Retaining Wall Construction Joint

The basic rules governing the building of a garden retaining walls are simple.
Retaining wall construction joint. Stagger the overlaps at least 4 in. 8 2 types of joints in concrete walls 8 3 contraction joints 8 4 isolation or expansion joints 8 5 construction joints. Large gaps can create a pathway for water and sediment. The counterfort wall may be.
The construction of a concrete masonry retaining wall shall conform to the dimensions and reinforcing steel requirements shown in figure 5 and table 1. Chapter 10 mass concrete p. When the dimension of the retaining walls is becoming significantly larger usually a construction joint with a shear key can not be provided. Joints in concrete walls.
The mix should be a standard c20. 9 1 introduction 9 2 contraction joints 9 3 isolation or expansion joints 9 4 construction joints. For information on how to measure and place the foundation see our foundations projects here. These are vertical or horizontal joints that are used between two successive pours of concrete keys are used to increase the shear resistance at the joint.
Retaining walls are structures used to provide stability for earth or other materials at their. Rules governing the construction of garden retaining walls. Construction joints use construction joints when the c o n c r ete placement cannot be done at one time. Concrete and formwork on the two counterforts at the joint.
O bars or dowels can be lapped above the footing in accordance with figure 9. Unplanned joints also occur on many jobs when equipment bre a k s down or concrete supply is interru p t ed. Construction joints in large retaining walls. Firstly the foundation you place should be a minimum of 150mm 6 inches thick.
6 3 control joints introduction where there is any conflict between linked concrete masonry walls whether they be walls forming part of a building structure retaining or garden walls often require control joints to be built in to counter the effects of drying shrinkage and other. Chapter 9 liquid retaining structures p. Cast concrete retaining walls may be constructed with any or all of the following joints. Providing one shear key would not be sufficient and there will be stress concentration along this joint.
A complete or monolithic con s t r uction joint.