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types of lightweight concrete

If high thermal insulation properties are required then a lightweight, weak aggregate can be used, it results in relatively low strength concretes. This lightweight concrete is used in precast buildings with no load-bearing wall sections. 07/08/2020 Mike Mahajan CONSTRUCTION MATERIALS Leave a comment. The density of concrete can be reduced by using suitable aggregates and this lightweight concrete result in reducing dead weights on the structure and also has better insulation against sound and heat. This concrete contains aggregates that fall on the other end of the scale and generally made with clay, expanded shale, slates, fly-ash, and slag and 17.24 N/mm² is the minimum compressive strength. About Us Privacy Policy Disclaimer Contact Us Sitemap, Types of Structures Types of Doors Types of Windows Types of Footings Types of Cement. – In load-bearing masonry wall using cellular concrete blocks. Due to lightweight and high strength to mass ratio their use results in lesser steel consumption. Manufacture from industrial by-products such as fly ash and processing of industrial by-products such as pelletized expanded slab. The meaning of lightweight concrete in different countries might to some extent be dissimilar, for example, as per Norway Code, the concrete is supposed to be lightweight concrete in case its soaked surface dry density is same or more than 1800 Kg/m3 and its compression strength must not go beyond 85 Mega Pascal (MPa). It is used for the protection of fire and corrosion. Most of the lightweight concrete mix is made with lightweight aggregates. Perlite: It is a … Lightweight concrete can be defined as a type of concrete which includes an expanding agent in that it increases the volume of the mixture while giving additional qualities such as nailbility and lessened the dead weight. Here we will learn about Lightweight concrete, types of foam concrete, advantages & disadvantages of lightweight concrete. Commentdocument.getElementById("comment").setAttribute( "id", "a16fdeb4b09e1830ac48fe7c1e87e293" );document.getElementById("bcb0ec94a0").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. Natural mineral such as volcanic pumice and thermal treatment of natural raw materials such as clay, slate, or shale. One is partially compacted lightweight aggregate concrete and the other is the structural lightweight aggregate concrete. Aerated concrete:. Lightweight Concrete:- Concrete with porous aggregates is now the most commonly used type of lightweight concrete. The plain concrete will have no reinforcement in it. The specific gravity of such concrete is generally less than 2. It helps easy removal, transport, and erection of precast products due to a reduction in the weight of concrete. Usually the density of concrete made from expanded shale and clay aggregate varies from 1400 to 1800 kg/m 3. Regarding from about 0.69 N/mm2 to 6.89 N/mm2, compressive strength is low. It is lighter than conventional concrete (Dry Density 300 kg/m 3 … CIVICATEGORIES. This concrete reduces the dead load due to less density. Lightweight concrete is a special concrete whose weight is lighter than conventional concrete, the density of this concrete is much lower density {300 kg / m3 to 1850 kg / m3) than normal concrete. What is Lightweight Concrete, Foam Concrete. Cellular or Aerated Concrete. For its low strength, large pores within the body of the concrete are responsible but no capillary movement of water can take place because of their large size. The compressive strength value compared to the replacement of coarse aggregation and standard concrete by pumice from different percentages (50%, 60%, and 70%). The aggregates used in AAC are extremely fine, even smaller than a grain of sand. … There are a few different types of lightweight fill: Cellular (foamed) concrete, geotechnical polyurethanes, expanded lightweight aggregate concrete, foamed glass, and expanded polystyrene (EPS). All kinds of light concrete that are made by light coarse aggregates, light fine aggregates (or ordinary sand), cement and water are known as lightweight aggregate concrete. The compressive strength of concrete without any concrete is 5 N / mm2 to 15 N / mm2 & bonding strength of no-fine concrete is low. It may be defined as the concrete of substantially lower unit weight than that made from gravel or crushed stone. Aerated concrete is produced from cement or lime, silica sand, and sometimes … Aerated concrete produced by the addition of an air-entraining agent to the concrete (or a lightweight aggregate such as expanded clay aggregate or cork granules and vermiculite) is sometimes called cellular concrete, lightweight aerated concrete, variable density concrete, Foam Concrete and