Types of Hollow Concrete Blocks: • Stretcher block • Corner block • Pillar block • Jamb block • Partition block • Lintel block • Frogged brick block • Bull nose block Concrete Stretcher Blocks Concrete stretcher blocks are used to join the corner in the masonry. The ratio of cement, sand and stone chips (metal) in the raw material mix determines the properties of hollow concrete blocks. A ratio of 1:3:6 (cement: sand: metal) confers higher strength, while a ratio of 1:5:6 can be employed for normal load-bearing construction. The water to cement ratio is usually 0:4:1. . Step 3: This is the core of the mold. This will create the hollow part of the block. Made with 2 x 8's and signboard panels. If you look closely, you can see the the ends are angled, so there is some draft on them, this to aid in the removal of the core from the block. Update: this will later turn out to be a mistake. If you're looking for lightweight concrete blocks, we work closely with leading manufacturers such as Plasmor, Forterra, and Cemex to provide a wide range of high-quality lightweight blocks, with our range of blocks coming in various dimensions, such as 440x100x215mm, 300x275x140mm, and 300x250x140mm to ensure that you can find the correct size. Some concrete contractors provide leaner slabs as a patio along the premises of a house. Medium-sized precast concrete slabs find application as false flooring for modern facilities. Experts recommend concrete slabs as pool decks. You can have your slab printed, stained or even textured to match the design and appearance of your exterior building. properties and their interface with the blocks [4,5]. block, prism and basic wall panel for this new type of load The responses of hollow concrete blocks under various bearing interlocking blocks has been first obtained both loading conditions including concentric and eccentric experimentally and numerically [18,19]. A few studies have.