Compressive and flexural strength are the crucial properties of a material. The recycled aggregate concrete (RAC) is comparatively lower than that natural concrete. Several factors, including replacement ratio, parent strength, water–cement water absorption, density aggregate, etc., affect RAC’s strength. studies have been performed to study impact these factors individually. However, it challenging examine their combined on RAC through experimental investigations. Experimental involve...

Rice husk ash (RHA) is obtained by burning rice husks. An advanced programming technique known as genetic expression (GEP) used in this research for developing an empirical multiphysics model predicting the compressive strength of RHA incorporated concrete. A vast database comprising 250 data points from extensive and consistent literature review. Different parameters such age, content, cement water amount superplasticizer aggregate content are inputs. closed-form equation solution was to...

The properties of cement composites with a partial replacement sand an organic aggregate from coconut shell are investigated. Due to the fact that endocarp increases its volume up 60–70% when swelling in water, which is many times greater than volumetric deformation matrix, possibility obtaining composition capable withstanding alternating deformations wetting and drying was investigated this work. When replacing 50% coarse fraction 5–20 mm, starting 5th–10th cycle wetting–drying,...

Generally, the concrete with higher strength appears to produce brittle failure more easily. However, use of mineral admixture can help in enhancing ductility, energy dissipation, and seismic designed concrete. This paper presents absorption capacity, stiffness degradation, ductility copper slag (CS) admixed reinforced fly ash (FA) beams subjected forward cyclic load. The load was applied servo-hydraulic universal testing machines 250 kN capacity. Twenty-four a size 100 mm × 150 1700 made CS...

The article is devoted to Academy of Construction for University Applicants distance course. course posted on university Distance Learning Portal (http://dl.spbstu.ru) based Moodle. a tool online marketing. main benefits students trained in this are analyzed.

The purpose of this research is to study the effects quarry rock dust (QRD) and steel fibers (SF) inclusion on fresh, mechanical, microstructural properties fly ash (FA) ground granulated blast furnace slag (SG)-based geopolymer concrete (GPC) exposed elevated temperatures. Such types ternary mixes were prepared by blending waste materials from different industries, including QRD, SG, FA, with alkaline activator solutions. multiphysical models show that binders can enhance mechanical GPC. In...

This study introduces a sophisticated anomaly detection system based on machine learning. The is specifically developed to enhance the dependability and safeguard security of electric transportation networks, with particular emphasis charging infrastructure for vehicles (EVs). Utilizing extensive datasets, research examines several facets stations, records, identified abnormalities, following maintenance measures. examination station demonstrates system’s versatility in accommodating many...

The motive of this study is to evaluate the machinability properties AZ31 Mg alloy in face milling operations. Depth cut, rate feed and speed cut are three input variables process, while surface roughness (Ra) tool nose radius deviation (dR) performance characteristics. For each with levels, decrease number experiments, an L9 orthogonal array (OA) Taguchi was employed which enables efficient approach for conducting a full-factorial design experiments. Selection optimal parameters process...

The application of multiphysics models and soft computing techniques is gaining enormous attention in the construction sector due to development various types concrete. In this research, an improved form supervised machine learning, i.e., multigene expression programming (MEP), has been used propose for compressive strength (fc'), splitting tensile (fSTS), flexural (fFS) sustainable bagasse ash concrete (BAC). training testing proposed have accomplished by developing a reliable comprehensive...

Abstract Experimental studies on the influence of oil shale fly ash additives thermal expansion, strength, shrinkage, and heat release concrete were carried out. The addition 30% over cement content increases expansion by 6 times. 40% 16 is due to high free calcium oxide (10%) in sulfuric acid anhydrite SO 3 (10.3%). forms a highly expanding hydrosulfoaluminate upon reaction with tricalcium aluminate an unlimited amount water. above significantly reduces shrinkage. If higher, then shrinkage...

Preplaced aggregate concrete (PAC) is prepared in two steps, with the coarse being initially laid down formwork, after which a specialised grout injected into it. To enhance properties of and to reduce emission CO2 produced during production cement, supplementary cementitious materials (SCMs) are used partially substitute ordinary Portland cement (OPC). In this study, 100 mm × 200 (diameter x height) PAC cylinders were cast 10 per cent substituted silica fume; along that, 1.5% dosage Macro...

