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The brittle fracture of
soil-cement blocks, by G. Lewis & B. Tamina, Zambia Journal of
Science and Technology, Vol.3, no.4, October 1978, Pg. 61-67.
Fracture toughness is a material property obtained by evaluating the stress
intensity factory at the onset of yielding. The stress intensity factor denotes
the elastic stress and displacement fields in the vicinity of the crack tip of a
homogeneous material. When soil cement is analysed as such a material an
effective fracture toughness is obtained. An experimental investigation leads to
the conclusion that for soil-cement, fracture toughness is a material
characteristic and can be used in analysing its cracking phenomenon.
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