Role of lime, fly ash, and slag in cement pastes containing recycled ...

20/03/2019 · In our study, fly ash and blast furnace slag were blended with recycled concrete fines and Porland cement in an attempt to increase hydraulicity of the pastes. Because recycled concrete can reduce pH of the mixture, small portions of lime were also added in order to increase the alkalinity and promote proper formation of hydration product , , . The impact of individual additives on …

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Use of RECYCLED AGGREGATES In CONCRETE- A Paradigm Shift

The utilization of recycled aggregate is particularly very promising as 75 per cent of concrete is made of aggregates. In that case, the aggregates considered are slag, power plant wastes, recycled concrete, mining and quarrying wastes, waste glass, incinerator residue, red mud, burnt clay, sawdust, combustor ash and foundry sand.

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Electric Arc Furnace Slag as Coarse Recycled Aggregate for Concrete …

01/10/2015 · EAF slag is a by-product of steel production, currently partially re-used in asphalt concrete [ 9 ]. However, huge quantities of this material are still landfilled. Different from other recycled aggregates, EAF slag has very good mechanical properties: it is a crushed product with black colour stone appearance and a rough surface texture.

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Slag Cement - ASTM International

May 16, 2013 — Preparing an Environmental Product Declaration for Slag Cement. Copyright © ASTM ... material, for a recycling or a manufacturing process.

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Using Slag Cement in Sustainable Construction

Making Concrete Greener with Slag Cement Slag cement is a byproduct of iron production in a blast furnace. It is a hydraulic cement that can replace between 20 to 80 percent of the portland cement in concrete (depending on application, see Table 1) and helps makes concrete even greener. Slag cement contributes the following sustainability ben-

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Recycling of modified MSWI ash-mix slag and CMP sludge as a cement …

Modified municipal solid waste incinerator (MSWI) ash-mix slag and chemical mechanical polishing (CMP) sludge are recycled together to partly replace cement in cement mortars. The main objective of this study is to fully reuse scrubber ash

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(PDF) Properties of sustainable concrete containing fly ...

slag, (4) 70% replacement of cement with blast furnace slag and (5) 25% replacement of cement with fly ash and 25% replacement with blast furnace slag. Recycled concrete aggregate was investigated in

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Slag Cement: A Valuable SCM to add to Your Concrete Toolkit

As a recycled material, slag cement makes a significant contribution to sustainable construction. Its beneficial reuse in concrete mixes saves virgin raw materials, ...

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The Mechanical Properties of Recycled Coarse Aggregate ...

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, 10%, 15%, 20%, and 25% ...

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Advances in slag recycling and reuse - UKEssays.com

In Portland concrete, the most common type of cement, consist of 90% clinker and with recycling of slag becoming significant it was considered for an alternative. The addition of granular or powder slag increase the properties creating a better performing structure.

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Slag Substitution as a Cementing Material in Concrete ... - MDPI

Sep 4, 2019 — the substitution of the cement by slag, which contributes to the ... Views on Effect of Recycled Aggregates on Concrete Compressive Strength.

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Making stronger concrete with 'sewage-enhanced' steel slag

Apr 06, 2020 · The study, "Recycling steel slag from municipal wastewater treatment plants into concrete applications—A step towards circular economy," with RMIT School of Engineering co-authors Professor ...

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Salt slag recycled by-products in high insulation alternative ...

Oct 5, 2019 — The salt slag recycled by-product was reused as alternative aerating agent ... Cement & Concrete Composites (IF 6.257) Pub Date : 2020-08-17 ...

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Influence of Fineness of Recycled Glass Waste and Slag on ...

Nov 30, 2017 — Cement and concrete industry is responsible for 5% of the worldwide man-made CO2 emission to environment. Therefore, the demands of ...

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Tarmac | Slag Aggregates - Aggregates | Asphalt | Cement

Blast furnace slag can also be used to make Ground Granulated Blast-furnace Slag (GGBS) which is used as a cement replacement in concrete. Blast Furnace Slag Formed during the manufacture of iron, molten blast furnace slag is cooled and processed in three ways to form slag aggregates for different applications.

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