Construction and Building Materials, Год журнала: 2024, Номер 451, С. 138824 - 138824
Опубликована: Окт. 28, 2024
Язык: Английский
Case Studies in Construction Materials, Год журнала: 2025, Номер unknown, С. e04717 - e04717
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Construction and Building Materials, Год журнала: 2024, Номер 457, С. 139375 - 139375
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
3
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Construction and Building Materials, Год журнала: 2024, Номер 431, С. 136437 - 136437
Опубликована: Май 11, 2024
Язык: Английский
Процитировано
2
European Journal of Environmental and Civil engineering, Год журнала: 2024, Номер 29(2), С. 295 - 308
Опубликована: Авг. 13, 2024
The environmental consequences of Portland cement (PC) manufacturing have prompted the exploration alternative binders, such as alkali activation blast furnace slag (BFS), which is generated a byproduct during extraction iron. While alkali-activated (AAS) binders some benefits over regular PC they also suffer from disadvantages significant drying shrinkage. study investigated impact Na dosage and curing conditions on mortar (AASM). consistency specimens was tested for fresh, hardened properties, conducted. optimum were selected. In second stage, 0.1% 0.2% glass nylon fibers added to selected mortar. Consistency, mechanical, durability properties tests conducted fiber mortars. results showed that increasing content increased compressive flexural strengths AASM specimens. Thermal provided high strengths, whereas addition reduced water absorption shrinkage value by 26.82 % with 0.2 volume compared without fibers.
Язык: Английский
Процитировано
1
Journal of Cleaner Production, Год журнала: 2024, Номер unknown, С. 144236 - 144236
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
1
Опубликована: Янв. 1, 2024
The potential for using alkali-activated concrete (AAC) as a sustainable substitute Portland cement (PC) is topic of ongoing research interest. However, widespread application this alternative restricted to precast applications and non-structural elements due lack data regarding its long-term characteristics. uncertainties in the raw material composition, reportedly low tensile strength fly ash-based AAC, relevant standard codes practice further inhibit wider industrial usage AACs. Fiber inclusions enhance properties traditional PC concrete. Moreover, replacement ash with ground granulated blast furnace slag (GGBS) overcomes need thermal curing Hence, present study aimed at investigating mechanical ambient-cured fiber-reinforced (FRAAC) GGBS sole precursor. Four different types fibers, viz., steel (SF), polyvinyl alcohol (PVAF), polypropylene (PPF) glass (GF) are used reinforcements AAC. Tests compressive ( ), splitting (fsp) flexural (fr) conducted FRAAC containing varying fiber contents 0.1% 0.3%. findings demonstrated that additions do not have any noticeable influence on relative plain mix, fsp fr FRAACs were enhanced by up 32% 29%, respectively. formation hardened calcium aluminosilicate matrix evolution fiber-matrix bonding over time was evident from scanning electron microscopy (SEM) images. related molecular bonds period 7-d 360-d identified through mineralogical chemical analyses. Furthermore, validate environmental sustainability, life cycle assessments conducted. AACs exhibited least 41% lesser impacts than ecosystem incorporating GF had about 10% greater mix.
Язык: Английский
Процитировано
0
Magazine of Concrete Research, Год журнала: 2024, Номер 76(23), С. 1370 - 1383
Опубликована: Июнь 26, 2024
The effects of steel, polyvinyl alcohol, polypropylene and glass fibre reinforcements on alkali-activated concrete (AAC) were investigated by conducting various mechanical strength tests. dosage was 0.1–0.3% volume AAC. Furthermore, the acidic exposure fibre-reinforced concretes (FRAACs) examined immersing samples in 10% v/v solutions hydrogen chloride, sulfuric acid or nitric for 28 days. It found that additions improved compressive flexural up to 13% 27%, respectively, while modulus elasticity significantly 52%. Acid attack tests AAC specimens demonstrated be highly detrimental chemical properties AACs. loss FRAAC after 50% less than plain glass-fibre-reinforced AACs resistant attack, whereas steel-fibre-reinforced had resistance. These findings further validated scanning electron microscopy, X-ray diffraction Fourier-transform infrared spectroscopy, which showed changes microstructure subjected environments. Overall, durability
Язык: Английский
Процитировано
0
Engineering Fracture Mechanics, Год журнала: 2024, Номер 314, С. 110696 - 110696
Опубликована: Дек. 9, 2024
Язык: Английский
Процитировано
0
Construction and Building Materials, Год журнала: 2024, Номер 451, С. 138824 - 138824
Опубликована: Окт. 28, 2024
Язык: Английский
Процитировано
0