Mechanical Fracture and Fatigue Characteristics of Fine-Grained Composite Based on Sodium Hydroxide-Activated Slag Cured under High Relative Humidity

• DOI: 10.3390/app11010259
• Publication Date: 2020-12-30T00:55:25Z
• Authors: Hana Šimonová; Barbara Kucharczy...; Vlastimil Bílek; Lucie Malíková; Petr Miarka; Martin Lipowczan
• Keywords: Brittleness

A typical example of an alternative binder to commonly used Portland cement is alkali-activated binders that have high potential as a part toolkit for sustainable construction materials. One group these materials slag. There lack information about its long-term properties. In addition, mechanical properties are characterized most often in terms compressive strength; however, it not sensitive enough sufficiently cover the changes microstructure such microcracking, and thus, poses risk practical utilization. Consequently, present study deals with determination fracture fatigue parameters fine-grained composites based on this interesting binder. The primarily obtained through direct evaluation test data via effective crack model, work-of-fracture method, double-K complemented by parameter identification using inverse analysis. outcome cyclic/fatigue tests represented Wöhler curve. results presented article represent complex material behavior valuable input models numerical simulations propagation quasi-brittle material.