Similar to the typical ceramic brick but with improved acoustic properties. They have several chambers that are 39 cm long, with a width between 19, 24 or 29 cm. Hollow concrete block, the most common being 40 × 20 cm.Types of concrete blocks Dense aggregate blocksīlocks with densities between 1,700kg / m3 and 24 kg / m3. Renowned architects such as Frank Ghery, Mario Botta or Lloyd Wright have all used concrete masonry blocks in some of their projects. Furthermore, the temperature and moisture of these can be controlled in curing chambers in order to offer the appropriate functional, resistant, and aesthetic quality according to each project. This improvement in the quality of concrete blocks has increased its versatility, allowing additives such as colorants to obtain a different colored finish or to decide according to its use, what aggregates to use or the desired compaction. Nowadays, manufacturers have evolved and, have created associations or larger groups that ensure the quality and resistance of concrete blocks. Origin and introduction to the concrete blockĪt first, concrete blocks were manufactured by small factories and with poor quality control, which resulted in a very cheap but low-quality product. So, for example, for the construction of structural building walls, professionals often prefer to use of concrete blocks. Whilst cement blocks are lighter, concrete blocks are stronger. Cement blocks use fly ash aggregates, whereas concrete blocks use stone aggregates or fine crushed sand. The difference between cement blocks and concrete blocks lies in some of the materials used to fabricate them. Differences between concrete and cement blockīoth are used interchangeably and use a cement base with aggregates of between 65% and 75%. The installation of concrete blocks does require a skilled masonry contractor.Ĭoncrete block walls, in most applications, require additional labor and materials to become a finished wall assembly, such as strapping, insulation, vapor retardant, etc.As it is an easy material to manufacture, concrete blocks can usually be purchased from a nearby factory, which helps when using local labour.Ĭoncrete blocks also offer design flexibility, including its aesthetics for those projects that whish to leave it exposed. Specialized blocks are generally less available and can cost more. The project budget can often help determine the concrete block selection as well. Some blocks work better over doors and windows, some are lighter weight, and some are better at dampening sound. Knowing the application and the desired properties of the block help make the selection easier. The versatility of concrete blocks can also make it difficult to determine which type to use. The various shapes give the blocks special functionality depending on the application. Hollow concrete blocks come in many different shapes. The holes in the blocks allow electrical wiring and piping to be run through them, and rebar can also be placed in the holes to give the blocks even more strength. The holes make the blocks significantly lighter, but still give them strength where they need it. They typically have holes that make up 25% to 50% of their cross-sectional area. Hollow blocks are used in construction projects to build fences and walls. Using concrete in construction projects helps ensure longevity and durability. Fire and chemical exposure are also not a concern for concrete. Natural disasters and harsh weather conditions are not a problem for concrete. Concrete can also be cut into different shapes and sizes as needed.Ĭoncrete can take a beating. The ability to shape concrete and vary the strength of the concrete mix provides endless possibilities. Concrete also tends to increase in strength over time, meaning it produces buildings that are built to last.Ĭoncrete can be applied to many different applications, from roads to columns. When reinforced with rebar, concrete has incredible tensile strength as well. Under compression, concrete’s strength is unparalleled. Some of the properties that make concrete so popular are: With the ability to provide strength, durability, and versatility to any construction project, you’ll find concrete on just about any job site. Concrete is highly versatile and easy to make. It is estimated that the world produces more than 4.4 billion tons of concrete annually. The importance of concrete in construction cannot be overstated. While you may be familiar with many of them, some blocks like insulated concrete forms may surprise you with their abilities. They provide a versatile alternative to poured concrete and allow for many structures to be built quickly and efficiently. Modern concrete blocks come in many different shapes and serve many different purposes.
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