Hirozo Mihashi, Hideaki Takahashi, Tohoku University. Folker H. Wittman, ETH-Hoenggerberg, Zurich.

• Introduction, Introductory remarks of the workshop, 1. Structure and fracture mechanisms of aggregative materials 2A. Methods to determine and to evaluate the fracture toughness 2B. Methods to determine and to evaluate the fracture toughness and the fracture energy of aggregative materials -Rock 3. Numerical analysis of fracture in aggregative materials and structures 4. Further trends of new testing methods 5. Advanced, applications.

Hirozo Mihashi, Hideaki Takahashi, Tohoku University. Folker H. Wittman, ETH-Hoenggerberg, Zurich.

• Introduction, Introductory remarks of the workshop, 1. Structure and fracture mechanisms of aggregative materials 2A. Methods to determine and to evaluate the fracture toughness 2B. Methods to determine and to evaluate the fracture toughness and the fracture energy of aggregative materials -Rock 3. Numerical analysis of fracture in aggregative materials and structures 4. Further trends of new testing methods 5. Advanced, applications.

Hirozo Mihashi, Hideaki Takahashi, Tohoku University. Folker H. Wittman, ETH-Hoenggerberg, Zurich.

• Introduction, Introductory remarks of the workshop, 1. Structure and fracture mechanisms of aggregative materials 2A. Methods to determine and to evaluate the fracture toughness 2B. Methods to determine and to evaluate the fracture toughness and the fracture energy of aggregative materials -Rock 3. Numerical analysis of fracture in aggregative materials and structures 4. Further trends of new testing methods 5. Advanced, applications.