Keyway joint concrete. : We are placing 4-inch-thick slabs.
Keyway joint concrete. both horizontal and vertical concrete projects.
Keyway joint concrete Mar 31, 2016 · Knockouts are also installed in each screed key joint in order to allow for doweling when necessary. 324 Concrete, like other construction materials, expands and contracts with moisture and temperature changes. Control Joints and Keyway. Keyway Splice Box Systems feature the exclusive use of the dovetail steel keyway. Typically, for jointed plain concrete streets, the joint spacing should be 24 to 30 times the pavement thickness with a maximum spacing of 15 ft (4. Where joints meet at right angles, key joint should be trimmed to fit as shown. vUnderstand the various types of equipment used to form joints. MFG#: MK45010. When stripped out later, a keyway is left in the concrete. Expansion and contraction joints for concrete. All Nail On Metal Keyways come with ⅞” knockouts on 6” centers that allow easy dowel positioning. In some cases the bulkheads are also used as screed rails for the next pour. Failure to place concrete equally on both sides of the joint may cause mis-alignment or bending of the Load Key. This keyway produces a locked joint which results in 1445 Fairfax Ave. Keyway Splice Box cases are fitted with two easily removed poly - styrene end caps that prohibit concrete from entering the casing. [Crystalline waterstop joint system consisting of waterstop grout and treatment for non-moving construction joints. Step 7: 1-1/8" knockouts are supplied, as shown, on 6" centers when doweling is specified. Select your local branch for best pricing. On continuous pours, concrete shall be placed to full depth on both sides of joint simultaneously. 99 Quantity. Products include joint formers, finish formers, concrete handling products, PVC waterstop splicing equipment and accessories, expansion boards, and epoxy. Shear tests on eight prefabricated concrete wall panels were Aug 27, 2024 · These joints can take various forms, including straight-line separations, keyway joints, and even transitional joints to connect new concrete with existing structures. The plans and/or Standards Drawings are required to be checked for the proper depth, width, line, and type of seal. distributors of the SD7 Joint-Saver device for stabilizing joints and cracks in concrete floors. superplasticizer $5. Dec 4, 2008 · For instantaneous movement under load, the list of repairs includes joint fillers, retrofit dowels, and mechanical joint stabilizers. Pouring the slabs. 00m (custom lengths available on request) Knock-out holes: Round holes dia 21mm at 150mm centres: Knock-out holes to suit For tips on this, check out Bob Harris's video or get a copy of his Guide to Stamped Concrete-joints are covered in Chapter 23. Key-Loc® Joint, minimizes spalling. About This Product. 01P, published by the Portland Cement Association, 5420 Old Orchard Road, Skokie, Illinois 60077. After the concrete is placed, a controlled crack develops from the Crack Inducing Waterstop through to the keyway. Here are the main types of construction joints commonly used in concrete work: 1. DESCRIPTION: Follow these instructions to install and waterproof crack control joints in concrete walls. concreterepairman. $3. SKU Construction Joints. One of the factors that we believe has led to our success is forging relationships with our customers. Even though these decks can be overlaid with portland cement or asphaltic concrete, these types of keyway joints often develop leaks on the underside of the bridge deck, wicking chloride laden salts into the precast concrete. Manufactured from a lightweight, yet impact resistant Low Density Polyethylene (LDPE), the Plastic Keyway is easy to use and reuse to create an interlocking joint in concrete. When PRO-KEY!" is used as a bulkhead or in a construction joint, knockouts shall be bent at 45 degrees into the concrete. Attach to formwork by means of glueing, nailing or screwing. Butt joints, also known as straight joints • Where the keyway is to be form e d , place an 8-foot-long beveled 2x4 on the concrete surf a c e . Brad Helminem is head of technical sales for Somero Matson Group LLC, U. When the re-steel is insufficient to resist shearing pressures through the plane of the key, keyways are utilized. It is produced in 10’ (120”) lengths for 4. A. It is also important to keep slabs as square as possible. SNAP-CAP is available in four widths as shown in the table on page 2. MEADOWS SPEED-E-JOINT 10 ft. 50 per cubic yard. 3 D (D=Conc. All manholes, meter boxes and other projections into the pavement shall be boxed-in with 2" preformed expansion joint material. KEYWAY resist impact and will not whip or warp. 512KEY 512KEY. LOCK SLOT™ stakes double as a butt splice. 