Journal ArticleDOI
Effect of Concrete Waste on Compressive Strength and Microstructure Development of Ceramic Geopolymer Pastes
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In this article, the authors present the effects of concrete waste incorporating dolomite aggregate on ceramic-based manufacturing processes and show that concrete waste can pollute and damage the environment.Abstract:
Ceramic industry generates a large amount of wastes, which pollutes and damages the environment. This paper presents the effects of concrete waste incorporating dolomite aggregate on ceramic-based ...read more
Citations
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Development of normal and very high strength geopolymer binders based on concrete waste at ambient environment
TL;DR: In this paper, the authors evaluated the reliability of a new algorithmic mix design method that relies on pre-targeting ratios of SiO2/Al2O3, Na2O/SiO2 and liquid/solid of CW precursor powder and sodium silicate and sodium hydroxide alkaline reagents.
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Geopolymers made of recycled brick and concrete powder – A critical review
TL;DR: An overview of published articles about geopolymers containing recycled brick powder (RBP) and recycled concrete powder (RCP) during the last decade (2012 to 2021) is presented in this paper .
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Synthesis and optimization of binary systems of brick and concrete wastes geopolymers at ambient environment
TL;DR: In this article, the use of binary system of concrete waste (CW) and red clay brick waste (BW) to develop geopolymer binders with appropriate fresh properties and high mechanical strengths at ambient curing was investigated.
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Development of optimized binary ceramic tile and concrete wastes geopolymer binders for in-situ applications
TL;DR: In this paper, the authors explored the development of an optimized binary geopolymer system of tile waste (CTW) and concrete waste (CW) for more sustainable use in in-situ applications.
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Behavior of alkali-activated pozzocrete-fly ash paste modified with ceramic tile waste against elevated temperatures and seawater attacks
Ahmed S. Ouda,Mahmoud Gharieb +1 more
TL;DR: In this paper, the authors explored durable and thermal stable geopolymer-based alkaline activation of pozzocrete-fly ash (PFA) doped with different ratios of ceramic tile waste (CW) compared to their plain mixtures under normal conditions.
References
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Journal ArticleDOI
Microanalysis of calcium silicate hydrate gel formed within a geopolymeric binder
TL;DR: In this article, it is shown that the properties (e.g., size, elemental composition) of the geopolymeric and CSH gels forming simultaneously, and the reactivity of the calcium precipitates along the interfacial region, will hold the key in reformulating a new generation of concrete that matches the durability of ancient concrete.
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Calorimetric study of alkaline activation of calcium hydroxide–metakaolin solid mixtures
Santiago Alonso,Ángel Palomo +1 more
TL;DR: In this paper, a series of metakaolin mixes were activated in 1:1 proportion, with different sodium hydroxide concentrations: 5, 10, 12, 15 and 18 M at 45°C during 24 hours.
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Alkaline Activation of Metakaolin: Effect of Calcium Hydroxide in the Products of Reaction
TL;DR: In this article, metakaolin (MK) and (MK + Ca(OH) 2 ) mixes were activated with 5M and 12M NaOH solutions and cured at 45°C.
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Thermal evolution of metakaolin geopolymers: Part 1 – Physical evolution
TL;DR: In this paper, the effect of different cations (sodium and potassium) on the physical evolution of geopolymeric materials derived from metakaolin is investigated for a range of specimens with Si/Al ratios between 1.15 and 2.15.
Journal ArticleDOI
Properties and microstructure of alkali-activated red clay brick waste
L. Reig,Mauro Mitsuuchi Tashima,M.V. Borrachero,José Monzó,Christopher R. Cheeseman,Jordi Payá +5 more
TL;DR: In this paper, the properties and microstructure of alkali-activated cement pastes and mortars produced using red clay brick waste were investigated, and it was shown that the type and concentration of acid activator can be optimised to produce mortar samples with compressive strengths up to 50MPa after curing for 7 days at 65°C.