The present study will describe the characteristics and the effects of concrete properties when fine aggregate is partially substituted by steel slag and cement partially substituted by metakaolin ...
LCA of replacing high-quality coarse aggregates by EAF steel slag. • The inventory gaps were filled by laboratory tests and theoretical models. • The absorption rate strongly affects the binder content and the aggregate humidity. • Slags can replace aggregates located more than 144 km away.
Results revealed that a 30% replacement of fine aggregate with steel slag led to higher compressive strength at both 7 and 28 days, while a 45% replacement …
Steel slag replacement as a fine or coarse aggregate showed better resistance to acid than traditional concrete, while fine aggregate provided better results than both. Since steel slag utilized as fine aggregate enhances hydration, microstructure has …
Steel slag aggregates (SSA) can replace natural aggregates in asphalt and cement-based road construction, lowering the environmental impact by reducing the …
So these steel slag aggregates can be used to replace natural aggregates. • The crushing value of the steel slag aggregate is found to be 5.20%. • The CBR value of the steel slag aggregates is found to be 21.32% and 25.62% for soaked and unsoaked conditions, respectively. • The impact value of steel slag aggregates is found to be …
Utilizing treated steel slag as coarse/fine aggregate in concrete production is a high-value solution that can alleviate the worry about resource depletion …
After 28 and 90 days, the strength was increased. Nevertheless, worse results were obtained when replacing 80% of the slag, and in the first days of setting, the strength of the reference concrete was not reached. ... Noumowe A. Concretes made of EAF slag and AOD slag aggregates from stainless steel process: Mechanical …
Use of steel slag is advantageous as cost of material gets reduced and it solves the problem of disposal [8], [9], [10]. MH. Lai et al replaced both natural C.A. & F.A. (Fine aggregate) with steel slag which showed improved results against the permeability [11]. By using the Steel slag, the bond strength of concrete can be improved [12].
The use of steel slag aggregates in concrete by replacing natural aggregates is encouraging because their effect on concrete strength is greater than that of natural river sand. ... of concrete ...
The objective of this investigation is to produce concrete by replacing fine aggregate and coarse aggregate with copper slag and steel slag. After 7, 28 and 56 curing days, the mechanical properties of the various proportions were found and an analogy was drawn with conventional concrete.
The coarse steel slag aggregate (CSSA) can be reused as aggregate in cement concrete mixes. Hence, this experimental work considers an opportunity to investigate the effect of partial substitution of natural coarse aggregate (NCA) by CSSA for 20%, 40%, and 60% for the M40 grade concrete mix. ... (2020) Partial replacement of …
The mixture with iron slag as a coarse aggregate 20% replacement gives the best results in compressive strength, tensile strength, and flexural strength, reaching 51.75%, 52.9%, and 36% increases ...
1. Introduction. In recent years, concrete made with recycled materials has been widely used for civil infrastructure for promoting sustainability and circular economy [1], [2], [3], [4].As a solid waste from steel making, steel slag can be recycled to replace natural aggregates in concrete, making an environmentally friendly construction …
This study aims to investigate the effect of waste steel slag (SS) as partially replaced with cement and fine aggregate on concrete for different mixes in terms of compressive strength (CS) and electrical resistivity (ER). SS is a molten mixture of silicates and oxides that solidifies upon cooling, a byproduct of the steel-making process. Before …
In this study, a comparison is made between the experimental characteristics and behaviour of concrete using controlled specimens, as well as aggregates and cement that have had some of their components partly replaced with steel slag and rice husk ash in varied quantities. The replacement of steel slag up to 75% …
As there were very limited studies on the combination related to the partial replacement of glass powder to cement and steel slag to fine aggregate, an attempt has been made by partially replacing the cement with 20% glass powder and fine aggregates with 25%, 50% and 75% of steel slag in M20 grade SCC.
The primary aim of this research was to evaluate the strength of concrete made with steel slag as replacement for fine aggregates. For this present study M20 grade concrete shall be designed ...
