Publication result detail

Effect of aggregate gradation on lime mortars rheology

VYŠVAŘIL, M.; VOZÁK, R.

Original Title

Effect of aggregate gradation on lime mortars rheology

English Title

Effect of aggregate gradation on lime mortars rheology

Type

Paper in proceedings (conference paper)

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.

English 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

Key words in English

lime mortar; rheology; aggregate gradation; basalt; limestone; quartz

Authors

VYŠVAŘIL, M.; VOZÁK, R.

RIV year

2020

Released

19.06.2019

Publisher

IOP Publishing

Book

XXV International Conference and Meeting of Departments, CONSTRUMAT 2019

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Volume

549

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

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"
}