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Synthesis of Quaternary Hydrotalcite-Carbon Nanotube Composite and Its Sulfate Adsorption Performance in Cement Paste
Publisher: ASCE
Abstract: In this paper, quaternary hydrotalcite [layered double hydroxide (LDH)] (CoFeMgAl-LDH) was first fabricated based on the coprecipitation method, and then, CoFeMgAl-LDH/carbon nanotubes (CNTs) composite was synthesized by ...
Performance of Cement Mortar with Inorganic Na2SO4·10H2O-Na2HPO4·12H2O Shape-Stabilization Phase Change Materials
Publisher: American Society of Civil Engineers
Abstract: Phase change material (PCM) is a strategic choice for storing energy and regulating the building temperature. It has been successfully integrated into cement-based materials, significantly affecting mechanical properties. ...
Simulation Study on the Stress Distribution in Modeled Recycled Aggregate Concrete under Uniaxial Compression
Publisher: American Society of Civil Engineers
Abstract: To investigate the stress distribution in recycled aggregate concrete (RAC) under uniaxial compression, modeled recycled aggregate concrete (MRAC) was studied by numerical simulation. The mechanical properties of interfacial ...
Development of High-Performance Self-Compacting Concrete Applied as the Filling Layer of High-Speed Railway
Publisher: American Society of Civil Engineers
Abstract: The filling layer of a China rail track system III (CRTS III) type ballastless track structure of a high-speed railway is a complicated structure typically constructed from self-compacting concrete (SCC). Excellent properties ...
Effect of Cyclic Loading Deterioration on Concrete Durability: Water Absorption, Freeze-Thaw, and Carbonation
Publisher: American Society of Civil Engineers
Abstract: The effect of cyclic loading deterioration on freeze-thaw and carbonation resistances of concrete were experimentally investigated in this study. A novel loading method was designed, which simultaneously considers both ...
Numerical Discrete-Element Method Investigation on Failure Process of Recycled Aggregate Concrete
Publisher: American Society of Civil Engineers
Abstract: This study numerically investigates the failure processes of recycled aggregate concrete (RAC) and natural aggregate concrete (NAC). A two-dimensional simulation based on a discrete-element method (DEM) is conducted with ...
Nano- and Microscopic Investigation on the Strengthening Mechanism of ITZs Using Waste Glass Powder in Modeled Aggregate Concrete
Publisher: ASCE
Abstract: As a pozzolan, waste glass powder (WGP) can improve the mechanical properties and durability of concrete, especially at a later age. However, the modification mechanisms should be fully understood and discussed. One of the ...
Effects of Nanoalumina and Graphene Oxide on Early-Age Hydration and Mechanical Properties of Cement Paste
Publisher: American Society of Civil Engineers
Influence of Nanolimestone on the Hydration, Mechanical Strength, and Autogenous Shrinkage of Ultrahigh-Performance Concrete
Publisher: American Society of Civil Engineers
Abstract: The influence of nanolimestone/nanoCaCo3 (NC) on the properties of ultrahigh-performance concrete (UHPC) cured at standard and heat conditions was experimentally investigated. The NC was used at ratios of 1, 2, and 3% as ...