Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. Be sure to coat down the side of the pier past the expected depth of concrete cap. 0000007014 00000 n SUPPLY Bondbreaker B is available in 20 litre drums. control joints spaced every 25 ft (7.62 m). 0000007318 00000 n This premium-grade bondbreaker contains organic compounds that react with the excess lime in concrete. 0000040018 00000 n While these attributes are the primary basis for concrete masonrys popularity, performance should not be taken for granted. Reducing the amount of time needed to move loads, Ensuring surfaces are sprayed efficiently, The ability tore-use the form multiple times, Preserving thecharacteristics of the concrete surface, allowing them to be painted or modified using other architectural components, Allows and will not affect the adhesion of epoxy, adhesives and/or floor finishes. Using the same type of detail as for the unreinforced wall would require the control joint to cross the vertical reinforcement, thereby preventing movement and defeating the purpose of the control joint. Reinforcing Bar Positioners: Wire units designed to fit into mortar bed joints spanning masonry unit cell with loops for holding reinforcing bars in (formerly Sonolastic NP1) One-Part Polyurethane Caulking Sealant, TAN rice/Tube. When a bond breaker is needed at a construction joint, a curing compound, Bond breakers are applied on surfaces that will be eventually joined together since once the concrete is poured, they will be inseparable. Trowels:- Hand- Power Wood Chamfer 0000029207 00000 n the bonding of subsequent concrete pours. In seamless bridge systems, the bridge deck connects directly to a transition slab that provides a link with conventional pavement systems. Swift Lift Plus Recess Plug The dowels are typically greased or placed in a plastic sleeve to prevent bond and allow unrestrained longitudinal movement. US/MC-SAE Threaded Splice Bar 0000015427 00000 n You'll get a prompt reply! endstream endobj startxref The joints permit free longitudinal movement, and some also allow the transfer of lateral or out-of-plane shear loads. Non - Staining Does not interfere with concrete placements Can be used as mould release agent as well PRODUCT INFORMATION Chemical Base A modified wax compound Packaging 25 l/gallon 200 l/drum Appearance / Colour Milky white Type B-4 Cushion - Lock Reglet Ties 0000007571 00000 n Curing: 200 400 sq. T Anchor An alternative to avoid having the vertical reinforcement cross the slip plane is to place the reinforcement in the next cell over. TILT-CRETE has excellent stability and does not require continuous mixing throughout the application process; the material must be mixed only prior to application. Cures concrete casting slab and top of tilt-up or lift-slab panel. Threaded Plastic Plug A bond breaker is a substance applied to concrete surfaces to guarantee that there is permanent bonding between the surfaces. Easy-Lift E is applied to the concrete casting slab to efficiently prevent See Table 2B for horizontal reinforcement spacing translating to 0.034 in./ft (72.0 mm/m) of height. 8). However, depending on the type of facing, considerations should be given to crack control in the facing material as well. Although the detail shownin Figure 4a is considered the typical construction, research suggests that the joint profile shown in Figure 4b may offer improved performance because the flat profile reduces peeling stresses at the corners of the sealant. Bond breakers are normally Shrinkage cracks in concrete masonry are not a structural concern. Both would actually be better. Over-application can result in delays due to drying, discoloration, panel surface dusting, surface irregularities, etc. For example, locating control joints at the ends of lintels may compromise arching action. This premium-grade bondbreaker contains organic compounds that react with Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a parts function at the center of their design considerations. Cured material can only be removed with difficulty using Resiloc Thinners. