As crack injection shall be understood the filling of cracks in reinforced concrete buildings or brickwork by means of grouting with mineral based materials or resins.Cracks in concrete can be caused by several different reasons, like setting or shrinking of the concrete or mistakes in design or in construction process.· Sealing crack injectionEspecially water bearing cracks are the reason for corrosion on the reinforcement and jeopardize the safety of a concrete building. TPH offers secure and long term solutions for the crack injection in reinforced concrete.All products, systems and solutions, which will be presented in the following chapters, are approved for many years on the sites and are in possession of a General Appraisal Certificate.· Solid structure crack injection Acrylate gel for flexible crack injectionRUBBERTITE in combination with POLINIT is employed for the injection into cracks in reinforced concrete buildings. POLINIT is a flexibilisation medium on a polyacrylic basis, which is used for the blending of the B component instead of water. POLINIT increases the flexibility as well as the adhesive power of the acrylate gels to silicate surfaces.Even capillary cracks can be compressed reliably due to the extremely low blending viscosity of RUBBERTITE/POLINIT. A fissure that has been injected with RUBBERTITE/POLINIT is able to resist a water pressure of 4 bar at the simultaneous fissure expansion of 68% in comparison to the original width of the fissure. This was proven in the course of an application technological test.Rectification of defective expansion and butt jointsVARIOTITE in combination with POLINIT is employed for the renovation of expansion joints. Initially the joint to be renovated is evacuated as profoundly as possible, i.e. the old joint sealant as well as the polystyrene joint filling is removed. Then the PROOFMATE Ecompression seal is pressed into the joint and the sealant applied with FIX-O-FLEX H. A PE back fill profile should be installed prior to the sealing process to prevent a three-flank adhesion of the joint sealant material.When the FIX-O-FLEX H has completely hardened, the filled acrylate gel VARIOTITE / POLINIT is pressure injected into the remaining joint space. The acrylate gel can be inserted into the joint via injection packers or via a previously installed injection hose, for example, VPRESS® or ECOPRESS.An expansion joint that has been renovated in this manner has been proven to resist a water pressure of 2 bar at a joint expansion of 48% in comparison with the original width of the joint.Upgrate of expansion joints with acrylate gelPolyurethane resin for flexible crack injectionPUR-O-CRACK, PUR-O-RIP and PUR-O-RIP LV are employed for the injection filling of cracks in reinforced concrete buildings. To achieve this purpose the fissures are initially diagonally spot drilled and high pressure packers are inserted into in the drill holes. A plugging of the crack, e.g. using the assembly cement F300 is usually necessary.Prior to the injection procedure the single components are weighed or gauged in the prescribed mixing ratio and then blended in a special vessel or in the feed hopper of the injection pump. It is essential to ensure a homogenous (free from reams) blending. After this the injection is carried out via the high pressure packers within the processing time for the respective product with the aid of single-component injection pumps. We recommended that the injection pump CONTRACTOR 1 U and ME 1K ELEKTRISCH are employed for the processing of the Polyurethane resins PUR-O-CRACK, PUR-O-RIP and PUR-O-RIP LV. Epoxy resin for solid structure crack injectionEpoxy resins are composed of polymers. By addition of appropriate hardeners the mixture results in a synthetic material, which is being used in almost all part of craft work and industry. They have the distinction of a high resistance to chemicals, long life span, low weight, high adhesion ability and low shrinkage.Epoxy resins are used for many years as injection material for the use of water proofing. Generally they are applied into reinforced concrete structures where solidification of the structure is required. HYDROPOX EP1 is a two component, low viscous injection resin based on Epoxy with special chemical and physical properties. Due to its low viscosity EP1 can be used successfully in reinforced structures and even penetrate hair cracks. The special formulation allows processing of EP1 even on moist surfaces. Before injecting HYDROPOX EP1 cracks have to be pinpointed in detail and backfilled, if necessary. Afterwards, cracks gets center drilled angular and the high pressure packers get placed. For processing of HYDROPOX EP1 the components have to be mixed according to the mixing ratio and get scrambled homogenously. By means of a one component pump, e.g. CONTRACTOR 1 U or ME 1K ELEKTRISCH cracks can be grouted.Upgrate of expansion joints with joint profile and acrylate gel
Stopping of water inrush