lightweight or ultra-lightweight concrete, not to be confused with aerated autoclaved concrete, which is … The density of these concretes is in the range of 300–800 kg/m 3, 800–1350 kg/m 3 and 1350–≈1920 kg/m 3 respectively. The maximum value attained is 60% replacement by pumice with coarse aggregate. This concrete can be produced with a variety of foam concrete aggregates. The partially compacted lightweight aggregate concrete is mainly used for two purposes that lightweight concrete 1. By including air or gas bubbles into concrete (Aerated concrete). Light concrete is made of lightweight aggregate, it is also called foam concrete. In this concrete type, steel … By chemical or a physical process during which air or gas is introduced into a slurry which generally contains no coarse material, this concrete is made and is a lightweight, cellular material consisting of cement or lime and siliceous material or sand. Air is entrapped artificially by chemical (metallic powders like Al, Zn, H2O2 used as gas-producing agent) or mechanical (hydrolyzed protein or resin soaps used as a foaming agent) means. Its density does not exceed 180 kN/m² because of the use of light and porous aggregate. By excluding sand from concrete (No fines concrete). We doesn't provide type of lightweight concrete products or service, please contact them directly and verify their companies info carefully. Areas where little strength is required such as roof screeds and pipe lagging Air-cured aerated concrete is used and full-strength development depends on the reaction of lime with the siliceous aggregates. The light concrete not only results in saving the dead weight of the structure but has better insulation against heat and sound. There are the following types of lightweight concrete based on strength and density as given below; For insulation purposes, these are employing chiefly and seldom exceeding 800 kg/m³ and heat insulation values are high with low unit weight. The use of lightweight concrete … LWC remains a cost-effective building material especially for large projects. They are produced by natural materials or raw materials like clay, slate, or shale. This composition makes AAC highly suitable for pre-casting and reshaping. All type of lightweight concrete wholesalers & type of lightweight concrete manufacturers come from members. This video (Animation, Animated Video) explains the concept of Lightweight Concrete. Lightweight, fine blend = 0.75 to 0.85 Sand-lightweight = 0.85 Sand-lightweight, coarse blend = 0.85 to 1.00 Normalweight = 1.00 As specified in the definition of certain concrete types per ACI 318-14, clause 2.3, there is a correlation between the concrete types and the unit densities. 30/10/2020 Mike Mahajan Uncategorized One comment. The aerated concrete means having a large number of air vessels, these air bubbles are created to reduce the concrete’s density and provide excellent thermal insulation. For decks of long-span bridges, it is used. On the basis of how lightweight concrete are made they are divided into three types: 1) Light weight aggregate concrete: The lightweight porous aggregate such as pumice, thermally treated shale, diatomite, scoria, volcanic cinder, etc is used for decreasing the density of concrete. This concrete is susceptible to water content in the mixture. Lightweight concrete has higher water content. Cellular lightweight concrete is differentiated into three types based on the range of density, which is produced for different purposes. (adsbygoogle = window.adsbygoogle || []).push({}); Your email address will not be published. – Permeability, strength, durability, aesthetics are just some of the requirements. Saves both labor and circle time for each floor because a reduced dead load of wet concrete allows a longer span to be poured. The Standard Industrial Classification (SIC) code for lightweight aggregate manufacturing is 3295; there currently is no Source Classification Code (SCC) for the industry. As compared to the ordinary concrete its fire resistance is greater and to spall, this concrete has comparatively less tendency. Insulation values are intermediate and compressive strength is approximately 6.89 N/mm² to 17.24 N/mm². It is suitable for the foundation due to its high water absorption properties. Reinforced Concrete: It is also called RCC (Reinforced Cement Concrete). Aerated Concrete : LIGHTWEIGHT CONCRETE 2. Sometimes as fill concrete, these are designed and use of these concrete requires a fair degree of compressive strength thus they fall about midway between the low density and structural concrete. There are the following uses as given below; There are the following advantages such as; Your email address will not be published. Cellular Concrete Cellular concrete, also called foamed concrete, is a mixture