Abstract The current study aimed to investigate the influence of expired hardened cement blended with ground granulated blast furnace slag on bond, microstructure, and durability high-strength concrete (HSC). Five mixes are prepared; first mix is taken as a control, remaining four used experimental blends. HSC characteristics evaluated by compressive, flexural, splitting tensile, tests. Further...

The present study focused on developing Alkali Activated Fine Aggregate (AAFA) by palletization method. AAFA was manufactured using Ground Granulated Blast Furnace Slag (GGBS) and alkali activator solution at ambient conditions. Sodium hydroxide of six molarity sodium silicate to ratio 2.5 used. AACA's properties are similar Natural except for flakiness elongation index. water absorption Abrasi...

The utilization of recycled aggregates and various industrial by-products is considered a sustainable strategy in the concrete industry. In this study, effect maximum size coarse aggregate cementitious binder content on fresh hardened properties self-compacting was investigated. Self-compacting concretes with sizes 9.5 mm, 12.5 19 mm were prepared at water-to-binder ratios 0.39, 0.42, 0.45, res...

This investigation aimed to improve great early geopolymer mortar strengths under various parameters with binder proportions reduce the use of cement since OPC production process leads high emissions CO2. Hence, solve this problem, alternative materials were used. In research, metakaolin (MK) and ground-granulated blast-furnace slag (GGBFS) waste utilized mixed together sodium hydroxide alkalin...

This paper presents a study on use of alkali activated bottom ash (BA) and ground granulated blast furnace slag (GGBS) blend in paver blocks. A preliminary effort on alkali-activated bottom ash, blast furnace slag based geopolymer (BA-GGBS-GP) mortar with river sand was carried out to identify the suitable mix for paver block. Several mixes were proposed based on the combination of BA-GGBS. The...

Supplementary cementitious materials (SCMs) have been widely used to replace cement in recent years order reduce the burden of on environment. In this study, fly ash (FA) and ground-granulated blast furnace slag (GGBFS) were as long-term 40%, 50% 60% replacement explore mechanical strength different superplasticizers (SPs) under high substitution amounts. The results study showed that, terms na...

Ground granulated blast furnace slags (GGBS) are glassy by-products from iron production that commonly used as supplementary cementitious materials in blended cements. The glass structure of seven industrial GGBS was investigated by Raman and nuclear magnetic resonance spectroscopies. complex composition the induced multiple analytical challenges. Under usual continuous excitation, signal maske...

This paper represents the parametric effects on slump and compressive strength of aluminosilicate based Geopolymer concrete using by Taguchi method. A total nine mix proportions were considered to evaluate effect sodium hydroxide (NaOH) solution, Solution/Binder (SB) ratio percentage superplasticizer. Results indicated that highest 165 mm 28 days 68.37 MPa was obtained for with superplasticizer...