(a) Aggregate crushing strength test configuration and (b) crushing …
Download scientific diagram | (a) Aggregate crushing strength test configuration and (b) crushing strength of artificial slag aggregates. from publication: Recycling ground granulated blast ...
1 Bruce Mason, Lightweight Aggregates, from …
Natural lightweight aggregate materials which are prepared by crushing and sizing natural rock materials, such as pumice, scoria, tuff, breccia, and vo lcanic cinders. ... Both expanded s lag and air-cooled slag are lightweight aggregate products produced as byproducts from iron and steel production. The process is described below. 2 ...
MACHINE CRUSHED COW BONES AS A PARTIAL …
Aggregate Crushing Value (ACV) for MCCB is 32% and that for fine sand is 17.89%, while Aggregate Impact Values ... lightweight aggregates are diatomite, pumice, volcanic cinders [17]. The primary aim of lightweight concrete is to ... [23] has also investigated the use of volcanic slag as coarse aggregate in the production of semi-lightweight ...
Upcycling of lime mud into lightweight artificial aggregates …
Development of artificial one-part geopolymer lightweight aggregates by crushing technique. Journal of Cleaner Production, Volume 315, 2021, Article 128200. ... Influence of slag powder on the mechanical and electrical properties of CECM. Construction and Building Materials, Volume 421, 2024, Article 135659.
Aggregates for Concrete
Chapter 5—Blast-furnace slag aggregates, p. E1-21 5.1—Blast-furnace slag 5.1.1—Definition 5.1.2—Properties 5.1.3—Availability Chapter 6—Lightweight aggregates, p. E1-21 6.1—Introduction to lightweight aggregates 6.2—Definition of lightweight-aggregate concrete 6.3—Low-density concretes and associated aggregates
Cold Bonded Fly Ash Lightweight Aggregate …
Res. J. Appl. Sci. Eng. Technol., 7(6): 1101-1106, 2014 1103 Fig. 2: Hot air oven curing for fly ash activate aggregate binders with the bulk density increasing with the
A study of the properties of foamed lightweight aggregate …
This study investigated foamed lightweight aggregate (FLWA) manufactured with hydrogen peroxide (HP) as a foaming agent and using cold-bonded agglomeration process, a relatively low-polluting, energy efficient method of FLWA production. ... Crushing strength properties of furnace slag – fly ash blended lightweight aggregate. ARPN J Eng Appl ...
Performance Evaluation of Alkali Activated Fly Ash …
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%.
Development of artificial one-part geopolymer lightweight aggregates by
Crushed natural rocks or stones are generally used as coarse aggregates for concrete production. According to different local geological conditions, various types of natural rocks (e.g., limestone (Nguyen and Castel, 2020), basalt (Shahrour and Allouzi, 2020), and gravel (Delsaute and Staquet, 2019)) have been used in the concrete industry.However, with …
Application of Steel Slag as an Aggregate in Concrete …
Typical morphology of steel slag [].(a) BOF steel slag.(b) EAF steel slag.(c) LF steel slag.BOF steel slag is the solid waste produced in the converter steelmaking process, and its discharge is approximately 100–150 kg per ton of BOF steel [20,21,22,23].BOF steel slag commonly has a grayish-white appearance and a vesicular nature, with many non-interconnected pores [].
Effect of Carbonation Treatment on the Properties of Steel Slag Aggregate
On the other hand, lightweight fly ash reduces the weight of concrete. ... When the carbonation temperature increases to 55 °C, the crushing value of the steel slag aggregate cured for 72 h decreases to 23%, which is less than 25%, and reaches the standard requirement for Grade II coarse aggregate. Because the prepared steel slag aggregate had ...
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 lower water absorption of 13.01%. The influence of binary blends of flyash and a binder was observed to be an important parameter for achieving a high strength aggregate.
The Basic Properties of Lightweight Artificial Aggregates …
The production of lightweight aggregate based on waste is an important step towards sustainable and ecological construction. It contributes to reducing the negative impact of the construction sector on the environment by reducing the consumption of natural raw materials and reducing waste of various origins, including rubble concrete. The physical and mechanical …
Effects of internal CO2 curing provided by biochar on the …
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. In order to further reduce the carbonation curing ...
Aggregates for Concrete
This Bulletin describes types of aggregates normally used in concrete, aggregate properties affecting performance of the concrete, tests used to measure aggregate properties, and …
Using of Fly Ash and Blast Furnace Slag in the …
In this study, fly ash and blast furnace slag were used in the manufacture of lightweight aggregates. The fly ash was provided from Yumurtalık-Sugozu Thermal Power Plant.
11.20 Lightweight Aggregate Manufacturing
The production of lightweight aggregate begins with mining or quarrying the raw material. The material is crushed with cone crushers, jaw crushers, hammermills, or pugmills and is …
Manufacture and performance of cold bonded lightweight aggregate …
Cold bonded lightweight aggregates were produced from slag, rice husk ash and fly ash. Without the additive of cement in manufacturing process. Alkaline activator solution was the wetting agent acting as coagulant. LWCs with unit weight in the range of 1836–2056 kg/m 3 were obtained. LWCs with 28-day compressive strength in the 14.8–38.1 MPa range were produced.
Slag crushing
The functionality enables continuous crushing and protects the crusher from extreme overloads. When automated, the crusher setting is returned back to its original one when the uncrushable object has dropped out of the cavity.
ARPN :: Journal of Engineering and Applied Sciences (JEAS)
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 …
Properties of lightweight aggregates produced with cold …
Pelletization is a worldwide process used in producing artificial aggregates although its usage is not common in Turkey. 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 (Fly ash A and B). Ordinary Portland cement (PC) …
Properties of Lightweight Aggregates Made with Cold …
Beneficiation of waste materials such as fly ash, ground granulated blast furnace slag etc. for the manufacture of artificial lightweight aggregate has a promising future due to the increasing ...
Utilization of Steel Slag in Concrete as Coarse Aggregate
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.
1 Bruce Mason, Lightweight Aggregates, from Industrial …
Byproduct lightweight aggregates which are prepared by crushing and sizing foamed and granulated slag, cinders, and coke breeze. The first three types of lightweight aggregates are …
Properties of lightweight aggregates produced …
The hardened aggregates were tested for specific gravity, water absorption, and crushing strength. Thereafter, lightweight concretes (LWCs) were produced with water to cement ratio of 0.50 and a ...
11.20 Lightweight Aggregate Manufacturing
11.20 Lightweight Aggregate Manufacturing ... furnace slag, natural pumice, vermiculite, and perlite can be used as substitutes, however. To produce ... which is emitted by the rotary kilns, clinker coolers, and crushing, screening, and material transfer operations. Pollutants emitted as a result of combustion in the rotary kilns include
Approach to design sustainable alkali-activated slag recycled aggregate …
Approach to design sustainable alkali-activated slag recycled aggregate concrete: Mechanical and microstructural characterization ... Crushing value: 20 %: 20 %-< 30 % [88] Water absorption: 3.35 %: 3.84 %: 0.9 % < 10 % [89] ... Their study was limited to the use of lightweight sintered fly ash aggregates, ...
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%.
Selective crushing, enrichment by friction properties and
The paper suggests the use of methods of enrichment by friction properties, selective crushing, and hydrophobization to increase slag aggregate resistance to freezing …
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 …