Sustainability of Recycled Concrete Aggregate
The use of mineral admixtures in concrete produced with treated recycled concrete aggregate enhances both the mechanical and durability properties leading to sustainable development.
View ArticleService-Load Behavior of Precast/Prestressed Concrete Beams with High-Quality...
The use of discarded/rejected precast concrete represents a significant opportunity as a source for clean recycled concrete aggregates with consistent properties and high quality.
View ArticleHigh-Volume Recycled Materials for Sustainable Transportation Infrastructure
The use of recycled concrete aggregate (RCA) in new concrete production can minimize the environmental impact associated with the construction industry.
View ArticleEffects of Moisture, Temperature, and Freezing-and-Thawing on Alkali-Silica...
Controlling or limiting the internal relative humidity (moisture) within concrete may prevent deterioration from occurring, or slow ongoing deterioration.
View ArticleControlling Mass Concrete Effects in Large Diameter Drilled Shafts Using Full...
A team of researchers, contractors, and state materials engineers concluded that the simple process of casting large diameter drilled shafts with a central void completely eliminated mass concrete...
View ArticleEffect of Geopolymer Aggregate on Strength and Microstructure of Concrete
The geopolymer investigated in this research shows potential as a lightweight coarse aggregate for concrete, with the additional benefit of reducing the environmental impact of fly ash from coal-fired...
View ArticleEvaluation of Prestressed Concrete Bridges under Light Rail Loading
A field work study of four bridges in Denver, Colorado was conducted to assess the behavior of prestressed concrete bridges carrying light rail transit loadings.
View ArticleArtificial Intelligence to Investigate Properties of Concrete Mixtures...
The use of recycled concrete aggregate (RCA) in concrete production can lead to a significant reduction in the Modulus of Elasticity (MOE).
View ArticleA New Model for Crack Control in Reinforced Concrete (RC) Tank Walls (Part I...
New research is focusing on a model for calculating crack width in the case of cracks caused by progressive cooling of the wall (for example, at the stage of concrete hardening or during ambient...
View ArticleEffect of Sustained Service Loading on Post-Fire Flexural Response of...
This research highlights the effect of sustained service load at elevated temperatures on the residual flexural response of reinforced concrete (RC) T-beams after being exposed to 1292 deg.F (700...
View ArticleThe Effect Of Multiaxial Stresses On The Alkali-Silica Reaction (ASR) Damage...
The research outcomes reveal that stress state can markedly affect the ASR performance of concrete by affecting ASR expansion, influencing opening and orientation of ASR cracks, and associating...
View ArticleBlends of Deicing Salts Can Help Increase Concrete Pavement Service Life
New research is focusing on the use of deicing salt blends to build concrete roads that are more durable and extend the service life of concrete pavements.
View ArticleLack of Compatibility in Admixtures Could Harm Concrete Durability
Test results show that interactions between admixtures can reduce air-void stability, contributing to lowered freezing-and-thawing durability and scaling resistance.
View ArticleTests Identify Onset of Out-of-Plane Buckling for Slender Wall Boundaries...
Analysis to evaluate the onset of global instability under tension/compression load shows that the onset of buckling can be identified using either a proposed buckling theory or computer simulations.
View ArticleResearch on Ionically Conductive Mortar for Electrical Heating Finds...
An innovative conductive composite, ionically conductive mortar, is developed in this study.
View ArticleElectrical Resistivity Measurement Method for Measuring Water Absorption...
The results described in this work show the electrical resistivity measurement method has the potential to be an accurate means for measuring the water absorption of very fine particles. Such advances...
View ArticleAmerican Concrete Institute Announces New Webinar on Engineering Ethics
The "Engineering Ethics" webinar will review various codes of ethics and their applications, along with a review of some case studies and lessons learned.
View ArticlePhysical Characteristics and Chloride Permeability of Internally Cured...
An experimental study examines the physical characteristics of internally cured concrete using organic and inorganic materials, including chloride-related responses.
View ArticleSeismic Performance of a Building Subjected to Intermediate Seismic Shaking
Results from a recent study show that a prescriptive code-based approach can lead to critical underestimation of seismic demands.
View ArticleExperimental Behavior of GFRP-Reinforced Concrete Columns under Lateral...
The present study addresses the feasibility of reinforced concrete columns totally reinforced with glass fiber-reinforced polymer (GFRP) bars achieving the drift requirements specified in various codes.
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