Inicio  /  Infrastructures  /  Vol: 8 Par: 11 (2023)  /  Artículo
ARTÍCULO
TITULO

Enhancing Reinforced Concrete Beams: Investigating Steel Dust as a Cement Substitute

Ali Jahami    
Hussein Younes and Jamal Khatib    

Resumen

This research undertook an extensive examination of the ramifications of integrating steel dust as a partial substitute for cement within reinforced concrete beams. The investigation encompassed an assessment of various facets, encompassing the workability of the concrete mixture, alongside crucial mechanical properties such as compressive strength, split tensile strength, flexural strength, ultrasonic pulse velocity (UPV), and elasticity modulus. The findings unveiled a notable reduction in workability as the proportion of steel dust increased within the mixture, with a consequential substantial impact on the elasticity modulus. Notably, compressive strength exhibited an enhancement at a 10% replacement of cement yet exhibited a decline with higher degrees of cement substitution. The inclusion of steel dust led to the formulation of adjusted equations pertaining to split tensile and flexural strength characteristics within the mixture. Remarkably, the incorporation of 10% steel dust yielded an increase in ductility. Conversely, at a 30% steel dust inclusion level, ductility diminished alongside a reduction in the maximum load-bearing capacity. In light of these findings, it is imperative to exercise prudence when considering the utilization of steel dust as a cement substitute, particularly when approaching or exceeding the 10% replacement level threshold. Further comprehensive research is imperative to acquire a comprehensive understanding of its implications and its susceptibility to potential corrosion concerns.

 Artículos similares

       
 
Omnia R. AbouEl-Hamd, Amr M. I. Sweedan, Bilal El-Ariss and Khaled M. El-Sawy    
The strengthening of steel beams using hybrid fiber-reinforced polymers (HFRPs) has gained enormous attention over the last decades. Few researchers have investigated the effectiveness of the fastening techniques without a bonding agent to overcome the u... ver más
Revista: Buildings

 
Rabeb Ayed, Salwa Bouadila, Safa Skouri, Laura Boquera, Luisa F. Cabeza and Mariem Lazaar    
By enhancing the thermal properties of cement-based building materials, energy consumption and carbon dioxide (CO2) emissions related to space conditioning in buildings can be alleviated. This study aims to present cement-based composites reinforced by t... ver más
Revista: Buildings

 
Akongnwi Nfor Ngwa, Birendra Chaudhary, Helio Matos and Arun Shukla    
Experiments were conducted to investigate the dynamic buckling behavior of underwater hybrid composite tubes. The study focused on roll-wrapped hybrid layered glass-carbon fiber epoxy composite shells with a six-layer quasi-isotropic layup configuration.... ver más

 
Linjian Wu, Zhouyu Xiang, Han Jiang, Mingwei Liu, Xueli Ju and Wenxiao Zhang    
Soda residue soil (SRS) is a man-made engineering foundation soil formed by soda residue; it is mainly distributed in coastal areas in China. SRS is rich in a variety of corrosive salts, among which the concentrations of chloride ions are about 2?3 times... ver más

 
Zhipeng Zhai, Wei Guo, Yanhui Liu, Shuang Zou and Fulin Zhou    
In this paper, a new precast self-centering rocking shear wall system (PSCRSW) mainly composed of precast reinforced concrete (RC) wall, V-shaped steel brace and pre-pressed disc spring friction damper (PDSFD) are proposed to enhance the seismic resilien... ver más
Revista: Buildings