Effect of elevated temperatures on mechanical properties of lightweight geopolymer concrete
TLDR
In this paper, the effect of high temperatures on lightweight geopolymer concrete and lightweight ordinary concrete made of natural pumice and lightweight expanded clay aggregate (LECA) with the addition of trapped air was examined.About:
This article is published in Case Studies in Construction Materials.The article was published on 2021-12-01 and is currently open access. It has received 88 citations till now. The article focuses on the topics: Expanded clay aggregate & Compressive strength.read more
Citations
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Sustainable utilization of red mud waste (bauxite residue) and slag for the production of geopolymer composites: A review
Shaker M. A. Qaidi,Bassam A. Tayeh,Haytham F. Isleem,Afonso Rangel Garcez de Azevedo,Hemn Unis Ahmed,Wael Emad +5 more
TL;DR: In this article , a systematic review of the literature on the use of waste red mud and slag in the production of red mud-slag geopolymer (RM-SGP) is presented.
Journal ArticleDOI
Recycling of mine tailings for the geopolymers production: A systematic review
Shaker M. A. Qaidi,Bassam A. Tayeh,Abdullah M. Zeyad,Afonso Rangel Garcez de Azevedo,Hemn Unis Ahmed,Wael Emad +5 more
TL;DR: In this article , the authors discuss recent advances in the production of mine tailings-based geopolymers composites (MT-GPC) from waste and industrial by-products as a potentially sustainable construction material.
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Mechanical, physical and durability properties of activated alkali cement based on blast furnace slag as a function of %Na2O
Markssuel Teixeira Marvila,Afonso Rangel Garcez de Azevedo,Leandro Barbosa de Oliveira,Gustavo de Castro Xavier,Carlos Maurício Fontes Vieira +4 more
TL;DR: The use of activated alkali cements (AAC) as a replacement for Ordinary Portland cement (OPC) has become a viable alternative as mentioned in this paper due to the advantages of these materials, such as the possibility of using wastes or industrial by-products in their composition, contributing to environmental sustainability, in addition to the mechanical properties superior to OPC.
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Behavior of geopolymer concrete deep beams containing waste aggregate of glass and limestone as a partial replacement of natural sand
TL;DR: In this paper, the authors used a nonlinear finite element solution in ANSYS 11.0 to predict the behavior of reinforced geopolymer concrete deep beams with respect to the concrete mix.
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Effect of air agent on mechanical properties and microstructure of lightweight geopolymer concrete under high temperature
TL;DR: In this article , the authors investigated the possibility of producing an air agent from the powder slag of ferrosilicon (FSS), an industrial waste, for lightweight geopolymer concrete (LGC) synthesis.
References
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The coexistence of geopolymeric gel and calcium silicate hydrate at the early stage of alkaline activation
TL;DR: In this paper, the effects of ground granulated blast furnace slag (GGBFS) on the microstructure and mechanical properties of metakaolin (MK) based geopolymers were studied.
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A review: The comparison between alkali-activated slag (Si + Ca) and metakaolin (Si + Al) cements
TL;DR: In this article, the authors compare the properties of slag and metakaolin cements, including the general properties of metakaol and slag, hydration products reaction mechanisms, and the role of Ca and Al.
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Effect of elevated temperatures on geopolymer paste, mortar and concrete
Daniel Kong,Jay Sanjayan +1 more
TL;DR: In this article, the effect of elevated temperature on geopolymer paste, mortar and concrete made using fly ash as a precursor was investigated and it was shown that aggregate sizes larger than 10 mm resulted in good strength performances in both ambient and elevated temperatures.
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Influence of slag chemistry on the hydration of alkali-activated blast-furnace slag — Part I: Effect of MgO
TL;DR: In this article, the microstructure of three AASs with MgO contents between 8 and 13.5% were investigated and the formation of C(−−A)−S−H and a hydrotalcite-like phase was observed in all samples by X-ray diffraction (XRD), thermal analysis (TGA) and scanning electron microscopy (SEM) techniques.
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The effects of ground granulated blast-furnace slag blending with fly ash and activator content on the workability and strength properties of geopolymer concrete cured at ambient temperature
TL;DR: In this paper, the effect of different proportions of ground granulated blast-furnace slag and activator content on the workability and strength properties of fly ash based geopolymer concrete was evaluated.