4 edition of Specification for foamed or expanded blastfurnace slag lightweight aggregate for concrete found in the catalog.
Specification for foamed or expanded blastfurnace slag lightweight aggregate for concrete
British Standards Institution.
|Statement||British Standards Institution. Part 2, Metric units.|
|The Physical Object|
Slag cement is commonly found in ready-mixed concrete, precast concrete, masonry, soil cement and high temperature resistant building products. While there are many applications and benefits of slag cement, a few are highlighted below and detailed information sheets are located here. Title: Blast Furnace Slag Aggregate in the Production of High-Performance Concrete Author(s): M. N. Haque, O. A. Kayyali, and B. M. Joynes Publication: Symposium Paper Volume: Issue: Appears on pages(s): Keywords: aggregates; blast furnace slag; compressive strength; shrinkage; silica fume; Materials Research Date: 6/1/ Abstract: The use of blast furnace slag aggregate (BFSA.
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Buy bs (): specification for foamed or expanded blastfurnace slag lightweight aggregate for concrete - metric units from sai global. Specification for foamed or expanded blastfurnace slag lightweight aggregate for concrete. Metric units: Status: Withdrawn, Superseded: Publication Date: 14 March Confirm Date: 15 June Withdrawn Date: 30 November Normative References(Required to achieve compliance to this standard) No other standards are normatively referenced.
Grading of coarse aggregate for structural concrete 2. Grading of coarse foamed or expanded blastfurnace slag 3. Grading of fine aggregate for structural concrete 4.
Limits for loss-on-ignition 5. Dimensions of cylindrical container. This specification covers lightweight aggregates intended for use in concrete masonry units when a prime consideration is to reduce the density of the units. This specification covers lightweight aggregates intended for use in structural concrete in which prime considerations are reducing the density while maintaining the compressive strength of the concrete.
Procedures covered in this specification are not intended for job control of concrete. A typical consensus specification for fine and coarse aggregate for concrete is ASTM C Lightweight aggregates used in structural lightweight concrete are typically expanded shale, clay or slate (ESCS) materials that have been fired in a rotary kiln to develop a porous structure.
Other products include expanded blast furnace slag. The rapid quenching ensures that none of the unstable compounds associated with air-cooled slag can form.
Foamed or expanded blastfurnace slag aggregate is specified for concrete in BS. Recently, production of foamed slag has tended to become superseded by pelletised slag.Clinker, cinders and breeze. Foamed concrete possesses characteristics such as high strength-to-weight ratio and low density.
Using foamed concrete reduces dead loads on the structure and foundation, contributes to energy. Manufacturing of lightweight aggregates (6) Manufactured lightweight aggregates are produced by expanding some raw materials in a rotary kiln, on a sintering grate, or by mixing them with water.
The most common lightweight aggregates are pumice, scoria, expanded shale, expanded clay, expanded slate, expanded perlite, expanded slag and.
In this revision the opportunity has been taken to include foamed or expanded blastfurnace slag previously covered by BSand clinker and furnace bottom ash aggregates previously covered by BSwhich are now withdrawn.
In order to classify materials as lightweight aggregate suitable for concrete mixes or masonry, maximum and minimum. blast-furnace slag—produce freshly mixed normal-weight concrete with a density (unit weight) of to kg/m. 3 ( to lb/ft. Aggregates of expanded shale, clay, slate, and slag Specification for foamed or expanded blastfurnace slag lightweight aggregate for concrete book.
) are used to produce struc-tural lightweight concrete with a freshly mixed density ranging from about to kg/m. 3 (90 to lb/ft. Expanded or Foamed Blast Furnace Slag If the molten slag is cooled and solidified by adding controlled quantities of water, air, or steam, the process of cooling and solidification can be accelerated, increasing the cellular nature of the slag and producing a lightweight expanded or foamed product.
expanded blast-furnace slag, foamed blast-furnace slag The lightweight cellular material obtained by controlled processing of molten blast-furnace slag with water, or with water and other agents such as steam or compressed air or both.
