2024723· Impact of lightweight clay aggregate with slag and biomedical waste ash on self-compacting concrete using machine learning approach …
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Furthermore, the microstructure investigation showed that no wall effect occurred in the ITZ of the AAC. The ITZ structure of the hardened AAC was also more compact and uniform than that of the OPC concrete. Keywords: lightweight aggregate; ambient curing; water–solid ratio; fly ash–slag alkali-activated concrete; mechanical properties
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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. They also offer significant environmental benefits such as the reuse or recycling of material and the avoidance of the need to quarry natural aggregates.
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d fly ash aggregate using cement, bentonite, furnace slag and metakaolin. Mechanical strength properties of variou fly ash aggregate were tested for crushing strength and impact strength. The investigation results suggested that the cold-bonded fly ash lightweight aggregate using slag showed a highest crushing st
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• By-product lightweight aggregates prepared by crushing, then sized by screens using granulated slag, organic cinders and coke from steel mill waste. • …
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201687· After collection of steel slag aggregate from a local steel manufacturing company, the steel slag aggregate was separated into lightweight (SL), heavyweight (SH), and mixed (SM) slag aggregates.
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2025423· Construction aggregate forms the backbone of every building project you see around you. These granular materials – including sand, …
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2024121· The majority of artificial aggregates are lightweight aggregates, with individual crushing strengths of less than 10 MPa. Aggregates used in sintering processes generally exhibit minimal water absorption and possess more strength up to 8 MPa.
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Learn about different aggregate types and their applications, and how they impact construction, landscaping, and other industries.
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201311· Crushing strength of lightweight aggregates depends on the efficiency of production, type of binder used and size of the aggregate formed. Fly ash based slag pellets …
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322· Cold bonded aggregate (CBA) produced principally with concrete slurry waste (CSW) and municipal solid waste incinerator bottom ash (MSWIBA) was used to produce lightweight concretes products – precast masonry units (LWCMU). The properties of the concrete products prepared with the 100% coarse CBA and different fractions of mixed fine CBA and …
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11· Developing geopolymer lightweight aggregates (GLAs) is explored in this study through crushing technique, which has a good prospect for massive industrial production.
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The lightest air-cooled slag is as heavy as the heaviest lightweight aggregate; it is closer to a normal weight, sand-and-gravel aggregate. A ir- cooled slag is mostly used for road metal, …
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1.5.1.6 Slag Slag aggregates are obtained by crushing of smelter slag or by special treatment of fire-liquid slag melt (molten slag aggregates). Currently there are many types of concrete that are developed and used in construction that include metallurgical slags both as a binding component and as fillers. Slag, generally classed as a synthetic aggregate (also called artificial …
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It was shown in Basa et al. [3] study that using sintered fly ash aggregate as a replacement for fine aggregates enhanced compressive strength, splitting tensile strength, and flexural strength. Cold bonded fly ash lightweight aggregate was employed to increase the per-meability of self-compacting concrete [4].
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3) Byproduct Lightweight Aggregates-prepared by crushing and sizing ed and granulated slag, cinders, and coke breeze. With the exception of processed slag, this group is becoming …
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83· The results showed that the ladle slag content of 30% cured in a humidity chamber produced the strongest granules, with a crushing strength of 127 N, which was 135% greater than a commercial lightweight aggregate. The granules generally had satisfactory density and water absorption with a higher ladle slag content.
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111· In this study, a novel bio-based cold-bonded lightweight aggregates (BCBLWAs) was developed with the use of converter steel slag and miscanthus powder via CO 2 curing. The aggregates using steel slag as a binder show relatively …
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When crushed and sized properly, slag can be sold and used as valuable material in many different ways, for example, as aggregates. However, since slag …
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Structural lightweight aggregate-Structural aggregate meeting the requirements of ASTM C 330 with bulk density less than 70 lb/ft3 (1120 kg/m3) for fine aggregate and less than 55 lb/ft3 (880 kg/m3) for coarse aggregate. This includes aggregates prepared by expanding, pelletizing, or sintering products such as blast-furnace slag, clay, fly ash, shale, or slate, and aggregates …
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CHAPTER 1—INTRODUCTION Hydraulic cement concrete is a cement and water paste in which aggregate particles are embedded. Aggregate is granular material such as sand, gravel, crushed stone, blast-furnace slag, and lightweight aggregates that usually occupies approxi-mately 60 to 75% of the volume of concrete.
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Industry leaders trust our superior aggregates for their most demanding projects. Our comprehensive range of crushed rock, stone, sand and gravel meets …
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The tested lightweight sintered aggregate is an ideal alternative for agloporite aggregate, granulated slag or pumice-stone slag, as one of the main components of lightweight structural and pervious concretes.
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2024212· This approach was presented by producing core–shell lightweight aggregates with low density and good mechanical properties from water treatment sludge and cement composite as a shell and expanded perlite as a core by the cold-bond method. Moreover, the effects of cement content on the aggregate properties were investigated.
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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. The expanded material has properties similar to natural aggregate, …
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313· The global aggregates market size was valued at USD 463.3 billion in 2019 and it also exhibits rapid growth. Natural aggregates mainly consist of manufactured crushed stone and sand created by the crushing of bedrock or naturally occurring unconsolidated sand and gravel. These aggregates are mainly used for various construction applications all over the …
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810· Further work focusing on the utilization of core-shell structured lightweight aggregate for the production of lightweight aggregate concrete, aiming to demonstrate the practical applications of the aggregate produced, has already been planned and initiated.
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201311· Crushing strength of lightweight aggregates depends on the efficiency of production, type of binder used and size of the aggregate formed. Fly ash based slag pellets were produced in the present
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When necessary, combine fine aggregate with natural aggregate, iron blast furnace slag, reverberatory furnace slag, or crushed concrete to produce Michigan Class 21AA, 21A, 22A, and 23A dense-graded aggregates in accordance with Table 902-1, Table 902-2, and this subsection.
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91· In order to further reduce the carbonation curing time and mechanical performance of steel slag-based artificial aggregates, they employed EDTA as an additive to improve the carbonation efficiency. After only 4 h of carbonation, the carbonated steel slag-based artificial aggregates obtained a crushing values of 7.99–8.80% [24].
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