Where greater structural strength is required, you can construct double-wythe walls, in which two courses of blocks are laid together. B12 Typical Thrust Block 45 to 67 1/2 Degree Conc. Detail 2.1 – Brick Veneer / Concrete Block Detail at Foundation .....2 Detail 2.2 - Brick Veneer / Concrete Block Detail at Slab Edge .....3 Detail 2.3 - Brick Veneer / Concrete Block Detail at … Block: Grade “N” ASTM C 90-03. It is common for the top of the foundation to be kept slightly below grade, so that the foundation will be hidden when the wall is finished. This can be done with a variety of waterproofing membrane products, or with a rubberized brush-on waterproofing material. The tool should form a slight indentation in the mortar joint. Position the first course of cement block into the mortar and tap the blocks downward slightly to embed them in the foundation mortar. Concrete block also comes in many shape configurations. Mortar joints. AutoCAD blocks of Construction and Architectural details. This section of Construction details includes: 2D blocks of architectural details, different construction, concrete, steel, metal structures, composite building details, composite floor slabs, steel structures, foundations, retaining and supporting walls, partition wall, floors details, floor slabs, expansion joints, joist floor slabs, flat slabs, stairs, ramps, sloped floor slabs, waffle slabs, special details, columns, pylons, beams. Of course, all generic details must be modified to the specifics of your project and approved by an architect or engineer prior to use for construction. For a building foundation or in a cold-weather climate requiring deep frost footings, excavation can be a major undertaking requiring earth-moving equipment. Concrete masonry is used to construct various foundation wall types, including full basement walls, crawlspace walls, stem walls and piers. Mix the appropriate mortar in a mortar box, then lay a 1-inch thick layer of mortar onto the foundation inside the outline. Then, use a masonry chisel and hammer to pound along the scored line until the block cleaves along the line. Exterior Walls, Interior Walls This provides an optimal amount of strength. For very tall walls, it's best to lay no more than six courses each day. Mix for concrete footing to be 1 part ce- ment to 2-1/2 parts sand to 3-1/2 parts gravel with a max. Concrete block. If you are building a small landscape wall in a warm-weather climate, this can involve simple hand-digging with a shovel. The concrete foundation needed to support a cement block wall is usually created by pouring concrete into a hollow form lining the sides of the excavation trench, but the concrete can also simply be poured into the trench—a common scenario for construction of a freestanding landscape wall.