The addition of calcium stearate as a stabilizer could lead to a 7% reduction in dry density. Furthermore, samples with a higher cement content (or lower ... ITZ properties of concrete with carbonated steel slag aggregate in salty freeze-thaw environment. Construction and Building Materials, 114 (2016), pp. 162-171. View PDF …
Concrete manufactured with purely electric arc furnace slag aggregates has comparable radiation shielding parameters with lead.. At typical energy values of 100 kV, 125 kV 150 kV used in x-ray rooms, it is possible to construct a concrete shielding partition of transmission factors of 0.00052, 0.00081 and 0.00094 respectively which exactly …
In this paper, steel slag powder was used to replace part of the cement in road concrete, and group tests were carried out on coarse aggregates with different …
Steel slag is a solid waste produced in crude steel smelting, and a typical management option is stockpiling in slag disposal yards. Over the years, the massive …
Although a lot of research work has been carried out to explore the incorporation of various industrial byproducts such as silica fume, marble powder, fly ash, blast furnace slag, etc. in concrete production, the use of SSW as fine aggregate replacement in high-performance concrete (HPC) mixtures still needs to be explored in …
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, …
Furthermore, lead smelter slag (LSS), a by-product generated during the smelting process of lead ores or lead-containing materials, is an ample material that is presently being landfilled. The LSS has demonstrated excellent mechanical and durability characteristics, qualifying it as a suitable sand option in structural concretes [6, 7].
The slag is used as an aggregate in construction; however, its high crushing and attrition values, as well as water absorption exceeding standards, need attention, …
The test specimens presented in this study are of nine fly ash/granulated lead smelter slag (GLSS)-based geopolymer concrete columns and one beam all with 150 mm square cross-section shown in Fig. 1 (a). Five of the columns were designed as short columns with a length of 900 mm, and the other four columns were designed as slender …
Secondary lead slag, a waste product from battery smelting using CaCO 3 as flux, has been investigated for its use as an admixture and/or aggregate in the production of concrete blocks. The slag was added as partial replacements of cement and/or aggregate. The results revealed that the oxide components of the slag were similar to …
The optimum replacement ratio of fine lead- slag was found to be 20% for coarse lead- slag aggregate concrete and 40% for gravel coarse aggregate concrete. By increasing the cement content, high ...
The paper reports on some experimental results obtained from the production of concretes containing granulated slag of lead and zinc industry as sand replacement mixed in different proportions. Granulated slag is substituted for raw sand, partly or totally. ... Demirboga and Gül (2006) studied the use of blast furnace slag aggregate (BFSA) to ...
The other factors that lead to concrete deterioration in the Arabian Gulf region are the environmental conditions, ... Steel slag aggregate concrete mixtures were prepared with steel slag aggregate to total aggregate ratios of 0.45, 0.50, 0.55, 0.60 and 0.65. These aggregate proportions were utilized to evaluate the effect of quantity of coarse ...
To understand the role played by aggregate in the performance of concrete, it is necessary to de fine specific aggregate properties and show their effect on concrete properties. CHAPTER 3—AGGREGATE PROPERTIES AND TEST METHODS 3.1—Grading 3.1.1 Definition and test method—Grading refers to the distribution of particle sizes present in …
Concrete manufactured with purely electric arc furnace slag aggregates has comparable radiation shielding parameters with lead. • At typical energy values of 100 kV, 125 kV 150 kV used in x-ray rooms, it is possible to construct a concrete shielding partition of transmission factors of 0.00052, 0.00081 and 0.00094 respectively which exactly …
To recycle brick bat, clay tile and lead slag aggregate to minimize the risk of the environmental pollution. 2. The effect of adding lead slag to concrete as fine aggregate and brickbat & clay tiles as coarse aggregate to improve the properties of the concrete and make environment sustainable. 3. To compare cost and behavior of concrete made in ...
The BOF slag analysed shows a Los Angeles coefficient of 14, which is lower than limestone value (LA = 25) and other natural aggregates such as basalt (LA = …
AbstractThis study examines the benefits of substituting waste tire aggregate (WTA) for pumice aggregate in alkali-activated slag mortars at replacement ratios of 0% to 60% (by volume). Additionally, silica fume (SF) was added to mortar mixes at a ...Practical ApplicationsThe feasibility and benefits of utilizing waste tire aggregate (WTA) and …
Clinker-free, carbonate-bonded monoliths are prepared by accelerated carbonation for immobilization of hazardous elements present in: a stainless-steel slag, two copper slags, and one lead slag.
Certain researchers have affirmed that lead slag can be used successfully as an aggregate for road construction and concrete owing to its favorable physical and mechanical properties (Alwaeli, 2017; Buzatu et al., 2015). ... Lead slag is a black granular material similar to sand; it has a high specific gravity of 3.6–3.9 g/cm 3 owing to its ...
Download Table | Characteristics of the granulated lead slag secondary aggregate and the sand aggregate from publication: Utilization of granulated lead slag as a structural material in roads ...
MSDS: Slag Page 3 of 6 Revised: 03/01/14 Section 4: FIRST AID MEASURES Eye Contact: Rinse eyes thoroughly with water for at least 15 minutes, including under lids, to remove all particles. Seek medical attention for abrasions. Skin Contact: Wash with cool water and a pH neutral soap or a mild skin detergent. Seek medical
The results indicate also that, half value layer (HVL) decreases upon replacing sand by the fine portions of lead-slag and magnetite aggregates. This is mainly due to the density of lead slag concrete containing fine aggregate of lead slag (ρ = 3.41) higher than lead slag concrete containing fine aggregate of local sand (ρ = 2.84).
A recent study on artificial primary lead slag confirmed immobilisation in geopolymers [29]. In the present work an industrially produced and already landfilled lead slag is incorporated in the geopolymers. ... MSWI bottom ash and boiler and fly ash for using as a fine aggregate in cement mortar. J. Hazard. Mater., 154 (2008), pp. 766-777. …
This paper presents the influence of supplementary cementitious materials (SCMs), such as fly ash (FA), silica fume (SF), ground granulated blast furnace slag (GGBS), and waste glass fine aggregate (GA), on the alkali-silica reaction (ASR) in high-strength and normal-strength mortar using an accelerated mortar bar test (AMBT). …
Figure 3. Steel slag aggregate particle Disruption Ratio test under autoclave Bulk Expansion Force Test and Expansion Force Generated By a Single Unstable Steel Slag …
Mechanical Strength and Microstructure Properties of Concrete Incorporating Copper Slag as Fine Aggregate: A State-of-the-Art Review. Tareg Abdalla ... this transition to renewable energy is expected to lead to an important increase in the demand for metals, as lithium, nickel, manganese, and cobalt are required in traditional electric vehicle ...
Construction materials are dealing with new challenges due to increased resource exploitation by globalized infrastructure. Research has consequently …
🔹 Uses: Construction Industry: Recycled steelmaking slag is extensively used as an aggregate in concrete, road base materials, and in cement production. ... This can lead to cracks, reduced ...
To utilize blast furnace slag in an environment friendly, economically efficient and high value-added manner, this study successfully prepared glass–ceramics by directly using high-basicity blast furnace slag (R = 1.26) as raw material through low-pressure sintering method (80 kPa). This study examined the influences of particle size, heat …
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