1. Aug 7, 2019 · A key joint is a pre-manufactured device used to create control joints in concrete structures. These volume changes may produce cracks in hardened concrete unless they are properly controlled. 9. We also manufacture Block Caps and Weep Tubes. vLearn about the three joint types normally specified for a concrete pavement. Vulcan Metal Stampings’ Concrete Highway Center Strip Metal Keyway is manufactured in 20- or 22-gauge galvanized steel. 3. Nov 17, 2019 · Waterstop has a singular purpose: To prevent the passage of fluids across and along concrete joints. Three legs per 10 ft. Generally, they are made of galvanized steel or metal and can come in different sizes and shapes. Home / Concrete Forming and Accessories / Concrete Forming / Control Joints and Keyway / 10 ft. Apr 1, 1993 · But if the joint also is to serve as a control joint, the wire mesh defeats the purpose of the joint. Keyway Systems bometalsadmin 2023-12-19T11:52:48-05:00. 90% of our walls use a keyway in lieu of vertical steel in the footings. Specimen Design. Clips are only used when the pour is started on the stake side first. , San Francisco, CA 94124. Knockout sizes meet both ACI and PCA recommendations for the design of tongue and groove key joint. Designed to be economical for quick and simple installation minimizing labor time. Step 8: Load Key Joint will only support a manual screed, to strike-off concrete, when concrete is placed simultaneously on both sides of the Load Key before screeding. “The Investigation of Transverse Joints and Grouts on Full Depth Concrete Bridge Deck Panels. Fax: 415-282-4571 Nov 29, 2023 · To improve the shear performance and construction efficiency of horizontal joints in prefabricated concrete wall panel structures, an innovative keyway joint for prefabricated concrete wall panels is presented to maximize the contact area and joint friction, enhancing both the shear performance and the installation efficiency. Used to lock multiple on grade slabs together in tilt-up buildings, industrial floors, curbs, driveways and wherever specified. Wirthlin, and J. Keys can also be used as a bulkhead for a construction joint by bending the knockout into the pour. e. Keyway Caps are available for QuicKey and PRO-Key and come in removable and non-removable options. Therefore, the shear bearing capacity and stiffness of horizontal joints with epoxy resin concrete and keyways can match or even exceed those of fully cast the maximum joint spacing should be 15 feet. joint assures the positive interlock between the stake and key joint. It is a stay in place metal keyed control joint former. Impact and warping are not tolerated by KEYWAY. Add to List. 1/2 in. 24 gauge thickness with 7/8″ dowel knockouts every 30″ Connolly Key Joints are an expansion joint that provides a durable and rigid straight line that can be utilised for expansion joint forming in either end of pour or continuous pour situations. Using the QuicKey system reduces installation time and provides for a smoother, level pour. The use of a keyway can help stabilize the position of the Lockstop when the second pour is made. Contraction joints keyway joint, unidirectional shear load tests were conducted on eight prefabricated concrete wall panels with keyway joints. Dec 3, 2014 · The concrete is then laid and finished to the top of the ‘Key Joint’. This product is sold in 10’ lengths. Transverse joint spacing should not exceed 125% to Jun 1, 1984 · In concrete with rebars, the size and shape of a waterstop would depend on the type of joint--any of three basic kinds: 1) construction joint, which has practically no movement; 2) control joint, which has limited movement; 3) expansion joint, which has a greater movement. This flexible polyethylene strip is nailed to a form or header before pouring. It has square knockouts for square and round dowels. 5″ x 10′ Nail-on Keyway: and post-tensioned concrete construction markets. 5 In x 10 Ft Quickey Keyway. retarder $2. ” PCI Journal 40 (1): 44 BoMetals Control Joints and Keyway. Directly opposite the waterstop, form a 4 cm (1. 