This research aims to shed light on the effect of steel fiber shape, length, diameter, and aspect ratio mechanical properties slurry infiltration reinforced concrete (SIFCON). study comprised casting testing three groups SIFCON specimens with 6% volume fraction. The first group was micro fiber, other by hook end fibers, while last mixing two shape as hybrid (3% +3% fiber). Silica fume used a partial replacement (10%) weight cement. 3.7% super plasticizer make liquid enough penetrate through...

Background and Aim: Approximately 95 percent of people with a history acne may have post-acne scars. It can be challenging to treat Punch elevation microneedling are new, simple effective options for treatment these types We aimed compare between punch PRP versus in atrophic scars split face study.Patients Methods: This is comparative study conducted on 15 patients 19 32 years post boxcar icepick Left side each patient treated by elevation, after four weeks both sides platelets rich plasma...

Lightweight concrete (LWC) is a long-standing development in the area of construction materials. LWC has become increasingly important for sustainable due to its reduced susceptibility cracking. However, when exposed extreme temperatures during fires, can lose compressive strength and ductility. This study investigates performance lightweight expanded clay aggregate (LECA) T-beams elevated temperatures. The research also focuses on use an engineered cementitious composite with basalt...

Hibiscus sabdariffa, a plant grown in tropical and subtropical regions of Africa. It contains natural pigments that may work as an alternative to synthetic dyes are expensive harmful the environment. The goal this study was assess how well aqueous ethanolic extracts sabdariffa can stain normal abnormal tissue compared H&E terms quality, clarity, contrast. Dried leaves were used prepare both extracts. applied samples, results traditional (H&E) method. Tissue staining evaluated for...

Botnet-based Distributed Denial of Service (DDoS) attacks are considered as the main concerns and problems today's Internet. The damage these very serious since number computers involved in is huge distributed worldwide. However, many protocols such Domain Name System (DNS) have several security vulnerabilities nowadays that utilized by botnet attackers. amplification most popular Internet which require robust hardware software for assurance. In this paper, we provide an overview...

The bio-plastic composite has attracted the attention of people who work in academic and industrial fields due to several advantages this as compared with conventional plastic composites. However, modification natural filler used bio-composites usually needs a before use. In current work, chemical on Cyperus Odoratus (CY) using different sodium hydroxide (NaOH) concentration at 1, 3, 6 9 wt.% were investigate effect tensile properties Polypropylene/Cyperus (PP/CY) extrusion injection molding...

This study includes detailed information on the mechanical characteristics of hardened concrete mix for normal (NSC) and reactive powder (RPC) after exposure to crude oil products. Two types products (kerosene gas oil) were investigated a period 180 days. The experimental program consisted three sets NSC RPC specimens; curing all specimens 28 days 2 dry in air, first set was immersed kerosene second same age, while third left air as reference (cured normally tested at age days). results...

Concrete is the central pile for infrastructure that maintains civilisation and human life. The concrete industry faces many challenges, including improving mechanical properties, eco-friendliness, durability. In this context, present study focuses on evaluating modelling themechanical properties of engineered concrete, namely slurry-infiltrated fibrous (SIFCON). main experiments will be devoted to measuring failures slabs made from SIFCON under two loading systems, static impact systems....

In this research, unsaturated polyester/kenaf fiber (UP/KF) composites was prepared by using hand lay-up process. The effect of surface treatment kenaf on mechanical properties filled polyester were studied. Different concentrationsof stearic acid (SA) applied, i.e. 0, 0.4, and 0.8 wt%. Fourier transform infrared (FT-IR) spectra shows high intensity the peak around 3300-3400 cm-1, which is attributed to hydrogen bonded O-H stretching. However, treated with elimination group vanished. This...

SIFCON is a special type of fiber reinforced concrete (FRC) with an unattached matrix that gives the composite important tensile properties and, due to its high content, also has distinctive and unique ductility energy absorption properties. Higher temperature resistance one most parameters affecting durability service life material. In this research, compression strength elastic modulus Slurry Infiltrated Fiber Concrete (SIFCON) were tested both before after exposure temperatures. Two fire...

