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.
Highlights
With evergrowing population and with expanding urban centers, increased levels of construction are expected in the forthcoming years in Egypt as a developing country
The water absorption for steel slag aggregate (SSA) is 1%, while it was 1.7% for dolomite aggregate (DA); the reduction in absorption characteristics of SSA can be attributed to the impervious nature of SSA compared with DA, which can lead to more impermeable concrete when SSA is used
It was generally observed that the flexural behavior of steel slag concrete is comparable to that of other types of natural aggregate concretes, and this investigation gives encouraging results for steel slag to be used as coarse aggregate in the production of structural concrete especially for the construction of lowcost houses because the steel slag particles are very cheap compared to the other traditional coarse aggregates
Summary
With evergrowing population and with expanding urban centers, increased levels of construction are expected in the forthcoming years in Egypt as a developing country. HPC has found widespread application, its production is still limited in many countries because suitable concrete aggregate such as river sand, gravel or hard crushed aggregates are either not available or are available only in limited quantity. The use of the following byproducts has been proposed as aggregate for concrete: construction rubber, vitrified flooring, glass, plastic, the remains of asphalt agglomerates and metallurgical or steel making slag [2]. All of these byproducts, as well as others not mentioned, have been tested with varying degrees of success. The most promising proposal is the use of iron and steel slag due to the qualities of this material
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
