Splet02. mar. 2024 · The impacts of concrete shrinkage and creep on the long-term load-bearing behavior of bridges are systematically evaluated and addressed in these tests, with … Splet21. feb. 2024 · Creep deformation is an important aspect of magnesium phosphate cement (MPC) used as a structural material. In this study, the shrinkage and creep deformation behaviors of three different MPC concretes were observed for 550 days. The mechanical properties, phase composition, pore structure, and microstructure of MPC concretes after …
Drying shrinkage and creep performance of geopolymer concrete
Splet01. apr. 2024 · Effects of shrinkage reducing admixture and internal curing agent on shrinkage and creep of high performance concrete @article{2024EffectsOS, … Splet01. mar. 2024 · Drying shrinkage is the difference between the strain of a non-loaded specimen exchanging water with its surroundings and the autogenous shrinkage. For cases where the relative humidity is larger than 40%, drying shrinkage is often considered to be caused by capillary effects. csl plasma dallas westmoreland
Creep and shrinkage of concrete - Wikipedia
Splet19. jan. 2024 · In normal concretes, most of shrinkage represents the drying shrinkage, which is caused mainly by increase of the capillary tension of pore water and the solid surface tension of pore walls, as well as thinning of multimolecular hindered adsorbed water layers in cement gel micropores. Splet18. sep. 2024 · Shrinkage is caused by decrease in either concrete length or volume resulting from changes in moisture content or chemical changes. The need to facilitate placement and consolidation of concrete often results in the decision to use a greater amount of mixing water than is needed for the hydration process. Splet27. dec. 2016 · Standard Test Method for Creep of Concrete in Compression Significance and Use 4.1 This test method measures the load-induced time-dependent compressive strain at selected ages for concrete under an arbitrary set of controlled environmental conditions. 4.2 This test method can be used to compare creep potentials of different … csk vs dc 2018 highlights