Survey of past experience and stateofthe practice in the design. Expansion joints are connected either by welding to the pipes or vessel walls. Fabric expansion joints installation guide montero fye. These elements include expansion joints and metal bellows as well as metal hoses, automotive. Metal bellows expansion joints offer a cost effective alternative to other expansion devices while optimizing the productive life of a piping system.
Ejma was founded in 1955 to establish and maintain quality design and manufacturing standards. The authority on expansion joints the ejma standards are recognized throughout the world as the authority on the proper selection and application of metallic bellows type expansion joints for safe and reliable piping and vessel installation. Design and construction of highway pavement joint systems. Type of fabric expansion joint asiapacific supply co. Modular joints should only be considered where the anticipated total expansion movement exceeds 5 in. Regarding the type of structural expansion joint, the best expansion joint is to use a line of double columns to provide a complete separation in the building frame at the joints. The core of these expansion joints is very strong glass fabric, protected on one side by a ptfebased coating and on the inside by a ptfe foil. Ignoring expansion joints in pavement construction can lead to various problems. Bridge expansion joints the texas department of transportation. Contraction construction isolation and, if necessary, expansion each can occur in either the transverse or longitudinal directions. In all these cases, expansion joints can be utilized. The convoluted section of the expansion joint is designed to accommodate the movements due to. The following will apply to the design of modulartype expansion joints.
You can also find technical information as a pdf download. Bridge expansion joint guide april 2019 design sealed expansion joint sej bonded strip seal sejb no overlay minimum slab and overhang 1thickness 6. Bridge expansion joints are designed to allow for continuous traffic between structures while accommodating movement. Rubber expansion joints are mainly manufactured by manual wrapping of rubber sheets and fabric reinforced rubber sheets around a bellowsshaped product. This guidebook is an informative and inspirational tool for the reliable specification and selection of the correct type of metallic expansion joints. Maintenancefree, hard wearing and longlasting, no nonshrink seal required. The two leading causes of joint failure were improper installation and lack of.
The tenth edition standards combine the knowledge and experience. Fabric expansion joints can handle combined axial, lateral, angular and torsional movements with just one unit, the expansion joint locations should be carefully selected to keep the number of expansion joints in the system to a minimum and still absorb all of the duct movements. Association, the ral and the fluid sealing association. Technical notes on brick construction tn 18a accommodating expansion of brickwork pdf. This leaflet is a joint publication of the european sealing. Fluachem fluoropolymer is a glass fabric reinforced ptfe expansion joint for installation in chemically aggressive, medium tem perature applications. Self guiding design internal rings guide the movement of the expansion joint. Download expansion joint brochures and catalogues belman as. Ndot only uses modular expansion joints where large movements are anticipated. The vacuum ring is recommended when the expansion joint is used in negative pressure. The central component of each expansion joint is the metal bellows that, due to its shape and thin wall. Expansion joints trelleborg fluid handling solutions trelleborg ab.
It has a traffic grade silicone skin on the exposed face which provides resistance to gasoline and oil. Usl bridgecare provides a complete service to the civil engineering industry for bridge deck protection which includes the supply and installation of expansion joints and spray applied bridge deck waterproo. Should an expansion joint location have very large axial andor. We use your linkedin profile and activity data to personalize ads and to show you more relevant ads. Teguflex, the leading names of rubber expansion joints, offers solutions for your pipe system. An expansion joint or movement joint is an assembly designed to hold parts together while. Seismic, large and retrofit joints large expansion joints requiring an architectural finish willseal color coreseal h is a dense, closed cell foam for larger movement joints. A wide range of moulded standard bellows up to mm with a large variety of rubber linings. Holz rubber specializes in building custom and standard expansion joints. Open expansion joints and pourable joint seal were found to be the best performing joints based. Expansion joints custom and standard expansion joints. Migumax migua, expansion joints, sealing of movement. The expansion joint manufacturers association is an organization of established manufacturers of metal bellows type expansion joints.
963 1095 854 1255 501 437 403 647 545 558 1489 297 1255 1035 1073 314 766 1235 166 1389 1489 474 585 155 912 240 400 800 597 518 666 908 1284 1106 1347 1126 1426