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The bond strength at the interface zone between two concrete sections plays a critical role in enhancing long-term durability, ensuring that both materials perform homogenously. Ensuring compatibility interfaces repair and is one of most challenging aspects constructing composite systems. Despite various studies, comprehensive understanding engineered cementitious (ECC) bonding mechanism still limited. objective this research to identify interfacial properties lightweight (LWC) with varying...

Internet Protocol version six (IPv6) was designed and developed to solve the problem of exhaustion current address. IPv6 also introduces a number benefits including address auto-configuration mechanism which allows host self-generate its own without presence DHCPv6 server. It is one mechanism, among others, provided by Neighbor Discovery (NDP). However, protocol does not have built-in security messages were exchanged verification thus leaving vulnerable exploitation malicious nodes. A node...

This paper looks at the effect of hollow ratio and cross-section shape on behavior slurry infiltrated fiber concrete (SIFCON) columns normal strength (NSC) columns. The present study comprised casting testing two column specimens groups; SIFCON group NSC (reference group). Every consists six which three are circular others square. Each has an identical square with same area. These have different ratios (β = 0, 25% 50%) for 33%) used in this was straight micro steel a 6% volume fraction. test...

This research aims to investigate and evaluate a reactive powder concrete (RPC) cast using economical materials. Its mechanical properties were investigated evaluated by studying the effects of different cement silica fume contents locally steel fibers aspect ratios as reinforcement for this concrete. A compressive strength about 155.2MPa, indirect tensile 16.0MPa, modulus elasticity 48.7GPa, flexural 43.5MPa, impact energy 3294.4kN.m abrasion loss 0.59% have been achieved reinforced RPC...

This research aims to shed light on the fire flame effect some mechanical properties of SIFCON samples, such as compressive strength, flexural strength and modulus elasticity comparing results with CEN design curve CEB. Higher temperature resistance is one most important parameters affecting durability service life material. study comprised casting testing specimens 6% fiber volume before after exposure elevated temperatures. Two duration 1 and2 hours were investigate. In addition room...

Abstract This article is an experimental study of the efficiency after fire exposure slurry infiltrated fiber concrete (SIFCON) columns. The aim this paper to present a comprehensive effect on stiffness, ductility, and energy absorption capacity axially loaded SIFCON columns inspect hollow ratio cross section shape dissipation ability, stiffness features post‐fire behavior these Hybrid fibers were used cast with 6% (3% hooked end + 3% straight micro fiber). results showed that cube...

The effect of burning by fire flame on the behavior and load carrying capacity rectangular reinforced concrete (RC) rigid beams is addressed in this paper. Reduced scale beam models (which are believed to resemble as much possible field conditions) were suggested. Five end restrained specimens casting testing. subjected temperatures ranging from (25-750°C) at age 60 days, two temperature levels 400 750°C chosen with exposure duration 1.5 h. (2250×375×375 mm) (length× width× height...

This article investigates the effect of flexural reinforcement and ultrafine steel fiber on punching shear reactive powder concrete (RPC) slabs with different thicknesses. Ten RPC two normal-strength (NSC) were cast tested dimensions 520×520 mm. According to test parameters, these arranged into three sets. These parameters percentage fiber, presence/absence reinforcement, thickness slab. All slab specimens simply supported along four edges concentrically loaded by a square plate 70×70 The...

This study has two main aims; firstly, investigating the behavior of slabs that are strengthened with different types reinforcements and Slurry-Infiltrated Mat Concrete (SIMCON) laminates, having dimensions thicknesses subjected to static dynamic (impact) loads. Secondly, development a non-linear finite element (FE) model simulate tested utilizing ABAQUS/Standard package. The modeling NSC either SIMCON or steel plates involves using three-dimensional solid elements partially integrated...