Flexural Behavior of Reinforced High-Performance Concrete Beams Made with Steel Slag Coarse Aggregate

Abstract

In recent years, an emerging technology termed high-performance concrete (HPC) has become popular in construction industry. The constituent materials of HPC depend on the desired characteristics and the availability of suitable local economic alternatives. One of these alternatives is steel slag waste material. It is an industrial by-product waste particles resulted from reinforcing steel bars manufacture, its production is very huge; total quantity produced from all steel rebars manufacture factories in Egypt is nearly million tons/year. HPC made with steel slag aggregate (SSA) is considered as green concrete, using of steel-slag as a coarse aggregate increases the probability of consuming such large accumulations of slag (in HPC industry) which they represent as a waste and polluted material in environment. A total of eight under, balanced and over reinforced concrete beams were fabricated and tested. RC beams were made with HPC having compressive strength of 58.1 and 75.6 MPa and tensile reinforcement ratio in the range of 0.90 to 4.3%. Data presented concentrated on the chemical, physical, and mechanical properties of the used new material (SSA) and the flexural behavior of reinforced high-performance concrete beams made with steel slag coarse aggregate (RHPC-SSA) beams. It was observed that the RHPC-SSA beams can give satisfactory structural performance according to the American and Egyptian Building Codes.

Flexural performance of reinforced concrete beam made with waste foundry sand as fine aggregate

“…Figure 8 (a)-(e) demonstrates the cracking pattern of all RC beams that have been tested at failure. After failure, each beams revealed distinctive flexural behavior and no horizontal cracks noticeable at the level of reinforcement, indicating that no bond failure occurred (Zaki et al, 2011). At the commencement of the test, when the load was increasing linearly, there were no cracks.…”

“…Numerous investigations on the flexural behavior of reinforced concrete beams manufactured with alternate CA have been conducted (Mohammed et al, 2017;Raju and Dharmar, 2019;Zaki et al, 2011;Seara-Paz et al, 2018;Yang et al, 2020;Sunayana and Barai, 2018). In this research paper, very few literature studies about flexural behavior of RC beams made with alternative CA has been reported.…”

“…Beams made with SS aggregate showed good ductile behavior up to 3.6% tension reinforcement IJSI 12,5 ratio. Concrete with SS aggregates is capable to attain its full capacity of strain under flexural loading (Zaki et al, 2011).…”

Mechanical Behavior Analysis of High Strength Concrete Beams in Architectural Design: Simplified Calculation Method of Flexural and Shear Bearing Capacity

“…At this juncture, the shear force shifted increasingly onto the longitudinal reinforcement, resulting in a marked increase in the number and width of cracks in the shear span section, as well as in deflection values. Continual loading up to the beam's maximum bearing capacity was accompanied by distinct sounds, culminating in the main diagonal crack forming the final failure surface and localized concrete crushing, ultimately leading to the specimen's failure [27,28].…”

Bond Stress Capacity of Steel Reinforcing Bars Embedded in Graphene-Enhanced High-Performance Concrete

“…Numerous studies have been conducted on material characteristics of high-performance concrete (HPC). Recently, use of industry products to construct reinforced HPC has garnered a lot of interest among researchers [1,2]. Effective and reliable force transfer between steel reinforcing bars and concrete is necessary for reinforced concrete buildings to be designed as efficiently as possible [3].…”