Novel hybrid binder concrete mixes with alkali-activated non-ferrous slag (NFS), either alone or in combination blast furnace (BFS), as partial replacement of Portland cement, and containing 50% recycled aggregates, were successfully manufactured. The compressive strength, carbonation resistance, chloride frost scaling, sorptivity coefficient, water penetration resistance thoroughly assessed. p...

In the present study, three-parameter one-dimensional vertical infiltration equation recently proposed by Poulovassilis and Argyrokastritis is examined. The includes saturated hydraulic conductivity (Ks), soil sorptivity (S), an additional parameter c; it valid for all times. c a fitting that depends on type of porous medium. characterized incorporation exact contribution pressure head gradient...

The lack of disposal facilities for waste tires from various vehicles is a major environmental and economic problem. Crumb rubber (CR) generated can be used to partially replace fine natural aggregates in self-compacted concrete (SCC), lowering sand usage protecting raw material resources. main objective this study summarize the influence CR as partial replacement on behavior SCC. For aim, 42 p...

Self-Compacting Concrete (SCC) is a special concrete that can flow easily across congested reinforcements. Also, it easy to work with and does not segregate. The present investigation aims at the design development of sustainable SCC employment industrial by-products such as Fly Ash (FA), Ground Granulated Blast Furnace Slag (GGBFS), Expanded Perlite Aggregate (EPA). Four mixes were developed a...

The present study examines the durability properties of Class 1 (50–75 MPa) high-performance concrete (HPC) blended with rice husk ash (RHA) as a partial replacement CEM II B-L, 42.5 N. Six HPC mixes were prepared RHA and used 5%, 10%, 15%, 20%, 25%, 30% alone are compared control mix having only II. binders (CEM RHA) investigated for particle size distribution (PSD), specific surface area (SSA...

Nanomaterial usage is an effective method to enhance the mechanical and durability properties of cementitious materials. Graphene Nanoplatelets (GNPs) are cost-efficient graphene-based nanomaterials that can exhibit graphene-like features. Although GNPs have been found improve properties, their effect on self-healing behavior materials, particularly Engineered Cementitious Composites (ECC), has...

Reutilizing industrial by-products and recycled concrete aggregates (RCA) to replace cement natural (NA) in is becoming increasingly important for sustainable development. Yet, experimental evidence needed prior the widespread use of this by construction industry. This study examines performance alkali-activated slag made with RCA reinforced steel fibers. Natural coarse were replaced RCA. Steel...

This study investigates the long-term (570 days) performance of alkali-activated slag (AAS) mortar exposed to combined wet-dry cycles and sodium sulphate solutions (i.e. 5 wt% 10 wt%). Physical mechanical characteristics AAS mortars visual appearance, compressive/flexural strength, mass change, capillary porosity, water sorptivity) as well mineralogical chemical parameters were determined using...

This study evaluates the performance of alkali-activated slag-fly ash blended concrete made with recycled aggregates (RCA) and reinforced steel fibers. Two blends ground granulated blast furnace slag-to-fly ratios 3:1 1:1 were used. Natural substituted RCA, while macro fibers 35 mm length aspect ratio 65 incorporated in RCA-based mixtures at various volume fractions. Fine form desert dune sand....

This research aims to assess the feasibility of mechanical strength and durability concrete containing 50% nickel slag a combination 15% 30% fly ash with water-cement ratio 0.25 0.45 in marine environment. Four types concrete, namely OPC-sand (C) as control OPC-50GNS (S), 15FA-50GNS (F1), 30FA-50GNS (F2) comparison were tested 100×200 mm cylindrical specimen. The results showed an increase pote...