Effect of Silica Fume and Slag on Compressive Strength and Abrasion Resistance of HVFA Concrete

Autor:	Hosam El-Din H. Seleem, Amr F. Shaheen, Alaa M. Rashad
Rok vydání:	2014
Předmět:	Materials science Structural material Silica fume Abrasion (mechanical) Ocean Engineering law.invention Portland cement Compressive strength law Ground granulated blast-furnace slag Fly ash Composite material Curing (chemistry) Civil and Structural Engineering
Zdroj:	International Journal of Concrete Structures and Materials. 8:69-81
ISSN:	2234-1315 1976-0485
DOI:	10.1007/s40069-013-0051-2
Popis:	In this study, portland cement (PC) has been partially replaced with a Class F fly ash (FA) at level of 70 % to produce high-volume FA (HVFA) concrete (F70). F70 was modified by replacing FA at levels of 10 and 20 % with silica fume (SF) and ground granulated blast-furnace slag (GGBS) and their equally combinations. All HVFA concrete types were compared to PC concrete. After curing for 7, 28, 90 and 180 days the specimens were tested in compression and abrasion. The various decomposition phases formed were identified using X-ray diffraction. The morphology of the formed hydrates was studied using scanning electron microscopy. The results indicated higher abrasion resistance of HVFA concrete blended with either SF or equally combinations of SF and GGBS, whilst lower abrasion resistance was noted in HVFA blended with GGBS.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::236c507f6d93f134288ccb4b8e90a3ca https://doi.org/10.1007/s40069-013-0051-2 Zobrazit plný text záznamu Full text from SpringerLink