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Steel slag is currently used as aggregate in hot mix asphalt surface applications, but there is a need for some additional work to determine the feasibility of utilizing this industrial byproduct more wisely as a replacement for both fine and coarse aggregates in
Steel slag aggregate (SSA) is a byproduct of the production of steel in an electric arc furnace. The high iron oxide content of the aggregate results in an aggregate that is very hard and very dense (SSA is 2030% heavier than naturally occurring aggregates such as basalt and granite).
INTRODUCTION. Steel slag can be processed into a coarse or fine aggregate material for use in dense and opengraded hot mix asphalt concrete pavements, (1,2,3) and in cold mix or surface treatment applications. (4) Proper processing of steel slag and special qualitycontrol procedures are extremely important in selecting steel slag for use in asphalt paving mixes.
admixtures with steel slag powder and blast furnace slag powder mixed in concrete. Saud AlOtaibi (2008) studied use of recycling steel mill as fine aggregate in cement mortars. The replacement of 40% steel mill scale with that of fine aggregate increased compressive strength by 40%,
Fine Aggregates All fine aggregates, except aircooled blast furnace slag sand or granulated blast furnace slag sand, must have an acid insoluble content of not less than 40 percent. When using these slag sands, the acid insoluble content must not be less than 25 percent. The acid insoluble content is determined by ITM 202.
flexural properties of concrete containing steel slag are compared with that of concrete containing river sand and also manufactured sand. But in this paper only the effect of using granulated steel slag in concrete mixes as an fine agate on compressive strength and workability is discussed.
Dec 31, 2018· Abstract. This paper aims to study the compressive strength of concrete made using LinzDonawitz (LD) slag as a replacement for natural fine and coarse aggregate with both getting replaced up to at an interval of 20% respectively.
Use of Blast Furnace Slag Aggregate in Concrete Hiraskar and Chetan Patil AbstractThe Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by .
steel slag as concrete as coarse aggregates compared to the conventional use of granites for the same assess the performance of dense cement mix prepared using steel slag (SSDA) and dense cement mix incorporating a combination of 50% granite and 50% steel slag .
Steel slag, which has low CaO content, is a byproduct of steel processing. The steel slag consisting iron oxides is ground into sizes as coarse aggregates used for concrete.
various replacement level of steel slag with fine aggregate. The use of steel slag aggregates in concrete by replacing natural aggregates is a most promising concept. Steel slag aggregates are already being used as aggregates in asphalt paving road mixes due to their mechanical strength, stiffness, porosity, wear resistance. II. MATERIALS USED
The two types of concrete aggregate that are manufactured using iron and steel slag as a raw material and which are covered by JIS standards are blast furnace slag aggregate and electric arc furnace oxidizing slag aggregate. Each of these types includes course aggregate and fine aggregate.
concrete. Results concluded that the use of the steel slag as fine aggregate had a negative impact on the workability of concrete, but it had positive effect on mechanical properties, and the best results of compressive strength were obtained as the steel slag content was 15% and 30%. The steel slag aggregate produced by a steel plant is also ...
Mar 18, 2011· This paper aims to investigate the possibility of utilizing steel slags produced in Croatian plants as a concrete aggregate. Aggregate properties were determined on coarse slag fractions (4–8, 8–16 mm) according to the relevant European Standards. Considering the obtained results, slags were specified in accordance with the classes as given in the main European standard for aggregates ...
aggregates cannot be overemphasized. The fine and coarse aggregates generally occupy 60% to 75% of the concrete volume (70% to 85% by mass) and strongly influence the concrete''s freshly mixed and hardened properties, mixture proportions, and economy. Fine aggregates (Fig. 51) generally consist of natural sand or crushed
Blast furnace slag, peletised slag and granulated slag can be used as an aggregate in concrete replacing primary aggregates in a number of applications. Mortar GGBS used as a cementitous component in mortars enhances workability and can allow further working time for the bricklayer.
concrete using BF slag as aggregate. Thereafter, the aggregate use of BF slag expanded, and in 2013, the use of fine BF slag aggregate ... The measures to solve the problems in the use of fine slag aggregate for con ... 20cm thick beds of iron/steel slag 2) Concrete mixing According to No. 3 in Table 5 3) Outlines of paving work ...
study has been conducted to explore the possibility of 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. The
Using steel slag as both fine and coarse aggregate must be an efficient way with high additional value if possible because of the high percentage at 70~80% of aggregate in cement concrete [5]. Comparing with other approaches of using slag in concrete, such as using as cement admixture or mineral admixtures, the consumption of slag will
The use of steel slag as fine aggregate in concrete mixes has a positive effect on both compressive and tensile strengths; hence introducing it in concrete will eliminate one of the environmental problems created by the steel industry. 3.
This report presents available information regarding the use of aircooled blast furnace slag (ACBFS) as coarse aggregate in concrete pavements. The report discusses ACBFS aggregate production and properties, and the properties of concrete produced with ACBFS coarse aggregate. Both the .
Steel slag used in paving mixes should be limited to replace either the fine or coarse aggregate fraction, but not both, since hot mix asphalt containing steel slag is susceptible to high void space and bulking problems due to the angular shape of steel slag aggregate.
ing slag is used instead of the fine and coarse aggregates in concrete, and ground granulated blastfurnace slag (granules of molten blastfurnace slag obtained through a process of quenching, grain refining, drying and pulverizing), fly ash, and alkali activator (lime dust, slaked lime, cement, etc.) are employed instead of the cement
Mechanical Properties Of Concrete Using Steel Slag Aggregate Page | 9 improvement in compressive strength, split tensile and flexure strength over control mixes by 4 to 8 %. The replacement of 100 % slag aggregate (coarse) increased concrete density by about 5 to 7 %
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