After cooling to 93°C (°F) or lower, the slag is transported to a plant for crushing and screening to a size appropriate for concrete use (Dobrowolski, ).
Air-cooled blast furnace slag has been extensively used as a construction aggregate. View chapter Purchase book. This study is a part of an on-going research studying the effect of blast furnace slag as a binder and filler replacement on the properties of fresh and hardened foam concrete.
A mix having the density of kg/m3 with a proportion of (1 cement:2 sand), W/C ratio ofa commercially available additive (SP-1), class F fly ash and a unprocessed blast furnace slag was used. This study focuses on the development of durable structural lightweight concrete (LWC) by incorporating expanded perlite aggregate (EPA) in the range of 0 to 20% by weight.
PELLETIZED LIGHTWEIGHT SLAG AGGREGATE MF J.J. Emery NATIOANL SLAG ASSOCIATION Page 6 TABLE 4 TYPICAL SAND-PELLETIZED LIGHTWEIGHT SLAG (SEMI-LIGHTWEIGHT) CONCRETE MIX DESIGNS NOTES: a.
Normal dose of water reducing agent, and air entraining agent for 7± 1% air content, used. 3, 4 Structural concrete is now available with a density range between 1, and 3, kg/m 3 as lightweight, normal aggregate and heavyweight concrete.
2 The sintered fly ash lightweight. Aggregate for lightweight concrete masonry units are normally sized minus 3/8 in. ( mm). This aggregate is usually the crushed variety because of improved machining characteristics and the zero slump concrete mix is drier than that for fresh structural concrete.
MSDS: Slag Page 3 of 6 Revised: 03/01/14 Section 4: FIRST AID MEASURES Eye Contact: Rinse eyes thoroughly with water for at least 15 minutes, including under lids, to remove all particles.
Seek medical attention for abrasions. Skin Contact: Wash with cool water and a pH neutral soap or a mild skin detergent. Seek medical. Expanded blast-furnace slag: The light- weight cellular material obtained by con- trolled processing of molten blast-furnace slag with water, or water and other agents, such as steam or compressed air or both.
(This is commonly used as lightweight aggregate and is not cementitious.) Portland cement. Durmus G, Simsek O, Dayi M () The effect of coarse recycled concrete aggregate on concrete properties.
J Fac Eng Archit Gazi Univ – Google Scholar Hamidah MS, Azmi I, Ruslan MRA, Kartini K () Optimisation of foamed concrete mix of. Lightweight blocks are manufactured from cement together with one of a variety of natural or man-made expanded aggregates including: granulated / foamed blast-furnace slag, expanded clay or shale, furnace bottom ash (FBA), pulverised fuel ash (PFA), or the less common pumice (a volcanic material).
ground granulated blast furnace (GGBF) slag was reported as early as GGBF slag has been used in concrete in Japan and Western Europe since the s. Concrete containing slag is estimated to comprise approximately 20 percent of the hydraulic cement produced in Europe.
Blast furnace slag is used predominately as base and concrete aggregate. slag may contain free lime (CaO or MgO) that may cause the slag to be expansive or cause differential movement when used as a base.
Steel is not recommended for use in rigid confined applications – such as concrete aggregate, base or fill under structures or floor slabs, or. Granulated Blast Furnace Slag in Portland Cement Concrete (PCC)-Wisconsin Highway Research Program WHRP Irene K. LaBarca, Ryan D.
Foley, Steven M. Cramer Department of Civil and Environmental Engineering University of Wisconsin-Madison January Expanded. This paper aims to study the fresh, thermal and mechanical properties of lightweight concrete (LWC) incorporating expanded polystyrene foam (EPS) beads as a lightweight aggregate (LWA).
Various mixtures of EPS foamed concrete are produced by partial replacing normal aggregates by 0%, 15%, 25%, 35% and 50% of EPS foam beads by volume.
In EPS foamed concrete, the. Purchase Concrete - 1st Edition. Print Book & E-Book. ISBNA density controlled cold fusion concrete cementitious spray applied fireproofing material including a mixture of water, one or more of silicon dioxide, expanded glass, vermiculite, bottom ash, perlite, expanded shale, or other lightweight aggregates of various diameter sizes ranging from about mm to about mm in diameter; anhydrous or hydrous sodium or potassium metasilicate; waste.
