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recycling of geopolymer concrete sciencedirect

recycling of geopolymer concrete sciencedirect

Recycling of geopolymer concrete - ScienceDirect

2015-12-30  The available literature on concrete recycling with respect to GPC is limited only to the use of recycled concrete aggregate produced from OPCC concrete debris in a geopolymer concrete matrix , . GPC is a relatively new material with a currently slow adoption rate and thus very little GPC is expected to be available in short term for recycling.

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Recycling of geopolymer concrete - ScienceDirect

Recycling is an effective strategy for dealing with geopolymer concrete debris. Abstract Due to its considerably lower embodied carbon and making use of industrial by-products including fly ash and ground granulated blast-furnace slag, geopolymer concrete (GPC) is considered as a sustainable alternative to Portland cement (OPC) concrete.

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Recycled geopolymer aggregates as ... - ScienceDirect

2020-3-10  1. Introduction. Geopolymer concrete (GPC) has been highlighted as a sustainable alternative to Portland cement concrete (PCC), which is blamed commonly for its contribution to a number of important global sustainability challenges including greenhouse gas emissions and depletion of natural resources .Geopolymer concrete has considerably lower, by a factor of 5 times, embodied energy and ...

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Recycling of geopolymer waste: Influence on geopolymer ...

2016-3-15  The geopolymer zone extends only to 40% and 25% of crushed geopolymer for substitution and addition respectively. For the last set ( 20,S1 G y ), with a Si/K molar ratio of 0.47, consolidated materials are feasible up to 50% of substitution of metakaolin by crushed geopolymer

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Performance of geopolymer concrete ... - ScienceDirect

2019-5-20  The replacement ranged from 0% to 30% in a slag based geopolymer concrete at 28 and 60 days. Download : Download high-res image (221KB) Download : Download full-size image; Fig 7. Compressive Strength for replacement of both fine and coarse aggregates of slag based geopolymer concrete with crumb rubber at both 28 and 60 days.

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Lightweight geopolymer concrete ... - ScienceDirect

2013-12-1  The results showed that the lightweight geopolymer concrete with 28-day compressive strength of 1.0–16.0 MPa and density of 860–1400 kg/m 3 could be made. It can be used as lightweight geopolymer concrete for masonry wall and partitions.

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Production of geopolymeric binder from ... - ScienceDirect

2012-10-1  Highlights Studied geopolymer binder produced from waste concrete powder (WC) and fly ash (FA). Inclusion of WC increases the UCS of geopolymer binder until 50% WC content. Low Ca semi-crystalline CSH gel coexists with the geopolymer gel. Ca + incorporated into the geopolymer network acts as charge balancing cation. WC can be recycled and used together with FA to produce geopolymer

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Eco-friendly recycled polypropylene matrix ... - ScienceDirect

2020-5-1  Civil construction wastes have been incorporated into polymers for recycling as novel engineering composites. In the present work eco-friendly composites with recycled polypropylene (rPP) matrix incorporated with geopolymer concrete waste particles, wither plain (GCW) or surface-modified with oleic acid (AGC) were investigated.

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Recycling of geopolymer concrete - ResearchGate

2021-8-1  Request PDF Recycling of geopolymer concrete Due to its considerably lower embodied carbon and making use of industrial by-products including fly

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The Complete Recycling of Waste Concrete to Produce ...

The available literature on recycling of geopolymer concrete is currently limited to application of recycled geopolymer aggregates as coarse aggregates for new geopolymer concrete.

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Recycling of geopolymer concrete - ResearchGate

2021-8-1  Request PDF Recycling of geopolymer concrete Due to its considerably lower embodied carbon and making use of industrial by-products including fly

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Recycling waste materials in geopolymer concrete ...

2019-1-3  The widespread industry adoption of geopolymer concrete has the potential to positively contribute to environmental sustainability in both the industrial and construction sectors, through the recycling of waste materials, and the reduction in carbon emissions. Extensive research has been conducted into geopolymers during the past two decades, demonstrating the potential for the alkali ...

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Effects of mixing duration on ... - sciencedirect

The high-density geopolymer concrete mix design is presented in Table 2.A binary blend of 65% fly ash and 35% GGBFS, by mass, was used as the binder. To preserve the modulus ratio (M s) at 1.5, alkali metal activators were proportioned, while the Na 2 O per cent was kept at 5.5 with a water/binder ratio of 0.43. The water content is calculated considering the total water in the system ...

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The Complete Recycling of Waste Concrete to Produce ...

Abstract. This paper investigates complete recycling and utilization of waste concrete, both the aggregates and the fines from crushing, to produce new concrete through geopolymerization. Based on previous studies and considering the workability of the new geopolymer concrete (GPC), 25% waste concrete fines (WCF), and 75% class-F fly ash (FA ...

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Experimental Study of Geopolymer Concrete Produced from ...

