Abstract: Finely ground glass has the potential for pozzolanic reactivity and can serve as a supplementary cementitious material (SCM). Uniform composition, amorphous nature, and high silica content make ground glass ideal for ...

Abstract: Agricultural residue ash is known to be a very reactive source of supplementary cementitious material (SCM) for use in concrete. The influence of thermochemical pretreatments on the reactivity of agricultural residue ash ...

Abstract: Early-age cracking may occur in high early–strength (HES) concrete repair slabs used for full-depth repairs in jointed plain concrete pavements (JPCPs) due to the early-age volume changes. HES concrete utilizes high cement ...

Abstract: Air-entrained high performance concrete (HPC) crossties or ties (alternatively called sleepers outside of North America) have been observed to suffer structural and material degradation at the rail seat area (RSA), including ...

Abstract: As ultra-high-performance concrete (UHPC) becomes more widely used, the need for good concrete tensile tests for fiber-reinforced concrete has become apparent. However, there is not yet one universally used test method. ...

Abstract: This study addresses the use of a stress-to-strength ratio as a failure criterion for thermal cracking. Restrained cracking frame specimens and accompanying match-cured concrete cylinders were tested to determine the ratio ...

Abstract: The Arrhenius equation is often used to characterize the progress of portland cement hydration for predicting in-place concrete temperature, strength, and other properties. To apply the Arrhenius equation, an activation energy (

Abstract: Physical salt attack (PSA) or salt weathering occurs as a result of the crystallization pressures in concrete pores exerted by phase changes of salts that penetrate the concrete. The crystallization pressures cause ...