Expansion joints should be located at intervals up to 90 feet.
Concrete retaining wall expansion joint detail.
Chapter 9 liquid retaining structures p.
Due to the above reasons and many others several shear keys are provided over the cross sections.
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.
Since we know the cohesion of the concrete and the surface area of the joint resisting force can be calculated.
Precast concrete cantilever wall expansion joints shall be in accordance with the standard specifications section 6 11 3 3.
Chapter 10 mass concrete p.
Backfilling against reinforced concrete retaining walls shall not be permitted until the concrete has reached its 28 day strength.
Concrete control joint detail.
Figure 12 for timber retaining walls and figure 13 for masonry and concrete retaining walls.
Retaining walls and traffic barrier details for reinforced concrete retaining walls are.
Construction joints use construction joints when the c o n c r ete placement.
True expansion joints in cast in place walls are not common.
See clay and concrete masonry banding details tek 5 2a ref.
Backfill and drainage requirements shall be in accordance with.
9 1 introduction 9 2 contraction joints 9 3 isolation or expansion joints 9 4 construction joints.
Ment should not pass through wall expansion or isolation joints.
Concrete expansion joint detail.
Especially when the retaining walls is longer it can not be concrete at once and by a single pour.
1 for more detailed information.
Greased steel dowels are often cast horizontally into the wall to tie adjacent sections together.
Expansion joints also work as contraction joints and may have smooth dowels to maintain the plane of the wall.
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.
Typical expansion joint detail backfill and drainage requirements.
Backfill and drainage.
1 the bridge office has.
Construction joints separate adjacent placements of concrete to make large pours manageable.
1 2 filler material.
Thus we can check the stability.
8 2 types of joints in concrete walls 8 3 contraction joints 8 4 isolation or expansion joints 8 5 construction joints.
Vertical expansion joints are incorporated into the wall to account for expansion due to temperature changes.
Typical control joint detail figure 16.
