Concrete Block Concrete Retaining Wall Footing Design

A poured concrete footing for concrete block or brick walls should be at least twice as wide as the planned wall. There is no need for a heavy foundation. The concrete design mix is normally 35 to 50kn mm2 in strength and there is no steel reinforcement in the blocks.

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Before you begin you ll need to design the layout and pour the footing.

Concrete block concrete retaining wall footing design.

Expect to spend 20 36 hours building a 3x10 foot concrete block retaining wall. 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. Insert rebar in the footing when you pour it. Concrete strengths less than this will reduce the design life of the blocks.

The footing dimensions will largely be determined by the size of the wall. 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. The footing should be at least as thick vertically as the wall s planned width.

Retaining walls must be stronger than freestanding walls. Reference guide for designing retaining walls using interlocking concrete blocks epcl 2017 rwrg 01 p01 june 2017 3 2. The blocks need to be laid on firm ground on 100mm of concrete to give the wall a level and flat foundation. 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.

Determine the planned wall s height and width. 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. 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.

This article shows you how to install one in a weekend. 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. Numerous textbooks and technical papers on soil mechanics foundation engineering concrete design masonry design and in all sorts of related topics. Design method this guidance document is primarily concerned with the design of retaining walls rather than free standing walls.

Aug 17 2019 explore donald cawood pope s board concrete block retaining wall on pinterest.

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