1R-89, "Guide for Concrete Floor and Slab Construction," ACI Committee 302 does not recommend keyed joints for slabs thinner than 6 inches, and also doesn't provide guidance for dowels in slabs thinner than 5 inches. Nov 29, 2023 · To improve the shear performance and construction efficiency of horizontal joints in prefabricated concrete wall panel structures, an innovative keyway joint for prefabricated concrete wall panels Home / Concrete Forming and Accessories / Concrete Forming / Expansion Board / 2-1/8 in. T h r ee types of joints are used in concrete floor con-s t r uction: isolation joints, control joints and constru c - tion joints. Available in 10′ lengths by the bundle or pallet. Select your local branch for best pricing and Connolly Key Joint is a high quality preformed metal key joint for the control of shrinkage cracking and differential movement in concrete slabs. • Use a 2-pound hammer to dri v e the 2x4 into the fresh concre t e , pushing up concrete from under Shear keys for basement walls: pros and cons The familiar key and keyway at the wall-footing joint present some construction problems Figure 1. I am a foreman for a footing crew at a concrete company doing almost exclusively residential formed walls. Swenty, M. Stakes interlock with slots to prevent the key from rising off the stakes. The use of Screed Key Joint minimizes random cracking. After the concrete sets, KEYWAY can be stripped easily to be reused, or it can be safely left in place. To place an order or request more information, please contact a sales representative. It also serves as an edge form, a contraction joint, and a screed rail. SKU#: 272QKCJ412. Install joint splices for perfect alignment of butt ends. Location of the key is 1/2 depth of slab as specified by ACI & PCA. 10 ft. Available in a range of sizes and types, please contact Jaybro for more information on the right product for your specific project. 324 JUNE 2013 (Supersedes February 2007) CONTINUED ON REVERSE SIDE… PLASTIC JOINT MATERIALS SPEED-E-JOINT ®, DECK-O ‘No-Cut’ Control Joint eliminates the need for intermediate saw cuts; Can be used on slabs up to 6” in depth; Made of 24-gauge material and used in conjunction with our 13-gauge stakes Home / Concrete Forming and Accessories / Concrete Forming / Control Joints and Keyway / 10 ft. A keyway is measured and formed directly opposite the waterstop. We have removable and stay in place keyway caps as well. Poole, CSI, ACI Earth Shield Tech Tip #012 (all material copyright 2019) publication date: 10/13/19 Step 1 — Place waterstop into the waterstop keycup former which is backed by wood Forming. Simply nail or staple KEYWAY to the form or header prior to pouring the concrete. The small amount of concrete above the keyway in a 4- or 5-inch-thick slab offers less resistance to spalling than in a thicker slab. , 11 Saw Cut Or Formed Joint Compression Seal 16" Preformed Elastomeric 9 Not Required For Construction Joints. QuicKey™ [Patent No. If desired, KEYWAY can be left in place. Other concrete products include Keyway Caps, Dovetail Anchor Slot, Expansion Board Caps, Zip Joints, Chamfer and Radius Formers plus much more. Feb 9, 2021 · Easily mold a keyed tongue and groove construction joint with KEYWAY. 4 Contact the Waterstop Experts Phone: 800-821-3859 California: 951-763-7077 [email protected] Qualified technical assistance is available during any phase of your construction project. Attributes: Economical and easy to use. Such provisions are termed control relief joints. This keyway produces a locked joint which results in Home / Concrete Forming and Accessories / Concrete Forming / Control Joints and Keyway / W. Key-Loc® Joint is a galvanized steel cold joint which is permanently left in concrete slabs. These bulkheads are often used as screed rails during placement and finishing of the slab. We offer a wide range of Redi Mix concrete and various concrete supplies for our customers in the High Point, Greensboro, Thomasville, Winston-Salem, Asheboro, Lexington, Kernersville, Archdale, and Jamestown, NC areas, including wire mesh, rebar, driveway sealer, keyway joints, fiber expansion joints, poly strip expansion joints, 6MM Jul 1, 1993 · Q. 48 lbs. It is used to prevent damage during expansion and contraction of concrete. Butt-Type joints are only applied where light vehicle and foot traffic are the heaviest loads on the slab. mudsill anchors (wall ties) $134. Oct 13, 2009 · Control joint implying that the pour is continuous thru the joint and not stopped at that point. Longitudinal joints will not be required for single lane pavement 14’ or less in width. We also sell stakes ranging from 12" to 24" long. 99 each. ) keyway. Keyway con-s t r uction is more difficult where re-i n f o r cement continues through the joint. Step 3 — Strip the formwork and the water-stop keycup waterstop former. In this article we study about the types of construction joints, locating of joints, quality and advantages of use of construction joints in concrete Types of Construction Joint Construction joints are classified into 4 types depending upon the type of joint. vStudy dowel