Lightweight aggregates used in structural lightweight concrete are typically expanded shale, clay or slate materials that have products such as air-cooled blast furnace slag are also used.
There are other classes of non-structural lightweight concretes with lower density made with other aggregate materials and Guide for Structural. Expanded clay and expanded slate, but also pumice slag, sintered ash and other aggregates are specified as aggregates for this concrete.
The grain-structure type is open. A third group is constituted by aerated concrete (gas-silicate concrete, foamed concrete), which can be employed structurally and for thermal insulation in the form of.
In some cases a portion or the entire fine aggregate may be a lightweight product. Lightweight aggregates used in structural lightweight concrete are typically expanded shale, clay or slate materials that have been fired in a rotary kiln to develop a porous structure. Other products such as air-cooled blast furnace slag are also used.
LIGHTWEIGHT AGGREGATES: A lightweight concrete usually is defined as one weighing approximately lbs., or less per cubic foot. Some of the concrete made from the lightest aggregates, such as expanded perlite or exfoliated vermiculite, can of course be made very much lighter than this but at sacrifice of strength.
The lightweight aggregate shall be an expanded shale, expanded blast furnace slag, expanded slate, or expanded clay product according to ASTM C The lightweight fine aggregate shall be Gradation FA 1, FA 2, FA 20, or FA 21, and the lightweight coarse aggregate shall.
Lightweight Aggregate CONCRETEPorous lightweight aggregate of low specific gravity is used in this as pumice, scoria and most of volcanic origin and the artificial aggregatesuch as expanded blast-furnace slag, vermiculite and clinker aggregateTypes of Lightweight ConcreteThe lightweight aggregate concrete can be divided into two.
Foam concrete, also known as Lightweight Cellular Concrete (LCC), Low Density Cellular Concrete (LDCC), and other terms is defined as a cement-based slurry, with a minimum of 20% (per volume) foam entrained into the plastic mortar. As mostly no coarse aggregate is used for production of foam concrete the correct term would be called mortar instead of concrete; it may be called "foamed cement.
Effect of Blast Furnace Slag Fine Aggregate for Freezing-and-Thawing Durability of Mortar and Concrete under Salt Existence Environment JFE TECHNICAL REPORT No. 23 (Mar. ) The concrete was cast in molds with dimensions of mm×mm× mm, removed from the molds, and steam-cured at 60˚C and water-cured for the speci-fied period.
Benefits of Blast Furnace Slag Blast furnace slag is a versatile, economical byproduct of production of iron. The four distinct methods of processing molten blast furnace slag - air cooled, expanded, pelletized and granulated - produce unique materials, although all varieties of blast furnace slag share basic advantages over other aggregates.
Foam concrete, also known as Lightweight Cellular Concrete (LCC), Low Density Cellular Concrete (LDCC), aircrete, foamed concrete, foamcrete, cellular lightweight concrete or reduced density concrete, is defined as a cement based slurry, with a minimum of 20% (per volume) foam entrained into the plastic mortar As mostly no coarse aggregate is.
• Lightweight aggregates used in structural lightweight concrete are typically expanded shale, clay or slate materials that have been fired in a rotary kiln to develop a porous structure.
Other products such as air-cooled blast furnace slag are also used. Classification of LWC. It is convenient to classify the various types of lightweight.Lightweight Concrete is particularly suitable for use where low density, good thermal insulation, or fire protection are required but not all of the available aggregate are equally suitable for any particular application.
It is best produced by entraining air in the cement concrete and can be obtained by any one of the following methods. 1. Concrete making with coarse aggregate and cement only.Nanoconcrete (also spelled nano concrete or nano-concrete) is a form of concrete that contains Portland cement particles that are no greater than μm and particles of silica no greater than μm, which fill voids that would otherwise occur in normal concrete, thereby substantially increasing the material's strength.
It is a product of high-energy mixing (HEM) of cement, sand and water.