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Interlocking concrete block is a way to build a strong wall without mortar. Some such blocks are made with flanges that slip over the rear edge of the preceding course; others rely on a system of pins. With both types, you don. Concrete block is ideal for building walls to hold back the soil after you dig into a slope for a pathway, patio, or other project. Block retaining walls are generally the same as freestanding block walls -- described.
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Building a Concrete- block Retaining Wall - Building Masonry Walls. Intro. Concrete block is ideal for building walls to hold back the soil after you dig into a slope for a pathway, patio, or other project. Block retaining walls are generally the same as freestanding block walls - - described elsewhere on this site - - with a few important differences. A retaining wall must provide a way to release the water that builds up in the slope behind it. Without a pressure- relief system, the weight of the water in the soil would crack, or even buckle, the wall. Weep holes - - lengths of 3/4- inch pipe inserted along the top of the first course - - escort some of the water out.
The other part of the system is a plastic drainpipe covered with gravel. As water accumulates behind the wall, it percolates through the gravel into the drainpipe, which carries it off safely. Retaining walls must be stronger than freestanding walls.
Insert rebar in the footing when you pour it - - every three blocks, or at intervals specified by your local codes. As a last step, fill the cores around the rebar with mortar from the bottom to top. Prestart Checklist.
Time. 20 to 3. 6 hours for a 3x. Tools. Tape measure, brick set, small sledgehammer, chalk line, pencil, mason's trowel, level, mason's blocks, wheelbarrow, striking tool, story pole, shovel, wheelbarrow. Skills. Designing layout, excavating, mixing mortar, setting block. Prep. Lay out and pour footing. Materials. Concrete blocks, 2x.
How to Put a Door Into a Concrete Block Wall. Concrete blocks are often used to build basement and foundation walls in the home, though they can also be used in other locations as well. These blocks are durable and easy to.
Adhesive Wall Hooks. If the concrete block wall is painted and has a relatively smooth—not porous—finish, hanging pictures may be as simple as installing removable adhesive wall hooks. Damage-free adhesive. When it comes to basement windows, there's nothing more practical than glass block. Glass block is weather-tight and maintenance-free. It lets in the sun but keeps burglars out. And installing glass block basement windows is.