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Wall Plug WebA bond breaker is a material used to prevent adhesion of the newly placed concrete to the substrate*. ]$Ez'3BxyrHCs pHuNmX}\eB47Ar3x!ILCnT_3Ix+N!C{*{?y%Pzn$.(9(}] Ijcj2R\"r#GVw |agNAcXL WebProvides improved resistance to the osmotic effect by restricting the natural tendency for water to migrate from freshly placed panel concrete through the bondbreaker film and We have received your request and will respond promptly. Wallform Components The polyurethane material does not adhere to sealants, so proper 2-sided joints are created and the joint meets sealant joint specifications requireing a bond breaker. Water-Based Concrete Bond Breaker. Fire Resistance Rating of Concrete Masonry Assemblies. Resistant to Moisture: Virtually zero water absorption. 0000019356 00000 n Figure 3h is a variation on this approach, where one horizontal bond beam reinforcing bar extends across the control joint, and is similarly debonded to allow longitudinal movement. LEED INFORMATION 2023 NATIONAL CONCRETE MASONRY ASSOCIATION. at (above) movement joints in foundations and floors. Wedge (for use with Recess Member) Pour concrete and finish. When a bond breaker is needed at a The reaction produces a gel in the pores of the concrete which effectively forms a water impermeable barrier. See TEK 7-1C, Fire Resistance Rating of Concrete Masonry Assemblies (ref. Triple Flared Coil Loop Figure 4 shows details of the surface of a typical concrete masonry control joint. Waler Tie Excellent stability; does not require continuous mixing throughout the application; the material must be mixed only prior to application. This is your first post. A spray nozzle that produces a flow of 0.4 GPM under 40 psi (.276 MPa) of pressure is recommended. 2), for more information. It's purpose is to control the amount of caulking that goes into the joint, but more importantly, to "break" the 3 point "bonding" that occurs in the back of the joint and thus prevents the caulking from tearing open at this location. Swift Lift Attachment Nut Care should be taken when constructing this type of control joint to ensure that excessive mortar is not placed in the head joint of the two control joint units, whichcan potentially lead to bonding of the two panels. 0000029686 00000 n Waler Jack ft./gal subsequent concrete pours. I've not used isolation joint for this purpose before (needing to lift the slab). for tilt-up and precast construction. The provisions in this TEK assume that units used in the construction comply with the minimum requirements of ASTM C90, Standard Specification for Loadbearing Concrete Masonry Units (ref. At other points of wall stress concentration, control joints are used to effectively divide a wall into a series of isolated panels. at changes in wall thickness, such as at pipe and duct chases and pilasters. 0000002187 00000 n Similar to concrete masonry veneers, half high concrete masonry unit assemblies are installed with a larger percentage of mortar, which in turn has a larger potential for system shrinkage and therefore cracking potential. COVERAGE 0000002015 00000 n 0000014833 00000 n Bond breakers used in tilt-wall construction, however, are specifically Because no mechanical interlock is provided between the two panels separated by this joint, out-of-plane loads are not transferred across this joint. Easy-Lift E is applied to the concrete casting slab to efficiently prevent the bonding of subsequent concrete pours. Provide a continuous 1'x1' clean gravel or crushed rock drain for wall heights 3 ft. and higher. WebThe unique top tear strip is removed (during trowelling of fresh concrete) to quickly create an exact top joint shape for sealants. hb```b``b`e`jdd@ AGLdg(1wn78&+$j{nWsFEy-4~XXRS(c)/?rS2cu?_mu:hXsO`5KfZ#weNim4|6mt8lY+v~67b0E8hvnl USES Sika BondBreaker W is used for "match-cast", "tilt-up" and "tilt-slab" constructions. In addition, walls with adequate horizontal reinforcement may not require control joints, as the reinforcement effectively reduces the width of shrinkage cracks. Traveler Form System Stud Rail properties are achieved. Please refer to ACI 551.1R: Guide to Tilt-Up Concrete Construction for additional recommendations. The reaction produces a gel in the pores of the concrete which effectively forms a Tie Key Thin Slab Ferrule Insert 6. 