(a) Aggregate crushing strength test configuration and (b) crushing
Moreover, crushing strength test was performed as per BS 812, part110 [25]. Practically, individual pellets were placed between two parallel plates and loaded diametrically until failure occurred ...
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CONTENTS
aggregates, lightweight aggregates and ultra-lightweight aggregates. The majority of aggregates used to make concrete fall into normal-weight and lightweight classes. Normal-weight aggregates are sands (fine aggregate), natural gravels and hard rock, crushed or uncrushed (in the case of natural aggregates). There are also certain
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Slag aggregates
At Tarmac we have over 40 years experience of processing slag into premium and more sustainable construction materials. 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 …
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STEEL SLAG AS A POTENTIAL REPLACEMENT MATERIAL FOR COARSE AND …
Compared to the lightweight slag aggregate, heavyweight slag aggregate gives relatively lower absorption capacity. The abrasion value of lightweight slag aggregate was 45.9% and the same for brick aggregate was 38.3%. It is understood that the lightweight slag aggregate is relatively softer than the brick aggregate investigated in this study.
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(a) Aggregate crushing strength test configuration and …
Similarly, Öz et al. [48] reported that cold bonded artificial slag aggregates had the ability to react with Ca(OH) 2 in self-compacting concrete due to the dissolved powder materials of the ...
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Mechanical, Physico-Chemical and Morphological …
Steel slag aggregate concrete has also inclined to decrease the water absorption characteristics and porosity after 28 days, ... and aspect ratio of the lightweight aggregate significantly affected mechanical strength ... The mechanical properties show a remarkably better performance of EOF steel slag, in terms of crushing, impact, abrasion ...
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How to do high-quality sand and gravel aggregate processing?
Six basic precautions for making high-quality sand and gravel aggregates. 1. Select qualified host rock. (1) The quality of the parent rock directly affects the quality of the machine-made sand. Therefore, the qualified parent rock should be selected first before the production of machine-made sand and gravel aggregate.
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Recent advances in artificial aggregate production
Most AAs are categorized as lightweight aggregate and their individual crushing strength is less than 10 MPa. Sintered aggregate usually exhibits low water …
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Ferrochrome Slag Feasibility as a Raw Material in
The liquid phase formation above 1200 °C limits the FeCr slag use as aggregate in refractory castables, thus the maximum service temperature for these novel slag-based refractory materials is 1200 °C. Cold crushing strength value of FeCr slag-containing specimens was as high as 91 MPa.
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Preparation and Characterization of the Functional Properties of …
The bulk crushing strength of the non-burning aggregate cylinder of SM slag first increases and then decreases with the amount of liquid activator because the higher alkaline activator content yields an alkaline environment and silicon-oxygen tetrahedral groups in the aggregate, leading to the depolymerization of many vitreous …
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Using of Fly Ash and Blast Furnace Slag in the Production of
Industrial residues, such as coal ash and blast furnace slag [4], and aggregates of recycled materials, such as bricks and crushed glass [5], are interesting alternatives to obtain lightweight ...
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Synthesis of artificial aggregates and their impact on
Waste materials such as ash, sludge, and slag are the most suitable options for producing lightweight aggregates. ... Aggregate crushing resistance/TPFV increases with curing age and binder content due to the development of ... (2021) Development of artificial one-part geopolymer lightweight aggregates by crushing technique. J Clean …
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Study on the crushing strength improvement of artificial aggregates
The crushing strength result of an individual aggregate was calculated according to Eq. (1), and the average value of 12 aggregates was reported. (1) σ = 2.8 P π d 2 where σ is the crushing strength of the aggregate (MPa), P is the failure load (N), and d is the distance between the loading points measured by three axials (mm).
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(PDF) Steel Slag Aggregate For Asphalt Pavement
Lightweight Aggregate* 38 43 ... impact and crushing values, low fragmentation, and high CBR. ... Expressway Asphalt Pavement Using Steel Slag Aggregate, SEAISI Q. J. (2015).
