on the bulk use of steel slag–y ash, and particularly on the application of a stabilized steel slag–y ash composite as the DLC layer in rigid pavement construction. This study …
The article investigates how flue gas desulfurization gypsum (FGDG) modifies the properties of alkali-activated materials (AAMs) based on fly ash and ground granulated blast-furnace slag (GGBS). It reveals the role of FGDG in enhancing the strength, durability and microstructure of AAMs. The article also discusses the potential of FGDG as a green …
To decrease the cement and SF content of RPC by using ultra-fine fly ash (UFFA) and steel slag powder (SS), the effect of these mineral admixtures on compressive strength of RPC were investigated. The experimental results indicate that the utilization of UFFA and SS in RPC is feasible and has prominent mechanical performance. The …
Two mixtures were tested, LWAFA: made of fly ash and LWA-SLFA made of a 50% mixture of slag milled at particle size < 300μm and fly ash. The thermal treatment for …
Supplementary cementitious materials (SCMs), such as fly ash (FA), ground granulated blast-furnace slag (GGBS) [33], silica fume (SF), metakaolin [34], limestone powder [35], steel slag powder [36 ...
2.2.. SynthesisThe synthesis of geopolymer bodies was performed by following the method based on the fly ash/slag/K-silicate/H 2 O system reacting without thermal activation. Fly ash was mixed with blast furnace slag from a steel plant in the Czech Republic (Table 1), water and an activator solution.This consists of a potassium …
The production and application of steel slag and fly ash composite portland cement (SFCPC) have at least the following advantages: 1. It can reduce the cost of cement production as well as enhance the utilization factor of SS and FA. 2. The reduction of clinker can decrease air pollution compounds, such as CO 2, SO 2, NOx, during …
This project by the Maharashtra State Road Development Corporation (MSRDC) has been focused on reducing environmental impact by the use of fly ash and blast furnace slag in its concrete. Anil Gaikwad, managing director of the MSRDC, said "Fly ash and ground granulated blast furnace slag were also used in the concrete," He …
This Best Practice Guide shows that concrete in corporating fly ash and slag in proportions less. than 20 to 30%, and 25 to 35%, respectively, is generally considered equivalent to portland ...
Steel slag and fly ash-based steel fiber reinforced geopolymer mortars have been prepared and studied for its mechanical properties where 0.4% and 0.5% of ... & Udayabhanu, G. (2015). Characterization of gypsum synthesized from LD slag fines generated at a waste recycling plant of a steel plant. New Journal of Chemistry, 39, …
The use of fly ash as a stabilizer for SS base has been widely studied, as in LFSS [59], lime-fly ash stabilized steel slag and crushed stone [71], fly ash-steel slag soil [72], and fly ash-steel ...
Class C materials are often high-calcium (10% to 30% CaO) fly ashes with carbon contents less than 2%. Many Class C ashes when exposed to water will hydrate and harden in less than 45 minutes. Some fly ashes meet both Class F and Class C classifications. Fly ash is used in about 50% of ready mixed concrete (PCA 2000).
The results show that the compressive strength and permeability coefficient of permeable bricks can reach a good level when the composite ratio of steel slag is 6%, fly ash is 30%, and the design ...
Investigations on Alkali-Activated Slag/Fly Ash Concrete with steel slag coarse aggregate for pavement structures, International Journal of Pavement Engineering, 18:6, 500-512, DOI: 10.1080 ...
This paper presents an experimental study aimed at transforming fly ash and steel slag into an environmentally friendly construction material for green building …
PDF | On Jan 1, 2004, Nabil Bouzoubaâ and others published Use of Fly Ash and Slag in Concrete: A Best Practice Guide | Find, read and cite all the research you need on …
Section snippets Characterisation. Ordinary Portland Cement (OPC-53 grade) supplied by the Bharathi cement plant in Kadapa district confirmed to the requirements of Indian Standard (IS) 12269 (IS 12269, 2013), locally available fly ash collected from Vijayawada Thermal Power Station (VTPS) located in Vijayawada, and ground …
Fly ash (FA) is the principal industrial waste byproduct from the burning of solid fuels. FA is a powdery solid that is constituted mostly of unburned carbon (UC), metal oxides (Si, Fe, Ca, and Al), and other inorganic substances. UC is an inexpensive source of activated carbon that plays an important role in FA adsorption capacity.
