Nondestructive Evaluation of an Existing Concrete Structure using Load Test and Core Test


  • Azhar Saleem
  • M. Aziz
  • Z. A. Siddiqi
  • M. A. Javed


This research work is focused on nondestructive evaluation of a five storied concrete frame structure of which construction was halted seven years ago. Before further construction could be started again it was imperative to assess the existing condition. For this purpose, load tests and core tests were performed on four floors from basement to first floor. It took more than one year to finish the experimental work. Test results showed that the structure has adequate strength for future use although it was unprotected against severe environmental conditions for several years. Study further confirms the findings of previous researchers that a combination of tests, instead of performing just one type of test, provide more suitable results to confidently accept or reject the structure as a whole or its component for future use.


S. Kandlikar, Heat transfer and fluid flow in minichannels and microchannels, Elsevier, 2006.

C. M. Callizo, "Flow boiling heat transfer in single vertical channels of small diameters," KTH, Stockholm, 2010.

W. Owhaib, "Experimental heat transfer, pressure drop and flow visualization of R-134a in vertical mini/micro tubes," Doctoral Theis in Energy Technology KTH, Stockholm, 2007.

C. B. Tibirica and G. Ribatski, "Flow boiling heat transfer of R134a and R245fa in a 2.3 mm tube," International Journal of Heat and Mass transfer, pp. 2459-2468, 2010.

C. L. Ong and J. R. Thome , "Macro-tomicrochannel transition in two-phase flow: Part 2 – Flow boiling heat transfer and critical heat flux," Experimental thermal and fluid science, vol. 35, pp. 873-886, 2011.

T. N. Tran, M. W. Wambsganss and D. M. France, "Small circular and rectangular channel boiling with two refrigerants," International Jouranl of Multiphase flow, pp. 485-498, 1996.

G. Lazarek and S. H. Black, "Evaproative heat transfer, pressure drop and critical heat flux in a small veratical tube with R-113," International Journal of Heat and Mass transfer, pp. 945-960, 1982.

M. H. Maqbool, B. Palm and R. Khodabandeh, "Boiling heat transfer of ammonia in vertical smooth mini channels: Experimental results and predictions," International Journal of thermal sciences, pp. 1-9, 2011.

R. Ali, B. Palm and M. H. Maqbool, "Flow Boiling Heat Transfer Characteristics of a Minichannel Up to Dryout Condition," in ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Shanghai, 2009.

K. E. Gungor and R. Winterton, "A general correlation for flow boiling in tubes and annuli," International Journal of Heat and Mass transfer, pp. 351-358, 1986.

P. A. Kew and K. Cornwell, "Correlations for the prediction of boiling heat trnsfer in small diameter channels," Applied Thermal Engineering, pp. 705-715, 1997.

S. S. Bertsch, E. A. Groll and S. V. Garimella, "A composite heat transfer correlation for saturated flow boiling in small channels," International Journal of Heat and Mass transfer , pp. 2110-2118, 2009.

M. Cooper, "Saturated nucleate pool boiling, a simple correlation," in Proceedings of the 1st UK National Heat Transfer conference.

Z. Liu and R. H. S. Winterton, "A general correlation for saturated and subcooled flow boiling in tubes and annuli, based on a nucleate pool boiling equation," International Journal of Heat and Mass transfer, pp. 2759-2766, 1991.

D. Mikielewicz, "A new method for determination of flow boiling heat transfer coefficient in conventional diameter channels and minichannels," Heat Transfer Engineering, pp. 276-287, 2010.






Civil Engineering,Structures, Construction, Geo technology, Water, Transportation