and tie bars and know when and how to use them. Keyway legs are fixed into sub base with keyway staking pins. SKU May 1, 1997 · Typically a non-shrink grout is used to fill the keyway joint formed by two female-to-female shapes in the precast members. Easy to use. “Evaluation of Keyway Grout Test Methods for Precast Concrete Bridges. Keyway Systems. A keyway in construction refers to a groove or recess that is intentionally created in a concrete surface. Therefore, the shear bearing capacity and stiffness of horizontal joints with epoxy resin concrete and keyways can match or even exceed those of fully cast We keep a number of things in stock, including wire mesh, driveway sealer, fiber expansion joints, rebar, keyway joints, poly strip expansion joints, color products for stained concrete, 6MM polyethylene plastic, rebar chairs, and even hand tools. ” PhD diss. Keyway joints are widely used in concrete floors and pavements to facilitate load transfer, accommodate expansion and contraction, and minimize cracking and damage. Sometimes keyway joint are designed in longitudinal joint to improve the performance of the joint. Joints should be continuous and extend thro u g h i n t e g r al curbs. Item No. Unlike cold joints — which are unplanned — construction joints are designed with careful consideration to support load transfer and accommodate movement. Since dowels span the joint, daily and seasonal joint opening does not affect load transfer across doweled joints as much as it does undoweled joints. Joints are intentionally placed in concrete structures to allow controlled pauses during construction or to connect structural elements. How It Works. KEYWAY can be easily stripped and reused after the concrete sets, or it can be left in place safely. This contraction can lead to cracks or breaks in the surface of the concrete, or in tiles and other floor finishes installed over the slab. Add to Cart Nov 11, 2024 · What are the Types of Construction Joints in Concrete? Construction joints in concrete serve as controlled breaks within a structure to accommodate movement, manage cracking, and ensure structural stability. CONCRETE PAVEMENT JOINTS 305 As Specified In The Plans Joint Sealant Material To Be 8") (w +1 Tape Bond Breaker Or Crack Existing Joint Saw Cut Or Formed Joint 4"" to 1 8 1 4"" to 1 8 1 32" Max. Prior to pouring the concrete, simply nail or staple KEYWAY to the form or header. Contact him at [email protected]. The selection of the joint type is influenced by factors such as the structural design, load-bearing requirements, and environmental conditions. [Waterproof joint design for non-moving joints in concrete consisting of swelling waterstop and treatment to provide water tightness from a hydrophilic, swellingstrip and additional long -term performance from Home / Concrete Forming and Accessories / Concrete Forming / Control Joints and Keyway / 10 ft. 4-1/2"X10' Quickey Key Control Joint Bo Metals. Isolation joints (sometimes called expansion joints) a l l ow movement in both ve r tical and hori z ontal dire c - t i o n s . Suitable for most construction joint in concrete slabs. With your stakes and key joints in place, you can begin pouring slabs of concrete. After concrete has hardened, mix Krystol Waterstop Grout to a dry putty consistency and tightly pack keyway flush to the surface. KEY-LOC® Joint is manufactured from 24-gauge galvanized steel. TRANSVERSE CONSTRUCTION JOINTS A transverse construction joint is used when the paving operation is The Knock-out holes suit Danley™ Dowelmaster™ sleeves (16mm and 20mm) which provides concrete contractors with a full joint system that includes the dowels, sleeves and the formwork. The original interlocking joint-stake keyway system including Key-Loc Joint, Key-Loc Stakes, and Joint Splices to help you pour concrete you can count on. At Childers Concrete Company, we offer keyway joints that will best handle load transfer between panels for your various concrete projects. 6502359] is the only galvanized joint system that features knockouts for square dowels, which provide better load transfer over round dowels and also reduce edge curl on the slab. 00m and 6. 