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VYŠVAŘIL, M. VOZÁK, R.
Original Title
Effect of aggregate gradation on lime mortars rheology
Type
conference paper
Language
English
Original Abstract
The influence of basalt, limestone, and quartz aggregate and their various gradation on rheological properties of air lime mortars with constant water/binder ratio and binder/aggregate ratio is monitored in this work. It was found that the rheology of fine-grained lime mortars is influenced not only by the shape of the aggregate, but also by its granulometry, especially by the content of fines. The lime mortars with basalt, limestone or quartz aggregate are shear-thinning non-Newtonian liquids. Their shear stress, yield stress, and flow index decrease with increasing aggregate fraction. The viscosity of lime mortars is markedly influenced by the amount of lime matrix. The lime mortars with quartz and limestone aggregate are rheopectic suspensions.
Keywords
lime mortar; rheology; aggregate gradation; basalt; limestone; quartz
Authors
VYŠVAŘIL, M.; VOZÁK, R.
Released
19. 6. 2019
Publisher
IOP Publishing
ISBN
1757-8981
Periodical
IOP Conference Series: Materials Science and Engineering
Year of study
549
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
Pages to
8
Pages count
BibTex
@inproceedings{BUT157645, author="Martin {Vyšvařil} and Rastislav {Vozák}", title="Effect of aggregate gradation on lime mortars rheology", booktitle="XXV International Conference and Meeting of Departments, CONSTRUMAT 2019", year="2019", journal="IOP Conference Series: Materials Science and Engineering", volume="549", number="1", pages="1--8", publisher="IOP Publishing", doi="10.1088/1757-899X/549/1/012014", issn="1757-8981" }