Retaining Wall Expansion Joint In Concrete Block Wall

Greased steel dowels are often cast horizontally into the wall to tie adjacent sections together.

Retaining wall expansion joint in concrete block wall. Details of this butt type con s t r uction joint are shown in figure 4. Or possibly where joining new to existing retaining walls also require weep holes at the base of the wall to prevent water pressure building up behind the wall. Vertical expansion joints are incorporated into the wall to account for expansion due to temperature changes. S t r uction joint restricts wall move ments and should be as strong as the wall without joints.

While these attributes are the primary basis for concrete masonry s. They may be vertical and horizontal. Other constru c tion joints coincide with or function as contraction or expansion joints. An information series from the national authority on concrete masonry technology ncma tek 10 2c 1 control joints for concrete masonry walls empirical method introduction concrete masonry is a popular construction material because its inherent attributes satisfy the diverse needs of both exterior and interior walls.

The inclusion of full panel height openings and or the inclusion of bed joint reinforcement can assist in lowering the risk of un planned cracking. Expansion joints are provided in every large structure which is subjected to high variation in temperature during its lifetime. The simplest vertical constru c t i o n joint is formed using a bulkhead b o a r d. Expansion joints should be located at intervals up to 90 feet.

This temperature variation causes expansion and contraction in the structure. The main board construction for retaining walls. Construction joints separate the work of the concrete being poured at different times. Exterior vertical wall expansion joint selection guide emseal watertight fire rated sound proof insulating precompressed foam sealant expansion joints.

Construction joints in retaining walls. Precast concrete cantilever wall expansion joints shall be in accordance with the standard specifications section 6 11 3 3. For cantilevered and gravity walls vertical expansion joint spacing shall be a maximum of 60 feet on centers. The provision of movement joints depend on the lengths of walls.

Expansion joints or isolation separate the sections of the walls so they can move independently and avoid pressure to move together.