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Porosity and mechanical properties of cement mortar

โœ Scribed by Y.-W. Mai; B. Cotterell

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
322 KB
Volume
15
Category
Article
ISSN
0008-8846

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โœฆ Synopsis

The effect of volume fraction porosity on the mechanical properties of cement mortar is studied.

It is shown that both the Young's modulus and fracture toughness decrease with porosity.

Although the flexural strength also decreases with porosity the linear relationship is largely fortuitous. Maximum size pores do not act as critical flaws in controlling flexural strength.

The critical crack size is several times larger than the maximum pore size due to stable crack growth according to the crack growth resistance curve concept applied to cement mortar.

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