Concrete Block Concrete Retaining Wall Footing Design

Expect to spend 20 36 hours building a 3x10 foot concrete block retaining wall.

Concrete block concrete retaining wall footing design.

The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line. 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. There is no need for a heavy foundation. 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.

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. Retaining walls must be stronger than freestanding walls. Despite the many references a single volume on retaining wall design for the professional practitioner and civil engineering student could not be found. The concrete design mix is normally 35 to 50kn mm2 in strength and there is no steel reinforcement in the blocks.

Determine the planned wall s height and width. Foundation all concrete block walls must rest on a sturdy foundation of poured concrete. A poured concrete footing for concrete block or brick walls should be at least twice as wide as the planned wall. Aug 17 2019 explore donald cawood pope s board concrete block retaining wall on pinterest.

The footing dimensions will largely be determined by the size of the wall. Concrete strengths less than this will reduce the design life of the blocks. Before you begin you ll need to design the layout and pour the footing. See more ideas about concrete block retaining wall retaining wall building a retaining wall.

This article shows you how to install one in a weekend. Numerous textbooks and technical papers on soil mechanics foundation engineering concrete design masonry design and in all sorts of related topics. Foundation soil preparation for concrete block retaining walls foundation soil under the basement should be excavated in accordance with drawings of the concrete block retaining wall design. The blocks need to be laid on firm ground on 100mm of concrete to give the wall a level and flat foundation.

These systems are easy to install durable reasonably priced and available in a variety of colors and textures. Insert rebar in the footing when you pour it.