Bond-Breaker Strips: Asphalt-saturated, organic roofing felt complying with ASTM D 226, Type I (No. Non-membrane bond breakers can be either reactive or non-reactive. Wind loads which act on lifting a precast member, are an example of dynamic loads. SDS. SPEED-E-JOINT consists of two solid pieces that have been pre-assembled for easy handling and installation. . The function of a geotextile bond breaker is to reduce the stresses that can occur if two cementitious pavement layers bond. The tape does not allow the sealant to adhere to the tape backing allowing the seal ant joint to only adhere to the two cement sides. thickness widths* slab widths. It is lightweight, highly flexible, and easy to cut or form in the field without waste. Download our popular SpecChem app for all devices. Partitions. - Shoreline Protection with EcoTubes™ Reduces materials cost versus traditional hot mix layer, Installs faster & easier than an asphalt interlayer. Bond breakers do not affect the characteristics of concrete surfaces. 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All Rights Reserved. This includes the construction of structures such as warehouses, manufacturing plants, schools, hospitals, offices, and residences. Apply 1-2 coat(s) at 0.1 - 0.2 l/m2 per coat. Bonded concrete overlay (BCO) consists of a 2-in. Also, Read:10 Best Cement Companies In India. material with a surface skin - Open cell backer rod: primarily a foam material without a skin - Bicellular backer rod: sometimes called "soft" rod, this foam acts like a hybrid between open and closed cell rods - Bond Breaker Tape or Backing Tape: primarily a self-adhesive polyethylene or Teflon material - Hard rectangular . Spray at right angles to the cure coat spraying pattern. Over-application can result in delays due to drying, discoloration, panel surface dusting, surface irregularities, etc. Bond breakers are normally used on tilt-up walls and precast segments to ensure the right pieces are cast together. Product Data Sheet (PDS) PDF - 254 KB (en) Sikaflex 2c Slope Grade. Terms of Use, USA Canada Franais Espaol International. It strips quickly and can be reused or left in place. Links to Various Materials Approved Lists. 1.02 REFERENCE STANDARDS Except herein modified, concrete work shall conform to the latest requirements/edition of ACI 301, Specifications for Structural . To prevent the sealant adhering to the base surface or filler board, apply Bond Breaker Tape along the whole width / length of base of the joint. Bond breakers are similar to anti-stick material, applied on adjacent metallic and nonmetallic substrates such as concrete and steel, used in construction projects. Complies with National AIM, OTC Phase I and II, LADCO, Utah R307-361, CARB SCM 2007, and SCAQMD maximum allowable VOC requirements. Sufficient application of the bond-breaker is the responsibility of the contractor and not W. R. MEADOWS, INC. Can anyone point me in a direction? May be easily scored with a razor tool to create a void forPOURTHANE. However, we can offer products to meet any specific specification. A bond breaker is applied to the surface of the formwork before pouring concrete into the precast concrete. SPONGE RUBBER EXPANSION JOINT is produced to a uniform thickness and density from gray-colored, top-quality, blown sponge rubber. Membrane-forming bond breakers are formulated as per ASTM C-309, the standard specification for liquid-membrane-forming compounds. Learn more . Workers should use a bond breaker or backer rod to install mastic in joint bottoms, which prevents the sealant from sagging into joints. It has a high expansion, crash resistance, and up to 100% elastic material. A sealer is soft and able to accommodate the concrete slab's expansion and contraction. This pressure sensitive adhesive is generally suitable even for irregular surfaces. Prior to any full-scale application of a subsequent paint, coating, sealer, adhesives sealant, grout, etc., W. R. MEADOWS recommends appropriate field testing be performed to verify that all desired/required appearance, performance, adhesion, etc. DESCRIPTION A tough, lightweight, easy-to-use, semi-rigid joint filler available in strips and shapes fabricated to most requirements. Wherever, CERAMAR is a flexible foam expansion joint filler composed of a unique synthetic foam of isomeric polymers in a very, SPONGE RUBBER EXPANSION JOINT is produced to a uniform thickness and density from gray-colored, top-quality, blown sponge rubber. The provision to accommodate movement at predetermined locations with proper joint applications prevents the development of stresses that could