A direct alternative to primary aggregates, slag aggregates offer versatility and most importantly sustainable solutions to standard construction products. Steel aggregates have a high abrasion and crushing resistance for road applications: air cooled blast furnace products bond particularly well to cement and bitumous binders.
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When molten silicon manganese slag contacts with water, it is cooled down rapidly with much water vapor and to be a rock masses like as volcano rock. This porous rock may be used as a lightweight aggregate. In this study, we have tried to evaluate engineering properties of this material to use for construction fields. In the view point of engineering properties, such as low density and low
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The U.S. Department of Energy''s Office of Scientific and Technical Information
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lightweight slag aggregate (SL), heavyweight slag aggregate (SH), and mixed slag aggregate (SM). Different types of slag aggregates are shown in Figure 1. At the laboratory, large sized slag aggregates were broken into smaller sizes manually. The slag aggregate was tested for grading, unit weight, abrasion,
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crushing lightweight slag aggregate
3. Byproduct Lightweight Aggregates-prepared by crushing and sizing ed and granulated slag, cinders, and coke breeze. This group of lightweight materials, with the exception of slag, has become less significant and will not be discussed in this chapter. Other lightweight aggregates are beginning to appear in the marketplace.
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(4)Byproduct lightweight aggregates which are prepared by crushing and sizing ed and granulated slag, cinders, and coke breeze. The first three types of lightweight aggregates are produced from naturally occurring raw
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Most lightweight aggregate is produced from materials such as clay, shale, or slate. Blast furnace slag, natural pumice, vermiculite, and perlite can be used as substitutes, however. To produce lightweight aggregate, the raw material (excluding pumice) is expanded to about twice the original volume of the raw material.
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3. Artificial Aggregates. These aggregates are made from different waste materials. Artificial aggregate are sometimes manufactured for severing special work: – To make lightweight concrete: burned clays, artificial cinders, ed slag, expanded shale’s and slate, sintered fly ash exfoliated vermiculite is used.
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Pelletized slag looks similar to the clay products sold by light expanded clay aggregate suppliers, but it is a glassy material made from blast furnace slag, molded into small beads or pellets, and it is not as strong or lightweight as the products sold by lightweight expanded clay aggregate suppliers.
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Using such by-products for lightweight aggregate production is a feasible way in recycling of waste materials. Manufacturing artificial lightweight aggregates can be achieved by cold bonding, autoclaving or sintering procedures [1, 2, 5–7, 11, 19]. Some LWAs produced by crushing expanded clay, slates or shale have irregular shapes.
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Lightweight aggregates have been manufactured by sintering fly ash and crushing the product into suitable sizes. These aggregates possess unique characteristics that make them suitable for high
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1 Bruce Mason, "Lightweight Aggregates," from Industrial Minerals and Rocks, 6th ed., Society for Mining, Metallurgy, and Exploration, 1994, pp. 343-350. LIGHTWEIGHT AGGREGATE A. Commodity Summary Lightweight aggregates are minerals, natural rock materials, rock-like products, and byproducts of
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Lightweight geopolymer fly ash sand: an alternative from crushing units during mining and crushing of the stones for crushed sand causes air copper slag, iron
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Pelletized slag looks similar to the clay products sold by light expanded clay aggregate suppliers, but it is a glassy material made from blast furnace slag, molded into small beads or pellets, and it is not as strong or lightweight as the products sold by lightweight expanded clay aggregate suppliers.
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Lightweight Aggregate Pumice stone. It is also a suitable material to produce light weight concrete provided it is free from volcanic dust or clay etc. It gives concrete having density 800 to 1100 kg/cm 3 and has a high thermal insulation. Its strength is about 15 to 40 kg/cm 2. ed slag. ed slag is also used for preparing light weight
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Most lightweight aggregate is produced from materials such as clay, shale, or slate. Blast furnace slag, natural pumice, vermiculite, and perlite can be used as substitutes, however. To produce lightweight aggregate, the raw material (excluding pumice) is expanded to about twice the original volume of the raw material.