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Steel Slag Aggregate
Slag use in asphalt paving. George C. Wang, in The Utilization of Slag in Civil Infrastructure Construction, 2016 10.5.3 Reclaimed asphalt pavement containing slag aggregate. Recent research found that some steel slag aggregates in RAP, with 92% steel slag aggregates, showed considerably high expansion potential, up to 6.2% swell. The overall RAP gave …
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11.20 Lightweight Aggregate Manufacturing
11.20.1 Process Description1,2. Lightweight aggregate is a type of coarse aggregate that is used in the production of lightweight concrete products such as concrete block, structural concrete, and pavement. The Standard Industrial Classification (SIC) code for lightweight aggregate manufacturing is 3295; there currently is no Source ...
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What is Blast Furnace Slag and How to Process It?
The expanded slag ball is a porous lightweight slag formed by cooling the slag with high cooling water. The production methods include spray method, trench method and roller method. It can be used to make lightweight aggregate, inner wall panels, floors, etc. it can also be used in load-bearing structures. Blast furnace slag can also be used to ...
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Microstructure and Physical Properties of Lightweight Aggregates
By using blast furnace slag or metakaolin as co-binder, the aggregate crushing strength increases and aggregate porosity decreases. The utilization of …
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Performance Evaluation of Alkali Activated Fly Ash Lightweight Aggregates
The investigation results suggested that the cold-bonded fly ash lightweight aggregate using slag showed a highest crushing strength of 22.81 MPa and also exhibited a lower water absorption of 13.01%.
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Lecture 4. Aggregates
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 vermiculite. 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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A 14-year study on ceramic waste slag-based lightweight …
Traditional LWAC with furnace slag lightweight aggregate (FLWA) was designed as a contrast. Properties of 14-year LWAC such as compressive strength, …
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Analysis of Life Cycle Environmental Impact of Recycled Aggregate …
Technology is currently under development to utilize recycled aggregate, obtained by crushing waste concrete, as a high-value-add material with applications such as aggregate for road construction and concrete. ... Due to the use of LNG and coal energy during the manufacturing of lightweight aggregate and slag aggregate, matters that impact ...
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Properties of silicon manganese slag as an aggregate for
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 …
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A 14-year study on ceramic waste slag-based lightweight aggregate
The strength of three lightweight aggregate cannot be directly tested but expressed by crushing index as per GB/T 17431 [19], 5.9 MPa for CLWA, 4.6 MPa for FLWA and 2.1 MPa for ultralight FLWA. CLWA shows higher strength than FLWA, and the strength of ultralight FLWA is the smallest.
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Development of artificial one-part geopolymer lightweight aggregates …
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 …
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Steel Slag—A Strong and Sustainable Substitute for Conventional
From their experimental results it was evident that the crushing strength of the HPC containing steel slag and crystallized steel slag aggregates were 18–34% and 11–21% greater than of the HPC containing limestone aggregate. 31–35% and 11–18% increase in modulus of rupture was reported for the HPC containing steel slag and …
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Materials | Free Full-Text | Mechanical, Physico-Chemical and
This research tests energy optimised furnace (EOF) steel slag as substitution for natural coarse aggregate in concrete. Steel slag's usefulness as a substitute for natural coarse aggregate in concrete is the primary goal of this research. According to IS:2386-1963, the characterization of EOF steel slag, as coarse, is done by examining the shape …
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Use of steel slag as sustainable construction materials: A review …
The expansion rate and crushing value of the IWAAs decreased by 82.21% and 41.58%, respectively, whilst the anti-rutting properties, the moisture damage resistance, and the skid resistance rose by ...
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Non-destructive prediction of strength of geopolymer
The variation in density was attained by partial replacement of normal weight fine and coarse aggregates by denser copper slag and lightweight recycled aggregates, respectively. ... Lee T (2022) Correlation analysis of ultrasonic pulse velocity and mechanical properties of normal aggregate and lightweight aggregate concretes in 30–60 MPa ...
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Utilization of Steel Slag in Concrete as Coarse Aggregate
The effects of replacing crushed brick aggregate by IFS aggregate on properties of concrete were studied, for varying mix design parameters including W/C ratio (0.45 and 0.50), cement content (340 ...
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