Influence of curing temperature on the mechanical properties of high-performance concrete

International Conference Building Materials, Products and Technologies

材料科学;工业技术（总论）

Fladr, J.^1 ; Broukalova, I.^1

Department of Concrete and Masonry Structures, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, Prague

16629, Czech Republic^1

关键词: Compression strength;    Curing temperature;    High temperature;    Impact of temperatures;    Mix designs;    Splitting strength;    Time records;    Winter conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/583/1/012011/pdf
DOI  :  10.1088/1757-899X/583/1/012011

来源: IOP

【 摘 要 】

As part of the research focused on high-performance concrete (HPC) at our workplace, the impact of temperature curing on compression strength of HPC has been investigated. Four sets of samples (100 x 100 x 100 mm cubes, 30 samples in each set) were produced with the same mix design. Each set was cured with a different temperature: 20°C (reference samples), 50°C and 80°C (high and very high temperature curing) and 10°C (simulation of concreting in winter conditions). The curing was always carried out in a water bath with a given temperature during the whole time of maturing of the samples. Samples were tested in 1, 3, 7, 14 and 28 days of age. In each time step, three cubes were tested for compression strength and three cubes for tensile splitting strength. The results of the primary research are the time records of the increase of both strengths.