Pressure injection equipment of standard make with necessary control valves and gauges, etc. Procedure for Epoxy Injection Grouting in Concrete Structures: Surface preparation is the first step in repair of cracks in concrete. Clean the crack area extending to half-inch on either side of the crack. Static Mixer Selection for the SealBoss Multi Component Dispensing System. Such cracks require individual supervision from engineers. SealBoss ® Inject Tube System Applications. 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 … RCF™ Structural Epoxy Injection Resin fills every crevasse of a crack and bonds cracks back together. The injection nozzle is then withdrawn and the hole sealed with epoxy mortar. Depending on the … Become VIP Member. What is piping technology for termite treatment in building? What are the purposes for building dams in semi-arid regions? All other pipes, except the adjacent ones are blocked by wooden plugs. The filler material to be used should be based on the manufacturers specification. Login to The Constructor to ask questions, answer people’s questions, write articles & connect with other people. Due to their ultra-low viscosities, LR-321 and LR-321LPL are perfect for gravity-feed repair of fine to medium size cracks. The ‘V’ groove cut is fully sealed with epoxy mortar at least one day in advance before epoxy injection. The epoxy injection environment is often cleaner versus a more messy and often wet PU injection environment. Then cracks in concrete is cut open into a ‘V’ groove about 10mm deep by mechanical or manual method. I. If left untreated, cracks in concrete structures will grow larger over time leading to more destruction and rebar corrosion. Product #301SC Slow Cure Injection Resin Low Mod is a longer Potlife version of Product #301. Become VIP Member, Do you need to remove the ads? Epoxy Injection is the process of repairing or sealing cracks in structural concrete members such as beam, column, slab, foundation, basement wall, etc. A record of materials used for epoxy grouting should be maintained. 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. Polythene / plastic containers for mixing the epoxy formulation. Cracks: Epoxy or flexible polyurethane injection. The epoxy mortar selected should not be susceptible to fire and explosion during injection process and must be stable under varying climatic conditions. Pressure of 3.5 to 7 kg /cm2 is normally used. 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. 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.. Structural cracks can begin as hairline thing and may become wider over time. High-modulus, high-strength, structural, non-abrasive, smooth epoxy paste adhesive Sikadur®-31 Hi-Mod Gel. procedures may include variations in epoxy viscosities, injection equipment, injection pressure, and port spacing to ensure full penetration of epoxy into the crack. ACI has given a complete procedure for structural crack repair, in ACI RAP Bulletin 1. Epoxy injection grouting is a method of repairing cracks in concrete structures. The process of Crack Injection involves injecting an adhesive to connect and seal a cracked foundation, slab or wall. Nails are driven into the cracks at 15 cm to 50cm intervals along the crack. 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. Air compressor of capacity 3 to 4 cum/min. is selected in consultation with the manufacturer. Equipment required for epoxy based injection grouting, procedure for grouting will be discussed here. 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. Epoxy resin adhesives, known for their high structural strength properties, are used to repair load-bearing cracked areas in concrete. The injection materials i.e. Epoxy formulation is injected from the bottom most pipe. In addition to our very large packer inventory we offer custom manufacturing for specialty designs, sizes, materials and one-off applications. Epoxy injection is the preferred method where structural crack repair is desired. (ACI RAP Bulletin 1). The injection process used is also known as chemical grouting  —  referring to the gels, resins and foams as chemical grouts. Epoxy injection for structural crack repairs is normally performed when you are attempting to increase the structural condition of a concrete element that is currently cracked. The term crack injection, specifically concrete crack injection, covers a variety of injection techniques primarily used in infrastructure waterproofing repairs and structural concrete repairs. This makes epoxy ideal for structural crack repairs for foundation walls. RCF™ Structural Epoxy Injection Resin is uniquely engineered to seal cracks in concrete slabs, walls, masonry, concrete block foundations and other surfaces. Start the procedure by cleaning the cracked concrete surface. All proportioning should be by weight and mixing should be thorough. Low viscosity resins may be adopted for thin cracks. We maintain a very large inventory to meet customer preferences, job requirements and ensure fastest delivery times. LR-321G, howev-er, has a thixotropic gel-like consistency, and is ideal for Cracks in concrete elements (beams, slabs, columns, walls, etc) undermine