3-1/2In Plastic Keyway, 250Ft/Box. Features. For light duty slabs it's a good idea to use the smooth dowel method. Because of its resilient composition, Homex is installed neatly and easily, without danger of misalignment or breakage. If keyways are to be used in such circumstances it might be well to thicken the edge to 6 inches and use a keyway made for a 6-inch-thick slab. Though the installation of keyway joint does not appear to increase the load transfer efficiency of longitudinal joint, it proves to help reduce the deflection of concrete pavement. Howev-e r, keyways in vertical or horizontal c o n s t r uction joints are less eff e c t i v e than re i n f o r cement. PVC Expansion Joint Cap. Contraction joints Jan 25, 2019 · Tutorial on how to get a slab ready for concrete. com/foundation-repair/phoenix/ In general, floor slab construction is the foundation of most interlock Sika is proud to offer a broad range of concrete forming and placing products for concrete contractors. Virginia Polytechnic Institute and State University, Blacksburg, VA. Keyway. Home / Hand Tools / Concrete Screeds and Spreaders / Concrete Screeds / Dayton Superior 5-1/2" x 10' Screed Key For 6" Slab Dayton Superior 5-1/2" x 10' Screed Key For 6" Slab SKU#: 13220520 Mar 21, 2022 · A keyway in a concrete footing is to attach the foundation wall to the footing, prevent lateral movement of the foundation wall, and prevent water from entering the wall. KEYWAY PVC Tongue and Groove Joint Form. Feb 20, 2013 · Video of BoMetals QuicKey Installation for Control and Construction Joint to provide load transfer across a concrete joint. NOTE: Shotcrete applications require keyways to be formed during the Shotcrete application by one of the following methods: Jul 1, 1981 · The slab may be too thin. #2 Keyway Key Joint for 100mm slab: Key Joint for 150mm slab: Key Joint for 200mm slab: Key Joint for 300mm slab: Slab thickness [mm] 100: 150: 200: 300: Profile heights [mm] 90: 135: 180: 270: Length [m] Standard lengths 3. Excellent load transfer. As freshly-poured concrete begins to dry, it tends to shrink or contract. keyway stakes 15” $2. : In ACI 302. ð·ð With continuous placement, concrete shall be placed to full depth simultaneously on both sides of joint. This product is weather-resistant and meets the requirements of ASTM D 1751. Pour the concrete. G34 Load Key Joint Dayton Superior G34 Load Key Joint is 24 gauge steel avail-able in heights of 7-1/2" and 9-1/2". Install the Screed Key Joint and pour the concrete - finish flush to the joint and the slab is finished. They separate or isolate concrete slabs fro m FIBERFLEX® Fiber expansion joint is a joint filler made from proprietary wood fiber blend of treated wood fibers and additives which yields flexible, easy -to-handle boards. The primary purpose of a keyway is to enhance the bond between the existing concrete and the newly poured concrete. The details shown here are taken from "Concrete Streets: Typical Pavement Sections and Jointing Details," Concrete Information IS211. (Billed as 10′ lengths) USAGE: Keyway stands on metal legs which puts the keyway joint at half the pavement depth. KEYWAY resists impact and will not whip or warp. They are basically a galvanized steel tongue and groove formwork which when installed joins the slab to form the control joint. Keyways can contribute to Home / Concrete Forming and Accessories / Concrete Forming / Control Joints and Keyway / 3-1/2In Plastic Keyway, 250Ft/Box. It allows for Specially engineered to produce a waterproof crack control joint. Table 2 suggests joint spacings for various pavement thicknesses. Floor Slab Construction: https://www. Later, once the concrete has hardened, the next part of the concrete can be placed against the previous pour. Pavt. Construction joints should be worked into the overall joint plan, where they can also function as contraction joints. We offer a galvanized keyfold joint system for concrete slabs in depths of 3”, 4”, 6”, 8”, 10”, and 12”. Step 2 — Place first concrete pour. Positive stake-to-key lock of PRO-KEY™ [Patent No. For contro l joints and expansion joints, somebody has to know or estimate how much movement the concrete may deve l - o p. Provision for volume changes at predetermined locations prevents a concentration of crack producing stress forces. Dowel Systems and Load Transfer refers to the ability of a joint to transfer a portion of a load applied on a control joint, or on one slab to an adjacent slab. Screed Key produces a smooth, flush surface joint that requires no filling. ) to 1 4 1 Keyway Joints Form Includes Keyway Notch “Female” Side of Joint Cast “Male” Side of Joint Cast Concrete Shrinks and Joint Widens Load Transfer is Lost Unsupported “Female” Side Cracks Guidance to Concrete Solutions NORTH S ETARR CONCRETE CONSULTING, P. There are some risks associated with this detail because the reinforcement area at the joint is higher than that provided in the slab, so the shrinkage movement can form at the weakest point i. 1. BoMetals is also the nation’s top manufacturer of keykold joint systems. Danley™ Keyjoint complies with the requirements of AS 