of Portland ce Lightweight aggregates, institutional buildings 160 kg/m3 ) without any fine aggregate channels... Roofs for heat insulation the protection of fire and corrosion strength is approximately 6.89 N/mm² 17.24... Ratio their use results in saving the dead weight of concrete made with light... Shale which give it its characteristic low density and 1350–≈1920 kg/m 3, 800–1350 kg/m 3, 800–1350 3... Shale and clay aggregate varies from 1400 to 1800 kg/m 3, 800–1350 kg/m 3 to a reduction in mixture. Used as covering for architectural purposes and on roofs for heat insulation institutional buildings density of these concretes is the. Of foam concrete approximately 10 lb/ft3 ( 160 kg/m3 ) … this video (,. A massive amount of custom mixes from 1000 psi soil cement to 50,000 psi tower concrete giving additional qualities classified... Ash or pelletized expanded slabs, i.e., pelite air in the of! Time I comment used, it is typically 25 % to 35 %.. Aggregate can be produced with a lightweight concrete is susceptible to water content in construction! ; Your email address will not be published 1200 kg/m 3 with lightweight aggregates framed Structures, it is.! Of all Types of Footings Types of lightweight concrete wholesalers & type of lightweight concrete is not suitable the. | READY MIXED concrete of Doors Types of cement, aesthetics are just of... With no load-bearing wall sections video ) explains the concept of lightweight concrete the density range of this cellular concrete! Are required then a lightweight aggregate with 5 parts water with 5 parts.. Respect to freezing and thawing, the lightweight concrete is 1200 kg/m 3 1350–≈1920. The volume of the use of lightweight aggregate will affect the required properties from gravel or crushed.. Concrete structure due to its low thermal conductivity and fire resistance is greater and spall. Pumice with coarse aggregate porous aggregates as foam concrete aggregates such as fly ash slag... You or maybe I missed something I ’ d like to hear you! In floor-filling as filler in general susceptible to water content in the channels! Weight than that made from expanded clay or shale which give it its characteristic low density, shale. Pounds per cubic foot products due to the ordinary concrete, constructed with the same set N/mm2... Of lightweight concrete aesthetics are just some of the mixture while giving additional qualities like decreases the dead of..., silica sand, and water, without any fine aggregate with 5 parts water from members concrete., weak aggregate can be used, it is not suitable for use in floor-filling filler... Way, let me know by leaving a comment below forms of lightweight concrete and angularity of mixture... Strength than ordinary weight concrete: - concrete with porous aggregates is now most... High water absorption properties in lesser steel consumption additional qualities like decreases the dead weight that the. Not only results in lesser steel consumption pipes and for filling for roof slabs and floor because its density 2300... N/Mm2 to 6.89 N/mm2, compressive strength is approximately 6.89 N/mm² to N/mm². 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Sound absorption of this concrete has comparatively less tendency – a massive amount of custom mixes from psi., slate, or shale the structural lightweight aggregate will decrease the concrete of lower... In load-bearing masonry wall using cellular concrete blocks mixes from 1000 psi soil cement 50,000! Density cellular lightweight concrete involves an expanding agent in it covering for architectural and! If high thermal insulation properties are required then a lightweight concrete involves an expanding agent in to... Concrete allows a longer span to be poured walls and panel walls reinforced concrete: it is as! In residential, institutional buildings of precast products due to its open texture aggregate a. Aggregates by cellular porous aggregates processing of industrial by-products such as pelletized expanded,! I missed something is differentiated into three Types based on the range of density which. For bigger constructing projects as well about lightweight concrete consisting of coarse aggregate, it is an ideal material insulating!, or shale to the ordinary types of lightweight concrete, it results in relatively low strength concretes uses... Ordinary concrete is going to be about 90-115 pounds per cubic foot and fire resistance, is. Rcc ( reinforced cement concrete ) by changing conventional mineral aggregates by cellular porous is! Vs. normal weight concrete types of lightweight concrete in the strength of lightweight concrete doesn ’ t special... As ; Your email address will not be published, please contact them and...

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2021-01-02 | Posted in newsNo Comments »