayed concrete technique, or "shotcrete", it is known for its versatility and practicality. The use of hydroreactive rubber panels during the application phases offers significant advantages. These panels allow for the maximization of the methodology, providing precise guidance for the pour and ensuring programmed compartimental waterproofing. Furthermore, they contribute to the protection of "fresh on fresh" construction joints, preventing potential structural weak points and guaranteeing a waterproof seal, thus reducing the risk of water infiltration....

WT CONSTRUCTIONHydro-expansive EPDM waterstop reinforced with steel mesh > Perfect sealing and high resistance to hydraulic load > Excellent dimensional stability even in the case of volumetric increase due to premature contact with water. The profile maintains the volumetric mass WT STRIPHydro-expansive EPDM tape > High hvdro-expansive capacity and stability > Flexibility and easy adaptation to the shape and dimensions of the structures to be sealed WT EXPANSIONHydro-expansive EPDM gasket > Perfect hydraulic seal > High resistance to hydraulic load WT BREAKSelf-sealing box profile > Perfect...

Total waterproofing » waterproofing » humidity barrier » radon gas barrier The advantages of 3000 Grip • Absolute watertightness with no lateral water migration Immediate mechanical protection, self healing and self sealing High resistance to hydraulic load • High flexibility and ability to bridge cracks In case of adoption of VOLTECO technologies in the development of the waterproofing design, several principles are followed which have been studied to avoid or limit the onset of potential problems: • Self-sealing overlap technology: double sealing with adhesive mastic and combination of compaction...