In the field of civil engineering, employing composite materials to reinforce reinforced concrete structures has become a highly common practice. However, this technology is not frequently used in pre-stressed constructions. This study dedicated show importance reinforcing beams with plate made by prposing an analytical model taking into account time effect on mechanical proporieties. The main finding demonstrate that using material tension normal stresses across cross beam section reduced...

Introduction/purpose: Utilizing composite materials to reinforce reinforced concrete structures is now a very prevalent practice in the field of civil engineering. However, prestressed construction does not usually use this method. The principal purpose present study extend beams by taking into account effect interfacial stresses concentration on global behavior such structures. Methods: A new analytical model suggested how changes RC beam's prestress affect interface stresses. polynomial...

Acknowledging the growing impact of nanotechnologies across various fields, this engaging research paper focuses on harnessing potential nano-sized materials as enhancers for concretes. The emphasizes strategic integration these entities to comprehensively improve strength and performance concrete matrixes. To achieve this, an analytical study is conducted investigate static behavior beams infused with different types clay nano-platelets (NC's), employing quasi-3D beam theory. leverages...

The utilization of recycled iron in durable concrete production has gained attention for enhancing sustainability and resource efficiency. Simultaneously, incorporating nanoparticles as supplementary cementitious materials (SCMs) offers significant benefits. Introducing nano-sized particles (Fe2O3) into the cement paste results a compact microstructure, improving strength, durability. In this study, we investigate bending behavior slabs reinforced with Fe2O3 using non-local quasi-3D shear...

Nanoparticles, by virtue of their amorphous nature and high specific surface area, exhibit ideal pozzolanic activity which leads to the formation additional C-S-H gel reacting with calcium hydroxide, resulting in a denser matrix. The proportions ferric oxide (Fe2O3), silicon dioxide (SiO2), aluminum (Al2O3) clay, interact chemically (CaO) during clinkering reactions, influence final properties cement and, therefore, concrete. Through phases this article, refined trigonometric shear...

The buckling of an axially loaded elastic composite beam with a nonlocal core or connection system is studied in this paper. the sandwich composed two Euler–Bernoulli beams interaction. This interaction physically based on Reissner's model three-parameters' function. energy equations are first presented, and differential rigorously obtained from variational principle. We show that can be expressed integral format, therefore, inducing character model. Furthermore, format given, leading to...

In recent years, many countries have been confronted with an extended period of drought, necessitating innovative water supply solutions for both human consumption and agricultural irrigation.In response, wastewater treatment plants (WWTPs) emerged as pivotal agents in recycling, catering to needs environmental considerations.These facilitate the transformation into potable or irrigation-ready water.Amidst array WWTP designs, "Continuous-Station" holds a distinctive position, featuring...

This article presents a comprehensive investigation into the thermomechanical analysis of glass powder as an additive in concrete. The efficient Eshelby's model is utilized to determine relevant composite properties, considering spherical shape powder. A higher-order shear deformation plate theory employed theoretically simulate reinforced concrete panel, ensuring accuracy and simplicity. Equilibrium equations are derived using virtual work concept, energy Hamilton's principle. Navier's...

Given their considerable specific surface area and amorphous characteristics, nanoparticles exhibit excellent pozzolanic activity, when undergoing a reaction with calcium hydroxide, this leads to the generation of denser matrix by promoting formation greater amount C-S-H gel, thereby enhancing strength durability concrete fortifying overall structure. Indeed, present study investigates comparative buckling free vibration analyses beams reinforced various types nanoparticles. For its...

Introduction/purpose: The aim of this study is to examine the buckling and free vibration behavior laminated composite plates reinforced with carbon nanotubes when various sources uncertainty are taken into account 1 main focus being existence porosity. Methods: A porous plate model developed using a high order shear deformation theory. Different configurations functionally graded aligned single-walled throughout thickness each layer investigated. effective properties materials evaluated...

Abstract External bonding of FRP plates or sheets has emerged as a popular method for strengthening reinforced concrete structures. Debonding along the FRP–concrete interface can lead to premature failure Shear and normal stresses (in thickness direction) at interfaces (referred interfacial shear transverse hereafter) have played significant role in understanding this debonding such hybrid Extensive experimental analytical analyses been undertaken investigate problem. Large discrepancies...

Le renforcement des structures en béton armé utilisant les matériaux composites est devenu une technique très répandue dans le domaine de la réparation et réhabilitation ouvrages existants. Cependant, décollement plaques par rapport à structure renforcée empêche profiter pleinement cette technique. L’analyse contraintes d’interface joue un rôle prépondérant compréhension du phénomène décollement. Dans ce travail, il question d’étudier poutre flexion, simplement appuyée plaque composite...