Light-weighted blocks are made by replacing sand and gravel with expanded clay, shale or slate. Given below, some of the standard sizes of hollow concrete blocks. A concrete block is one of several precast concrete products used in construction. Concrete hollow block can be produced by concrete block making machine, the product is mainly used to fill the high-level framework of the building, because of its lightweight, sound insulation, good thermal insulation effect, the majority of users trust and favor.The raw materials are as bellows: Cement. These concrete blocks are hollow, which are later filled with concrete. The concrete block may have a solid or hollow core. Concrete blocks are used extensively for both load bearing and non- load bearing walls, externally and internally. Abbreviation is mostly used in categories:HollowMasonryBrickMachineBusiness, The list of abbreviations related toHCB - Hollow Concrete Blocks, Most relevant lists of abbreviations for HCB (Hollow Concrete Blocks). Technically it's called a concrete masonry unit as well. Hollow building tiles – 39 cm 19 cm 20 cm Countries that promote and encourage the usage of blocks lay great emphasis on their durability to withstand such natural hazards. Contractors elect to fill the hollow openings or voids in concrete blocks (sometimes referred to as grouting) after they are stacked or laid to achieve a stronger wall, one with properties nearly identical to a poured concrete wall. 1. Of the above types hollow concrete blocks are extensively used. NASA, 3.12 Width — The external dimension of a block at the bedding plane, measured at right angles to the length and height of the block. 1. powdery hydraulic inorganic cementitious material. A rich or strong mortar tends to make a wall too rigid thus localizing the effects of minor movements due to temperature and moisture variations resulting in cracking of the blocks. Construction speed is high when compare to conventional construction systems. Concrete hollow blocks are machine-made and unaffected by weather conditions unlike the red bricks. This is then poured into the desired size mold. These kinds of blocks have certain other advantages like thermally more insulated, better in terms of soundproofing, being easy to cast and requiring lesser amounts of mortar to bind to each other. It is sometimes called a concrete masonry … Standard size hollow concrete block – 39 cm 19 cm 30 cm b. Besides different sizes and designs can be given to the blocks. Some more concrete are then poured to fill the voices of the blocks. 6.9.2 Hollow concrete blocks shall be embedded with a mortar which is relatively weaker than the mix used for making blocks in order to avoid the formation of cracks. However, the particle size of the coarse aggregate should not exceed one third thickness of the thinnest web of the hollow blocks. Strength: Concrete blocks are known to be better in enduring earthquakes which are happening quite frequently these days, hurricanes and tornadoes. 1 Placing Hollow Concrete Blocks 3. It has hollow cores that can be filled with concrete onsite for additional reinforcement. They are available in solid and hollow forms. Introduction of Different Raw Materials. What is the abbreviation for Hollow concrete or cement block construction? Those that use cinders are called cinder blocks in Canada, the US and New Zealand, breeze blocks in the UK, hollow blocks in the Philippines and are also known as besser blocks or bricks in Australia. The nominal dimensions of concrete masonry block vary as follows: Length: 400 or 500 or 600mm; Width: 200 or 100mm Advantage of Hollow Concrete Blocks. Hollow Concrete blocks have a void area larger than twenty-five percent, they come in different shapes and sizes. Economical friendly and cheap rates. Concrete masonry blocks are generally made of cement, aggregate and water. Hollow Concrete Blocks is abbreviated as HCB. ACEA Allied Construction Employers Association. 4 DIMENSIONS AND TOLERANCES 4.1 Concrete … The walls are built by stacking concrete hollow blocks on top of one another and joined by cement-based mortar. Ordinary Portland cement is the cementing material used in cement concrete hollow blocks. You can … 4. High Durable. Concrete blocks are commonly referred to by their nominal sizes. Precast concrete block used to build walls. Portland cement and aggregate, usually sand and fine gravel for high-density blocks. In order to give a shaggy and vintage look to the blocks, some lumps are created on the outer surface. - Hollow concrete or cement block construction .BMP Bitmapped image format These blocks are available with various shapes and sizes. APS Automated Production Systems. Hollow block needs low maintenance. The latter has cavities that reduce weight, but also offer less resistance. Solid concrete blocks. Concrete hollow blocks are innovative building products that are used as substitutes for traditional bricks in building construction. "global warming" These blocks are industry manufactured and are made up of concrete and are hollow which in turn decreases the dead weight of the structure. Most concrete blocks have one or more hollow cavities, and their sides may be cast smooth or with a design. Concrete blocks are made from cast concrete, i.e. Each pour should be limited to 1m depth, and fall of the concrete during pour must also be similarly limited to … When a reinforced wall is wanted, hollow blocks may be used, reinforcing bar fitted, concrete poured into the wall, and the poured mix poker vibrated to release air pockets. They are made of lightweight concrete, which has a density in the range of 140 to 150 lb/ft3 (2240 to 2400 kg/m3). How is Concrete Hollow Blocks (construction) abbreviated? The Web's largest and most authoritative acronyms and abbreviations resource. Fig. Concrete blocks which contain core void area in excess of 25% of the gross area is defined as hollow concrete blocks. a. Firstly cement, stone chips, sand, etc are mixed in the ratio of 1:6 or 1:12. Postal codes: USA: 81657, Canada: T5A 0A7. MCAC Mason Contractors Association of California. The hollow block is also known as a hollow cement block or hollow concrete block as well. 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