The purpose of this work was to study the possibility neutralizing high-calcium fly ash expansion during hydration. object Berezovskaya GRES, which is capable independent setting and hardening. test in Le Chatelier molds showed that divergence indicator arms 90-100 mm 1 day after mixing with water. cracking could be completely prevented by silica fume addition an amount 42.9% weight ash. At same time, compressive strength specimens from ash-sand paste a ratio 1:5 at age 28 days 1.47 MPa....

The influence of the electrostatic precipitator ash “Zolest-bet” and silica fume on sulfate resistance Portland cement was studied. evaluation criteria were expansion, strength, density, appearance samples, hardened in a 5% Na2SO4 solution starting from 3 days age for 192 at temperature 20 °C 148 40 °C. mixture with additive had minimum expansion under action, fly greatest expansion. Zolest-bet pure water shrank by 0.19 mm/m end hardening period, it gave linear 0.23 after hardening. can be...

The endeavors to explore and map the dynamic terrain of cloud computing, designated as CloudVerse. Through a meticulous examination recent advancements emerging patterns in technologies, this study aims furnish comprehensive portrayal present state future trajectories computing. Utilizing blend literature review industry scrutiny, paper identifies pivotal domains innovation within CloudVerse, encompassing hybrid infrastructures, serverless computing models, edge paradigms, AI-driven...

This study investigates the incorporation of swarm robotics into control mechanism electric vehicles (EVs), introducing an innovative intelligent framework that utilizes concepts decentralized decision-making. The research entails a methodical inquiry encompasses design system architecture, creation model for robotics, modeling vehicle drive, integration with EV control, development algorithms and execution real-world tests. fleet cars, propelled by collective independent robotic entities,...

Shrinkage of concrete during hardening is a serious problem in attempts to maintain the integrity structures. One methods combating shrinkage compensating for it using an expansive agent. The purpose this work develop and study expanding agent concrete, including high-calcium fly ash calcium nitrate as expansion activator. content Ca(NO3)2 can be used regulate degree additive itself hydration and, accordingly, control shrinkage, thus obtaining shrinkage-free or concrete. Shrinkage–expansion...

This study investigates the use of reinforcement learning (RL) techniques as a dynamic control mechanism to enhance management energy storage in smart grid systems. The research aims optimize efficiency operations by analyzing collected data from different time intervals simulated scenario. An evaluation status reveals consistent upward trend quantity stored energy, with 30% cumulative growth across intervals. examination demand and supply indicates persistent insufficiency an average...

This study presents a novel Fuzzy Logic-Based Energy Management model that aims to optimize the incorporation of renewable energy sources into smart grids. The research used simulated data evaluate model's performance in important metrics, revealing significant improvements consumption energy, stability grid, dependability storage, and overall efficiency system. Logic Controller adjusts distribution response current inputs, leading 20% improvement usage energy. capacity adapt is crucial...

This work aimed to study the effect of a microfibrillated cellulose additive on strength, elastic modulus, heat release, and shrinkage mortar concrete. The dosage varies from 0.4 4.5% by weight cement. change in strength with an increase occurred wave-like manner. uneven character results also took place determination release shrinkage. In general, decreased at increasing dosage. showed greatest decrease concrete content 2%. practically differed little exotherm standard 1 1.5%. addition...

This article presents research findings on examination of quality paving elements. Were investigated and analyzed performance properties slabs following: accuracy geometric dimensions, appearance, compressive strength, frost resistance, water absorption abrasion. Based these results recommendations improving the current regulatory technical documentation are provided.

There is an experimental study of samples monolithic foam concrete “SOVBI” with a density 205 kg /m 3 (grade D200) for combustibility. The evaluation criteria are the following values combustion characteristics: temperature increment in furnace, duration stable flame burning, sample mass loss. results show concrete: furnace 2 °C, burning 0 s, and 24.4%. Thus, kg/m noncombustible material. It proposed to use other lightweight cellular concrete, as structural fire protection steel structures....