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The lightweight sintered aggregate characteristics and properties comply with light-weight aggregate standards (e.g. PN-EN 13055-1 Lightweight aggregates for concrete, mortar and grout, PN-EN 13055-2 Lightweight aggregates for bituminous mixtures and surface treatments and for unbound and bound applications). The tested lightweight
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Further, as these slag crushers are also lightweight, these are easy to transport and handle. These also do not require any expensive foundation support as required in other crushers. The different technical specifications these are made available in is on parameters of diameters, crushing capacity, input size, output size and others.
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Most lightweight aggregate is produced from materials such as clay, shale, or slate. Blast furnace slag, natural pumice, vermiculite, and perlite can be used as substitutes, however. To produce lightweight aggregate, the raw material (excluding pumice) is expanded to about twice the original volume of the raw material.
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Methods of making the foregoing aggregates and concretes are also included herein. Embodiments of the invention provide a slag manufactured aggregate suitable for inclusion in one or more of concrete, precast concrete, cellular concrete, or precast cellular concrete.
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Geopolymer lightweight aggregates (GLAs) were produced using one-part geopolymer technology and crushing method. • Geopolymer aggregate concrete (GAC) was produced using GLAs. • The effects of geopolymer mix proportions on the GLAs and lightweight GAC were investigated. • The GLA-mortar matrix interface in GAC was characterized in details
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3.1 Definition of Lightweight Aggregates Lightweight aggregate is the generic name of a group of aggregates having a relative density lower than normal density aggregates (natural sand, gravel, and crushed stone), sometimes and is referred to as low density aggregate. Structural lightweight aggregate-Structural aggregate meeting the requirements of
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The most commonly used lightweight aggregate comprises expanded clay, slag or shale for primary use in structural concrete and expanded perlite or vermiculite for primary use in insulating concrete. Mixtures of the two general types of aggregates are sometimes used to obtain a desired strength, bulk density of thermal conductivity.
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Two lightweight high-titanium heavy-slag concrete slabs (LPCSHTHSC) of two different sizes (150 mm × 150 mm × 150 mm and 150 mm × 150 mm × 300 mm) were prepared according to the proportions given in Table 1. After the curing for 7 days, 14 days, and 28 days, both compressive strength and antisplitting strength tests were performed. Test number.
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Two lightweight high-titanium heavy-slag concrete slabs (LPCSHTHSC) of two different sizes (150 mm × 150 mm × 150 mm and 150 mm × 150 mm × 300 mm) were prepared according to the proportions given in Table 1. After the curing for 7 days, 14 days, and 28 days, both compressive strength and antisplitting strength tests were performed. Test number.
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The production method of geopolymer lightweight aggregates (GLAs) is explored in this study through crushing technique, which has a good prospect for massive industrial production. Geopolymer cubes with the dimension of 100 mm × 100 mm × 100 mm were firstly produced using one-part geopolymer technology and then crushed into coarse aggregates
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The U.S. Department of Energy''s Office of Scientific and Technical Information
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lightweight slag aggregate (SL), heavyweight slag aggregate (SH), and mixed slag aggregate (SM). Different types of slag aggregates are shown in Figure 1. At the laboratory, large sized slag aggregates were broken into smaller sizes manually. The slag aggregate was tested for grading, unit weight, abrasion,
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703-10, Lightweight Aggregate. Fine aggregate produced from 1-1L. Specific gravities vary. 42.7546-73.7075 Region 00 Slag: 3-1S Cayuga: TMS International Auburn, NY (Nucor Steel) Slag
3. Mix design and strength of volcanic slag lightweight aggregate concrete According to code [4], lightweight aggregate concrete with CL20, density grade 1800 is designed. The design strength of lightweight aggregate concrete hollow block is MU10.0，and the hollow rate is 40%. The loose volume method is used to calculate sand rate in this design.
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aggregates—sand, gravel, crushed stone, and air-cooled blast-furnace slag—produce freshly mixed normal-weight concrete with a density (unit weight) of 2200 to 2400 kg/m. 3 (140 to 150 lb/ft. 3). Aggregates of expanded shale, clay, slate, and slag (Fig. 5-3) are used to produce struc-tural lightweight concrete with a freshly mixed density
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