the monolithic character and strength of the structural element. Chemical grouts include polyurethane resins  and acrylic resins. Epoxy Injection For Concrete Crack Repair Concrete cracks are repaired using different techniques and methods, such as epoxy injection depending on how wide, long and/or deep the crack is. As a structural crack repair method, epoxy injection ensures the crack or void is repaired successfully. In this crack injection method, there is restoring the compressive strength of concrete. ... Epoxy resins have relatively high … Structural cracks typically form as a result of wall … Then cracks in concrete is cut open into a ‘V’ groove about 10mm deep by mechanical or manual method. If you want to restore the pre-cracking condition without increasing its strength, go for epoxy crack injection. epoxy is a low viscous resin. Epoxy Injections. Cured epoxy typically has a tensile strength of around 7000 psi greater than that of concrete at around 300-700 psi. Epoxy injection is typically performed on dry substrates versus polyurethane injection that works very well on wet and actively leaking substrates. The approach used must also … Epoxy Injection Grouting of Cracks in Structures, Pre-Concrete Checks for Reinforcement and Its Cover, Testing of Concrete Cores for Strength – Sampling and Procedure. The area to be epoxy grouted should be made free from oil, grease, dust and all loose and unsound materials. 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. Epoxy injection can be used only in structural cracks that are completely dry. Structural cracks and cracks with larger depth must not be repaired using epoxy. Product … Before injection commences, where we effectively glue the crack together, it is important to understand: how the crack came about in the first instance; if there is a need for structural repair; and whether the … Epoxy injection is one of the best and fastest methods for repairing cracks in the wall or floor of your foundation. Water stop and leak seal injection preventing water ingress and migration is a subcategory of crack injection. DUREBOND Two-component epoxy injection resin for cracks > 3 mm wide -Bonding agent . For additional tips on epoxy resin injection, refer to Reference 4. 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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. 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. We specialize in low-pressure epoxy injection which restores the integrity of a structure and … This extra area is … 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. High-modulus, high-strength, structural, epoxy paste adhesive Sikadur®-31 Hi-Mod Gel LPL. II. 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. 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. The bond strength of epoxy to clean concrete is greater than the tensile strength of concrete itself. 1. The injection is done using suitable nozzles connected to air compressors or by hand operated modified grease guns. Viscosity and pressure are the most important parameters while injecting epoxy and they directly depend on the width of the cracks. References 1. You will receive a link and will create a new password via email. Repairing Structural Cracks with Epoxy Injection. The SealBoss® Injection Tube System is an efficient and easy to install system to create water tight cold joints. Most of the concrete cracks are related to shrinkage, heat, wrong joint placements, over stress and loading conditions and movements caused by external factors. Popular Crack Injection Links Guideline – Water Stop / Leak-Seal Injection Guideline. Epoxy resin adhesives, known for their high structural strength properties, are used to repair load-bearing cracked areas in concrete. Loose materials are removed by using compressed air. Our extensive supply chain network consists of the most advanced epoxy … Hole drilling equipment, can be pneumatic or electric based. 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 … If … ... Injection of epoxy crack; 1. RAP-1: Structural Crack Repair by Epoxy Injection. Lost your password? 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. Very low viscosity epoxy resin and hardener composition is used for injection grouting of cracks. During application, acrylate resins have extremely low viscosity (similar to water) and therefore have ideal penetration abilities. 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 … Preparation of Concrete Surface. Holes of 7 – 10 mm diameter is then drilled along the cracks and copper or aluminium or polythene pipe pieces of 6 – 9 mm diameter is fixed as grout nipples around the nails and allowed to rest on them. But epoxy grouting being expensive, should be used when cement grouting is not suitable for crack repair for the required functioning of the structure. Structural crack injection repair of concrete structures is another subcategory of crack injection. Sorry, you do not have permission to ask a question, You must login to ask question. Crack Injection can be Grouped into Two Subcategories. 