In the case of damp proofing work and renovation in the area of ingressing water, e.g. during tunnelling and in underground car parks, water frequently penetrates the construction through fissures and faults. In such cases Polyurethane foams and quick reacting Polyurethane resins, in particular have proven themselves to be very effective in the temporary arresting of water ingress.Besides the foam formation and the short reaction time Polyurethane systems are especially suitable for the arresting of water ingress because they cannot mix with water. USESAcrylate gels for stopping of water inrushIt is possible to stop minor water ingress with the quick reacting acrylate gel VARIOTITE. To accomplish this, the product must be set to its most rapid reaction time (approx. 10-15 s), in that the relevant quantity of initiator is employed for the blending of the B component (see Technical data sheet). The injection process should be carried out at a flow rate as high as possible via packers with a large inner diameter. Prior to this procedure the water ingress should be inhibited as far as possible. This can be accomplished using quick reacting cements such as F30 and F60 or by means of mechanical plugging, for example with cloths.However, even quick reacting acrylate gels have their limitations in the stopping of ingressing water, because the acrylate gels are water soluble. On incidence of considerable faults through which the water can permeate the component, as well as in event of an extremely high flowing rate of the water, it would be more sensible to employ Polyurethane foams such as PUR-O-STOP to inhibit the water ingress, as these cannot be diluted by the water.Polyurethane resin for stopping of water inrushPUR-O-STOP and PUR-O-STOP HF are suitable for the temporary arresting of ingressing water. The fact that this is a temporary sealant has nothing whatsoever to do with the fact that PUR-O-STOP and PUR-O-STOP HF are not products for permanent application. Rather the injection against ingressing water has an impact on the recipe of the Polyurethane systems as these react with water.If the water ratio is too high in comparison with the product quantity, foams could arise, which would not be durable on a permanent basis. Whereas if the water ratio matches the product quantity, permanently durable foams would be created. However, as the quantity of water on a building site cannot be verified, Polyurethane foams are customarily defined as temporary sealants.A permanent sealing is accomplished by the retro-injection of two component Polyurethane resins, such as PUR-O-CRACK and PUR-O-RIP or of acrylate gels, such as RUBBERTITE and VARIOTITE.
Injection into masonry
In the case of injection into masonry the injection material is injected continuously via low pressure packers, which are in offset arrangement in the form of a grid, at low pressure (low pressure process). In this manner the faulty joints as well as the capillaries, pores and hollow cavities in the bricks are filled in with the injection material.The continuous injection into the masonry is applied in cases when the previous surface sealant, e.g. an older bituminous sealant, has become defective.For filling, sealing and consolidation of masonryUSESSurface injection into masonryFor the surface injection into masonry as well as for the retrofitting of a horizontal damp-proof barrier the two component injection resins PUR-O-RIP and PUR-O-RIP LV are especially suitable.Following the blending of the components, the injection material in injected into the masonry via 1-K injection pumps, for example the CONTRACTOR 1 U. The masonry must be insulated prior to the injection process e.g. with F300 in order to prevent the escape of material and pressure loss.Injection into sandstoneRetrofitting of horizontal damp-proof barriers with RUBBERTITE is undertaken in brick masonry as well as in natural stone structures for example sandstone. Besides the low viscosity RUBBERTITE also has the benefit that it does not leave stains on the surface of the sandstone, as would occur if Polyurethane resin were employed.A large cellar comprising dimensions of 400 m2 that was formerly used as a wine cellar is located beneath the Chamber of Commerce, in which on a approx. 2 m thick foundation of bricks and mortar twelve mighty pillars made of Oberkirchen Sandstone support the building together with the brick walls possessing a thickness of up to 1.80 m.As a result of the omission of horizontal damp-proof barriers in the sandstone pillars as well as due to the brickwork walls, the load-bearing basic structure of the building was subject to considerable damage due to the humidity rising through the capillaries. Post-applied horizontal barrierA special case in masonry injection processes is the retrofitting of a horizontal damp-proof barrier, which is employed if the existing surface sealant is still intact and it is solely rising humidity in the capillaries that is causing the damage.In this case a grid of drill holes is arranged generally low lying directly over the floor wall connection, at which at least two horizontal joints are pierced by diagonal drill holes.Pressureless injection into masonryThe renovation was accomplished by the subsequent installation of a low-lying horizontal damp-proof barrier by means of the injection of RUBBERTITE. A range of preliminary investigations was conducted prior to commencement of the reconstruction measures in order to establish the sustainability of the redevelopment. For example sample injections using dyed Injizierter Probekörper injected sample acrylate gel into sandstone structures were undertaken to verify the penetration behaviour to be able to draw conclusions concerning the packer clearance to be selected. A special drilling grid was plotted at the foot of the sandstone pillars as a result of the findings of the preliminary investigations. The injection procedure was carried out with RUBBERTITE with the reaction time set at approx. 10 minutes in low pressure operation with the injection machine running slowly. In this way it was possible to achieve an optimal distribution of the injection material in the homogenous structures of the sandstone.
