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RISExperimental Investigation on Correlation between Autogenous Shrinkage and Internal Relative Humidity of Superabsorbent Polymer–Modified Concrete
Publisher: ASCE
Abstract: This research investigated the effect of superabsorbent polymers (SAPs) (0%, 0.17%, 0.35%, and 0.49% of cement content by weight) on the correlation between autogenous shrinkage (AS) and internal relative humidity (IRH) ...
Estimating Stress Relaxation and Cracking Potential of High-Strength Concrete Reinforced with Polyvinyl Alcohol Fiber at Early Age
Publisher: ASCE
Abstract: High-strength concrete (HSC) with a low water-to-cement (w/c) ratio always exhibits high shrinkage at an early age. Concrete with shrinkage that is subjected to restraint is prone to trigger harmful cracking, which facilitates ...
Experimental Study on Early-Age Cracking Behavior of Hooked-End Steel Fiber–Reinforced Concrete under Different Curing Temperatures
Publisher: American Society of Civil Engineers
Abstract: Steel fiber is the most widely used type of fiber in concrete because of its advanced and economical manufacturing facilities, reinforcing effect, and ability to cope with changing environmental conditions. The use of steel ...
Setting Time Optimization of Excessive-Sulfate Phosphogypsum Slag Cement for Self-Compacting Concrete Based on a Paste Rheological Threshold Theory
Publisher: American Society of Civil Engineers
Abstract: The accumulation of phosphogypsum (PG) has become a significant environmental and economic challenge, making PG reuse an urgent concern. This study aims to explore the potential of combining PG with steel slag (SS), ground ...
Dynamic Bond Stress-Slip Relationship between Basalt FRP Sheet and Concrete under Initial Static Loading
Publisher: American Society of Civil Engineers
Abstract: Reinforced concrete structures strengthened by fiber-reinforced polymer (FRP) always suffer dynamic loadings. Furthermore, the dynamic loadings are always added at the base of static loadings. The success of this strengthening ...
Influence of Particle Internal Pores on Hydration Kinetics and Microstructure Development in Tricalcium Silicate Hydration
Publisher: ASCE
Abstract: The accurate reconstruction of the morphologic organization of reactants would be a crucial aspect in understanding tricalcium silicate (C3S) hydration. However, C3S particles are generally regarded as nonporous solids for ...
Effect of Water-to-Cement Ratios on Performance of Concrete with Prewetted Lightweight Aggregates
Publisher: American Society of Civil Engineers
Abstract: Lightweight aggregates (LWAs), as a popular material for internal curing (IC), have been extensively utilized in internally cured concrete (ICC). This paper investigated the development of mechanical properties, restrained ...
Early-Age Autogenous Shrinkage and Cracking Risk of 5D Hooked-End Steel Fiber–Reinforced High-Strength Concrete under Uniaxial Restrained Condition
Publisher: ASCE
Abstract: The incorporation of steel fiber exhibits great benefits to reduce cracking risk and autogenous shrinkage (AS) of high-strength concrete (HSC). 5D hooked-end steel fiber (5DSF) is a kind of novel hooked-end steel fiber. ...
Tensile Creep and Cracking Resistance of High-Strength Concrete with Shrinkage Reducing Admixture under Uniaxial Restrained Condition at Early Age
Publisher: American Society of Civil Engineers
Abstract: High-strength concrete (HSC) has been widely used in various engineering structures due to its excellent mechanical properties. However, the low water/cement ratio in HSC causes greater shrinkage and increases the cracking ...
Experimental Investigations on Early-Age Stress Relaxation and Cracking Behavior of Supersulfated Cement Concrete with Different Activator Proportions
Publisher: American Society of Civil Engineers
Abstract: As an alternative to ordinary portland cement (OPC), supersulfated cement (SSC) has better properties in terms of being environmentally friendly as well as durability in aggressive environments. Nevertheless, the research ...