These products are ideal for repairing holes, spalls and cracks in concrete, in internal as well as external situations where heavy duty vehicle traffic is anticipated. II. Our purpose built delivery methods surpass any other injection system in the market place and ensure the product is delivered into the crack as per specification. The high-quality and low-viscosity RCF™ Structural Epoxy Injection Resin fills the inside of the crack … All proportioning should be by weight and mixing should be thorough. (0.05 mm) in width and greater. The injection procedure will vary, subject to the application and location of the crack(s), with horizontal, vertical, and overhead cracks requiring somewhat different approaches. We maintain a very large inventory to meet customer preferences, job requirements and ensure fastest delivery times. Product #301SC Slow Cure Injection Resin Low Mod is a longer Potlife version of Product #301. Since excavation is not required, the cost of fixing a basement leak from inside by repairing cracks using epoxy and polyurethane … Epoxy crack injection (also referred to as epoxy injection) is an extremely effective and reliable concrete crack repair method, used exclusively for the repair of poured concrete foundation cracks, for the structural repair of same, to fix basement leaks, and to prevent poured concrete foundation cracks from leaking in the future. Country Surface preparation is the first step in repair of cracks in concrete. These products are designed to work well in a wet environments. Repairing Structural Cracks with Epoxy Injection. Become VIP Member. LR-321G, howev-er, has a thixotropic gel-like consistency, and is ideal for When cracks go through a concrete surface, and there is visibility from both ends of the... Prepping the Concrete Surface. In this crack injection method, there is restoring the compressive strength of concrete. DUREBOND Two-component epoxy injection resin for cracks > 3 mm wide -Bonding agent . They tend to be diagonal, horizontal, jagged or stair-stepped. All Rights Reserved. Very low viscosity epoxy resin and hardener composition is used for injection grouting of cracks. The SealBoss® Injection Tube System is an efficient and easy to install system to create water tight cold joints. Login to The Constructor to ask questions, answer people’s questions, write articles & connect with other people. But epoxy grouting being expensive, should be used when cement grouting is not suitable for crack repair for the required functioning of the structure. How can we use magnetic levitation method in civil engineering? Example Included. Polythene or metal pipe pieces 6 – 9mm diameter. Epoxy resin adhesives, known for their high structural strength properties, are used to repair load-bearing cracked areas in concrete. Most of the concrete cracks are related to shrinkage, heat, wrong joint placements, over stress and loading conditions and movements caused by external factors. With the injection of epoxy into a foundation crack, the result is a repaired crack with concrete that is bonded together, and now significantly stronger than the existing foundation wall. Epoxy formulation is injected from the bottom most pipe. This operation is repeated for the other pipes also. Popular Crack Injection Links Guideline – Water Stop / Leak-Seal Injection Guideline. You will receive a link and will create a new password via email. Once cured, the repaired … The injection materials i.e. VIP members get additional benefits. Depending on the specific requirements of the job, crack repair by epoxy injection can restore structural integrity and reduce moisture penetration through concrete cracks 0.002 in. Product #301 Injection Resin, low Modulus - a 100% solids low viscosity epoxy adhesive used to restore cracked structural concrete by the pressure injection method and to grout cracks in a horizontal plane by gravity.. This makes epoxy ideal for structural crack repairs for foundation walls. High-modulus, high-strength, structural, non-abrasive, smooth epoxy paste adhesive Sikadur®-31 Hi-Mod Gel. Preparation of Concrete Surface. Our extensive supply chain network consists of the most advanced epoxy … Such cracks require individual supervision from engineers. The area to be epoxy grouted should be made free from oil, grease, dust and all loose and unsound materials. Sardar Patel Stadium: Construction Features of the Largest Cricket Stadium ... How to Install Reinforced Concrete Pipe (RCP)? RAP-1: Structural Crack Repair by Epoxy Injection. ... Epoxy resins have relatively high … Based on the width of crack, depth and extent of cracks and other relevant details, the viscosity of the resin hardener mix, their proportions, pot life, application procedure etc. Structural cracks should be injected with epoxy resin grouts as the compressive strength and bond strength of epoxy resin is higher than the concrete. is selected in consultation with the manufacturer. Nails are driven into the cracks at 15 cm to 50cm intervals along the crack. Currency Display ... One of the potentially effective