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Partial replacement of copper slag in fine aggregate and cement reduces the cost of making concrete. Replacement of copper slag 100 replacement with sandincreases the self weight of concrete specimens to the maximum of 15-18. The initial and final setting time of copper slag admixed concrete is higher than control concrete.
steel slag. The main objective of this study is to analyze the use of steel slag as the replacement of natural aggregates for the road base which this study focusing on identifying the physical and mechanical properties of steel slag.
May 04 2018 The influence of air-cooled blast furnace slag aggregates as replacement of natural aggregates on the water absorption of concrete and mortar was studied and the mechanism was analyzed.
Apr 28 2016 The second and third mixes had 30and 50 of the cement replaced by fly ash. The fourth and fifth mixes had 30 and 50 of cement replacement with slag. Total aggregatecementitious materials ratio was 6.0 with 33 of fine aggregates and The watercementitious ratio was 0.55. 10.
Ppt On Slag Replacing Natural Aggregates. Making slags as substitutes for natural aggregates can be expected because it has constant quality and is characterized by the capability of a stabilized and massive supply.Furthermore because the specif-ic weight of a steelmaking slag is larger than that of natural aggre-gates there is a possibility of massive production at a lower cost of.
aggregate and slag cement replacement levels of 0 30 and 50 for a total of 24 different types of concrete. In addition one source of OPC was studied with both aggregates and all replacement levels at a mixing and curing temperature of 40 F. Strength tests were conducted at six ages.
Using recycled coarse aggregate RCA to replace natural pebbles and using lithium slag LS from industrial waste to replace cement in order to improve the mechanical properties of concrete and solve environmental problems. In this study the effects of different substitution rates of RCA 0 30 50 and 70 and different LS contents 0 10ampx0025 15ampx0025 20ampx0025 and 25ampx0025.
tocodal provisions IS 23861963and the results are The results showed that replacing about 60 percent of given in tables. steel slag aggregates for coarse aggregate and 40 Steel slag The steel slag used here is an air cooled percent of ecosand for fine aggregate will not have any slag and is collected from Dennis steel plant at adverse effect on the strength of the concrete.
Due to the higher water absorption capacity of RCA as compared to natural aggregate both the aggregates are maintained at saturated surface dry SSD conditions before mixing operations. The proportions of the ingredients constituting the concrete mixes are 11.52.9 and 11.22.4 with water cement ratio 0.50 amp 0.45 respectively for M-20 amp M.
Sep 02 2015 Environmental and economic factors increasingly encourage higher utility of industrial by-products. The basic objective of this study was to identify alternative source for good quality aggregates which is depleting very fast due to fast pace of construction activities in India. EAF oxidizing slag as a by-product obtained during the process in steel making industry provides great opportunity.
0 to 20 and achieved a maximum value at a replacement of 30 Steel slag in fine aggregate afterwards decreased for 40 replacement of steel slag. However compressive strength of concrete for the partial replacement of Fine aggregate with Steel slag of 40 does not show major decrement as compared to 30 and can be use by control mix.
Slag aggregate has become an important resource of aggregate to replace traditional natural aggregate in construction engineering. Although the use of iron blast furnace BF slag has a long history the modern use of slag to replace natural aggregate was initially based on the consideration of the availability of natural resources sustainable.
In this paper the performance of replacing natural aggregates by electric arc furnace steel slags aggregate is comprehensively investigated and its effect on mechanical properties is analysed.
Experimental Investigation on Partial Replacement of Natural Fine Aggregate by Steel Slag and Natural Coarse Aggregate by Waste Limestone Aggregate in Cement Concrete Md Zeeshan1 Prof. Rohan S Gurav2 Prof. Brij Bhushan S3 Prof. Maneeth P D4 1M.
A STUDY ON RECYCLED CONCRETE AGGREGATES PAVAN P S 1 BABITHA RANI H DEEPIKA GIRISH RAGHAVENDRA K M 2 VINOD P N 1DUSHYANTH.V.BABU.R SHAIK NUMAN1 1Assistant Professor Department of Civil Engineering SET Jain University. 2Student Department of Civil Engineering SET Jain University.
The incorporation of granulated blast furnace slag can lower the cement content and be an alternative to the rigid economic structure replacing conventional aggregates by slag aggregates accessible at lower costs. Compared to conventional concrete the implementation of this concrete does not have any particular problems.
Using recycled concrete from old demolished structure as a replacement to aggregates is a good practice to conserve natural aggregates. Another practical solutions to conserve natural resources is to use supplementary cementitious material such as GGBS fly ash slag silica fume etc as a replacement to cement thereby the microstructure.
This project present the usage of copper slag for the partial replacement for fine aggregate the experimental procedure is conducted for the replacing percentage of 101520.for this above replacement percentage m25 grade concrete is used.
Aug 23 2017 Particle distribution of steel slag is uniform with 83 of the material in between 0.6 mm and 0.15 mm Grain size distribution of the palm oil clinker fine aggregate is about 46 particles between 1.18 mm0.075 mm Grain size distribution of the ISF slag is about 75 particles between 1.18 mm and 0.3 mm The particle size distribution of bottom ash is with 55 material in between 1.
Nov 21 2020 Glass can be used as a replacement to fine aggregates in concrete. It is broken down into a sieve size of 8 and 4. Few studies produced washed glass sand to gain the Fineness Modulus of natural sand.
The use of blast furnace slag aggregates in concrete by replacing natural aggregates is a most promising concept because its impact strength is more than the natural aggregate. Steel slag aggregates are already being used as aggregates in asphalt paving road mixes due to their mechanical strength stiffness porosity wear resistance.
both natural and steel slag aggregate. Weight of empty mould taken for the test is 1.745kg. Table3 Impact value of Natural aggregate and steel slag Sr.no Description Natural Aggregate Steel Slag 1. Weight of Sample W1 0.575kg 0.545kg 2.
aggregate reduction decrease the cost of concrete but at the same time the strength also increases. The mix prepared with 30 replacement of fine aggregateM-sand by copper slag is most 0 10 20 30 40 50 60 7 Days 14 Days 28 Days m 2 Number of Days Comparison Of Convention Concrete With Copper Slag Replaced Concrete 0 10CS 20CS 30c 40CS 0.
Search for Good Aggregate Lack of local aggregates to provide the required skid resistance A number of aggregates from different regions were evaluated One of these aggregates was Melter Slag Melter slag was slightly more difficult to use than the natural aggregates but appeared to be providing good initial performance.