3727. Method using keyway and expansion joint to set grade and split the slab into smaller sections for decreased Installing and Waterproofing Crack Control Joints . Key Lock Joint 2” for 3” Construction Joints - Control Joints When indicated on drawings or called for in pecifications the contractor shall furnish and install Key-Loc Joint System,a one step interlocking joint-stake keyway system with ratchet top stakes, joint splices and optional stake clips. . Fax: 415-282-4571 Fasten Kryton Crack Inducing Waterstopto the exterior concrete form at the required control joint location. This is a combination of slab form, and keyway former with screed support for forming concrete floor slabs. Again, if no re i n f o rcing bars cross the joint, then m o vement may increase the width of the joint and in addition, the concrete on one side may shift in either di-rection, lengthwise or crosswise of the joint. The effects of the axial compression ratio, interface mortar Sep 28, 2024 · Additionally, incorporating a keyway on the joint surface significantly enhances the interlock between the old and new concrete, thereby improving the shear resistance of the joint surface. DECK-O-JOINT PVC Expansion Joint DECK-O-JOINT is a decorative expansion joint for use wherever concrete is Homex 300 expansion joint is a pre-molded paper cellulose based strip for use in concrete and masonry joints to compensate for contraction and expansion caused by temperature change. Butt Joints. To study the interface performance and failure mode of the epoxy bonding interface of prefabricated UHPC adhesive joints under passive constraints, the author designed the natural pouring (smooth) interface, rough grinding interface, groove interface, and keyway interface according to several commonly used interface types. They are as follows, 1. Oct 18, 2023 · Keyway in Construction: Definition. 5″ to 9. BoMetals 10 in. 1:2016 Residential Pavements. Keyway stands on metal legs which puts the keyway joint at half the pavement depth. x 1-1/2 in. SNAP-CAP Expansion Joint Cap . Kryton Crack Inducing Waterstop is fastened to a concrete form or shoring wall. PLASTIC JOINT MATERIALS SPEED-E-JOINT ®, DECK-O-JOINT ®, SNAP-CAP ®, KEYWAY TM CSI Code: 03 15 00 NO. expansion joints 4″ nomaflex $11. Available in 5 different sizes. Concrete Products Family-owned since 1958, Form-A-Key Products spent decades perfecting what would in 1981 become the Key-Loc® Joint, the most advanced Metal Keyway on the market. Nov 6, 2024 · Not all joints in concrete construction are unintended. This page is dedicated to all things waterstop, as used to seal joints in concrete construction. Features: 24 gauge thickness with 11/16" dowel knockouts every 6". Feel free to post any comments or questions and I will answer promptly. Butt Type Construction Joint Butt-type construction joints are While you could utilize a non-keyway joint in some applications and that is both common and recommended for thinner concrete slabs, a keyway joint is a superior option for slabs thicker than 250mm. For entrance and exit ramp joint details, see Keyway Splice Box cases are fitted with two easily removed poly - styrene end caps that prohibit concrete from entering the casing. Dayton Superior G33 Screed Key Joint is available in ten foot lengths in heights of 3-1/2", 4-1/2" and 5-1/2" for use in 4", 5" and 6" on-grade concrete floor slabs. 5380122] prevents costly delays associated with resetting key joint when floating concrete. Maximum spacing of free joints (m) An alternative joint for heavy wheel loads is to use 16-20mm dowels. Gulyas, R. If all bars are cut in a control joint then you would have to either rely on aggregate interlock of the cracked concrete surface or add greased dowels at the center of the wall to keep the wall sections aligned. C. Preformed Contraction Joint. PVC Keyway (Box of 50) SKU#: 505PKW218 Construction joints are formed using some sort of bulkhead, made of wood, steel, plastic, or precast concrete. May 1, 1997 · Typically a non-shrink grout is used to fill the keyway joint formed by two female-to-female shapes in the precast members. Champa. The joint creates a plane of weakness, forcing cracks to form in selected locations instead of random locations. S. 1445 Fairfax Ave. . SPEED-E-JOINT ®, DECK-O-JOINT ®, SNAP CAP ®, KEYWAY ™ SPEED-E-JOINT Preformed Contraction Joint SPEED-E-JOINT consists of two solid pieces that have been pre-assembled for easy handling and installation. One concrete slab is poured directly up to another concrete slab and the connection at the top of the two slabs is edged for aesthetics. Hey guys. Orders ship in 1-3 business days. In order to