Akademik Veri Yönetim Sistemi
INNOVATIVE INFRASTRUCTURE SOLUTIONS, cilt.11, sa.3, 2026 (ESCI, Scopus)
This paper presents a study investigated ways to enhance the mechanical properties of reinforced concrete beams (RCBs) and reduce their failure under high loading conditions by employing self-compacting concrete (SCC) and ferrocement (FC). A variable replacement level based on Cement Kiln Dust (CKD) was used in the SCC mixture as an eco-friendly alternative material for cement; these levels were 0%, 2.5%, 5%, 7.5%, 10%, and 12.5%. The fresh properties and hardened properties of SCC were analyzed. Further, layers of FC were placed over the RCB samples to understand their effect under flexural load conditions. The results indicated that an increase in CKD content led to reduction in SCC flowability, an increase in viscosity, a reduction in passing ability, and an improvement in segregation resistance. In hardened SCC concrete, increases in CKD content led to reduced dry density, compressive strength, flexural strength, and modulus of elasticity, but increased absorption and porosity. Notwithstanding this fact, samples containing low percentages (2.5% and 5%) displayed increased splitting tensile strengths and impact energy absorption capacity. In RCB samples, the addition of either one or two layers of FC demonstrated substantial improvement in their flexural properties, represented by the first cracking stress, ultimate flexural load (11-15% enhancement), and ductility properties in conditions containing CKD as well as CKD-free conditions. RCBs failed under flexural loads; their first cracks occur at 36-46% of the ultimate loading capacity. The addition of three layers of FC was found to substantially upgrade beam stiffness by 84% for CKD0-3 samples and 27% for CKD12.5-3 samples, while ductility was significantly reduced. All samples failed due to flexural performance; initially, cracks occurred in all samples between 36 and 46% of ultimate load.