As far as types of metal expansion joints, choose from simple bellows, controlled-flexing, universal style, pressure balanced, hinged, gimbaled, externally pressurized, rectangular, or flexible V-Loops constructed using flexible metal hose (see our Products for HVAC web section for additional information), In addition, we offer a complete assortment of pipe alignment guides and can assist with determining their required number and placement. The vulcanized rubber and fabric flanges of elastomeric expansion joints are integrated and therefore do not require additional gaskets which also eliminates the need for ongoing gasket maintenance checking. COFLEX CTM expansion joints are composed of a metal structure and a flexible yet durable central infill that can be ground and polished on-site. Tooled joints should be re-established with each successive pass of finishing operations. And help building product manufacturers to improve their content. QuicKey™ Metal Keyway Control Joint. And for any type of building (shopping centres, industrial floors, housing, stations, carparks, etc. Control joints control shrinkage cracks and some movement, but they aren't the same as expansion joints. Anchor base is stanadard.
Characteristics||Grooved or cut lines or joints in the screed or surface of a slab. This article emphases on need of expansion joint in concrete, characteristics of expansion joints, types of expansion joint and installation of expansion joints. For submittal sheets on 300 PSI units or dual units, contact Unisource. Product Code: Axial Metal Expansion Joints with Loose flanges. Pressure Connection joint with connection joint... Possible movement: 2 mm - 4 mm... Metal expansion joints for concrete slabs. profile width Description MicrAtec is a unique movement joint for all floors with hard finishes, from industrial floors to living rooms. Horizontal and vertical expansion joints typically range from 1/4″ to 1", with some reaching up to 20". Slip-Pak expansion joints are an excellent choice when a heavy-duty, long-life product is needed to take up large amounts of axial motion. Aluminium seismic floor expansion joint and central pan in galvanized steel specially designed for tile or stone integration (max height: 20 mm). However, machinery is available that makes it possible to pour and finish huge tracts of concrete in a single day. DECK-O-JOINT is a decorative expansion joint for use wherever concrete is placed.
Alternatively, they are cut 1/4 of the way through the set-up slab using a lightweight dry-cut concrete saw or heavier wet-cut concrete saw. In the table below, we compare the key points of control vs expansion joints. Limited lateral offset, angular rotation, and vibration isolation can also be accommodated.
Easy to cut … dimensionally stable … not sticky in summer or brittle in winter. ULTRA FINE profile at top edge eliminates surface voids, reduces spalling and produces architecturally pleasing joint. 129 Second St. Henderson, KY 42420. Expansion joint profiles for thin-bed installation • For different applications in outside and inside areas • Four specialized models available DURAFLEX expansion joint... Possible movement: 20 mm... as dip galvanized and steel type. Applications:||Loose Flanged Axial expansion joints are expansion joints that absorb mainly longitudinal movements - axially along a straight section of pipe. When compressed to half of its original thickness, it will recover to a minimum of 70% of its original thickness. Infrastructure / Concrete Expansion Joints Video. Metal keyway expansion joints concrete. Used and aligned in floors, walls, and ceilings, plus at the perimeters and corners to permit independent movement of structural components. Standard bellows are constructed of single ply or multi-ply Type 304 stainless steel and are suitable for most chloride free applications such as steam, condensate, oil, and chilled water.
Railway Expansion JointsUsually, expansion joints are not provided in the railways tracks, but if the track is laid on a bridge having expansion joint, providing a expansion joint in the track becomes mandatory to mitigate the expansion in base concrete structure. Control joints differ greatly from expansion joints. In the concrete block construction, the expansion joints are expressed as control joints. The only forces involved are the spring forces required to flex the loops. Concrete Joint Water Expanding Rubber Water Stop /Swelling Waterstop Strip 300% Expansion Bentonite Swellable Water Bar. Made of 2 aluminum side plates, the JDH 6. Special manufacturing techniques produce a continuous edge that assures the key joint has a positive lock with the tab on the stake. A substantial amount of space can be saved, and since no additional pipe extensions need to be installed in the Unisource V-Loops, standard models can be used, saving cost and reducing delivery time. CEMCO distributes our products throughout the United States, Canada, Mexico, and the Pacific Rim. Control Joint vs Expansion Joint: What Is the Difference. Arch Type Rubber Expansion Joints.
Bridge expansion joints keep different pours, slabs, or structures level where they meet to prevent trip hazards or traffic bumps. Because of its excellent recovery capability during wide temperature variations, SPONGE RUBBER EXPANSION JOINT is used around supporting pillars, drains, hydrants, and lamp and signposts, as well as in isolation applications or between materials having dissimilar coefficients of expansion. All Series FFB bellows are manufactured in accordance with the Expansion Joint Manufacturers Association (EJMA). Metal expansion joints for concrete5.org. They are not expansion cracks. The physical size of a basement floor, support points, temperature, and the loads it is expected to carry commonly determine if expansion joints are required.
Special Design Expansion Joints. Bellows squirm and buckling is controlled. The topside is covered with...... large open areas such as airports, shopping malls and hospitals etc. They are complementary to our VEDAFEU firestop solutions and our waterproofing products. Joint type and spacing will vary with each project according to the kind of structure, climatic conditions, and anticipated stresses in the concrete. ALS-M models are suitable for... This means that any cracks that occur before the concrete is sawed will render the sawed joint ineffective. Unisource V-Loops are extremely easy to design in nested configurations. The physical size of most residential pours isn't very large and is usually limited to what can be handled and poured by the crew doing the work. EXPANSION <—> CONTRACTION. They are typically cut into the concrete surface using a grooving tool during the screeding or finishing stage as the concrete sets up. Pipe alignment guides help to control the motion of pipe and expansion joints, insuring that the joint is subject only to the deflection for which it was designed. Expansion Joints for Piping Systems - Contact the Experts Today. CERAMAR PRESSURE RELIEF is a flexible foam joint filler composed of a unique, synthetic foam of isomeric polymers in a…. Small and medium movement absorption.
A vertical expansion joint filled with an elastomeric sealant is used in place of mortar to absorb compressive forces. All-metal floor expansion joint specially designed to withstand heavy loads: load handling equipment, lorries... These joints need to be carefully designed, located, and installed. DECK-O-JOINT resists acids, alkali, chlorine, etc. The time the concrete takes to set up is temperature and humidity sensitive, which affects when the cuts can be made. Proven field performance. The saw cut may be widened with an additional parallel cut, cleaned out, and then filled with waterproof compressible material to protect steel reinforcing inside the concrete. All-metal floor expansion joint, comprising the side angle sections and a central plate made of stainless steel or aluminium, able to take up expansion and contraction movements, as well as vertical shearing movements. Controlled-flexing joints are rated for full-vacuum, and temperatures from -20 to 800°F. In addition, contraction joints should be placed to produce panels that are as square as possible and never exceeding a length to width ratio of 1.
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