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Concrete block foundation design4/5/2024 ![]() ![]() It depends on the circumstance and the availability of concrete and skilled workers. If the concrete truck has to travel farther than 90 minutes, a cinder block wall foundation would probably be the better choice. Constructing a poured wall is faster and more efficient, but it can be expensive if the cement plant is far away. Poured walls can be formed in any foundation design and can be adapted for last-minute changes. Poured walls tend to be the preferred choice of new construction builders. A poured wall doesn’t have joints like a block wall, so it is easier to waterproof. Poured walls have a better lateral strength, which means they can resist more pressure from the water and the soil outside. Poured concrete wall foundations are arguably stronger than cinder blocks. ![]() Water and weather wear down the mortar over time and cause leaks. While both foundation types can be completely waterproofed, block walls tend to have more leaks because of the grout lines. Block wall foundations are more prone to bowing and buckling, and repairs are costly if you have to rebuild the block wall. ![]() Plus, skilled masons are hard to come by. A good block wall does need skilled bricklayers translating into more labor costs. For this reason, a cinder block wall foundation is often the choice of engineers and architects. Meaning it can hold more weight on top of the foundation. ![]() While the poured wall wins for lateral strength, the cinder block wall built correctly beats a poured wall for compression strength. Nearly every house was built with a masonry foundation. What Are Cinder Block Foundations?īefore the 1970s, cinder block foundations were the norm. Each foundation type has its advantages and drawbacks. According to a survey by the Portland Cement Association, 72% of new homes with full basements are built with poured concrete wall systems, while concrete block walls hold 25% of the national market. Most builders, however, choose to use poured concrete walls for new homes. In the foundation industry, when a cinder block foundation is compared to a concrete block foundation, it’s difficult to determine which one is better, as both types of block foundations have various benefits. These vertical reinforcements are intended to be at the middle of the walls and they should be grouted solid.Everdry Waterproofing can provide homeowners in Milwaukee, WI with a cinder block foundation or a poured concrete foundation, depending on their unique needs. This recommendation will ensure that the grouting is properly consolidated.Horizontal reinforcements for cip concrete wall in most cases match the vertical reinforcements but not more than 24 inches on center.ĭue to difficulty of lifting each block over the vertical reinforcements for installation, the vertical bars are cut in 4 to 6 feet sticks to accomplish both the splice length and easy of labor. Per code as well as engineering recommendations, block walls are to be installed in 4 feet lifts. The horizontal reinforcements for block walls are usually spaced at 4 feet on center intended to be the same location as the bond beams. Cip concrete wall are reinforced vertically at 16 or 24 inches on center and very rare 12 inches on center. The biggest difference is the dowls that provide vertical reinforcements for the block wall which can be as close as 8 inches on center (every cell), 16 inches on center (every other cell), 32 inches on center or max at 48 inches on center. In fact the footings size and reinforcements are exactly the same for cip concrete foundation walls and CMU foundations. ![]()
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