The curtain grouting injection is employed whenever excavationcurtain injection is not possible for technical or cost-effective reasons or if cracked building components are subject to considerable movement.At this injection method a gel curtain made from RUBBERTITE respectively VARIOTITE outside the building part is made up. This results in the advantage that no water can reach the harmed building parts anymore and the same has the chance to dry out fully. Main applications of the curtain grouting injection:Gelation of cracked or moisture saturated floor platesCurtain grouting of leaking expansion jointsSealing of cracked, moving building componentsSealing of joints in buildingsComplete and partial curtain grouting of tunnels constructed of tubbing segmentsRenovation of dilapidated canal masonry. - Sealing without digging- Waterproof up to 12 bar- Adjustable to soil conditions- High chemical resistance- Long-term tested- Worldwide references availableUSESFor a curtain injection first of all a raster of packers has to be set up. The raster should overtop the highest assumed level of ground water. The distance of 30cm in-between the packers is just an average. It is recommended to perform a test injection in order to check the distribution of the gel, which is heavily dependent on the ground structure.The injection procedure is always carried out evenly from one side to the other and from the bottom upwards in order to be able to build up a smooth and even curtain. In the process it is essential that every packer is injected repeatedly.The initial injection stage will more or less penetrate the back filling material. After the material has been hardened, the second injection stage can be carried out that now leads to a rather more even surface distribution of the acrylate gel due to the flow restriction of the initial stage.The third stage will then finally achieve the actual required sealing tightness because the material is predominantly evenly distributed over the surface as pure gel (without sand). The required quantity of material as well as the necessary number of injection stages is dependent on the permeability of the ground.
Polymer Stabilizing Geoinjection Different injection materials are suitable for the stabilisation of dry and moist gravel and sand bases and hence to create ground stabilisation.The injection procedure is accomplished with packers or injection lances directly into the areas to be strengthened and hardened. The hardened resin/sand mixtures are distinguished by their high rigidity and stability. Penetrates even into fine sandy soilsAdjustable to soil conditionsSolidifying and sealing effect in one operationWorldwide references availableUSESBy reason of its extremely low viscosity and its high mechanical stability in hardened condition RUBBERTITE is very suitable for the compression and stabilisation of ground. A penetration of the ground is usually achieved via injection lances in this procedure. The hardened gel/sand mixture is distinguished by a high degree of rigidity and stability.In the new construction of tunnels which are erected in tubbing sections or pipe drive, RUBBERTITE is employed for the stabilisation of the ambient ground area in the new construction of tunnels. This is essential especially if repair work on the road heading machinery must be carried out or when leakage must be remedied in the region of the start and target shafts.