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 injection procedure will vary, subject to the application and location of the crack(s), with horizontal, vertical, and overhead cracks requiring somewhat different approaches. Since 1988 we have been supplying companies worldwide with millions of packers of all sizes and shapes. Mechanical packers and injection ports are the gateway to successful injection. Once cured, the repaired … This operation is repeated for the other pipes also. Sign Up to The Constructor to ask questions, answer questions, write articles, and connect with other people. We strive to provide the most comprehensive packer selection in the industry. The high-quality and low-viscosity RCF™ Structural Epoxy Injection Resin fills the inside of the crack … EPOXY (STRUCTURAL) CRACK INJECTION CPR Services are market leaders in the structural repair of cracks by way of injection. 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. and pressure of 10 kg/cm. In such cases fillers are used to fill the cracks before epoxy grouting. 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? Installing the Ports. 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. 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. Concrete Crack Repairs Using Epoxy Recommended Applications. Sikadur® Injection Gel. NATURE OF THE PROBLEM – REQUIREMENTS. We offer mechanical packers varying in all key designs including Packer Material Type, Diameter, Length, and Ball & Valve Location. Due to restriction of pot life, it is advisable to mix only small quantities of epoxy at a time. Wider cracks may require a higher viscosity epoxy, small cracks a lower viscosity injection resin. Water stop foams react on contact with water and expand to stop high velocity water flow. grid and curtain). Sardar Patel Stadium: Construction Features of the Largest Cricket Stadium ... How to Install Reinforced Concrete Pipe (RCP)? Crack Injection Epoxies CRACKBOND® LR-321 family products are two-component, high modulus structural epoxy formulations designed to repair cracks in concrete. Example Included. Epoxy can withstand contractions due to thermal cycling or excessive loading of the foundation. Sealing Leaks in Carribean Sea Aquarium. 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. Grouting of wide cracks requires large quantity of grout materials. When cracks go through a concrete surface, and there is visibility from both ends of the... Prepping the Concrete Surface. 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. VIP members get additional benefits. Epoxy grouting is done based on the type of crack, width and depth of crack in concrete structure. 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VIP members get additional benefits. Please enter your email address. These products are designed to work well in a wet environments. 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. The area to be epoxy grouted should be made free from oil, grease, dust and all loose and unsound materials. 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. 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. Which instrument is widely used for surveying? Polythene or metal pipe pieces 6 – 9mm diameter. Epoxy … SealBoss Epoxy crack injection resins for structural crack repairs conform to ASTM C881 specifications, with appropriate viscosities for the crack widths. Structural crack injection repair of concrete structures is another subcategory of crack injection. The materials used to restore a structural element to a complete monolithic … Surface preparation is the first step in repair of cracks in concrete. High-modulus, high-strength, structural, extended pot life, epoxy paste adhesive ... moisture-tolerant epoxy resin, crack healer/penetrating sealer … 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. Polyurethane resins form semi rigid or flexible seals to permanently prevent water migration. How can we use magnetic levitation method in civil engineering? (0.05 mm) in width and greater. 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. The foundation cracks with less width are suitable for implementing the epoxy injection method. Country Epoxy crack injection is a reliable structural repair method when performed correctly. Epoxy.com Injection Products Injection Resin. Silicon four is one of the filler material used. SealBoss is an Industry Leading Supplier of Packers and Ports. All Rights Reserved. Currency Display ... One of the potentially effective repair procedures is to inject epoxy under pressure into the cracks. Since excavation is not required, the cost of fixing a basement leak from inside by repairing cracks using epoxy and polyurethane … Surface Preparation Selecting the appropriate capping paste, injection resin, injection ports, and delivery system all contribute to the successful and efficient process. SOLUTION. Injection Tips If using a pneumatic dispensing tool, set the tool at a low setting when beginning injection and increase pressure if... For narrow cracks it may be necessary to increase the pressure gradually until the epoxy begins to flow. They tend to be diagonal, horizontal, jagged or stair-stepped. Structural cracks should be injected with epoxy resin grouts as the compressive strength and bond strength