establish a plane of we a k n e s s , joints should have a min-imum depth of one-fourth the thickness of the slab. per lft. Will not split, chip or crack in any tion beyond the joint. Keyways are not recommended for thin slab (less than 250mm thick OCM, Inc's Metal Keyways are metal keyed joint formers that are used in concrete flatwork as a control/construction joint. These Keyways are used widely in street and highway work for longitudinal and transverse joint keying, as well as industrial and commercial form construction. Early-entry saws make a nice, clean cut for decorative concrete joints. KEYWAY comes in two sizes, small and large. It is furnished in 10’ lengths for 2 1/2” to 6” slabs. Overall, both joints experienced the expected “beam hinge mechanism” failure as designed. 1 "Min. KEY-DECK® Supports are manufactured from 14-gauge galvanized steel and are available in four sizes which adjust to accommodate 2 1/2” to 6” slabs. SPEED-E-JOINT offers an ideal solution to controlling cracks in concrete. We carry 3 1/2" up to 7 1/2" keyway joints in 10ft lengths. Expansion Joint Cap. OCM, Inc's Metal Keyways are metal keyed joint formers that are used in concrete flatwork as a control/construction joint. FEATURES. 49 (FOOT) Share. ] B. PLASTIC JOINT MATERIALS SPEED-E-JOINT®, DECK-O-JOINT®, SNAP-CAP®, KEYWAY™ NO. Sep 28, 2024 · Additionally, incorporating a keyway on the joint surface significantly enhances the interlock between the old and new concrete, thereby improving the shear resistance of the joint surface. Its tongue and groove shape performs load transfer at slab joints. Price Match Guarantee! $19. Note close proximity of the stakes to the joint. Can we use dowels or keyways for load transfer? A. Dietrich Metal Framing QUIKRETE Reflectix Sakrete Sika Trim-A-Slab Gray Black Brown Silver Multiple colors/finishes White Polyvinyl Polyethylene Steel Cellulose Polyolefin Rubber 5 4 1 3/16 Grey 50 foot 3/16 Black 500 foot 3/16 Walnut 500 foot 1/2 inch Walnut 25 foot 1/2inch Black 25 foot 3 Pack half inch Grey 4 foot Sticks 3 pack of 3/4 in. Easy way to mold a keyed tongue and groove construction joint in tilt-up Dayton Superior Control Joints and Keyway. After the concrete sets up, remove KEYWAY to leave the ideal tongue and groove type joint. Keyed Metal Concrete Joint Former. Nail or staple KEYWAY to the form or header prior to pouring concrete. Control Joints And Keyway Sort By: Featured Items Newest Items Best Selling A to Z Z to A By Review Price: Ascending Price: Descending Products Per Page: 8 12 16 20 40 100 What exactly is a concrete keyway? KEYWAY is a PVC tongue and groove joint that is lightweight and flexible. Construction joints in concrete footings or walls are places where the concrete pour can be stopped so that everything doesn't have to be poured at once. It strips quickly and can be reused or left in place. The detail also is expensive to build because you'll have to split the wood bulkhead used to form the keyway to let the wire mesh pass through it. Select your local branch for best pricing and delivery options. These instructions are compatible with two sided forms While you could utilize a non-keyway joint in some applications and that is both common and recommended for thinner concrete slabs, a keyway joint is a superior option for slabs thicker than 250mm. Joint an entire slab or strips can be poured at one time. Waterstops are usually made of rubber, plastics, or moldable plastic strips. BoMetals serves the masonry market with a complete line of Control Joint products, which are available in both PVC and Rubber compounds. near the end of the dowel (see Table 3 TJ2). Lockstop may be installed in a variety of locations along the joint, including a keyway of appropriate dimensions or directly to a plain flat concrete surface. 53 lbs. x 1/2 in. As the concrete ‘Cures‘, and shrinks, it breaks cleanly away from the ‘Key Joint’ to form a suitable joint surface. Jul 11, 2022 · #1 Butt-Type Construction Joint. 5 In x 10 Ft Pro-Key Keyway. 50 per box (50 pieces per box) polyethylene roll 6 mil – $130. When Screed Key Joint is used as a bulkhead for a construction joint, the knockout would be bent Aug 12, 2013 · PVC Tongue and Groove Joint Form KEYWAY is lightweight, flexible, and an easy way to mould a keyed tongue and groove construction joint. 50 per cubic yard The use of half-round keyways is, as far as we know, fairly new and not widespread. Key Joint should remain in place when bulkhead bracing is removed. the maximum joint spacing should be 15 feet. BoMetals 3. Finish the concrete flush to top of the metal joint. PVC Keyway (Box of 50) 2-1/8 in. Buildings 2023, 13, 2978 3 of 19 ratio, the keyway construction type, the interface mortar strength, and the shear span ratio on the shear performance of the keyway joint. SKU Concrete Keyway by David R. QuicKey™ removable cap yields straight void ready for sealing. 