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This study explores the effect of fire time and axial compression ratio on the failure mode, skeleton curve, stiffness degradation, ductility ratio and hysteresis energy dissipation of inorganic polymer concrete short columns after fire by pseudo-static test on three short column samples after high temperature and two contrast samples at normal temperature. The results show that the increase of axial compression ratio can improve the shear bearing capacity and stiffness of inorganic polymer concrete short columns at room temperature, but the ductility and energy dissipation of the samples are reduced. The longer the fire time is, the more obviously the shear bearing capacity, stiffness and energy dissipation capacity of inorganic polymer concrete short columns decrease, and the smaller the influence on ductility is. The higher the axial compression ratio, the worse the ductility is and the easier the shear failure is. After open flame test, the higher the axial compression ratio is, the more obviously the anti-seismic property of the samples decreases. It is suggested that the axial compression ratio of inorganic polymer concrete short columns should be appropriately controlled in the fire-prone area
inorganic polymer concrete, short column, open fire test, anti-seismic property
Davidovits J. (1989). Geopolymers and geopolymeric materials. Journal of Thermal Analysis and Calorimetry, Vol. 35, No. 2, pp. 429-441. https://doi.org/10.1007/BF01904446
Duxson P., Provis J. L., Lukey G. C., van Deventer J. S. J. (2007). The role of inorganic polymer technology in the development of ‘green concrete’. Cement and Concrete Research, Vol. 37, No. 12, pp. 1590-1597. https://doi.org/10.1016/j.cemconres.2007.08.018
Ganguly J., Saxena S. K. (1984). Mixing properties of aluminosilicate garnets: constraints from natural and experimental data, and applications to geothermo- barometry. American Mineralogist, Vol. 69, No. 1-2, pp. 88-97.
Liu M., Cheng X. Q., Li X. G., Jin Z., Liu H. X. (2015). Corrosion behavior of Cr modified HRB400 steel rebar in simulated concrete pore solution. Construction and Building Materials, Vol. 93, pp. 884-890. https://doi.org/10.1016/j.conbuildmat.2015.05.073
Lussi A., Schaffner M. (2000). Progression of and risk factors for dental erosion and wedge–shaped defects over a 6–year period. Caries Research, Vol. 34, pp. 182-187. https://doi.org/10.1159/000016587
Phillips T. D., Kubena L. F., Harvey R. B., Taylor D. R., Heidelbaugh N. D. (1988). Hydrated sodium calcium aluminosilicate: A high affinity sorbent for aflatoxin. Poultry Science, Vol. 67, No. 2, pp. 243-247. https://doi.org/10.3382/ps.0670243
Purdon A. O. (1940). The action of alkalis on blast-furnace slag. Journal of the Society of Chemical Industry, Vol. 59, No. 9, pp. 191-202.
Templin M., Franck A., Chesne A. U., Leist H., Zhang Y. M., Ulrich R., Schädler V., Wiesner U. (1997). Organically modified aluminosilicate mesostructures from block copolymer phases. Science, Vol. 278, No. 5344, pp. 1795-1798. https://doi.org/10.1126/science.278.5344.1795
Wang Y. (2013). Effect of corrosion on mechanical properties of rebar HRB335. Advanced Materials Research, Vol. 753-755, pp. 539-542. https://doi.org/10.4028/www.scientific.net/AMR.753-755.539
Wongpa J., Kiattikomol K., Jaturapitakkul C., Chindaprasirt P. (2010). Compressive strength, modulus of elasticity, and water permeability of inorganic polymer concrete. Materials & Design, Vol. 31, No. 10, pp. 4748-4754. https://doi.org/10.1016/j.matdes.2010.05.012