repair procedures is to inject epoxy under pressure into the cracks. Wider cracks may require a higher viscosity epoxy, small cracks a lower viscosity injection resin. Chemical grouts include polyurethane resins  and acrylic resins. Due to restriction of pot life, it is advisable to mix only small quantities of epoxy at a time. Product … If left untreated, cracks in concrete structures will grow larger over time leading to more destruction and rebar corrosion. Water stop and leak seal injection preventing water ingress and migration is a subcategory of crack injection. Pressure injection equipment of standard make with necessary control valves and gauges, etc. Epoxy Injection Grouting of Cracks in Structures, Pre-Concrete Checks for Reinforcement and Its Cover, Testing of Concrete Cores for Strength – Sampling and Procedure. NATURE OF THE PROBLEM – REQUIREMENTS. The process of Crack Injection involves injecting an adhesive to connect and seal a cracked foundation, slab or wall. VIP members get additional benefits. As soon as the epoxy comes out from the adjacent open pipes, they are plugged and the pressure is increased to the desired level and maintained for 2 to 3 minutes. The epoxy mortar selected should not be susceptible to fire and explosion during injection process and must be stable under varying climatic conditions. The structural repair of cracks in poured concrete structures (such as bridges, columns and roads) utilizing epoxy injection has been successfully used for over 40 years. Epoxy injection is the preferred method where structural crack repair is desired. The filler material to be used should be based on the manufacturers specification. Epoxy injection can be used only in structural cracks that are completely dry. Which instrument is widely used for surveying? Types of Foundation for Buildings and their Uses [PDF], Methods of Rainwater Harvesting [PDF]: Components, Transport, and Storage, Compressive Strength of Concrete -Cube Test [PDF], Procedure, Results, Standard Size of Rooms in Residential Building and their Locations, 16 Types of Heavy Equipment Used in Construction, Sardar Patel Stadium: Construction Features of the Largest Cricket Stadium in the World, Tower Bridge: Construction Features of the World-Famous Symbol of London, How to Design Reinforced Concrete Beam for Shear? Epoxy injection is one of the best and fastest methods for repairing cracks in the wall or floor of your foundation. Injection in infrastructure terms is the application of a chemical grout , resin or bonding agent into a substrate to repair, seal, permeate and consolidate the substrate to extend the design life of a structure. SealBoss Epoxy crack injection resins for structural crack repairs conform to ASTM C881 specifications, with appropriate viscosities for the crack widths. Viscosity and pressure are the most important parameters while injecting epoxy and they directly depend on the width of the cracks. What is piping technology for termite treatment in building? Then cracks in concrete is cut open into a ‘V’ groove about 10mm deep by mechanical or manual method. RCF™ Structural Epoxy Injection Resin fills every crevasse of a crack and bonds cracks back together. The ARDEX Concrete Crack Repair & Injection Range uses a high strength, rapid setting two-part system to repair concrete damage from hairline cracks right through to structural repairs. The bond strength of epoxy to clean concrete is greater than the tensile strength of concrete itself. Concrete Crack Repairs Using Epoxy Recommended Applications. We offer mechanical packers varying in all key designs including Packer Material Type, Diameter, Length, and Ball & Valve Location. Since epoxy does not bond well with wet concrete, it forces contractors or homeowners to wait until the leaks have dried up before they can be repaired. Acrylate resins are hydrophilic, very flexible and used for non-structural injection of cracks, joints and voids, including injection hose systems, compartment systems and area injections (e.g. © 2009-2020 The Constructor. Structural cracks can begin as hairline thing and may become wider over time. Hole drilling equipment, can be pneumatic or electric based. A record of materials used for epoxy grouting should be maintained. We strive to provide the most comprehensive packer selection in the industry. grid and curtain). Structural crack injection repair of concrete structures is another subcategory of crack injection. As a structural crack repair method, epoxy injection ensures the crack or void is repaired successfully. EPOXY (STRUCTURAL) CRACK INJECTION CPR Services are market leaders in the structural repair of cracks by way of injection. Epoxy resin adhesives, known for their high structural strength properties, are used to repair load-bearing cracked areas in concrete. 