Evaluation of slag/fly ash based geopolymer concrete with steel, polypropylene and polyamide fibers

Kuranlı, Ömer Faruk; Uysal, Mücteba; Abbas, Mele Tidjani; Çoşgun, Turgay; Niş, Anıl; Aygörmez, Yurdakul; Canpolat, Orhan; Al-mashhadani, Mukhallad M.

doi:10.1016/j.conbuildmat.2022.126747

Cited by 72 publications

(24 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…13, the 0.6%-0.8% polyvinyl alcohol fiber and 1.0%-2.0% nano-SiO 2 can enhance the geopolymer durability to the greatest extent, and the residual compressive strength can reach 57.3 Mpa-58.8 MPa after 25 freeze-thaw cycles [18]. The strength of slag fly ash base geopolymer prepared with polypropylene, steel fiber and polyamide fiber does not change significantly after 250 cycles, indicating its excellent durability [12]. The strength loss of basalt fiber reinforced metakaolin base geopolymer is small after 90 freeze-thaw cycles [83], and after 180 freeze-thaw cycles, the compressive strength of the geopolymer with 0.8-1.2% basalt fiber increases while the flexural strength decreases [39].…”

Section: Freezing-thaw Resistancementioning

confidence: 97%

“…The drying shrinkage value of fly ash base geopolymer added with steel fiber is in the range of 264-297 microstrain, that of fly ash base geopolymer added with polypropylene fiber ranges 394-424 microstrain [12], and that of the matrix can be minimized by adding 0.6% polypropylene fiber to the geopolymer [57]. Given that basalt fibers promote the development of C-S-H, the addition of this fiber to the geopolymers can reduce the drying shrinkage of the matrix,.…”

Section: Drying Shrinkagementioning

confidence: 98%

“…Crystal water and gel water will not be frozen because of its small pore, while only the free water with capillary pores will freeze at a negative temperature. The resistance against geopolymer can be effectively improved by reducing the porosity and improving the compactness of the structure [12]. Reproduced from [18], with permission from [Publisher] The pure fly ash base polymer is destroyed after 50 freezing-thawing cycles, but the addition of 0.1% carbon nanotubes and 2% polyvinyl alcohol fiber withstands 175 freezing-thawing cycles [78].…”

Section: Freezing-thaw Resistancementioning

confidence: 99%

See 2 more Smart Citations

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progressd

Qin

Yan

Zhou

et al. 2022

Preprint

View full text Add to dashboard Cite

Geopolymer concrete shares similar mechanical properties with ordinary Portland cement (OPC) concrete, and is even provided with better performances in high temperature and high corrosion circumstances. However, geopolymer binder is still subject to the disadvantages of large shrinkage and high brittleness, which greatly limit its application. Fiber reinforcement is widely used in various geopolymer systems to overcome the brittleness issue, but retains the high strength. Over the past 10 years, a significant advance has been made in the research of fiber reinforced geopolymers in terms of toughening efficiency and durability improvement. This paper, as a mini review, focuses on three types of fibers, i.e., inorganic fiber, natural fiber and synthetic fiber, in geopolymers, and their specific effects on compressive, flexural and tensile strengths, fractural toughness, shear strength and durability including shrinkage, chemical and freezing-thaw resistances. The recement understanding of bonding mechanism and fiber-geopolymer interface are also discussed, and knowledge gaps and future work challenges are correspondingly pointed out.

show abstract

Section: Freezing-thaw Resistancementioning

confidence: 97%

Section: Drying Shrinkagementioning

confidence: 98%

Section: Freezing-thaw Resistancementioning

confidence: 99%

See 1 more Smart Citation

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progressd

Qin

Yan

Zhou

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Within the measures to reduce greenhouse gas emissions from the cement industry, they focus on improving the thermal efficiency of the kilns to avoid burning more fuel than necessary [3]. On the other hand, physical and chemical methods of CO2 absorption are used, for example, in the case of commercially available amine solutions, they have a maximum CO2 absorption capacity of up to 320 TN/day, which is less than a third of the emissions produced by a 500 MW plant, so they are not viable due to the high cost that it represents [4].…”

Section: Introductionmentioning

confidence: 99%

“…Today there are also industrial products such as ecological cements added with slag, limestone and pozzolana that, by using less fuel in their preparation, can reduce emissions by up to 30% [3].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Mechanical Evaluation of Geopolymeric Mortars Reinforced with Alpaca Wool Fibers

et al. 2022

View full text Add to dashboard Cite

Physical and mechanical properties of fly ash‐based geopolymer with disposable medical mask reinforcement

Zhang,

Li,

Shen

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

A tremendous amount of the nonbiodegradable microplastic waste has been generated after the outbreak of COVID‐19 by the widespread use of single‐use personal protective equipment, especially disposable medical masks (DMMs). This has caused harm to the health and safety of human beings and various organisms. Finding a way to properly deal with these single‐use medical wastes has become an urgent problem. In this paper, an innovative way was explored to use DMMs in geopolymer (GP). The physical properties, mechanical strength, and resistance to high temperatures (200–800°C) of the composites were investigated. The findings of the study revealed that DMMs had negligible influence on resistance to high temperatures, but showed a positive influence on enhancing the compressive and flexural strengths of GPs at ambient temperature. The optimum DMMs content was 0.4 wt%, at which the compressive and flexural strengths of the GP composites were enhanced by 5.8% and 22.68% compared with the pure GP, respectively. The same polypropylene (PP) fiber amount increased compressive and flexural strengths by 7.49% and 9.76%, respectively. This thus confirmed that DMMs can be sustainably utilized in green building materials, playing a role as PP fibers toughening and contributing to the effective management of waste plastics.

show abstract

Evaluation of slag/fly ash based geopolymer concrete with steel, polypropylene and polyamide fibers

Cited by 72 publications

References 32 publications

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progressd

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progressd

Synthesis and Mechanical Evaluation of Geopolymeric Mortars Reinforced with Alpaca Wool Fibers

Physical and mechanical properties of fly ash‐based geopolymer with disposable medical mask reinforcement

Contact Info

Product

Resources

About