rupture the concrete. TDS. When a Silcoseal advantage is applied to the surface of concrete, the concrete reacts with the hydration process and consequently prevents the surfaces from sticking. When a bond breaker is needed at a construction joint, a curing compound, form release agent and the like can act as a bond breaker. Bond breaker Tapeis black self adhesive polyethylenetape that has excellent conformability to irregular surfaces. Wax is also a popular bond breaker material which is being used by many countries. Por-Rok Concrete Patch. Thinner joints (1/4, 3/8, or 1/2) (6.35 mm, 9.53 mm, or 12.7 mm) spaced at frequent intervals offer greater control than thicker joints spaced at greater intervals. HIGHLY FUNCTIONAL JOINTING AND SEALING SYSTEM: CERAMAR horizontal sealant from W. R. MEADOWS may be used to provide an excellent horizontal sealing system for plaza decks, sidewalks, driveways, and commercial and industrial floors. Polyurethane sealants are known as fillet joints. Bond breaker systems can be optimized by installing foam backing rod in the junctions, on top of the cured membrane, before laying the screed. German engineers have been successfully using non-woven geotextiles as bond breakers for decades. Join now! The backer rod most importantly acts as a bond breaker, preventing what is commonly referred to as threesided adhesion. Concrete bonding agents could be natural material or synthetic material. Static loads are which, whos value is constant, and the amount of the dynamic loads, continually changes. If TILT-CRETE application as a cure to the casting slab is delayed for several hours or until the following day, the surface should be moistened with water before application of TILT-CRETE. Apply backup rod and bond breaker tape in expansion joints. TILT-CRETE may be applied with a commercial hand sprayer, such as a Chapin 1949. ASPHALT EXPANSION JOINT, SPONGE RUBBER EXPANSION JOINT, CORK EXPANSION JOINT and SELF-EXPANDING CORK EXPANSION JOINT, 10 (3.05 m) Thank you! Due to its unique self-sealing characteristic, no subsequent joint sealing is required. | Types of Asphalt Shingles. Bond breakers are used to break the bond between the substrate and the waterproofing membrane, forming an adjustable bridge, which resists the movement of water or moisture. TILT-CRETE should be protected from all contaminates while drying. Concrete expands and contracts with temperature and moisture changes. Concrete Bonding Adhesive has very strong adhesive characteristics that eliminate the need to roughen up the surface of the existing substrate before applying new material. Legal Notices / Imprint SHELF LIFE Also, Read:Difference Between One Way Slab and Two Way Slab | What is Slab. These compounds permit newly cleanly and easily from a concrete casting bed or one another without detriment to the concrete strength or appearance. Like this post? CERAMAR compresses easily for use with shrinkage-compensating concrete, and it may be used to relieve stress and pressure in concrete pavements. Reinforcing Steel (includes dowels, deformed tie bars, dowel assemblies, chairs and other . SPEED-E-JOINT offers an ideal solution, FIBRE LITE is a unique, light-duty forming material and expansion joint. And formwork can be reused. Which can be cost-effective and time-saving for large structures. Concrete elements are generally of two types; those are Precast and cast-in-situ construction. Flexible, lightweight, and can be formed around curved objects. Required fields are marked *. Concrete Constituent Materials (i) Type GU Normal Portland Cement (ii) Fly Ash (iii) Aggregates (iv) Water (v) Air-entraining Agents (vi) Admixtures . CERAMAR PRESSURE RELIEF is a flexible foam joint filler composed of a unique, synthetic foam of isomeric polymers in a, REZI-WELD FLEX is a gray, two-part, pourable consistency, premium-grade, moisture-insensitive, epoxy joint filler formulation. In case joint sealants are attached to the joint filler so that movement is prohibited, they can hardly perform their intended functions to seal the joints against water and debris entry. If it rains within 12 hours of application, TILT-CRETE will need to be reapplied. | Types of Beam Bridges | Advantage & Disadvantage of Beam Bridge, Also Read:What Is Cinder Block? or call Bond breakers reduce the time required to move heavily loaded precast elements. Atlas Easy-Lift FD is a high-performance, chemically reactive, water-based, fast drying cure and bondbreaker for tilt-up and precast construction. fully compatible materials with proven adhesion, designed to meet the needs of these high movement and often irregular