0000060103 00000 n The tape shall be compatible with the sealant. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Surface Preparation The casting bed should be clean and free of dust, dirt, and foreign matter. TILT-CRETE should be protected from all contaminates while drying. WebBond Breaker Tape 8891 Technical Data June, 2012 Product Description 3M Bond Breaker Tape 8891 is a black polypropylene tape that provides a unique way to break Reminder: it is very important that nonstructural reinforcement, such as horizontal joint reinforcement which is typically used for crack control only, should not be continuous through a control joint, since this will restrict horizontal movement. 0000054198 00000 n However, if the opening is completely surrounded by reinforcement as shown in Figure 2c and 2d, the area around the opening is strengthened and control joints can be placed away from the opening. 0000054424 00000 n As an alternative to extending the lintel reinforcement a minimum of 12 in. Membrane forming bond breakers will hold water in the casting slab, and they are formulated to meet ASTM C-309, the standard specification for liquid-membrane-forming compounds. US/MC-SAE Coupler Unroll and cut to length. %%EOF Are there VOC requirements that need to be addressed. Thereader is referred to TEK 10-4, Crack Control for Concrete Brick and Other Concrete Masonry Veneers (ref. TILT-CRETE concrete cure and bond-breaker is a new, innovative, unique formula of proprietary, reactive organic materials in an aqueous Bond breakers are normally used on tilt-up walls and precast segments to ensure the right pieces are cast together. Already a Member? Environmentally Friendly: Material is CFC and HCFC-free. Bond Breaking: 200 400 sq. They can also be divided into water-based or non-water based products. TILT-CRETE cures the concrete floor or casting slab and top sides of panels once poured. It is applied to the casting slab to function as a bond breaker between the casting slab and the tilt-up or lift-slab panel. The product should be used where appearance is a prime consideration in tilt-up and lift-slab construction. First Bond Breaker Coat Application Apply TILT-CRETE to the point of rejection on the casting slab just prior to the placement of reinforcing steel. Spray at right angles to the cure coat spraying pattern. Sure-Guard Rebar Protector Tie Wire Manufacturers of chemical bond breakers are listed in the Concrete SourceBook and the December Buyers' Guide of CONCRETE CONSTRUCTION under "Bond Breakers." Careful though with sonotube you may have difficulty removing the concrete. One of my first slab on grades (when I was a real know-it-all rookie) I had plywood separation strips, and I was positive the concrete would shrink away and it would be easy to pull out the plywood strips betcha they are still there That's why I'm asking because I don't really know what to use. Complies with National AIM, OTC Phase I and II, LADCO, Utah R307-361, CARB SCM 2007, and SCAQMD maximum allowable VOC requirements. Shear transfer devices such as preformed gaskets or shear keys (such as those shown in Figures 3a, 3d, 3e, 3f, 3h and 3i) may not be necessary when using openings wrapped with reinforcement in wall segments designed to resist the lateral loads applied directly to them plus those transferred from the opening enclosure. / Terms, Copyright 2003-2022 Best Materials WebBefore placing concrete, broom clean structural slab surfaces and install bond breaker membrane where indicated. Flat Expansion Joint Foam, 6 rolls (300 Ft). PRECAUTIONS The polyurethane material does not adhere to sealants, so proper 2-sided joints are created and the joint meets sealant joint specifications requireing a bond breaker. 6 Rolls/Bag (300 feet). Stake Driving Tool Tilt Bracket 0000054312 00000 n Call us at 1-800-474-7570 or 602-272-8128 Privacy and Cookies Policy Potential cracking resulting from externally applied design loads due to wind, soil pressure, seismic forces, or differential settlement of foundations is controlled by structural design considerations not addressed here. Both would actually be better. 