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🕑 Reading time: 1 minute What is Lightweight Concrete? Lightweight concrete mixture is made with a lightweight coarse aggregate and sometimes a portion or entire fine aggregates may be lightweight instead of normal aggregates. Structural lightweight concrete has an in-place density (unit weight) on the order of 90 to 115 lb / ft³ (1440 to 1840 kg/m³). […]
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For the purposes of this article, we are considering only structural lightweight concrete: a mixture of portland cement, water, fine (sand) aggregates, and expanded clay, shale, or slate coarse aggregates. While normal-weight concrete mixes typically weigh 145 to 155 pcf, lightweight concrete typically weighs 110 to 115 pcf.
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If one uses a lightweight concrete weighing 90 pounds per cubic foot, a 1 1/2-inch thickness of this concrete weighs about 11 pounds. Concrete weighing 100 pounds per cubic foot and 1 1/2 inches thick weighs about 12.5 pounds. When using expanded shale, clay or slate lightweight concrete, one can do the job without specialty contractors because.
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What are the benefits of Gypcrete or lightweight concrete? Why did we choose to use it in this application? Check out this video explaining more of the benef.
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Structural Lightweight Concrete (SLWC) - This concrete has a density range of 800 kg/m³ (50 lb/ft³) to 1850 kg/m³ (115 lb/ft³). The compressive strength of this concrete ranges between 17 MPa (2,500 psi) to 34 MPa (5,000 psi) or higher. Builders use this lightweight concrete for structural applications. This concrete provides a balance.
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Industry professionals now recognize structural lightweight concrete as a strong, low-density mixture of Portland cement, water, and various combinations of normal weight aggregates and lightweight aggregates. In such concrete, lightweight aggregate produced from shale, clay, or slate is heated to approximately 2000 degrees F in a rotary kiln.
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🕑 Reading time: 1 minute Lightweight concrete floor provides more efficient strength-to-weight ratio in concrete floor systems when compared to other conventional concrete floor systems. The reduced quantity of concrete and steel reinforcement offsets the marginally higher cost of lightweight concrete floor systems. These floors are constructed for different purposes but the reduction of.
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Ultra-lightweight concrete, which is also known as super lightweight concrete or infra-lightweight concrete, is a state-of-the-art concrete in terms of density and insulation properties and classifies as concrete with a dry density lesser than 800 Kg/m 3. This density is the minimum limit for lightweight concrete according to the definition in.
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Lightweight concrete is a mixture made with lightweight coarse aggregates such as shale, clay, or slate, which give it its characteristic low density. Structural lightweight concrete has an in-place density of 90 to 115 lb/ft³, whereas the density of regular weight concrete ranges from 140 to 150 lb/ft³. This makes lightweight concrete ideal.
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concrete beams centered on 10 ft (3.0 m). The lightweight concrete floor system was selected to minimize the dead weight and to achieve the required 3 hour fire rating (Fig. 9.3 and Table 9.1). Figure 9.3. Bank of America, Charlotte, N.C. (from Holm and Bremner 1994, with permission of Edward Arnold Publishers, London).
Lightweight Concrete
Lightweight Concrete. Definition: concrete of substantially lower density than that made using aggregates of normal density; consists entirely of lightweight aggregate or a combination of lightweight aggregate and normal-density aggregate; its equilibrium densities are generally between 70 and 120 lb/ft3 (1120 and 1920 kg/m3).-.
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Lightweight Concrete. Resilient flooring may be acceptable over lightweight aggregate concretes having dry densities greater than 90 lbs per cubic foot and cellular concretes having plastic (wet) densities over l00 lbs per cubic foot (94 lbs dry weight), providing the surface is troweled to a smooth, even finish. This is a minimum requirement.
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air content. For UL fire rated lightweight concrete floor assemblies, entrained air contents are specified in the concrete property criteria. By definition, lightweight concrete is lighter than normalweight concrete. This is made possible by replacing heavy, ordinary aggregate with expanded shale, clay or slate lightweight aggregate, and by
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A: (Schundler) Light-weight concrete is used regularly in building as well as restoring flat roof decks. As part of a complete system, perlite concrete can be feathered out to re-angle or fill low spots, but must be protected from the elements, i.e. water, ice and ultraviolet rays.
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Structural lightweight concrete has strengths comparable to normal weight concrete, yet is typically 25% to 35% lighter. Structural lightweight concrete offers design flexibility and substantial cost savings by providing less dead load, improved seismic structural response, longer spans, better fire ratings, thinner sections, decreased story.