Journal of Advanced Sciences and Engineering Technologies

Nanomaterials for Soil Stabilizatioin: A Review

2025-10-31T19:18:03+00:00

Weak soils, characterized by their low strength and high compressibility, pose significant challenges to construction projects. Traditional methods of soil stabilization often involve the use of lime or cement, which can be expensive and environmentally unfriendly. In recent years, nanomaterials have emerged as a promising alternative for improving the geotechnical properties of weak soils. This review study comprehensively investigates the application of various nanomaterials, including carbon nanotubes, nano clay, and nano-silica, to stabilize weak soils. The mechanisms of interaction between nanomaterials and soil particles are discussed, along with their effects on soil properties such as strength, stiffness, and permeability. Additionally, the environmental implications and economic feasibility of using nanomaterials for soil stabilization are considered. Based on the findings of this review, it is concluded that nanomaterials offer a viable and effective approach to enhance the geotechnical performance of weak soils and metastable soils such as gypseous soil. Further research is recommended to optimize the use of nanomaterials in practical applications and to address any potential challenges associated with their implementation.

Synthesis and characterization of bioactive glass Nanoparticles by sol-gel method. Review Article.

2025-10-02T18:28:32+00:00

Bioactive glass nanoparticles (BGNs) are potentially significant in the biomedical field because of their bioactive, biocomposite, and versatile nature of applications in various therapeutic fields. This review discusses the synthesis of BGNs through the sol-gel method, which is a low-temperature process, offering the opportunity to achieve a controlled composition of the BGNs for their application in medicine. The morphological, structural, and chemical characterization methods are explained to show how these properties affect the bioactivity of BGN and its fitness for a particular application. BGNs have been effectively used in bone regeneration, drug delivery, antibacterial treatments, and wound healing due to their ability to combine with bone tissue, release therapeutic ions, and deliver the drug accordingly. It also points to future possibilities of BGNs in more sophisticated areas, such as cancer treatment and bioimaging, and calls for more design in strengthening their applications in healthcare-related fields. This evaluation highlights the role of BGNs in promoting the progress of biomedical science and substantiates the possibility of providing a substantial contribution to personalized and regenerative medicine.

Flexural behavior of one-way voided reinforced concrete slabs under the influence of uniformly distributed static loads

2025-10-02T18:28:45+00:00

One-way voided reinforced concrete slabs are one of the types of slabs widely used in residential and industrial buildings due to their cost-effectiveness, lightweight, and ease of implementation.

This study aims to investigate the behavior of one-way voided reinforced concrete slabs under the influence of uniformly distributed static loads. It included the casting of 6 specimens of slabs with dimensions (40001000180) mm, five of which are voids with proportions of (4.36%, 8.72%, 13%, 17.44%, and 21.8%), in addition to a sixth specimen that is solid without voids representing the reference slab.

Through the tests, it was revealed that the first cracking load of voids slabs gradually decreases with an increase in the voids' ratio, with the load value decreasing by a percentage ranging from 3.94% to 13.43% compared to the solid (reference) slab.

The deflection values also decreased by a percentage ranging from 1.47% to 6.39% when voids were present. Furthermore, the presence of voids led to a reduction in both the maximum load and the resulting deflection, with the load value decreasing by a percentage ranging from 3.18% to 30.44%, and the deflection value decreasing by a percentage ranging from 1.35% to 23.64% compared to the reference slab. It was also observed that the presence of voids in the slabs resulted in a decrease in the ductility index, with a decrease ranging from 0.8% to 19.9%.

Mechanical Behavior of Aluminum Tubular Columns Filled with Steel Fiber Reinforced Concrete, "An Experimental Study”

2025-10-22T10:05:29+00:00

Hollow aluminum tubular columns filled with concrete present a viable composite system by utilizing aluminum's excellent corrosion resistance and adequate yield strength. This study looked at how concrete-filled aluminum tubes (CFATs) performed structurally under axial loading when reinforced with steel fiber reinforced concrete (SFRC). Five specimens, each measuring 1000 mm in height and having square hollow aluminum parts of 100 x 100 x 3 mm, were made and put through axial compression testing. Concrete was mixed with steel fibers at fractions of volume of 0.5%, 1.0%, and 1.5% to assess the impact of the steel fibers on ductility, stiffness, and load-bearing capacity. The results showed that adding steel fibers increased stiffness and peak load by 13.7% to 74.1% and 15.6% to 45.6%, respectively. Furthermore, ductility improved significantly, with increases ranging from 9.1% to 42.4%. The optimal performance was achieved at a fiber content of 1%. Higher dosages resulted in diminished structural efficiency, likely due to fiber clustering and reduced homogeneity. Notably, in specimens without fibers, tearing at peak load was observed, attributed to lateral strain-induced tensile stresses in the aluminum shell. The inclusion of steel fibers effectively mitigated this issue by limiting lateral expansion and enhancing confinement.