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RISCorrosion Performance of Steel Reinforcement in Self-Compacting Concrete Exposed to Combined Sodium Chloride-Magnesium Sulfate Exposure Solution
Publisher: ASCE
Abstract: This study investigates the effect of binder type, w/b ratio, and exposure solution on the corrosion performance of steel reinforcement in self-compacting concrete (SCC). Prismatic specimens made from SCC were subjected ...
Effect of Magnesium Sulfate in Chloride Solution on Variation in Microstructure, Chloride Diffusion, and Chloride-Binding Behavior of Concrete
Publisher: American Society of Civil Engineers
Abstract: In this study, variation in microstructure, diffusion of chloride (Cl−) ions, and binding of chloride in concrete exposed to solutions containing MgSO4 (MS) in NaCl (NC) under the wetting-drying cycle are analyzed and ...
Enhancing Flash-Setting Behavior by Incorporating Various Retarders and Their Effect on Mechanical and Microstructural Properties of Hybrid Alkali-Activated Mortar
Publisher: American Society of Civil Engineers
Abstract: This study laid an effort to address the flash-setting behavior of hybrid alkali-activated paste made with 25% OPC and 75% fly ash by incorporating sodium tetraborate (BR) and sucrose (S) as retarders at dosages of 2%, 4%, ...
Evaluation of Different Mix Parameters Related to Alkaline Activator on Microstructure and Rebar Corrosion Behavior of Chloride-Added Fly Ash–Based Geopolymer Concrete
Publisher: American Society of Civil Engineers
Abstract: AbstractThis study delves into the effects of different mix parameters pertaining to the alkaline
activator on the corrosion behavior of rebars and the microstructure evolution of
fly ash–based geopolymer concrete (Fa-GpeC) ...
Half-Cell Potential as an Indicator of Chloride-Induced Rebar Corrosion Initiation in RC
Publisher: American Society of Civil Engineers
Abstract: The results of an experimental study conducted on specimens similar to ASTM G109 made with different types of cement and steel, and varying water/cement (w/c) ratios are reported in this paper. A portion of the top surface ...
Planning-Based Approach for Fusing Data from Multiple Sources for Construction Productivity Monitoring
Publisher: American Society of Civil Engineers
Abstract: Project management tasks, such as productivity monitoring and cost estimation, require data to be fused from multiple data sources. Data fusion approaches incorporated in the existing research studies within the construction ...
Role of Chloride Ion and Cation Type Accompanied by Sulfate Ion on Durability Performance of Concrete in Conjoint Chloride–Sulfate Environment
Publisher: ASCE
Abstract: This work assessed the durability performance of concrete made with ordinary portland cement (OPC), portland pozzolana cement (PPC), OPC +20% fly ash, and OPC +30% fly ash subjected to sulfate-only and to conjoint ...
Impact of Cation Type of Chloride Salts on Diffusion Behavior and Binding Capacity of Chloride Ions in Concrete Containing Sodium Nitrite and Disodium Hydrogen Phosphate
Publisher: ASCE
Abstract: Chloride diffusion in concrete induces depassivation of steel reinforcement, which can jeopardize the service life of concrete structures subjected to aggressive environments. This paper investigates the effect of a cation ...
Effect of Source Materials and Sand-to-Binder Ratio on Durability Performance and Microstructural Changes of Geopolymer Mortar Subjected to Sulfate and Acid Environment
Publisher: ASCE
Abstract: This study investigated the durability performance and microstructural changes of fly ash–ground granulated blast furnace slag (GGBS)-based geopolymer mortar (GPM) made with different sand-to-binder (S/B) ratios and subjected ...
Acid Corrosion Resistance of Hybrid Alkaline Mortar Exposed to Hydrochloric Acid and Sulfuric Acid Solutions
Publisher: American Society of Civil Engineers
Abstract: AbstractThe objective of the present research work is to investigate the durability performance
of hybrid alkaline mortar (HAM), made with two different ordinary portland cement
(OPC)/fly ash proportions (15%/85% and ...