Many different industries have a solid foundation rooted in aggregates. Recognizing the extensive use of these aggregates motivates us to continuously create and improve our rock crushing equipment to help you increase production, decrease maintenance and improve the overall efficiency of your operation. When it comes to quality and efficiency, …
Abstract. Crushing strength of lightweight aggregates depends on the efficiency of production, type of binder used and size of the aggregate formed. Fly ash …
An aggregate crushing plant is a machine that processes a wide range of raw materials into high-quality aggregate, which is used in a variety of construction applications such as roads, buildings, and bridges. Designing an efficient crushing plant is critical to achieving maximum productivity, profitability, and sustainability in the …
In this study, lightweight aggregates (LWAs) were manufactured through cold-bonding pelletization of ground granulated blast furnace slag (G) and two types of fly ash with different finenesses ...
Artificial aggregates, such as fly ash lightweight aggregates, can be used as eco-friendly alternatives to natural aggregates. This work aims to investigate the effect of curing time on the hydration and material properties (voids, shrinkage, crushing strength and pH) of cold-bonded high-calcium fly ash–Portland cement lightweight aggregate.
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 study by pelletization process. The pellets consist of fly ash and furnace slag as binder substituted at 10%, 20% and 30% by the weight of fly ash.
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 strength and high performance concrete.
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Aggregate Crushing Value Test - Aggregate Crushing values is a relative resistance of aggregates to crushing under gradually applied compressive load.
Wet granulation is a potential method to develop artificial aggregates. In this paper, the granulation of recycled alkali-activated slag powders with different particle size (d50 ranging between 12.9–127.7 μm) distributions were investigated in order to find how these affect on the engineering properties of the artificial aggregates. Blast furnace slag …
This study investigated ed lightweight aggregate (FLWA) manufactured with hydrogen peroxide (HP) as a ing agent and using cold-bonded agglomeration process, a relatively low-polluting, energy efficient method of FLWA production. A number of the types of produced FLWA were surface treated to improve …
Coarse aggregate shall consist of naturally occurring materials such as gravel, or resulting from the crushing of parent rock, to include natural rock, slags, expanded clays and shales (lightweight aggregates) and other approved inert materials with similar characteristics, having hard, stronng, durable particles, conforming to the ...
Hence, in this research, we aimed to utilize high-volume LM in the manufacturing of blended Portland cement based lightweight artificial aggregates (LAAs) via the crushing technique, instead of using the pelletization method, together with silica fume (SF) as the supplementary cementitious material to improve the properties of LAAs …
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.
Lime mud (LM), a solid waste generated in the paper-making industry, was proposed to manufacture lightweight artificial aggregates (LAAs) via the crushing technique.
In this study, a novel bio-based cold-bonded lightweight aggregates (BCBLWAs) was developed with the use of converter steel slag and miscanthus powder …
Lightweight expanded clay aggregate (LECA) is a lightweight granular material, which can be used as an ideal backfilling geomaterial attributed to its porous …
This study aimed to enhance the crushing strength of artificial aggregates (AAs) made with 100 wt% solid wastes using polyvinyl alcohol (PVA) solution…
Cold bonded lightweight aggregate (LWA) was produced by adding 0%, 25% and 50% granulated blast furnace slag (GGBS) or rice husk ash (RHA) to fly ash (FA) by the pelletization process with cement additives. …
Slag often contains valuable metals that can still be recovered and utilized. When crushed and sized properly, slag can be sold and used as valuable material in many different ways, for example, as aggregates.
Fig. 3 shows the crushing strength test con- figuration and the mean strength values of the cold bonded slag aggregates produced in this study.
A wide range of concrete samples were prepared with varying water-cement ratio and density. The variation of density was achieved by using lightweight recycled coarse aggregate, and high density nickel slag aggregate as fine aggregate. The influences of water-cement ratio and density on the compressive strength were evaluated.
Mechanical strength properties of various 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 strength of 22.81 MPa and also exhibited lower water absorption of 13.01%.
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%.
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.
As reported, the carbonated steel slag-based artificial aggregates gained crushing values of 15.68–22.48% and bulk densities of 1230–1300 kg/m 3, and moreover, the concrete cast with the carbonated steel slag-based artificial aggregates showed very stable volume when cured in 80 °C water.
The crushing strength was done according to Chinese National Standards 14779 for lightweight aggregate (CNS 14779). In this test, LWA was placed in a steel cylinder with an internal diameter of 115 mm and a height of 145 mm.
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.
It can also be used for some recycling crushing applications. The ® CT Series jaw crusher is frequently used in mining to process precious metals and a wide spectrum of other minerals. It is also used to process hard rock, sand, concrete, asphalt and slag within the aggregates industry.
The crushing strength was done according to Chinese National Standards 14779 for lightweight aggregate (CNS 14779). In this test, LWA was placed in a steel cylinder …
Semantic Scholar extracted view of "Development of artificial one-part geopolymer lightweight aggregates by crushing technique" by Ling-Yu Xu et al.
Another study stated the utilization of ground granulated blast furnace slag (GGBS) in the production of aggregates produced superior strength, higher particle density, and crushing strength and ...
The fresh artificial aggregates were subjected to surface treatment using the same alkaline solution to enhance their characteristics. The mechanical properties of artificial aggregates confirmed their potential as a substitute for conventional aggregates by exhibiting crushing and impact values of 18.19–27.53% and 12.06–18.85%, …
This study prepared porous aggregates by mixing powdered steel slag, fly ash, and cement and carbonated them with CO 2 under high pressure conditions (0.2 MPa). The effect of carbonation on the performance of steel slag aggregate was studied using volume stability and crushing value.
This study aims to evaluate the cracking resistance and sustainability performance of alkali-activated slag (AAS) concretes incorporating pre-wetted lightweight aggregates (LWAs).
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 …
Aggregates are sand, gravel and crushed stone. Other materials like slag and recycled concrete can be considered aggregates as well. Aggregates can be put in place as washed stone, mixed with cement for pouring concrete for paving or with asphalt for paving.
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.
Cold bonded lightweight aggregate (LWA) was produced by adding 0%, 25% and 50% granulated blast furnace slag (GGBS) or rice husk ash (RHA) to fly ash (FA) by the pelletization process with cement additives. The results show that GGBS addition significantly improved the crushing strength of LWA, whereas there was no effective on …
Download Citation | Influence of burning temperature and cooling methods on strength of high carbon ferrochrome slag lightweight aggregate | High carbon ferrochrome slags and clay were used to ...