joints, is called for. The number of bond-breaker coats and coverage rate needed to achieve a complete uniform film is dependent on the concrete mix design, placing and finishing procedures, environmental conditions, etc. Bond breaker tapes are used for isolating sealant and eliminating sealant adhesion to concrete and metal. Bond breakers used in tilt-wall construction, however, are specifically Section 430Portland Cement Concrete . Save my name, email, and website in this browser for the next time I comment. Concrete Primers, Releases and Bond Breakers, {{product.defaultVariant.defaultPrice.formatted}}, {{ product.minPrice.formatted }} {{ product.maxPrice.formatted }}, Discover better prices and Approval may be granted for the application of 1100 concrete cure or one of the VOCOMP series cure-and-seal products from W. R. MEADOWS to be used as a cure coat prior to the application of TILT-CRETE as a bond-breaker. The efficiency of formwork can be increased. Like this post? A concrete bond breaker is a water-based bond breaker. It preserves the characteristics of the concrete surface, allowing them to painted or modified using different architectural components, thus making the precast elects, visually appealing. Position geotextile carefully and let it set until a strong bond is formed. Whenever a casting of the slab is done, it requires an adequate quantity of water, so that the chemical reaction between cement and water can progress uninterruptedly. bond joint occurred with an increase in the bond breaker length, whereby with bitumen coating as bond breaker material, this effect only occurred f rom a length o f 6 00 This helps the lean concrete to prevent excessive stiffness during the placement of the PCC layer. Site Map What are the different types of handrails used in bridges? DECK-O-JOINT will not whip or warp during application. Always apply to a test area first to determine actual coverage rate before full-scale application. FIBRE EXPANSION JOINT is composed of cellular fibers securely bonded together and uniformly saturated with asphalt to assure longevity. It is composed of a blend of asphalts and mineral fillers, FIBRE EXPANSION JOINT is composed of cellular fibers securely bonded together and uniformly saturated with asphalt to assure longevity. TILT-CRETE concrete cure and bond-breaker is a new, innovative, unique formula of proprietary, reactive organic materials in an aqueous dispersion. A BCO with a minimum thickness of 4 in. A non-reactive bond breaker interacts with the concrete surface to create a waterproof surface. $Aq(b 0```%l YC?&(30B@lpLs36PJ/"C2 Copyright 2022 White Cap Supply Holdings, LLC. Whether mixing the agent with a slurry or using an agent to bond two concrete surfaces together, a high-quality product can get the job done. For a unreinforced concrete pad it recommends dowel rods at joints with oil used as a bond breaker from the concrete. The bond breaker shall be applied at the manufacturing facility. 101 through 150. It has excellent moisture barrier properties, UV resistant, has long-term stability, and will not crack or crease the tape at low temperatures. RepCon 928. SDS. Store in dry conditions, protected from direct sunlight. The tape shall be compatible with the sealant. Bond Breakers. Rods are fixed between two adjacent surfaces of concrete. A bond breaker should always be used between concrete pavement and cement treated base. Features of Bond Breakers Used in Construction, Types of Bond Breakers Used in Construction, Advantages of Bond Breakers in Construction, Robotic Process Automation (RPA) in the Construction Industry. Other elements can be used to give an architectural effect. | Tributary Area in Column | How to Calculate Tributary Areas, Also Read:Light weight Concrete | Properties of Lightweight Concrete | Type of Lightweight Concrete | Uses of Lightweight Concrete. Concrete: Which Building Material is Better? Concrete mix designs that contain in excess of 20% pozzolans such as fly ash may require additional coats of the bond breaker. A spray nozzle that produces a flow of 0.4 GPM under 40 psi (.276 MPa) of pressure is recommended. Easy application by brush or sprayer Non - Hazardous, Non Toxic Non - Staining Product Data Sheet Safety Data Sheet Show all documents Overview Product Details Application Documents Usage Sika BondBreaker W is used for "match-cast", "tilt-up" and "tilt-slab" constructions. SDS. All Rights Reserved. The main function of bond breakers is to minimize dynamic loads during lifting or stripping of precast members and permit their complete, clean separation from casting slabs or molds. It is