Effect of High Temperature on Properties of Bricks Using Granulated Blast-Furnace Slag as Aggregate Replacement
作者： Hanan A. El Nouhy
DOI: 10.4028/WWW.SCIENTIFIC.NET/KEM.600.227
关键词: Ultrasound pulse 、 Compressive strength 、 Materials science 、 Ground granulated blast-furnace slag 、 Curing (chemistry) 、 Composite material 、 Dry weight 、 Absorption of water 、 Normal weight
摘要: This research investigates the influence of high temperature on properties bricks containing non-ground granulated blast-furnace slag (GBFS) as fine aggregate replacement. Replacement percentages were 0%, 25% and 50% by dry weight aggregates. The manufactured exposed to 200°С, 400°С, 600°С, 800°С for a constant duration two hours after 28 days curing. Tests conducted according both Egyptian Standard Specifications (ESS) American Society Testing Materials (ASTM) in order determine compressive strength, absorption percentage, oven-dry weight, ultrasound pulse velocity. Also, loss was performed. Compressive strength limit regarding load-bearing units met mix 1 at all tested temperatures. Mixes 2 3, resulted that satisfied requirement temperatures ranging from room 600°С.Compressive obtained mixes 3 requirements non-load bearing 800°С. control normal when various till 600°С. At 800°С, yielded light medium bricks, respectively. There significant reduction mass comparing with corresponding concerning three mixes. Results showed it is feasible partially replace GBFS even are subjected elevated temperature.
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