Injection in grouting hoses
The systematically installed injection hoses into the construction joints get grouted after the atrophy of the concrete is finished. First setting of the concrete is presumed. During the shrinkage process of the concrete a joint is build up around the hose, which secures a successful grouting of the same. Like this, problems appearing while compacting of the fresh concrete resulting in gaps and cavities can be combed out. Depending on the chosen injection material the hose can be grouted multiple, which gives the advantage of the post-application in case of later observed leakagesInjection of grouting hoses with acrylate gelTPH offers secure and long term solutions for grouting of injection hoses.All products, systems and solutions, which will be presented in the following chapters, are approved for many years on the sites in and are in possession of a General Appraisal Certificate. Active sealing systemEnables filling of cracks and hollows within the structureSealing and restoration in one stepDependant on type of hose up to 30 meter length is possibleInjection of grouting hoses with polyurethane resinUSESFor the grouting of the injection hoses VPRESS® and MEDIPRESS the acrylate gel RUBBERTITE/POLINIT has been approved by the building authorities to resist a water pressure of 5 bar. The benefit of the injection with RUBBERTITE/POLINIT as opposed to the compression with Polyurethane resins is that the acrylate gel can be injected several times.On the one hand this depends on the consistency of the inner duct of the injection hoses VPRESS® and MEDIPRESS and on the other hand it depends on the fact that RUBBERTITE /POLINIT contains water as a solvent and consequently can be simply flushed from the hose without exerting pressure within the reaction time of the products. In this case the application of the injection pumps BOOSTER 10 A and MINIBOOSTER 5 U is recommended, which are equipped with an external scavenging pump.A further benefit of the acrylate gel RUBBERTITE/POLINIT in the compression of injection hoses is the extremely low blending viscosity.Whereas when Polyurethane resins are employed as the injection material the individual hose sections may not exceed a length of 10 m, when RUBBERTITE/POLINIT is employed also section lengths of up to 30 m, which could be necessary according to the particular construction, can be reliably compressed.By reason of the extremely low viscosity the filling of the injection hose can be achieved in a few seconds on the one hand and, on the other hand, the even distribution of the acrylate gel in the construction joint can be accomplished without any difficulty even in the case of hose section lengths of 30 m. This has been proven in the course of an appropriate application technological test.Injection hoses for sealing of biogas plantsFlexible sealing system, approved for use in CHF and LMSS plants
PVC POOL Classic swimming pool membranes and Pond liners in SKY BLUE color , UV resistanThickness1.21.52(mm)Width (m)126.96.36.199Length (m)252020Colour (*)Top and botton ; sky blue and greenTypesUV / UV-R Advantages • High mechanical & thermal resistance• High resistance to UV rays & Weathering• High resistance to puncturing• Resistant to root penetration• High resistance to hot-cold temperature cycles• High aging resistance, well proven formula developed for 40 years• Specific thicknesses: on demand
PVC BASEPVC BASE is a polymeric membrane made from a long-term proven PVC-P compound in a most modern Co-extrusion process, features high elongation for elasticity to absorbStructural movementsThickness1.21.52(mm)Width (m)188.8.131.52Length (m)252020Colour (*)Top: RAL 1021 cadmium yellow, Bottom : blackTypesNR / Rwaterproofing membranes for civil engineering and building structures & surfaces below ground Geo-membrane applications: lining, protection & separation membrane on various substrates . For civil engineering and landscaping projects, canals, dams, reservoirs , artificial lakes. Complies with the European harmonized Standard EN 13967(basements) and EN 13967 (Tunnels)
polymeric membrane made from a long-term proven PVC-P compound in a most modern Co-Extrusionprocess, features high elongation for elasticity to absorb structural movements.Thickness1.21.52(mm)Width (m)184.108.40.206Length (m)252020Colour (*)Top: light green and white , Bottom : blackTypesNR / RAdvantages • High mechanical resistance• Resistance to UV rays & Weathering• High resistance to puncturing• Resistant to root penetration• High resistance to hot-cold temperature cycles• Various RAL colors available on demand to aid architectural designs• High aging resistance, well proven formula, developed for 40 years• Specific thicknesses: on demand
OSISCO is a rapidly growing company engaged in the supply and application of insulation materials, based on experienced workers under the supervision of engineers with extensive knowledge of the latest insulation technology. OSISCO provides high quality and efficient insulation.
It’a specialized in: Infrastructure and geotechnical applications. Concrete repair, crack injection, water stop and leak seal technology, floor repairs, coatings, slab lifting and soil consolidation. The company also provides specific waterproofing system for garages, roofs, pools and lakes.