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- W2086564356 abstract "Abstract This paper presents the results of a study on self-compacting concrete (SCC) made with stainless steel reducing slag (SSRS). Two kinds of SSRS, being different in the surface area (e.g., 1766- and 7970 cm 2 /g), were employed as filler and cement substitution, respectively. A series of six mixing proportions with a change of SSRS-cement ratio replacing ordinary Portland cement (OPC) from 0% to 50% (increment 10%) were developed for experimental work. The workability, observed via slump flow, slump-flow time ( T 500 ), V-funnel time, and Box-filling tests, and the setting time test were involved for freshly-mixed SCC. The hardening and durability parameters such as compressive strength, ultrasonic pulse velocity (UPV), rebound hammer (RH), water absorption, electrical resistivity, and sulfate resistance were estimated, accordingly. The testing results indicate that the workability and viscosity can be satisfactory without the use of viscosity modifying agent as usual. The slump flow increased when 20% or less SSRS substituted for OPC; both the T 500 and V-funnel flow time are prolonged for SSRS-based mixtures. Moreover, compressive strength is reduced gradually as the SSRS ratio increases; and SCC made with 30% or less SSRS achieves the required strength of Grade 30 concrete. Also, a strength predictive model, modified from the existing one has been successfully proposed (error range of ±5%). In addition, relationships between compressive strength and UPV, RH number, and electrical resistivity have been successfully established with a high degree of correlation. Finally, a replacement ratio of 10% SSRS could provide the highest sulfate resistivity, evaluating by weight-loss test." @default.
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- W2086564356 date "2015-05-01" @default.
- W2086564356 modified "2023-09-25" @default.
- W2086564356 title "Greener self-compacting concrete using stainless steel reducing slag" @default.
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- W2086564356 doi "https://doi.org/10.1016/j.conbuildmat.2015.02.081" @default.
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