PROPERTIES OF HIGH STRENGTH CONCRETE USING 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.
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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.
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
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
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).
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
Other uses Include, skid resistant asphalt aggregate, rail ballast asphaltic concrete aggregate, soil conditioner, hard stand areas and unconfined construction fill. Electric Arc Furnace Slag (EAF or steel furnace slag) Produced when scrap metal and fluxes are oxidized by the use of an electric current. Molten slag is generally placed into ...
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
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
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 %
Apr 20, 2019· The use of steel slag as a fine aggregate in concrete mixtures has a positive effect on toughness and the ultimate expansion ratio; hence, adding steel slag to concrete will improve the energy absorption capacity. (3) Compared with HSSC, steel slag is more advantageous for the compressive strength of NSSC.
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.
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.
The primary applications for steel slag in the United States are its use as a granular base or as an aggregate material in construction applications. Disposal. While most of the furnace slag is recycled for use as an aggregate, excess steel slag from other operations (raker, ladle, clean out, or pit slag) is usually sent to landfills for disposal.
The objective of reseach paper is to study behavior of steel slag concrete. Also to study comparison of compressive strength of steel slag concrete for 0%, 10%, 20%, 30%, and 40% replacement of fine aggregate by steel slag. The concrete specimen cubes are .
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 ...
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.
Utilization of Steel Slag in Concrete as a partial replacement material for fine aggregates ... steel slag (EAFSS) in concrete aggregate helps in enhancing the cohesion between the aggre gate ...
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.
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%,
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 ...
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.
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 .
Takashi [3] investigated the use of slag from copper smelting as a fine aggregate in concrete. From mortar strength tests with a cement/slag/water ratio of 1/2/, the ball milled slag gave a higher strength. The effects of using several types of slag on mortar and concrete reaction, reinforcing steel .
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