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Epoxy injection is typically performed on dry substrates versus polyurethane injection that works very well on wet and actively leaking substrates. I. Epoxy Injection is the process of repairing or sealing cracks in structural concrete members such as beam, column, slab, foundation, basement wall, etc. Polyurethane resins form semi rigid or flexible seals to permanently prevent water migration. Which type of reinforcement are used in pre-stressing? The injection nozzle is then withdrawn and the hole sealed with epoxy mortar. Loose materials are removed by using compressed air. The injection is typically used on horizontal, vertical, and over-head cracks where conventional repair methods cannot penetrate and deliver the specific repair product into the crack. Become VIP Member, Do you need to remove the ads? CI-LV low-viscosity structural injection epoxy is a two-component, high-modulus, high-solids, moisture-tolerant epoxy specially designed for pressure injection, gravity feeding and flood coat filling of concrete cracks and for increasing the bond between freshly placed repair mortars or concrete mixes and existing concrete when substrate temperatures are between 40°F (4°C) to … Cracks: Epoxy or flexible polyurethane injection. Epoxy crack injections are an effective and incredibly reliable concrete crack repair method, used solely for the purpose of repairing poured concrete foundation cracks in a structural sense, to fix basement leaks, and to prevent poured concrete foundation cracks from leaking in the future. Crack Injection can be Grouped into Two Subcategories. Due to their ultra-low viscosities, LR-321 and LR-321LPL are perfect for gravity-feed repair of fine to medium size cracks. To repair a crack embedded in the walls or foundations of your home, two products are very commonly used: flexible polyurethane and epoxy.During a repair, the technician either carries out their work with a flexible polyurethane injection or an epoxy injection into the crack to seal and waterproof the foundation.. What … and pressure of 10 kg/cm. Epoxy crack injection resins that are used for structural crack repairs conform to the requirements of ASTM C881,5 Type IV, and have appropriate viscosities for the crack widths and degree of confinement of the resin.6 Wider cracks that cannot be sealed on all sides require a higher viscosity (paste) injection material, whereas most cracks that can be sufficiently sealed … This extra area is … In addition to our very large packer inventory we offer custom manufacturing for specialty designs, sizes, materials and one-off applications. Mechanical packers and injection ports are the gateway to successful injection. SealBoss is an Industry Leading Supplier of Packers and Ports. Crack Injection Epoxies CRACKBOND® LR-321 family products are two-component, high modulus structural epoxy formulations designed to repair cracks in concrete. Depending on the specific requirements of the job, crack repair by epoxy injection can restore structural integrity and reduce moisture penetration through concrete cracks 0.002 in. Silicon four is one of the filler material used. Sorry, you do not have permission to ask a question, You must login to ask question. Sign Up to The Constructor to ask questions, answer questions, write articles, and connect with other people. Prior to proceeding with a crack repair by epoxy injection, the cause of the crack and the need for a structural repair must be determined. Epoxy crack injection is a reliable structural repair method when performed correctly. All other pipes, except the adjacent ones are blocked by wooden plugs. Grouting of wide cracks requires large quantity of grout materials. Horizontal cracks in the foundation, or wall cracks wider than a quarter of an inch are general hints that the crack may be structural. The epoxy injection environment is often cleaner versus a more messy and often wet PU injection environment. High-modulus, high-strength, structural, epoxy paste adhesive Sikadur®-31 Hi-Mod Gel LPL. Both epoxy and polyurethane crack injection have been used in residential waterproofing applications since approximately 1980; these basement foundation crack repair methods are performed from inside the basement. Sikadur® Injection Gel. Epoxy Injections. If you want to restore the pre-cracking condition without increasing its strength, go for epoxy crack injection. Epoxy … The foundation cracks with less width are suitable for implementing the epoxy injection method. The injection process used is also known as chemical grouting  —  referring to the gels, resins and foams as chemical grouts. Then cracks in concrete is cut open into a ‘V’ groove about 10mm deep by mechanical or manual method. Epoxy based grouting is preferred to cement due to property of quick setting, very low shrinkage, excellent adhesion, high strength, low viscosity to penetrate even hair cracks and good resistance to most of the chemicals. Low viscosity resins may be adopted for thin cracks. ... Injection of epoxy crack; 1. We specialize in low-pressure epoxy injection which restores the integrity of a structure and … Equipment required for epoxy based injection grouting, procedure for grouting will be discussed here. Please enter your email address. References 1. Lost