waterproof, permanent, flexible, and self-sealing. The bond breaker reported to have been used on the casting slab was a chemical reactive organic curing agent and bond breaker (without wax or hydrocarbon resins). Share it with your friends! Privacy and Cookies Policy When bond breakers are applied on a surface it substantially reduces the dynamic loads acts on the concrete, and also enables stripping of concrete members and permits their clean separation from casting slabs or moulds. Your email address will not be published. If the water beads-up or forms a bubble and does not penetrate the concrete surface, it is sealed. X-FOAM is available in two thicknesses and 1, EXPANSION JOINTS Materials & Equipment. Offers high resiliency and 99% recovery qualities low compression values non-extruding virtually non-absorbent. 6.3.2. A non-reactive bond breaker bonds with a concrete surface to create a waterproof surface. Pleasecontact usto discuss your bond breaker geotextile specification. So that cracks in concrete can be minimized. Along with this growth, the use of bond breakers has also increased. A bond breaker can be used on deteriorated pavements exhibiting rutting,d cracking from fatigue and freeze/thaw or map cracking due to the expansive pressure of alkali silica reaction. 5, 6, 12 Bond breakers are available in the market in various forms, such as liquids, taps, rods, and sprays. A bond breaker is a separator applied between surfaces of concrete. TILT-CRETE is not recommended to be used with any other manufacturers bond-breakers. Or is per the dowel rod manufacturer's recommendation? Bond Breakers Sec 2 2-3 Guide to Tilt-Up Bondbreakers A bond breaker is a 'material used to prevent adhesion of the newly placed concrete to the substrate'*. SPEED-E-JOINT Always verify the presence of a uniform bond-breaker coat as indicated by a dry, soap-like feel prior to placing panel concrete. It avoids compression cracks on tilt-up walls. After the TILT-CRETE film is dry, normal rain should not affect the surface. It is a chemical-resistant, ultraviolet stable,. I am looking for a bond breaker tape that I can use for hot pours (hot tar). As the temperature drops, the concrete will contract. Although the use of it includes certain drawbacks, it is still popular as a significant bond breaker material. Do you folks carry that? Product may be cut on jobsite to exact size required. Formulated and recommended for use with Brickform Texture . W. R. MEADOWS technical services department, Solvent-Based Curing and Sealing Compounds, Meets the moisture retention requirements of ASTM C 309 on steel-troweled surfaces. RepCon H . Bonds easily with common cartridge adhesives. There have been several instances across Texas where excessive cracking and premature failures occurred when a concrete slab was placed directly on cement treated base. Construction is on the rise nationally and internationally. Liquid bond breakers are preferred over bond breakers in spray form. thick concrete layer placed on top of the existing concrete pavement with operations conducted to ensure full bond between new and old concrete layers. For further application instructions and contractor responsibilities and assurances, please contact the W. R. MEADOWS technical services department. It is easily compressed and has a recovery of 95% or more of the original thickness and a density of not less than 30 pounds per cubic foot (480.56 kg per cubic meter). Bond breaker tape: primarily a self-adhesive polyethylene or teflon material. You are accessing "{currentSite}", it seems you are accessing it from "{currentCountry}". Bond breakers can be used to improve joint performance. It is quick and easy to install. When you join you get additional benefits. An SCP application is not a coating and has no negative effect on bond integrity. Polyethylene bond breaker tape is mainly used in joint cavities where the sealant is very shallow or in other situations where it is undesirable for the sealant to stick to a certain surface. Bond breakersare normally used on tilt-up walls and precast segments to ensure the right pieces are cast together. (1.5, 1.83, 3.66m), 3, 3.5, 4, 6, 8 Lost your password? In some countries, petroleum-based materials have been in use. Because many backup materials act as bond breakers, a separate bond breaker material is not always required. 2023 W. R. Meadows, Inc.All rights reserved. KEYWAY is lightweight, flexible and an easy way to mold a keyed tongue and groove construction joint. | Type of Plaster | Type of Plaster Finishes, What Is Tension?
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