This paper investigates complete recycling of waste concrete to produce new geopolymer concrete (GPC). Specifically, GPC was produced using waste concrete fines (WCF) and class-F fly ash (FA) together with mixed sodium hydroxide (NaOH) and sodium silicate (Na 2 SiO 3) solution as the geopolymer binder and waste concrete aggregates (both coarse and fine) as the aggregate.

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(PDF) Physical Properties of GeoPolymer Concrete with ...

2021-7-29  Both cement concrete (CC) and geopolymer concrete (GPC) pavers were casted with varying the dosage of polymeric fibre addition (O.5, 1 1.5% to the volume fraction of volume of concrete) and its ...

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Experimental Study on Recycling of Waste Concrete Based

2018-10-11  Zhu Z., Gu S., Tang Z., Song L. (2019) Experimental Study on Recycling of Waste Concrete Based on Geopolymer Technology. In: Zhan L., Chen Y., Bouazza A. (eds) Proceedings of the 8th International Congress on Environmental Geotechnics Volume 1.

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(PDF) State of the Art on the Application of Waste ...

2021-7-1  Geopolymer concrete (GPC) is an innovative and environmentally friendly concrete that hardens through the reaction between aluminosilicate waste

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(PDF) Geopolymer as underwater concreting material: A review

Potential of Geopolymer as a binder due to its green technology to replace Ordinary Portland cement (OPC) as underwater concreting material in terms of self-compacting ability and durability.

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Effect of freeze-thaw cycles on the mechanical behavior

2021-7-30  Geopolymer concrete maintains the compressive strength better after freeze-thaw cycles than Portland cement concrete. The setting times of geopolymer paste becomes much faster when the temperature is decreased from 20 to 0 C. Microcracks is observed in the concrete structure after the freeze-thaw cycles. article info Article history:

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Effects of mixing duration on ... - sciencedirect

The high-density geopolymer concrete mix design is presented in Table 2.A binary blend of 65% fly ash and 35% GGBFS, by mass, was used as the binder. To preserve the modulus ratio (M s) at 1.5, alkali metal activators were proportioned, while the Na 2 O per cent was kept at 5.5 with a water/binder ratio of 0.43. The water content is calculated considering the total water in the system ...

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The Complete Recycling of Waste Concrete to Produce ...

The available literature on recycling of geopolymer concrete is currently limited to application of recycled geopolymer aggregates as coarse aggregates for new geopolymer concrete.

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Eco-sustainable Geopolymer Concrete Blocks Production

2017-3-4  Available online at sciencedirect ScienceDirect Florence “Sustainability of Well-Being International Forum”. 2015: Food for Sustainability and not just food, FlorenceSWIF2015 Eco-sustainable Geopolymer concrete blocks production process Antonella Petrilloa, Raffaele Cioffia, Claudio Feronea, Francesco Colangeloa, Claudia Borrellia,*

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Experimental Study on Recycling of Waste Concrete Based

2018-10-11  Zhu Z., Gu S., Tang Z., Song L. (2019) Experimental Study on Recycling of Waste Concrete Based on Geopolymer Technology. In: Zhan L., Chen Y., Bouazza A. (eds) Proceedings of the 8th International Congress on Environmental Geotechnics Volume 1.

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REINFORCED AND PLAIN GEOPOLYMER CONCRETE

influencing long-term properties of the geopolymer concrete. Two geopolymer concrete mixes are the test subject for this article - plain geopolymer and reinforced geopolymer with 1% waste steel fibers that have been subjected to creep and shrinkage tests. Waste steel fibers are the by -product of the car tire recycling process . The steel

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(PDF) FRESH PROPERTIES OF GEOPOLYMER CONCRETE

2021-7-27  Geopolymer Concrete is a type of concrete that is made by reacting aluminate and silicate bearing materials with a caustic activator. Commonly, waste materials such as fly ash or slag from iron ...

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(PDF) Geopolymer foam concrete: An emerging material for ...

Geopolymer foam concrete: An emerging material for sustainable construction. Download. Related Papers. Lightweight concretes of activated metakaolin-fly ash binders, with blast furnace slag aggregates. By J Ivan Escalante. New synthesis method for the production of coal fly

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Clean Production and Properties of Geopolymer Concrete ...

2020-6-24  Contents lists available at ScienceDirect. Journal of Cleaner Production ... . inspired several researchers to explore new methods of recycling such wastes with an aim of increasing the available landfill space ... Standard Test Method for Density, Relative Density (Specific Gravity), Chennur Jithendra, R., 2017. Geopolymer concrete with self ...

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Performance of Geopolymer Concrete Reinforced with FRP ...

2021-7-20  Out of this five beams,one beam is control beam with normal cement concrete and the remaining four are geopolymer concrete beams with Alkali

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Performance of steel wool fiber reinforced geopolymer concrete

The highest compressive strength of geopolymer concrete is by ad dition of 3 % steel fibers which. is 65.72 MPa, followed by steel fiber addition of 1 % which is 61.27 MPa, 5 % steel fiber ...

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