Concrete Block Concrete Retaining Wall Footing Design
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Concrete block concrete retaining wall footing design. Determine the planned wall s height and width. The footing dimensions will largely be determined by the size of the wall. Design method this guidance document is primarily concerned with the design of retaining walls rather than free standing walls. The concrete design mix is normally 35 to 50kn mm2 in strength and there is no steel reinforcement in the blocks.
These systems are easy to install durable reasonably priced and available in a variety of colors and textures. However for even the most modest block structure to have enough rigidity to bear pressure and weight it needs proper footing. There is no need for a heavy foundation. The blocks need to be laid on firm ground on 100mm of concrete to give the wall a level and flat foundation.
Concrete strengths less than this will reduce the design life of the blocks. Expect to spend 20 36 hours building a 3x10 foot concrete block retaining wall. See more ideas about concrete block retaining wall retaining wall building a retaining wall. Despite the many references a single volume on retaining wall design for the professional practitioner and civil engineering student could not be found.
Concrete blocks are a common building material for a variety of outdoor projects such as retaining walls and out buildings like garages and tool sheds. The last home i built for my family had a giant poured concrete foundation but in the backyard i used concrete block to build a magical serpentine retaining wall that looks as good today as the. A poured concrete footing for concrete block or brick walls should be at least twice as wide as the planned wall. The footing should be at least as thick vertically as the wall s planned width.
Insert rebar in the footing when you pour it. Aug 17 2019 explore donald cawood pope s board concrete block retaining wall on pinterest. Concrete strength al ൯ne for an 10 thick wall with 5 10 and 2 5 clear to strength steel will only reduce the nominal moment capacity of the secti對on from 136 68 to 135 66 inch kips 尩 if the concrete strength decreased from 3 5 to 3 0 ksi. Before you begin you ll need to design the layout and pour the footing.
A concrete block retaining wall is the perfect solution to control erosion to eliminate a hard to mow slope to add a planting bed or to level an ideal patio area.