Articles
Early-Age Cracking of Lightweight Mass Concrete
Abstract In this project, the effect of using lightweight aggregate (expanded slate) on the early-age cracking tendency of mass concrete mixtures was evaluated. Concretes representative of mass concrete mixtures—namely, normal-weight concrete, internally cured...
Predicting Chloride Testing Outcome of Different Cementitious Systems
Abstract The American Concrete Institute (ACI) specifies allowable admixed chloride limit (Climit) values to minimize the corrosion risk of steel reinforcement in concrete. The chloride concentration of concrete for new construction must not exceed this Climit value....
Alkaline Attack on Cement or Lime Mortar and Glass Fiber- Reinforced Polymer Rod
Abstract Glass fiber-reinforced polymer rods, both bare and embedded in concrete or lime mortar, were immersed in an alkaline solution at 20°C for up to 6 months and tested to find the influence of the protective covers on the degradation of the rods. Diffusion and...
Effect of Temperature on Pore Structure and Strength of Concrete
Abstract The aim of this study is to quantitatively determine the effect of elevated temperatures on the pore structure and compressive strength of concrete. To minimize the effect of the hydration process, thermal and endogenous shrinkage, concrete cured in water for...
Effect of Particle Size Distribution of Sand on Mechanical Properties of Cement Mortar
Abstract Despite the many research studies on the effect of the particle size distribution (PSD) of sand and microsilica content on the mechanical properties of cement mortar, there has not been a comprehensive study investigating the effect of the PSD curve...
Portland Cement Concrete Deformation Modulus: Influence of Paste Volume
Abstract The dimensioning of structural systems in reinforced or prestressed concrete requires knowledge, among other properties, at least of the deformation modulus and compressive strength. However, concrete may present enough strength, whereas the structure...
Discussion on Problem of Standard Deviation of Concrete Strength
Abstract This paper discusses the characteristics of the standard deviation of concrete specimen strength and the relationship between the standard deviation of concrete strength and the average value of strength. It is revealed that strength standard deviation of a...
Splitting Tensile Strength of Concrete Corroded by Saline Soil
Abstract This paper reports the splitting tensile strength of concrete corroded by saline soil. The wet-dry cycle erosion test and splitting tensile test were performed on concrete cubic specimens with six different erosion inspection periods and a solution with the...
Continuously Reinforced Concrete Pavement under Temperature Loading
Abstract Continuously reinforced concrete pavement (CRCP) has superior durability and mechanical performance over jointed plain concrete pavement (JPCP) without preset joints. However, there are many small cracks in CRCP under environmental loading. Crack width of...