Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Archives of Civil and Mechanical Engineering

1 2021

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Assessment of the bending bearing capacity of the GGBFS-based geopolymer concrete beams exposed to acidic environment

Mahdikhani Mahdi, Sarvandani Milad Hatamiyan

Archives of Civil and Mechanical Engineering

2021

Vol. 21, no. 4

417--436

Currently, ordinary Portland cement is used most of the time as a sticky material of the concrete produced for construction purposes. Unfortunately, the function of the prefabricated concrete made of Portland Cement against chemical factors such as acid attacks and sulfate attacks, raises concerns, because the grout of Portland Cement decomposes, being exposed to acids. Novel construction materials with a strength better than that of the ordinary Portland concrete are required, to be able to resist such corrosive factors. This essay presents an assessment of the strength of GGBFS-based geopolymer concrete samples against acid attacks. In this research, geopolymer concrete beams reinforced with steel and GFRP rebars, also the fabricated cubic concrete samples, underwent tests of mechanical properties, being exposed to acid environments with different pH levels of 4, 6 and 8. Beams reinforced with steel rebars proved to be of a higher strength compared with beams reinforced with GFRP. On an average, the forces applied on the beams reinforced with steel on day 90 and day 300 were, respectively, 14.47 and 14.78% higher than the forces applied on the beams reinforced with GFRP. Compared with the beams reinforced with GFRP, those reinforced with steel revealed to be of a higher resistance when exposed to the environmental changes.