Khaled Aldhufri

Novel Nano-Chemical Additives for Reducing Carbon Emissions During Cement Mixing and Hydration

The cement industry is one of the largest industrial sources of anthropogenic carbondioxide emissions. The principal sources of these emissions are limestone calcination, fuel combustion during clinker production, electricity consumption during grinding, and the large quantity of...

Compressive Strength of Irradiation-Cured Green Concrete A Multiscale Physical and Engineering Analysis

Green concrete incorporating industrial by-products, recycled aggregates, geopolymer binders, polymeric modifiers, and radiation-shielding minerals represents animportant approach for reducing the environmental impact of cement-based construction materials. The application of ion...

Reconstruction of Quantum Yang–Mills Theory from Euclidean Schwinger Functions

This paper presents a mathematically controlled research program for Phase Three of the proposed construction of four-dimensional quantum Yang–Mills theory: the reconstruction of the physical Hilbert space, the local observable algebra, and the Hamiltonian from Euclidean Schwinge...

Yang–Mills Existence and Mass Gap Continuum Limits and Osterwalder–Schrader Positivity

The construction of a mathematically rigorous four-dimensional quantum Yang–Mills theory with a strictly positive mass gap remains one of the central problems in mathematical physics. The principal mathematical requirements are the existence of a non-trivial continuum limit and t...

Explicit Functional Renormalization-Group Flow Equation for the LSI Constant ϱk in Terms of the String Tension

This work develops a functional renormalization-group formulation for a scaledependent LSI constant, denoted by ϱk, and establishes its relation to the infraredstring tension σk. Since the symbol ϱk is not universally standardized in thefunctional renormalization-group literature...

Infinite-Volume and Continuum Limits in Four-Dimensional Quantum Yang–Mills Theory

The construction of a mathematically rigorous four-dimensional quantum Yang– Mills theory with a non-zero mass gap remains one of the central problems in mathematical physics.The principal difficulty is not the formal definition of the classical field equations, but the construct...

Rigorous Foundations of Four-Dimensional Euclidean Yang–Mills Theory on a Finite Lattice

This paper develops the mathematical and physical foundations of the first phaseof a proposed research program for the rigorous construction of four-dimensionalquantum Yang–Mills theory. The analysis is restricted initially to pure non-AbelianYang–Mills theory with compact gauge...

Explicit Functional Renormalization-Group Flow Equation for the LSI Constant ϱk in Terms of the String Tension

This work develops a functional renormalization-group formulation for a scaledependent LSI constant, denoted by ϱk, and establishes its relation to the infraredstring tension σk. Since the symbol ϱk is not universally standardized in thefunctional renormalization-group literature...

Yang–Mills Existence and Mass Gap Continuum Limits and Osterwalder–Schrader Positivity

The construction of a mathematically rigorous four-dimensional quantum Yang–Mills theory with a strictly positive mass gap remains one of the central problems in mathematical physics. The principal mathematical requirements are the existence of a non-trivial continuum limit and t...

Infinite-Volume and Continuum Limits in Four-Dimensional Quantum Yang–Mills Theory

The construction of a mathematically rigorous four-dimensional quantum Yang– Mills theory with a non-zero mass gap remains one of the central problems in mathematical physics.The principal difficulty is not the formal definition of the classical field equations, but the construct...

Sustainable Management and Environmentally Friendly Valorization of Massive Excavation Spoil

Massive excavation spoil generated by deep foundations, metro systems, tunnels,reservoirs, highways, and underground infrastructure represents one of the largestmaterial streams in civil engineering. Conventional disposal practices, includinguncontrolled stockpiling, long-distanc...

Early Deterioration of Civil Engineering Structures Under Organic Salts and Chloride Exposure

The premature deterioration of reinforced-concrete structures exposed to chloride and organic salts is a coupled physicochemical, electrochemical, transport, and mechanical phenomenon. Chloride ionspenetrate concrete through diffusion, capillary suction, convection, and electromi...

Ultra High-Performance Concrete (UHPC) Design, Mixing, and Commercial Application Challenges in Long-Span Bridges

Ultra-High-Performance Concrete (UHPC), particularly Ultra-High-Performance Fiber-Reinforced Concrete (UHPFRC), represents a major development in cementitious materials engineering. Its performance results from the simultaneous optimization of particle packing, hydration chemistr...

Advanced Thermal Insulation Materials for Reducing Energy Consumption in Commercial Towers

Commercial towers are among the most energy-intensive building types becauseof their large conditioned floor areas, extensive glazed façades, high internal heatgains, vertical transportation systems, and continuous heating, ventilation, andair-conditioning requirements. The therm...

Sustainable Management and Environmentally Friendly Valorization of Massive Excavation Spoil

Massive excavation spoil generated by deep foundations, metro systems, tunnels,reservoirs, highways, and underground infrastructure represents one of the largestmaterial streams in civil engineering. Conventional disposal practices, includinguncontrolled stockpiling, long-distanc...

Advanced Dynamic Wind Load Analysis of Ultra Long Span Suspension Bridges

Ultra-long-span suspension bridges are highly flexible, lightly damped, prestressedstructural systems whose dynamic response is strongly governed by the interactionbetween atmospheric turbulence, structural motion, and unsteady aerodynamicforces. For very large main spans, wind l...

Efficiency Analysis of Nanostructured Coatings in Protecting Marine Structures from Moisture and Extreme Salinity

Marine structures are exposed to a highly aggressive environment characterized by continuous moisture, dissolved oxygen, chloride ions, cyclic wetting and drying, hydrostatic pressure, ultraviolet radiation, and mechanical damage. These conditions accelerate the corrosion of stee...

Blockchain-Based Management of Massive Engineering-Project Data for Transparency and Tamper Resistance

Massive engineering projects generate heterogeneous data from design models, geotechnical investigations, structural calculations, material certificates, inspection reports, construction schedules, financialtransactions, sensor networks, drones, laboratory tests, and operation-an...

Efficiency Analysis of Nanostructured Coatings in Protecting Marine Structures from Moisture and Extreme Salinity

Marine structures are exposed to a highly aggressive environment characterized by continuous moisture, dissolved oxygen, chloride ions, cyclic wetting and drying, hydrostatic pressure, ultraviolet radiation, and mechanical damage. These conditions accelerate the corrosion of stee...

Soil Liquefaction Hazards and Deep Soil Mixing Improvement Technology: Advanced Mathematical and Physical Framework

Soil liquefaction is a coupled hydro-mechanical instability that develops when cyclic earthquake loading causes a rapid increase in excess pore-water pressure and a corresponding reduction in effective stress. Under undrained or partially drained conditions, loose saturated granu...