— 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 …
— The most common form of quartz is silicon dioxide, which is a chemically inert and relatively hard mineral. The percentages of SiO 2 in steel slag and river sand are 55.7% and 85.7%, respectively. Al 2 O 3 is also chemically inert and contributes to hardness when used in concrete. The Al 2 O 3 is
materials for concrete to fulfill the role of sand to achieve desired strength. Copper slag is a by-product obtained during smelting and refining of copper, many researchers have already found its potential to use copper slag as natural sand substitute. Copper slag has similar particle size characteristics seemingly to that of sand.
— INTRODUCTION The value of concrete in present society cannot be underestimated. We can see concrete structures everywhere, such as buildings, roads, bridges, and dams. There is no escaping the impact concrete makes on your everyday life. Concrete is a composite material which is made up of filler and a binder. Typical …
3.2 Optimization of Steel Slag: Based on the mix design, the mix proportions for M40 grade concrete, using steel slag as coarse aggregate replacement material are shown in Table 5 Table 5: Mix proportions for Slag replacement S.No Replacement of Steel Slag in % Mix Proportion 1 0 0.45:1:1.22:2.4 2 20 0.45:1:1.22:2.39
— The addition of steel slag aggregate showed an increment in concrete compressive strength compared to the control concrete, increasing with the percentage of steel slag aggregate up to . The observed increment of compressive strength at 7 day test when 25, 50, 75, and of the coarse aggregate was replaced by steel slag …
— To reduce the amount of natural sand and gravel used in construction, researchers have tried to investigate the possibility and effect of steel slag used to replace powder [7-10] or aggregate [11 ...
The recent years in Vietnam, the price of sand increases double. Thus, people are looking for another resource replacing sand. On the other hand, steel slag is a big problem in Vietnam because of the development of steel industries. Steel slag has been studied to apply in several types of constructions, including in building and pavement. However, …
— In the two last decades, world production of pig iron and steel has undergone a significant increase. In 2018, 1252.87 and 1806.46 million tons of pig iron and steel, respectively, were produced ...
— Steel slag sand is used as a replacement for natural river sands mentioned in the current investigation in concretes. This steel slag sand was collected from the region of Debre Zeit [Bishoftu] and Akaki Kality east of Addis Ababa. ... On the other hand, steel slag concrete has lower strength at early ages; therefore, steel slag can be used to ...
— Overall, the steel slag concrete strengths were within the limit of structural concrete as the compressive strength results for 4, 8 and 12% percentage replacement were within the limit of 17.24–41.36 MPa according to …
— The weight loss in SS concrete after exposure to acid is 60% less as compared to conventional concrete, concluded that steel slag concrete is more resistant to acid attack. Qasrawi [7] suggested that self-compacting concrete can also be prepared with the help of coarse SS aggregate in concrete. Coarse SS up to 50% substitution level …
— Manufactured sand is a replacement for river sand in buildings. It is produced by crushing granite stones that are known for their hardness. The size of manufactured sand (M-SAND) is smaller than 4.75 mm. ... Qasrawi H, Shalabi F, Asi I (2009) Use of low CaO unprocessed steel slag in concrete as fine aggregate. Constr Build Mater …
properties of concrete containing the steel slag as a partial replacement for sand were investigated in this study. At different percentages i.e. 0%, 20%, 25%, 30% & 35% the partial replacement of sand is done for the M-30 grade of concrete. The specimens were tested for workability, compressive strength, split tensile strength
— The primary aim of this research was to evaluate the strength of concrete made with steel slag as replacement for fine aggregates. ... Partial replacement of sand with steel slag will be made for ...
— 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 …
— Study on replacement of coarse aggregate by steel slag and fine aggregate by manufacturing sand in concrete. International Journal of ChemTech Research, 8(4), 1721–1729. Google Scholar Tiwari, M. K., Bajpai, S., & Dewangan, U. K. (2016). Steel slag utilization: Overview in Indian perspective.
Carbon dioxide sequestration using steel slag—modeling and experimental investigation. Smitha Gopinath, Anurag Mehra, in Carbon Dioxide Sequestration in Cementitious Construction Materials, 2018. 4.1 Introduction. Steel slag is an industrial waste that is generated during the production of steel. In the production of steel, oxides of metal …
If fine aggregates are replaced by steel slag of specific size and specific percentage, then it will reduce the fine aggregate content i.e. river sand, which will help to reduce the ill …
Using steel slag in HMA facilitates the prevention environmental pollution.6 The highest and lowest compressive strength was obtained in the concrete specimens prepared with steel slag and calcareous limestone aggregates, respectively. Similarly, the split tensile strength of steel slag aggregate concrete was the
— The study concludes that the use of steel slag in concrete improves the physical properties of the cement concrete, and thus, steel slag concrete can be used for building floorings, pavements, or ...
— Adding up to 40% of copper slag as sand replacement yielded more strength with that of conventional M35 grade concrete. However, further additions of copper slag caused reduction in strength with ...
— Steel slags have a chemical composition close to that of the Portland cement clinker, mainly constituted by calcium-silicates and calcium-ferrites, which makes this industrial waste potentially usable as a raw material for cement and concrete production [91].The presence of steel slag in the clinker manufacturing process reduces the …
— Slag, as shown in Fig. 1, is the 16th ingredient of high-performance concrete production [22], called supplementary cementitious materials (SCM) [23], that can enhance the strength and durability of concrete [2].The highly fine slag powder, with a surface area of 400–600 m 2 /kg and a bulk density of 1200 kg/m 3, can be mixed with free lime to …
— GGBS is a finely powdered iron slag by-product of the steel-making industry. The mechanical characteristics of M40 grade concrete with partially replaced cement of 30%, 40%, and 50% by GGBS are examined in this study. ... Strength studies on slag-concrete as a partial replacement as GGBS. ... K. Pramod, A. Chandrashekera. An …
of Steel slag within the material. Material Used Steel Slag Steel Slag is formed from steel cutting factories during the sawing and finishing of steel parts, and almost 20 - 25% of the processed steel is converted into the powder. Deletion of the Steel Slag from the steel cutting places is a noteworthy environmental trouble today.
The steel slag replacing sand in mortar or concrete is the objective of the study. The experiment results indicate that the partly steel slag replacing sand could maintain the …
— Experimental work was carried out to study the effect of using steel slag (SS) and recycled concrete aggregate (RCA) as replacements for the natural aggregate in concrete. Waste materials, such as SS, which is a by-product generated during the production of steel and concrete rubble, which is produced by demolition activities, are …
— Specifically, the focus is on utilizing iron slag as a partial replacement for sand in concrete, showcasing integration avenues and highlighting potential advantages. The research evaluates concrete's strength and durability across replacement levels ranging from 0 to 50% of fine aggregates.
— Specifically, the focus is on utilizing iron slag as a partial replacement for sand in concrete, showcasing integration avenues and highlighting potential advantages. …
OBJECTIVES To determine optimum dose of alternative materials such as steel slag as partial replacement of sand respectively The study focuses to determine the relative performance of concrete by using above waste products To replace Sand with various percentages 10, 20, 30, 40% of steel slag waste in M25, M30 & M35 concrete To search ...
— In terms of strength development, rice husk ash concrete is like fly ash/slag concrete. Rice husk ash, on the other hand, is a very active pozzolanic material, and the consequences of the pozzolanic reactions are visible at an early age rather than later as with other replacement cementing materials [14].It is favorable to the strength …
— Cement is replaced by slag from different steel mills, both blast furnace and ladle furnace slag. The percentages of slag substitution by cement are 30%, 40% and …