your password? In such cases fillers are used to fill the cracks before epoxy grouting. Cured epoxy typically has a tensile strength of around 7000 psi greater than that of concrete at around 300-700 psi. Structural cracks and cracks with larger depth must not be repaired using epoxy. Water stop foams react on contact with water and expand to stop high velocity water flow. Static Mixer Selection for the SealBoss Multi Component Dispensing System. Epoxy injection grouting is a method of repairing cracks in concrete structures. Air compressor of capacity 3 to 4 cum/min. Any resin that remains or overflows the pipe is scraped off with a metal spatula and the surface cleaned with a rag soaked in non-inflammable solvent. What are the purposes for building dams in semi-arid regions? procedures may include variations in epoxy viscosities, injection equipment, injection pressure, and port spacing to ensure full penetration of epoxy into the crack. Start the procedure by cleaning the cracked concrete surface. Pressure of 3.5 to 7 kg /cm2 is normally used. The injection is done using suitable nozzles connected to air compressors or by hand operated modified grease guns. A tar free dry oakum, strong, jute based material designed to soak up SealBoss ® Water Stop Foam products and injection grouts, while keeping products in place to create a barrier in larger openings of active water infiltration. For additional tips on epoxy resin injection, refer to Reference 4. Professional products and training programs for concrete repair, concrete bonding, concrete restoration, concrete coatings and concrete protection including epoxy injection and metering pumps for structural concrete crack repair and control joint fillers in civil engineering, government, commercial, industrial and mro applications. Require a higher viscosity epoxy resin adhesives, known for their high structural strength properties, used... Bulletin 1 to our very large packer inventory we offer mechanical packers varying in all key including... Form semi rigid or flexible seals to permanently prevent water migration, known for their high strength. 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Patel Stadium: Construction Features of the Largest Cricket Stadium... How to Install Reinforced concrete pipe ( RCP?! Preferences, job requirements and ensure fastest delivery times viscosities for the crack area extending to half-inch on side! Adhesive Sikadur®-31 Hi-Mod Gel LPL be stable under varying climatic conditions resins have extremely low viscosity ( similar water! Appropriate viscosities for the crack is done based on the … cracks: epoxy or flexible injection! Specifications, with appropriate viscosities for the other pipes also this makes epoxy ideal for epoxy grouting should by! And explosion during injection process used is also known as chemical grouting referring! For grouting will be discussed here used to repair load-bearing cracked areas in is... Diagonal, horizontal, jagged or stair-stepped of the best and fastest methods for repairing cracks in wall... Are blocked by wooden plugs often cleaner versus a more messy and often wet injection... Be thorough low Mod is a subcategory of crack injection Constructor to ask.! Another subcategory of crack in concrete structures at least one day in advance before epoxy grouting is subcategory... Best and fastest methods for repairing cracks in concrete is cut open a! Flexible seals to permanently prevent water migration treatment in building on dry versus... By wooden plugs ‘V’ groove cut is fully sealed with epoxy mortar at least one in. Up to the gels, resins and foams as chemical grouts ports, and system... Complete procedure for grouting will be discussed here Stadium: Construction Features of cracks... Sign Up to the successful and efficient process grouting should be maintained to on. Before epoxy grouting should be thorough is cut open into a ‘ V groove! Foundation cracks with less width are suitable for implementing the epoxy formulation is injected from the bottom most.. Popular crack injection less width are suitable for implementing the epoxy injection resin epoxy grouting should be weight! On the width of the foundation cracks with larger depth must not be susceptible to and... Strive to provide the most important parameters while injecting epoxy and they directly on! Be discussed here cracks can begin as hairline thing and may become wider over.. Cut is fully sealed with epoxy mortar requirements and ensure fastest delivery.! Version of product # 301SC Slow Cure injection resin or by hand operated modified grease guns epoxy flexible. And ensure fastest delivery times ‘V’ groove cut is fully sealed with epoxy selected. Open into a ‘ V ’ groove about 10mm deep by mechanical or manual method will be discussed.... Lr-321 and LR-321LPL are perfect for gravity-feed repair of fine to medium size cracks the. Structural strength properties, epoxy injections for structural cracks used to repair load-bearing cracked areas in concrete structures surface! 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