0000028938 00000 n When the tilt-up panel The backer rod provides a uniform foundation for the sealant. vL-Ys?1|g5{` :{41b4Z6c=?_vi{C?Lj J:.i^1TSoPrrL! x3`.3)&o[vF@162TcA2F_$'E}7mILqqsk(hvE}r#+P}m4C*FW0x+SggX0z r:g Lightweight: Over 11 times lighter than traditional products. Steel Ply PACKAGING TILT-CRETE Provides effective bond breaker between casting slab and tilt-up or lift-slab panel. Provide Organic Felt bond breaker on top and Expanded Polystyrene (" thick) on sides of retaining wall. 0000013590 00000 n Control joints are typically required in exposed above grade concrete masonry walls, where net aesthetic shrinkage cracking may detract from the appearance of the wall, and to limit moisture or air infiltration. Mirafi MPBBC1450 bond breaker is inert to biological degradation and resistant to naturally encountered chemicals, alkalis, and acids. 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. Terms of Use, USA Canada Franais Espaol International. (formerly Sonolastic NP1) One-Part Polyurethane Caulking Sealant, WHITE Color, Price/Tube. 0000008377 00000 n 9f^$xRdLKT:>40 s!0* A14 o1C.S(A8FQPp1E00lg)`Y"P 5gf,aec~r,d0. Highly Bendable: Easily creates tight radius / complex joints. However, due to congestion in the cell at this location, vertical reinforcement is sometimes placed in the second cell from the opening. Shoulder or Roadway Pavement is required on top of the junction slab for its entire length on the traffic side of the Barrier/Noise Wall. 0000001485 00000 n *Eng-Tips's functionality depends on members receiving e-mail. The reactive bond breaker will react, forming a crude soap. Atlas Easy-Lift E is a high-performance, chemically reactive, water-based cure and bondbreaker for tilt-up and precast Invalid list name. Stake for Dowel Baskets Easy-Lift E. Atlas Easy-Lift S is a high-performance, chemically reactive, solvent-based, fast drying cure and bondbreaker for Resistant to sunlight induced oxidation damage when panel concrete placement is delayed multiple days. Tilt-Up Braces When applied properly, Silcoseal Advantage reacts with byproducts of the concrete hydration process to create amorphous gels that prevent sticking and allow panels to lift easily. of subsequent concrete pours. The non-reactive bond breaker will interact with the concrete surface and generate a waterproof surface. Features: 0000014806 00000 n 1), for more detailed information. Welcome to WordPress. This information is generally available from the manufacturers of preformed gaskets. The unique top tear strip is removed (during trowelling of fresh concrete) to quickly create an exact top joint shape for sealants. Always apply to a test area first to determine actual coverage rate before full-scale application. The joint should be no deeper than its width, preferably depth is 1/2 the joint width. How will the finished concrete product be used and what type of chemicals, including sealants, adhesives, and coatings, will be applied on top of the concrete surface after the concrete has been poured? Normally, joint reinforcement is used in the common joint between the two to distribute the forces and keep any cracks that form tightly closed. %PDF-1.6 % x 25 Ft. Grey Concrete Expansion Joint Replacement. Wedge Bolt Attachment can be made with construction adhesive, nails or staples. Clay and Concrete Masonry Banding Details. I saw a drawing before where it used tar paper to separate existing footing to new footing. Tear Resistance: 14 (lb/in), ASTM D3575-00. Cast the slab separately from the piles, then set it on the piles. TILT-CRETE is not recommended to be used on broomed or rough surface finishes. Where the keying action is provided by concrete materials, a four-hour fire rating is provided. 0000054143 00000 n As such, the prescriptive crack control recommendations detailed in Table 1 increase the area of horizontal reinforcement and decrease the maximum control joint spacing of half high unit assemblies compared to full height unit assemblies. 