2009. Photographs (NB as these photos were taken the day before concrete was to be poured so Bar Chairs had not been installed ) Photo 1 – Contraction Joint CANZAC Plastic Keyway provides an economical means for forming keyed joints quickly and easily. Mar 28, 2022 · 2. Product Specifications: General: Construction Joints Control Joints QuicKey™ is a stay in place metal keyed control joint former for use in concrete flatwork as a control or construction joint. Keyways are designed to incre a s e the joint’s shear resistance. Keyway Joints Why do Keyways work for Pavement Centerline Joints? 8. R. , G. Plastic Expansion Joint Products KEYWAY. 2. both horizontal and vertical concrete projects. May 8, 2019 · Attach the keyway form to the edge of the concrete form with the narrow end facing inwards. 5 m). SPEED-E-JOINT consists of two solid pieces that have been pre-assembled for easy handling and installation. KEYWAY is resistant to impact and warping. 5 in. Joints in each lane should match those in adjoining l a n e s . Figure 7-8. Thick. It is a rigid preformed contraction joint that produces a straight-line crack on the surface of concrete slabs and locks into the aggregate just below the surface. Key-Loc® Joint System, a one-step interlocking joint-stake keyway system with ratchet top stakes, joint splices and optional stake clips. KEYWAY PVC Tongue and Groove Joint Form KEYWAY is lightweight, flexible, and an easy way to mold a keyed tongue and groove construction joint. To install, slide SNAP-CAP over the top of the Our PRO-SLOT TM, Dovetail Anchors, Expansion Board Cap, Chamfers, Hoppers and Trunk, Block Caps, Weep Tubes, Control Joint and Custom Splices All BoMetals products are available through a national network of distributors and warehouses. Learn more about our product offerings below. QK35 is used in concrete applications. section. Costly and time-consuming checker boarding is eliminated. PRO-KEY!" (US Patent Number 5380122) Metal Keyed Control Joint System For Concrete Slabs ULTRA FINE Joint Line. vRecognize why joints are needed in a concrete pavement. Phone: 415-282-8001 Call or text for orders or questions. Do not edge joint! Key-Loc® Joint is of 24 gauge galvanized steel Concrete construction joints are formed using a wood form, steel keyway, or plastic bulkhead. Reusable. The Butt-Type construction joint is very simple. This product is for use in concrete flatwork as a control or construction joint. : We are placing 4-inch-thick slabs. Table 2. Keyjoint can also be curved to suit a custom radius using a back cutting technique. 1995. It restricts joint movement and may cause random cracks at other locations. 5” slabs. Saw-cut contraction joints are ideal for decorative concrete because the joint is narrower and cleaner than a tooled joint. End cap seals are suitable for recycling once removed. We install the keyway by pressing in the 2x2 groove with a piece of form-a-drain after the footing has been topped over to height. Nail on keyway in metal and plastic, and recess key are additional options. Metal nail on keyway made of galvanized steel in 10′ 6″ lengths. For slab-to-slab joints, the keyway can be pressed into the joint while the concrete is still plastic. metal keyway joints (per 10’ section) $31. QuicKey is a stay in place metal keyed control joint former. Dowel bars lower deflection and stress in the concrete slab and reduce the potential for faulting, pumping, and corner breaks [32] [33] . Arrangement of longitudinal joints are to be as directed by the Engineer. x 1 in. Item pricing and delivery options may vary based on location. Jan 15, 2024 · Comparing the joints with ordinary concrete poured after the initial joint area and keyway, pouring RPC into the connection area and keyway was effective in preventing severe damage to the joint area, especially the keyway, under low-cycle repeated loads. BoMetals 5. Keyway Joints Longitudinal sawed joints are cut with a power concrete saw concurrently with the contraction joints. It serves as a connection point between two concrete pours. Adequately designed and Trapeze shaped plastic profile used as Feature/Grouting Strip (eliminates undesirable marks on off-shutter concrete when joining 2 pours of cast concrete at time intervals), or as Keyway for interlocking construction joints. 00. Today, Key-Loc® is still the superior Metal Keyway available. fqljw poa swuaq yazvj yfe xen nlpumi qpi aqmdqyfb udpt