Abstract:

In this study, it is aimed the comparison of the effects on the fresh, mechanical and durability properties of self-compacting mortar (SCM) incorporating waste glass powder (WGP) and ground granulated blast furnace slag (BFS). Self-compacting mortars (SCM) containing waste glass powder and blast furnace slag as mineral admixtures were produced by using a constant water/binder ratio of 0.40, a constant slump-flow diameter of 24.5±0.5 cm and a high-range-water reducing-chemical-admixture (super plasticizer). In the first stage, reference SCM was produced without the addition of mineral admixture. In this study consisting of two groups, in the first group, WGP mixtures were designed by using WGP in the ratios 5%, 10%, 15% and 20% instead of cement. However, in the second group, BFS mixtures were produced by using WGP and BFS instead of 20% of cement. Thus, the second group mixtures were obtained by replacing in the ratios by 5%, 10%, 15% and 20% of BFS with WGP. A total of 9 different mixes were manufactured. Mini-slump flow diameter and mini-v funnel tests were performed to determine the fresh properties. In order to obtain the mechanical properties, compressive and flexural strength and ultrasonic pulse velocity tests were measured on 3rd, 7th, 28th and 56th days, respectively. In addition, durability properties were specified via water sorptivity and rapid chlorine permeability tests performed on 28th and 56th days. It has been observed that WGP used in place of cement in SCM improved the fresh, mechanical and durability properties of SCM. In the second group in which the comparison of the properties for the glass powder and slag, it was determined that ACT is more advantageous than YFC. Fresh, mechanical and durability properties of SCMs have improved with increased the amount of glass powder used instead of blast furnace slag.

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