Concrete Retaining Wall Expansion Joint Detail

Due to the above reasons and many others several shear keys are provided over the cross sections.

Concrete retaining wall expansion joint detail.

Vertical expansion joints are incorporated into the wall to account for expansion due to temperature changes. Construction joints use construction joints when the c o n c r ete placement. Figure 12 for timber retaining walls and figure 13 for masonry and concrete retaining walls. Chapter 9 liquid retaining structures p.

8 2 types of joints in concrete walls 8 3 contraction joints 8 4 isolation or expansion joints 8 5 construction joints. Expansion joints that allow completely independent movement between adjoining components are sometimes called isolation joints. Greased steel dowels are often cast horizontally into the wall to tie adjacent sections together. Concrete expansion joint detail.

Typical control joint detail figure 16. Control joints are typically required in exposed above grade concrete masonry walls where net aesthetic shrinkage cracking may detract from the appearance of the wall and to limit moisture or air infiltration. For cantilevered and gravity walls vertical expansion joint spacing shall be a maximum of 60 feet on. Chapter 10 mass concrete p.

Precast concrete cantilever wall expansion joints shall be in accordance with the standard specifications section 6 11 3 3. Typical expansion joint detail backfill and drainage requirements. If plans call for expansion joints verify the type of joint intended and execute the details carefully so the joint works pro p e r l y. These joints may be filled with flexible joint fillers.

1 the bridge office has. Ment should not pass through wall expansion or isolation joints. Expansion joints also work as contraction joints and may have smooth dowels to maintain the plane of the wall. Retaining walls and traffic barrier details for reinforced concrete retaining walls are.

Expansion joints should be located at intervals up to 90 feet. 1 for more detailed information. True expansion joints in cast in place walls are not common. 9 1 introduction 9 2 contraction joints 9 3 isolation or expansion joints 9 4 construction joints.

Backfill and drainage. Backfill and drainage. See clay and concrete masonry banding details tek 5 2a ref. Concrete control joint detail.

Backfill and drainage requirements shall be in accordance with. Construction joints separate adjacent placements of concrete to make large pours manageable. Backfilling against reinforced concrete retaining walls shall not be permitted until the concrete has reached its 28 day strength. Thus we can check the stability.