I have read with great interest Dr. Watson's paper on the fracture toughness measurement of hardened cement paste by the work of fracture method (1) using deep edge notched specimens with a large span/depth ratio. While his proposal is sound and based on experimental facts I would like to suggest th
Reply to a discussion of “the estimation of fracture surface energy as a measure of the ‘toughness’ of hardened cement paste” by Y.W. Mai
✍ Scribed by K.L. Watson
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 165 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0008-8846
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📜 SIMILAR VOLUMES
Fracture surface energy, obtained by the work of fracture method using notched beams, provides a simple and direct measure of the "toughness" of hardened cement paste that avoids relying on complex analytical procedures which may not be readily applicable to this type of material. Nevertheless, it i
The authors appreciate Bonen's discussion. He has raised a number of useful points that should be addressed. At the outset, it appears that Bonen has concluded that the preset gray levels used to identify phases within cement paste were selected based on "absolute" backscatter coefficients. This wa
In our experiments, mortar samples were exposed to a CO2-enriched atmosphere (CO2-series) and to a CO 2 + SO2-enriched atmosphere (SO2-series). Because of the gas concentrations (0.7 vol.-% CO2; 0.06 vol.-% CO2) used, the dominant process consists in the reaction of CO 2 with the alkaline components
We thank J. Baron and M. Buil for their reference to our work and for the interesting comparison they have made with their experimental results.