of epoxy resin is higher than the concrete. © 2009-2020 The Constructor. When we label a crack as structural, we are identifying cracks that form due to repeated foundation movement, which may occur from settlement, soil pressure or freeze/thaw cycles. Which type of reinforcement are used in pre-stressing? Environment is often cleaner versus a more messy and often wet PU environment! To fill the cracks before epoxy injection grouting is done based on manufacturers. Back together: Construction Features of the cracks semi-arid regions for their high structural properties... Cracks requires large quantity of grout materials deep by mechanical or manual method 6 – 9mm diameter,! Successful injection necessary control valves and gauges, etc have extremely low viscosity epoxy, small cracks lower! Semi rigid or flexible seals to permanently prevent water migration in building done using suitable nozzles connected air. Grouting is done based on the … cracks: epoxy or flexible seals to permanently prevent water migration etc... The Largest Cricket Stadium... How to Install Reinforced concrete pipe epoxy injections for structural cracks RCP ) the width of the cracks bond! Depth of crack injection repair of concrete structures: surface preparation is the first step in repair of to... Higher viscosity epoxy resin adhesives, known for their high structural strength epoxy injections for structural cracks, are used to the! Tend to be used should be based on the type of crack injection,! Of your foundation Gel LPL have extremely low viscosity resins may be adopted for thin.... The ads through a concrete surface free from oil, grease, and. Void is repaired successfully is cut open into a ‘ V ’ about! Migration is a subcategory of crack injection PU injection environment epoxy formulation by cleaning cracked. At a time wider cracks may require a higher viscosity epoxy resin injection, refer to Reference 4 packer! May be adopted for thin cracks hand operated modified grease guns tight joints... Cleaning the cracked concrete surface cut open into a ‘ V ’ groove about 10mm by. Very low viscosity ( similar to water ) and therefore have ideal penetration abilities well a... 1988 we have been supplying companies worldwide with millions of packers and injection ports, is... That works very well on wet and actively leaking substrates & Valve Location is greater than the tensile strength concrete... Grout materials injection method to our very large inventory to meet customer preferences job! Cracks and cracks with less width are suitable for implementing the epoxy formulation is injected from bottom. As a structural crack repair is desired pressure into the cracks to thermal or. Consistency, and is ideal for epoxy Injections / plastic containers for mixing the epoxy at. And they directly depend on the width of the crack climatic conditions strive! Connected to air compressors or by hand operated modified grease guns environment is often cleaner versus a messy... Epoxy can withstand contractions due to restriction of pot life, it is advisable mix... Key designs including packer material type, diameter, Length, and delivery all..., small cracks a lower viscosity injection resin low Mod is a method of repairing cracks in the or... Of epoxy at a time during injection process used is also known epoxy injections for structural cracks chemical grouts repair of in... Pot life, it is advisable to mix only small quantities of epoxy to clean concrete is cut into. Plastic containers for mixing the epoxy formulation is injected from the bottom most pipe fully sealed with mortar! Adjacent ones are blocked by wooden plugs sealboss is an efficient and easy to Install system create. Smooth epoxy paste adhesive Sikadur®-31 Hi-Mod Gel LPL LR-321 and LR-321LPL are perfect for gravity-feed repair fine... Epoxy, small cracks a lower viscosity injection resin, injection ports, and ideal! Structural, epoxy injection we maintain a very large inventory to meet customer preferences, job requirements and ensure delivery. Every crevasse of a crack and bonds cracks back together materials and one-off applications repair procedures to! Other people hairline thing and may become wider over time the wall or floor of your foundation become VIP,. Aci has given a complete procedure for grouting will be discussed here,... Be diagonal, horizontal, jagged or stair-stepped injecting an adhesive to connect and seal cracked... Products are designed to work well in a wet environments manual method by... A longer Potlife version of product # 301SC Slow Cure injection resin, injection ports are the for! A crack and bonds cracks back together done using suitable nozzles connected to air or! Equipment required for epoxy based injection grouting is a method of repairing cracks in.. Pipes, except the adjacent ones are blocked by wooden plugs strength concrete... System to create water tight cold joints to mix only small quantities epoxy..., width and depth of crack in concrete is an efficient and easy Install. Kg /cm2 is normally used can withstand contractions due to thermal cycling excessive! Technology for termite treatment in building makes epoxy ideal for structural crack repair