They are prepared as solid blocks from cement, water and materials like ground sand, pulverized fly ash together with additives to aerate and stabilize the air bubbles. These blocks are also termed as light-weight hollow blocks. These blocks are solid concrete blocks of different shapes specially made for exterior ground paving on sidewalks, parking lots, driveways, petrol pumps, industrial floors, etc.ĪAC blocks refer as Autoclaved Aerated Concrete Blocks. These blocks are used as load-bearing walls and have a density of not less than 1800 kg/m³. They should be manufactured for specific concrete strength of 4.0 and 5.0 N/mm² in 28 days. Grade C - These blocks are used for non-load bearing walls and have density more than 1000 kg/m³.Īll these blocks are available in decorative facings like fluted facing to provide artistic effects.Grade B - They have a density below 1500 kg/m¬³ and used for load-bearing walls.Grade A - They possess a minimum density of 1500 kg/m³ and are used for load-bearing walls.Open and Closed cavity-type hollow concrete blocks are classified into three grades: Classification of Concrete Blocks Hollow concrete blocks The whole process allows the complete shrinkage of the block to take place they are laid on the wall, which is very important for strong walls. They should be stacked with voids in the horizontal direction to facilitate easy drying, or they should be steam cured and dried. The cast block is then cured in a water tank or yard for at least 14 days (water need to be changed at least every 4 days).Īfter curing, the blocks are dried for 4 weeks before being used in masonry construction. Concrete mix for concrete blocks should not be richer than one part of the cement to six parts of the volume of combined aggregate.Ĭoncrete blocks can be handmade and also machine-made. Manufacturing of Concrete BlocksīIS recommends a fineness modulus of the combined aggregate between 3.6 to 4 and coarse aggregates used are of size 6 to 12 mm. Blocks can also be with cement and sand called cement-sand blocks or with cement and soil called soil-cement blocks which are of low strength and use for low-cost construction. Hollow blocks are specially made for loadbearing walls, which are useful in reducing a dead load of masonry in buildings. All these blocks are extensively used for compound walls and non-loadbearing walls. The cellular concrete blocks are generally referred to as lightweight aerated concrete blocks. If the percentage of the voids is more than 25%, then they are hollow blocks and blocks with voids less than 25% are only perforated blocks. They are available in three types namely solid, hollow and cellular, widely used for the construction of filler walls and boundary walls in RC framework.Ĭoncrete blocks are usually made in large sizes to make blockwork faster and consume less cement in joints than the brickwork. We also offer quick & easy delivery on most of our building supplies.Concrete blocks are nowadays replacing bricks in masonry construction, notably in many multi-storeyed buildings. Whether you are a DIY homeowner or a professional mason, construction company, or landscaping contractor, stop by our huge supply yard to find high quality blocks at great prices. Our huge selection of Basalite, Blocklite & Belgard concrete blocks are perfect for completing your next construction project. Homeowners & contractors turn to us when it comes to finding the best concrete blocks at the best prices. We offer high-quality concrete blocks for everything from commercial construction to landscaping projects, and even for DIY home improvement projects. In order to offer you the best collection of concrete blocks in the largest array of styles, colors and textures, we have partnered with three exceptional brands: Basalite, Blocklite and Belgard. Whether you are building a retaining wall, expanding your outdoor living space, or building a new home, you’ll find the best selection of split face block, fence block, scored block and precision block to complete the job. Here’s a look at the types of concrete blocks we offer along with the top name brands you will find here at Clovis Stone Masonry & Landscape Supply: Types of BlockĬustomers can find a vast selection of artisan quality concrete masonry units in a number of different styles, colors and textures including. Each type of block has a different character and appearance, giving homeowners & contractors a nearly endless selection of possibilities for completing truly unique projects. We offer a wide selection of concrete blocks in a variety of brands, styles, shapes, textures and sizes.
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