Industrial engineering

Centrifugal concrete products are manufactured using specific technology that changes the concrete proportion during consolidation. The bleeding of water reduces the water-to-cement ratio and increases the compressive strength of concrete. This affects the strength of the concrete determined on conventional casted cylinders, centrifuged hollow cylinders, and drilled cores from piles.

11p visarada 28-04-2025 1 1   Download

A comprehensive numerical study was conducted in this study to evaluate the effects of construction technology factors including curing temperature, initial temperature of fresh concrete mixture, type of formwork, type of cement, and cement content on controlling thermal cracking in mass concrete.

18p visarada 28-04-2025 0 0   Download

In this work, a reduced order isogeometric model is proposed to analyze the dynamic behavior of carbon nanotube-reinforced composite plates. In which, the mechanical properties of the material are functionally graded through the plate thickness employing four distributions of carbon nanotubes.

14p visarada 28-04-2025 0 0   Download

The paper aimed to identify and evaluate crane safety risk causes as well as groups of causes in the Vietnamese construction industry. The paper evaluated from the perspective of various related people involved in crane activities, namely drivers, managers, and workers.

15p visarada 28-04-2025 0 0   Download

This study addresses these issues by using recycled lightweight aggregates (RLWA) from waste polystyrene plastic as an alternative for coal bottom ash in the production of lightweight composites (LWC) incorporating ternary binder materials of cement, fly ash, and ground granulated blast-furnace slag.

15p visarada 28-04-2025 0 0   Download

The increasing amount of incineration ash raised significant environmental concerns, particularly regarding waste disposal and pollution. To address these issues and promote sustainable development, this study explored the production of terrazzo tiles using a fine aggregate of waste incineration bottom ash (WIBA) and a ternary binder of cement, fly ash, and hydrated lime.

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This paper aims to enhance computational performance for behavior prediction of tri-directional functionally graded plates using ensemble learning methods such as random forest, extreme gradient boosting, and light gradient boosting machine. Furthermore, the effectiveness of these methods is verified by comparing their results with those of artificial neural networks.

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This paper develops a calculation process for PT endogenous demand with respect to social costs in motorcycle-dominated mixed transport systems, based on the total social cost of public transport in previous research. The incremental elasticity analysis is used to estimate the endogenous passenger demand for dedicated PT technologies.

14p visarada 28-04-2025 0 0   Download

In this study, we conducted experiments to produce PVA granules that (i) have good biomass adhesion, withstand hydraulic shear force due to aeration, and settle quickly; (ii) perform wastewater treatment in column SBR configuration as a moving-bed biomass carrier, and (iii) prove the potential to a commercial production scale.

15p visarada 28-04-2025 0 0   Download

The Program Evaluation and Review Technique (PERT) is a popular scheduling technique that takes advantage of the Beta distribution to present uncertainty in activity durations. This study presents an advanced PERT method with an improved Bayesian updating and improved assumed prior distributions, which better represent real-world projects.

16p visarada 28-04-2025 0 0   Download

In this research, the proposed formulas determine the buckling coefficient as well as the local critical stress for I-shaped steel beams, accounting for the flange-web interaction when the flange-thickness to web-thickness ratio changes.

13p visarada 28-04-2025 0 0   Download

This study investigates the compressive performance and mechanical behavior of concrete filled steel tubular (CFST) columns constructed with high strength materials under various compression loading scenarios.

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This study presents an experiment on the impact of externally bonded carbon fiber-reinforced polymer (CFRP) sheets in strengthening large openings in two-way reinforced concrete (RC) slabs.

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This study investigated the effect of nano-CaCO3 content on the hardness (H) and Young’s modulus (E) at the interfacial transition zone (ITZ) surrounding fibers and ultra-high performance concrete (UHPC). Nano-CaCO3 was incorporated at varying contents from 1% to 4% by weight of cement.

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This paper is dedicated to the study of geometrically nonlinear behaviour of variable thickness functionallygraded plates subjected to uniaxial compressive forces. The plate’s geometry in this study could have either uniform thickness or symmetrical parabolic-form thickness.

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In the design and calculation of stormwater drainage systems, the design rainfall intensity plays a crucial role and is widely used in runoff calculations. Due to the influence of local climatic factors, the selection of probability distributions for rainfall frequency analysis and the methods used to determine parameters for empirical equations result in a variety of equations compared to traditional Rainfall Intensity-Duration-Frequency curves.

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This study investigates the free vibration behavior of porous metal foam plates using the Quasi-3D refined plate theory. We consider three types of pores across the plate thickness: uniform, symmetric, and asymmetric distributions.

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This study focuses on the characteristics of the hydrodynamic regime and sediment transport along the entire coast of Ben Tre province as well as the impact of spatial arrangement of protection solutions on local hydrodynamics and sedimentation.

21p visarada 28-04-2025 0 0   Download

The heating, ventilation, and air conditioning (HVAC) system consumes a lot of electricity in the building to meet the demand for thermal comfort. The energy recovery ventilator (ERV) has been used in commercial, industrial, and residential buildings to save energy consumption for HVAC systems. In this study, we investigated the efficiency of ERV systems in different construction climate zones in Vietnam and the energy consumption of the sample primary school.

11p visarada 28-04-2025 0 0   Download

This paper presents MOEA/D-EpDE XGBoost, a novel multi-objective optimization (MOO) algorithm designed for efficient and accurate design optimization of nonlinear inelastic steel truss structures.

11p visarada 28-04-2025 0 0   Download