In this paper, the development of concrete strength characteristics under the load of early age is studied through experiments. The results show that: the compressive strength and splitting tensile strength of concrete will deteriorate after early age load, but the deterioration effect will be weakened with the extension of initial loading time. For the concrete that began to be loaded at the age of 1d, the incorporation of fibers further aggravated the damage to the concrete caused by the early-age load, and did not have the effect of increasing the strength characteristics, however, for the concrete that began to be loaded at 3d, the incorporation of fibers can effectively reduce the damage to the concrete caused by the early-age load.

Haopeng Li, Xiaoyuan Liu, Wei Xu, Lei Shen, Xu Wang. Study on the development characteristics of concrete strength under early age loady. Academic Journal of Architecture and Geotechnical Engineering (2020) Vol. 2, Issue 2: 18-25. https://doi.org/10.25236/AJAGE.020204.

[1] Y.S. Wang and L.B. Xue(2009). Measurement and analysis of freezing pressure of shaft wall in extra-thick alluvium[J]. Journal of geotechnical engineering, vol.31, no.2, p.207-212.
[2] J.H. Liu and J.Q. Wang(2014). Performance of shaft lining concrete with coupling action of early age frozen earth pressure and negative temperature[J]. Journal of Beijing University of Science and Technology, vol.36, no.8, p.1000-1006.
[3] Ludovico D M and Prota A(2010).Structural upgrade using basalt fibers for concrete confinement[J]. Composites of Construction, vol.5, no.14, p.541-552.