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ppt on slag replacing natural aggregates

Concrete Aggregate | Stronger Concrete | What Is Slag

Apr 08, 2020· "Use of slag as a replacement of conventional aggregates show much better cement paste to aggregate bond performance and provides a monolithic effect," the researchers conclude.. Slag …

Innovative Green SCC with Partial Replacement of ...

SCC with 50% replacement of natural fine and coarse aggregate with Slag aggregates is compared to SCC with natural aggregates there is a decrease of 9% strength. But comparing SCC with 50% replacement of natural fine and coarse aggregate with Slag aggregates with conventional concrete we see that there is increase of 22% in strength.

Replacement of Natural Sand with Efficient Alternatives ...

50 % copper slag can be used as replacement of natural sand in to obtain mortar and concrete with required performance, strength and durability. (Khalifa S. Al-Jabri et al 2011) Fig 1: Copper slag[17] 2.2 GRANULATED BLAST FURNACE SLAG Granulated blast-furnace slag (GBFS) is obtained by quenching molten iron slag (a by-product

partial replacement of sand by steel slag in concrete

on evaluation of the use of air cooled steel slag as a replacement for natural aggregate in concrete pavements. The steel slag from basic oxygen furnace was been used for the study. Compressive strength tests were conducted on samples with slag ratios of 0, 25,50, 75 and and cement contents of 200, 300 and 350 kg/m3. Read More

Natural Aggregate - an overview | ScienceDirect Topics

10.4.1.7 Optimum slag replacement. The slag proportion of replacement of natural aggregates is an important factor affecting successful use. The optimum proportion should be decided based on laboratory tests on selected proportioned mixed for a specific slag.

Experimental investigation of using slag as an alternative ...

These paper present results of experimental investigations carried out to evaluate effects of replacing aggregate (coarse and fine) with that of slag on various concrete properties. The basic objective of this study was to identify alternative source of good quality aggregates which is depleting very fast due to the fast pace of construction activities in India.

Experimental Investigation of Copper Slag Replacement of ...

Partial replacement of copper slag in fine aggregate and cement reduces the cost of making concrete. Replacement of copper slag ( replacement with sand)increases 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.

Copper slag as fine aggregate for high performance concrete

The effect of copper slag addition as replacement of fine aggregate on the density of normal and high strength concretes is shown in Fig. 1. It can be seen from Fig. 1 that there is general increase in the density of both normal and high strength concretes with the increase of copper slag replacement …

Tarmac | Slag Aggregates in Concrete

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.

Construction aggregate - Wikipedia

Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates.Aggregates are the most mined materials in the world. Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as ...

ppt on slag replacing natural aggregates

Mar 25, 2014 · PowerPoint Presentation: Conclusions As the percentage of copper slag increases workability increases. 2. Maximum Compressive strength of concrete increased by 32 % at 20% replacement of fine aggregate, and up to 80% replacement,concrete gain more strength than normal concrete strength.

Presentation GGBS Edited | Construction Aggregate | Concrete

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 ...

Performance of Replacing Traditional Natural Aggregates in ...

This study focuses on how the voids in mineral aggregate (VMA) and performance of dense grade asphalt concrete (DGAC) are influenced by the replacement of coarse natural aggregates with basic oxygen furnace (BOF) slag.

Replacement of Natural Fine Aggregate by Copper Slag ...

This paper presents the applications of replacement of natural fine aggregate using copper slag. The study is conducted by replacing the fine aggregate from 0 to at the interval of 20% on M25 grade concrete and 1.8% superplasticizer by weight of cement. The compressive strength, split tensile strength and flexural test is studied and reported.

Replacement of Natural Coarse Aggregate by Industrial ...

both natural and steel slag aggregate. Weight of empty mould taken for the test is 1.745kg. Table:3 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. Weight sample and …

slag aggregate to concrete pdf - Harder & Klassen

.and Sustainable Replacement for Natural Coarse Aggregate. PDF 315The Scientific World JournalVolume 2015 (2015), Article ID 972567.concrete made with 50% EAF oxidizing slag aggregate in addition to 30% . learn more

Durability of Mortar Incorporating Ferronickel Slag ...

granulated slags as replacement of natural aggregate and ground slag as replacement of cement. The most common type of commercially available ground slag is GGBFS (Hooton 2000; Shafigh et al. 2013; Yang et al. 2017). Durability improvement of concrete by the use of GGBFS as an SCM has been well documented by many works in lit-

Utilization of Industrial Waste Slag as Aggregate in ...

said that full substitution of slag aggregate with normal crushed coarse aggregate improved the flexure and split tensile strength by 6% to 8% at all replacements and in case of replacing fine aggregate & both the aggregates( Fine & coarse) with slag, the strength improvement was at 30% to 50% replacements.

COMPRESSIVE STRENGTH OF STEEL SLAG AGGREGATE AND ...

Feb 22, 2016· This research deals with substantial replacement of natural aggregates and natural sand used in concrete. In this study coarse aggregate were partially replaced with steel slag aggregate with different replacement percentage in concrete i.e. 0%, 10%, 20%, and 30%.

Ppt On Production Of Sand And Aggregates

Combined Use of Natural and Artificial Slag Aggregates in . through recycling in the manufacture of artificial aggregate. Because aggregates occupy a large volume of SCCs, using such mineral for making artificial aggregate through cold bonding process and using it in production of SCCs may be an effective way to increase interest about ...

Electric arc furnace slag as natural aggregate replacement ...

Dec 01, 2015· The coarse aggregate used in producing concrete was steel-slag material, while the fine aggregate was traditional river sand; the ratio of coarse aggregate to fine aggregate was kept constant at …

Supplementary Cementitious Materials - PCA

Overview. Fly ash. Slag cement. Silica fume. Natural pozzolans. Reactions. Effects on concrete. Proportioning. This chapter will introduce the various supplementary cementitious materials, or SCMs, available for use in concrete and review their effects on fresh and hardened concrete.

ppt on use of stone dust as a fine aggregate

artificial fine aggregate used in concrete ppt. ppt on slag replacing natural aggregates . fine aggregate for concrete ppt - ellulnl. partial replacement of aggregates in concrete ppt Use of Iron Slag as Partial Replacement of Sand to Concrete coarse aggregates (123354 kg/m3) and water to cement ratio is 05 The other concrete mixtures were prepared with the iron slag replacing 10 %, 20 % and ...

Concrete aggregate : Iron and steel slag products : NIPPON ...

Blast furnace slag aggregates became a designated procurement item under the Green Purchasing Law in 2002, while electric arc furnace oxidizing slag aggregates were designated in 2005. These materials are highly regarded as environmental materials that can protect the environment by limiting exploitation of natural resources and reduce the ...