Journal ArticleDOI
High-temperature behavior and mechanical characteristics of boron waste additive metakaolin based geopolymer composites reinforced with synthetic fibers
Abdullah Celik,Kemalettin Yilmaz,Orhan Canpolat,Mukhallad M. Al-mashhadani,Yurdakul Aygörmez,Mucteba Uysal +5 more
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TLDR
The use of synthetic fibers positively affected high-temperature behavior of metakaolin-based geopolymer composites in terms of strength loss, weight loss and UPV loss as mentioned in this paper.About:
This article is published in Construction and Building Materials.The article was published on 2018-10-30. It has received 117 citations till now. The article focuses on the topics: Geopolymer & Metakaolin.read more
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Fabrication and engineering properties of concretes based on geopolymers/alkali-activated binders - A review
TL;DR: In this paper, a comprehensive review on the fabrication and engineering properties of a variety of geopolymer/alkali-activated concretes is presented, including probable source materials, alkaline activator requirements, curing conditions, compressive strength, elastic performance, tensile strength, flexural strength, fracture performance, bonding strength, high temperature resistance, abrasion resistance, porosity and water absorption, frost resistance, chemical attack resistance, drying shrinkage, and carbonation resistance.
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Geopolymers in construction - recent developments
TL;DR: A comprehensive overview of past studies on geopolymers synthesised from various precursors, the factors affecting geopolymerisation process, their microstructural characteristics as well as mechanical, chemical, thermal and environmental properties of geopopolymers is presented in this paper.
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Elevated temperature, freezing-thawing and wetting-drying effects on polypropylene fiber reinforced metakaolin based geopolymer composites
TL;DR: In this article, metakaolin-based geopolymer samples produced by substitution of silica fume and colemanite waste up to 20% were subjected to high-temperature effects at 300, 600, 900 °C, the wetting-drying effect of 5, 15 and 25 cycles and freezing-thawing effect of 56 and 300 cycles.
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Macroscopic and microscopic analyses on mechanical performance of metakaolin/fly ash based geopolymer mortar
TL;DR: In this article, the macroscopic and microscopic analyses on the mechanical performance of metakaolin (MK)/fly ash (FA) based geopolymer mortar were carried out through compression tests, bending tests, and phase analysis, to illustrate the mechanisms of the interaction between fiber and nano additives.
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Influence of wetting-drying curing system on the performance of fiber reinforced metakaolin-based geopolymer composites
Ahmet Ali Arslan,Mucteba Uysal,Arin Yilmaz,Mukhallad M. Al-mashhadani,Orhan Canpolat,Furkan Şahin,Yurdakul Aygörmez +6 more
TL;DR: In this article, the mechanical and durability properties of geopolymer composites prepared using metakaolin and colemanite binding materials with basalt and polyvinyl alcohol fibers were investigated under the influence of curing systems.
References
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The Role of Inorganic Polymer Technology in the Development of ‘Green Concrete’
TL;DR: In this paper, the potential position of and drivers for inorganic polymers (“geopolymers”) as an element of the push for a sustainable concrete industry are discussed.
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Characteristics of basalt fiber as a strengthening material for concrete structures
TL;DR: In this paper, the applicability of basalt fiber as a strengthening material for structural concrete members through various experimental works for durability, mechanical properties, and flexural strengthening was investigated, and the results showed that two layers of the basalt fibre sheets were thought to be better strengthening scheme.
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Comparative performance of geopolymers made with metakaolin and fly ash after exposure to elevated temperatures
TL;DR: In this article, the effect of elevated temperatures on geopolymers manufactured using metakaolin and fly ash of various mixture proportions was investigated. And the results showed that the fly ash-based geopolymer has large numbers of small pores which facilitate the escape of moisture when heated, thus causing minimal damage to the polygonal matrix.
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Synthesis and mechanical properties of metakaolinite-based geopolymer
TL;DR: In this article, the effect of concentration of NaOH solution on the mechanical and chemical properties of the metakaolinite-based geopolymer was investigated by means of X-ray diffraction, scanning electron microscopy (SEM) and infrared spectrometry (IR).
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Physical evolution of Na-geopolymer derived from metakaolin up to 1000 °C
TL;DR: In this article, the effect of nominal Si/Al on the processes and mechanisms of thermal shrinkage and weight loss throughout constant heating of Na-geopolymers was explored by use of dilatometry, thermogravimetry, nitrogen porosimetry and use of different constant heating rates.