Ads
related to: expansion joint requirements in concreteebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
A expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials. They are commonly found between sections of buildings , bridges , sidewalks , railway tracks , piping systems , ships , and other structures.
The ECC patch was used as a replacement to the previously existent expansion joint that linked two deck slabs. Expansion joints, commonly used in bridges to allow for the seasonal expansion and contraction of the concrete decks, are an example of a ubiquitous construction practice that could eventually be eliminated through the use of bendable ...
(2) The thermal expansion coefficients of concrete and steel are so close (1.0 × 10 −5 to 1.5 × 10 −5 for concrete and 1.2 × 10 −5 for steel) that the thermal stress-induced damage to the bond between the two components can be prevented. (3) Concrete can protect the embedded steel from corrosion and high-temperature induced softening.
The standards are a combination of a variety of expansion joint manufacturers' knowledge and experience. [2] [3] The EJMA organization performs extensive technical research on a variety of topics concerning the design and manufacturing of expansion joints. [4] This knowledge contributes to providing new versions of the EJMA book of standards.
The omission of the expansion joint removes a significant maintenance and durability issue, as it serves as a point of ingress for road salts which allows the abutment, piers and deck soffit concrete to come under chloride attack that can cause degradation and eventual span failure. A 1989 British study showed that the majority of expansion ...
For dowel bar retrofit, dowels, bond breaker, expansion caps, dowel bar support chairs, foam core insert, caulking filler, non-shrink concrete backfill material and submittals are needed. The dowels need to be smooth, round, epoxy and made of bond breaker coated steel conforming to requirements.
Logo of Eurocode 2 An example of a concrete structure. In the Eurocode series of European standards (EN) related to construction, Eurocode 2: Design of concrete structures (abbreviated EN 1992 or, informally, EC 2) specifies technical rules for the design of concrete, reinforced concrete and prestressed concrete structures, using the limit state design philosophy.
Slip joints are sometimes found in tubular structures such as piping but are generally avoided for this application due to requirements for sealing against leakage, instead of using either a large loop that is allowed to flex or a semi-rigid bellow. Slip joints are used when the main problem is a large axial movement. [1]
Ads
related to: expansion joint requirements in concreteebay.com has been visited by 1M+ users in the past month