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Autogenous shrinkage and expansion related to compressive strength and concrete composition (CROSBI ID 231177)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Marušić, Elica ; Štirmer, Nina Autogenous shrinkage and expansion related to compressive strength and concrete composition // Journal of Advanced Concrete Technology, 14 (2016), 489-501. doi: 10.3151/jact.14.489

Podaci o odgovornosti

Marušić, Elica ; Štirmer, Nina

engleski

Autogenous shrinkage and expansion related to compressive strength and concrete composition

An extensive research was undertaken in order to determine the dependence of shrinkage of high and normal strength concrete on the compressive strength and concrete composition. The part of research concerning dependence of autogenous shrinkage on compressive strength is presented in this paper. Ten groups of concrete, with the total of twenty nine mixtures, were prepared. Concrete mixtures of each individual group were made using the same quantity of water, while the quantity of cement (CEM II/A-S 42, 5R) and mineral admixture (silica fume) was varied in each group. Concrete groups differed according to the quantity of water. Autogenous shrinkage of concrete was monitored together with the influence of initial curing in water on concrete shrinkage. Initial autogenous expansion was noticed during testing autogenous shrinkage, especially on normal strength concrete. Based on the analysis of experimental results, the dependence of autogenous shrinkage at one day of concrete age on compressive strength was defined. The dependence of autogenous shrinkage at later ages on compressive strength of concrete was also presented. Finally, the autogenous shrinkage components of best-known theoretical shrinkage prediction models were compared with experimental data.

Autogenous shrinkage of concrete; autogenous expansion of concrete; initial curing; prediction models

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Podaci o izdanju

14

2016.

489-501

objavljeno

1346-8014

10.3151/jact.14.489

Povezanost rada

Građevinarstvo, Temeljne tehničke znanosti

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