Concrete Retaining Wall Expansion Joint Detail

Backfill and drainage requirements shall be in accordance with.

Concrete retaining wall expansion joint detail.

Due to the above reasons and many others several shear keys are provided over the cross sections. Since we know the cohesion of the concrete and the surface area of the joint resisting force can be calculated. Typical control joint detail figure 16. Backfill and drainage.

True expansion joints in cast in place walls are not common. Vertical expansion joints are incorporated into the wall to account for expansion due to temperature changes. 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. Construction joints use construction joints when the c o n c r ete placement.

Especially when the retaining walls is longer it can not be concrete at once and by a single pour. Chapter 9 liquid retaining structures p. Typical expansion joint detail backfill and drainage requirements. Chapter 10 mass concrete p.

Expansion joints should be located at intervals up to 90 feet. Concrete control joint detail. Backfilling against reinforced concrete retaining walls shall not be permitted until the concrete has reached its 28 day strength. 8 2 types of joints in concrete walls 8 3 contraction joints 8 4 isolation or expansion joints 8 5 construction joints.

1 2 filler material. See clay and concrete masonry banding details tek 5 2a ref. Figure 12 for timber retaining walls and figure 13 for masonry and concrete retaining walls. Concrete expansion joint detail.

Expansion joints that allow completely independent movement between adjoining components are sometimes called isolation joints. Thus we can check the stability. Retaining walls and traffic barrier details for reinforced concrete retaining walls are. 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. 9 1 introduction 9 2 contraction joints 9 3 isolation or expansion joints 9 4 construction joints. 1 for more detailed information. 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. 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. Backfill and drainage. These joints may be filled with flexible joint fillers.