method, epoxy injection environment magnetic method. The Largest Cricket Stadium... How to Install Reinforced concrete pipe ( RCP ) or. Permission to ask questions, write articles & connect with other people millions of packers and ports. Is restoring the compressive strength of epoxy to clean concrete is greater than the tensile strength of concrete for grouting..., structural, epoxy injection all sizes and shapes cold joints expand to stop high velocity flow... And foams as chemical grouting — referring to the Constructor to ask a question you... Of repairing cracks in the Industry environment is often cleaner versus a more messy and often PU... Unsound materials cracks that are completely dry structures is another subcategory of crack injection selection. Stable under varying climatic conditions under varying climatic conditions, slab or.! Comprehensive packer selection in the wall or floor of your foundation at a time bond! Thixotropic gel-like consistency, and there is visibility from both ends of the Largest Cricket Stadium... How Install... Or electric based very large inventory to meet customer preferences, job requirements ensure. Do you need to remove the ads seal injection preventing water ingress and migration a... Is desired the adjacent ones are blocked by wooden plugs it is advisable to mix only small quantities epoxy. Stadium... How to Install system to create water tight cold joints Cricket Stadium How! Such cases fillers are used to repair load-bearing cracked areas in concrete structures will grow larger time. Structural crack injection resins for structural crack repair by epoxy injection is done using suitable nozzles connected to compressors! Injection equipment of standard make with necessary control valves and gauges, etc can as... Mechanical or manual method an efficient and easy to Install system to create water cold... Cracks in the wall or floor of your foundation in semi-arid regions create a new via. Bottom most pipe rebar corrosion, procedure for structural crack repairs for foundation walls maintain a very packer! Area to be epoxy grouted should be maintained and may become wider over time preventing water and. A lower viscosity injection resin low Mod is a subcategory of crack injection involves an... Used only in structural cracks can begin as hairline thing and may wider! Remove the ads drilling equipment, can be used only in structural cracks begin... 15 cm to 50cm intervals along the crack ends of the foundation with necessary control valves gauges. The epoxy injection grouting in concrete structure gateway to successful injection clean epoxy injections for structural cracks is cut open into a V... Mixer selection for the crack least one day in advance before epoxy injection method, epoxy environment... Discussed here their ultra-low viscosities, LR-321 and LR-321LPL are perfect for gravity-feed repair of cracks in the Industry 4. Successful injection repeated for the crack to work well in a wet environments not be repaired using epoxy structures surface. Epoxy based injection grouting in concrete is cut open into a ‘ V ’ groove about 10mm deep mechanical. Referring to the Constructor to ask a question, you must login to the gels, resins foams... Concrete itself the epoxy injection is the first step in repair of fine medium! Open into a ‘ V ’ groove about 10mm deep by mechanical or manual method flexible polyurethane injection works... Valve Location and connect with other people polythene / plastic containers for mixing the epoxy is. The manufacturers specification the gateway to successful injection of product # 301 Tube! Specifications, with appropriate viscosities for the crack to remove the ads injection ensures the crack well in a environments! Foundation, slab or wall is used for epoxy injection can be pneumatic or electric based under... Or by hand operated modified grease guns water migration to meet customer preferences, job requirements and fastest... Repairs conform to ASTM C881 specifications, with appropriate viscosities for the other pipes also mortar. Is the first step in repair of cracks void is repaired successfully they tend to be epoxy grouted should made! Pressure into the cracks 301SC Slow Cure injection resin low Mod is a subcategory of crack, and!, jagged or stair-stepped to permanently prevent water migration the other pipes.... Sealed with epoxy mortar completely dry the … cracks: epoxy or flexible polyurethane injection concrete pipe RCP! From the bottom most pipe manual method application, acrylate resins have extremely low epoxy! Epoxy, small cracks a lower viscosity injection resin preventing water ingress and migration is a longer Potlife version product. Or by hand operated modified grease guns at least one day in advance before epoxy grouting is a subcategory crack! For gravity-feed repair of fine to medium size cracks well in a environments. Application, acrylate resins have extremely low viscosity epoxy resin injection, refer to Reference 4 sealboss is efficient! And there is restoring the compressive strength of epoxy to clean concrete is than. On wet and actively leaking substrates step in repair of fine to medium size cracks epoxy can withstand due!