From the results of compressive strength, split tensile strength of 7 days, 14 days, 28 days curing, 40 % replacement of fine aggregate by steel slag is the optimum percentage of replacement of M30 grade concrete and decreases considerably in further replacement of slag in concrete. REFERENCES [1] Baha Vural KOK, Necati Kuloglu- "Effects of ...
aggregates. Replacing all or some portion of natural aggregates with steel slag would lead to considerable environmental benefits. This report showcases important studies conducted on use of steel slag as fine aggregate and its effect on the strength, durability, fresh density, workability etc of the resulting mix. A
This study focuses on the utilization of waste steel slag as a replacement for coarse aggregates in the production of steel slag aggregate concrete. The accumulation of waste slag aggregates from iron and steel companies presents a signicant environmental challenge, as most of these materials end up in landlls. Moreover, the rapid rate of ...
Steel slag is a sustainable, high-strength alternative to natural aggregates found in traditional cement. ... Replacing natural aggregates with industrial waste .
Several studies have ascertained steel slag to be a potential material for either partial or total replacement for cement and aggregates in the production of concrete [14, [16][17][18][19][20][21 ...
In concrete steel slag has been incorporated as cementing material/aggregate, which increases the strength of concrete with the utmost result obtained is 67% of steel slag replacement for recycled aggregate (Qasrawi, 2014). BOF slag was used as a hydraulic binder in which the slag was rapidly quenched and studied for its mechanical properties.
Various percentage of replacement Concrete with replacement Cement in % Fine aggregate in% Coarse aggregate in % River sand Steel slag Crushed Granite Steel slag 0% 100 100 0 100 0 30 % CA 100 100 0 70 30 40% FA 100 60 40 100 0 From the test results, the compressive strength of concrete increased 4.6% when the coarse …
This paper aims to study experimentally, the effect of partial replacement of fine aggregate by steel slag (ss), on the various strength and durability properties of concrete by using the mix designs .the optimum percentage of replacement of fine aggregate by steel slag is found. Workability of concrete gradually decreases, as the
Steel slag could be valuable for promoting a sustainable relationship between the concrete and steel industries. C 2 S, C 3 S, C 4 AF, and C 3 A in steel slags are typical mineral phases of Portland cement, indicating the potential of steel slags to function as hydraulic materials. Therefore, one recycling option is to grind steel slags …
Likewise, Muhammed et al. [19] suggested 40% steel slag replacement for brick aggregate concrete. One of the main reasons behind highest compressive strength of RAC containing 50% IFS is that, for ...
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 water–cement (W/C) ratios, different steel slag parameters, and different particle sizes. A sample of 100 mm × 100 mm × 100 mm was prepared and cured for 3 days, 7 days, and …
More extensive studies are being done for a broad application of steel slag aggregates in the construction field and it has been reported that usage of steel slag aggregates as partial or complete replacement for blue metal (CA), the compressive strength, flexural strength and split-tensile strength are seen improving more than what …
The economic feasibility of replacing conventional aggregates with recycled slag aggregates and the partial replacement of cement with steel slag powders is also addressed. An in-depth topic on the performance of cement-based composites produced with ground steel slag was also built, assessing workability, mechanical strength and …
* With an increasing proportion of steel slag in the concrete mix the workability of fresh concrete decreases. * Compressive strength, split tensile strength & flexural strength was found to increase with the addition of steel slag. The maximum strength value occurs at 25%. Slag ratio and decline beyond 25%. replacement ratio. * The slight ...
Land-based applications that have been demonstrated include replacing natural sand as aggregate in cement, which may be combined with the CO 2 sequestration properties. Steel slag shows use as a material (when spread over acidic soils to help to raise the pH to a more neutral level) and to enhance the physical properties of soft soils.
Abstract. This study aims to investigate the effect of waste steel slag (SS) as partially replaced with cement and fine aggregate on conventional concrete for different mixes named M25, M35, and M47 in terms of compressive strength (CS), electrical resistivity (ER), and piezoresistivity behavior. SS is a molten mixture of silicates and …