It has been demonstrated that the appropriate amount of fly ash reduced the possibility of steel slag developing a skeleton, resulting in a decreased expansion …
In this study, industrial byproducts such as steel slag, phosphogypsum, and fly ash were analyzed. Steel slag has mitigation potential up to 60% in subtropical rice. …
To adding the steel slag – fly ash in the permeability is decreased the voids are percent in the soil. The increasing the percentage of steel slag in the mixture is reduce the soil – fly ash air voids. To increasing the steel slag the coefficient of permeability is reduced. From the economic analysis it is found that, a substantial save in ...
The materials used in this study were Ordinary Portland cement with the strength grade of 42.5 complying with the Chinese National Standard GB 175-2007, low-calcium fly ash complying with the Chinese National Standard GB/T 1596-2005, ground basic oxygen furnace steel slag complying with the Chinese National Standard GB/T …
Most of the slag (50%) is used in road projects, sintering, iron-making and in recycling in ... plastering mortar which has 600 mesh surface area comprises mineral slag, steel slag, furnace slag, fly ash, desulphurization gypsum, iron ore tailings and ... Kumar A (2014) Utilisation of wastes from integrated steel plant with special reference to ...
The distance between the university to cement, fly ash, and GGBS plant is 360 km, 30 km, and 330 km, respectively. Coarse aggregates were collected from a stone-crushing plant located in Guntur at a distance of 50 km. Fine aggregates were sourced from the Krishna River basin, located approximately 30 km away from the university. 3.2.
The objective of this study was to reduce the stockpile of steel slag, which is a solid waste generated in the steelmaking process, and promote the resource utilization of steel slag powder (SSP) in construction projects. Experimental research was conducted on SSP and fly ash (FA) as supplementary cementitious materials. Composite cement …
This study explores the utilization of steel slag and fly ash in road construction to address the increasing demand for pavement materials and the scarcity of natural aggregates. For this purpose, steel slag–fly ash composite is stabilized with lime and ground granulated blast furnace slag (GGBS) to assess their utility as a subbase …
The fly ash was obtained from Wuhan Qingshan Thermoelectric Plan, the specific surface area of this fly ash is 293 m 2 /kg, the apparent density is 2210 kg/m 3, its chemical compositions are listed in Table 1, its particle size distribution is illustrated in Fig. 2.. The phosphogypsum was obtained from Wuhan Inorganic Salt Chemical Plant, its …
Amelioration Effect of Fly Ash and Powdered Ground Steel Slag for Improving Expansive Subgrade Soil. February 2023. Journal of Engineering 2023 (4):1-9. …
Due to the free lime in steel slag, they determined that samples formed of steel slag cracked during the autoclaving process, the samples containing 80% steel slag and 20% silica powder had 23 MPa compressive strength, the samples having 80% steel slag and 20% fly ash had 5.3 MPa, and the samples having 50% steel slag and …
FA, or pulverised fuel ash, is a byproduct of coal-fired power plants and is used as a mineral additive in cement and concrete. Fig. 1 shows a typical layout of a coal-burning generating station. Pulverized …
steel slag fly ash process plant. Fly Ash,Slag,Silica Fume,and Natural Pozzolans,Chapter 3. 311 provides test methods for fly ash and natural pozzolans for use as supplementary ce
Modification of fly ash geopolymer with steel slag: Preparation of steel slag-fly ash geopolymer paste using steel slag andvarying dosages of NaOH-Na2SiO3 …
Song [24] attempts were made to alkali-activate fly ash-steel slag, and it was found that when the substitution rate of steel slag for fly ash was between 20%− 50%, the compressive strength at 28 days decreased significantly with increasing substitution rate. When the substitution rate of steel slag reached 50%, the compressive strength …