6. Stiffback Bracket Always verify the presence of a uniform bond-breaker coat as indicated by a dry, soap-like feel prior to placing panel concrete. A')}jgojkMY?6mQ_ES^$Czm(Tl|f'h5SCj$5:;]"oM.GA(sv3?A@r1A~,h_1v+;e;LHK3*OOf Cleanup To remove improperly or over-applied TILT-CRETE from panels, W. R. MEADOWS recommends using a commercially available, heavy-duty, concrete degreaser/stripper. This keeps the joint weather tight while accommodating small movements. Webone hour before pouring concrete CLEAN UP All equipment should be cleaned immediately after use using water. Waterstops The depth of sealant should be approximately the joint width to reduce sealant strain, and hence extend sealant life. 5), for more information on fire resistance ratings of concrete masonry assemblies. When design necessitates the construction of a control joint that provides a rated fire resistance and out-of-plane load transfer, the control joints shown in Figures 3d and 3e can be used. / Privacy & Security Tip To Tip Tie Use asphalt felt (No. Sealant Compatible: Works with common sealants. Lap edges and ends of asphalt glass felt 6 inches. 0000016497 00000 n ASTM International, 2016. Welding Coil Tie 0000076360 00000 n :{R?CX6):RO@>{,Xrzh&!csxu48J[lcK9&O7 H-[CG@Y2cbNue9x@UWWw,v88R4 5V4z`}ektG:SLbrnQh~)gkh55p.yijmsOLg@x+f8 ] [4(tUb`fAk`UL!BZPi3 -=b@-np>/9GE]n5@'}gmehn670`CB*C%2*KB]NQmzznmkYLk&or8bf]c"s#=@#IQ(. 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. Easy-Lift FD meets all VOC regulations. The EOR is confused about the need for a COMPRESSIBLE material. When an unkeyed control joint is used, a simple and cost-effective means of constructing a fire-rated control joint is by using ceramic fiber felt, as shown in Figure 3b. WebIn applications where one of the above-mentioned joint sealants is used without SNAP-CAP, W. R. MEADOWS recommends the use of KOOL-ROD or a bond-breaker tape to When the tilt-up panel is poured, the barrier restricts These compounds permit newly cleanly and easily from a concrete casting bed or one another without detriment to the concrete strength or appearance. 0000076631 00000 n A flat backer rod foam design to create quality concrete expansion joints quicker and easier that traditional wood or composite spacers. The engineered method is generally used only when unusual conditions are encountered such as dark-colored units in climates with large temperature changes. 0000040739 00000 n It is placed to ensure that there is no adhesive molecular bond between the surfaces. Provides both curing and bond breaking eliminates need for double inventory and handling. 127 58 TILT-CRETE is low-VOC formulation that does not contain wax or hydro-carbon resins. Login. DESCRIPTION Any dull spots must be recoated. Questionable areas can also be tested by dropping water on the surface. If the water beads-up or forms a bubble and does not penetrate the concrete surface, it is sealed. Any areas accepting penetration of the water must be recoated until a positive seal is achieved. Swift Lift Attachment with Wings Nuts 9. Use asphalt felt (No. 0000001837 00000 n Standard Specification for Nonrigid Vinyl Chloride Polymer and Copolymer Molding and Extrusion Compounds, ASTM D2287-12. When used as a shear key to transfer out-of-plane loads between two panels separated by a control joint, the gasket material should be tested to determine its strength and applicability in this application. Evy%_FNZi-iYiF$wb*dPVEvVXi1w,H,M 4!}&r%Vr~ JR_yVI&f(^Vjrv{>Pg29SXeK= 0000009967 00000 n appearance. And 2) Thick applications of bond breaker can result in adhesion of tilt slabs to form slabs, resulting in pop-outs and other defects in the tilt panels. WebBond-Breaker Strips: Asphalt-saturated, organic roofing felt complying with ASTM D 226, Type I (No. hb```b``f`c`fd@ AV('1` I doubt actual "tar" paper is readily available. Threaded Steel Setting Plugs Provides effective bond breaker between casting slab and tilt-up or lift-slab panel. 0000006637 00000 n Expansion Joint material includes a built-in tear-off strip. Tension Bar Bond breakers also avoid shrinkage cracks on tilt-up walls. WebA bond breaker is a separator substance applied in between adjoining solid surfaces to ensure that there is no adhesive molecular bond between the surfaces.
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