Papers Published

1. Moseley, M.D. and Ojdrovic, R.P. and Petroski, H.J., Influence of aggregate size on fracture toughness of concrete, Theor. Appl. Fract. Mech. (Netherlands), vol. 7 no. 3 (1987), pp. 207 - 10 [0167-8442(87)90038-3] .
   (last updated on 2007/04/09)

   Abstract:
   Employing an extension of the splitting tensile test by using a notched cylinder specimen, the authors have studied effects of initial notch length and maximum aggregate size on fracture toughness of concrete. Experimental results show that maximum aggregate size does influence ductility, with increasingly ductile behavior associated with increasing aggregate size. The results also support previous work in that initial notch length and maximum load do not yield a constant value for fracture toughness, whereas maximum linear load and initial notch length minimize the effects of slow crack growth and do produce a more constant value

   Keywords:
   concrete;cracks;ductility;fracture toughness;notch strength;