by GCO | Mar 3, 2020 | Buildings & Structures
The recent revision of a guideline in the United States allows for the first time ever the qualification of post-installed reinforcing bars for end anchorages and overlap splices. The design of end anchorages and overlap splices with post-installed reinforcing bars...
by GCO | Mar 3, 2020 | Buildings & Structures
Massive foundation slabs are one of the structures in which early age effects play a significant role. These effects are mainly related to the exothermic nature of cement hydration and a consequent temperature rise in the structure. The inhomogeneous volume changes...
by GCO | Mar 3, 2020 | Buildings & Structures
Based on a 10-year climate survey for Oklahoma City, OK, three exposure regimens were devised: cyclic high temperature exposure, cyclic freezing-and-thawing exposure, and cyclic wetting-and-drying exposure. A total of four different test methods were compared to...
by GCO | Feb 19, 2020 | Buildings & Structures
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...
by GCO | Feb 19, 2020 | Buildings & Structures
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....
by GCO | Feb 19, 2020 | Buildings & Structures
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...
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