Squeeze flow of mortars on brick substrate and its relation with bond strength

被引：7

作者：

Carvalho Costa, Eliane Betania ^{[1
]}

de Franca, Marylinda Santos

Navarro Bergossi, Fabio Luiz ^{[2
]}

Borges, Renan Kiapuchinski ^{[2
]}

机构：

[1] Univ Fed Uberlandia, Fac Civil Engn, Joao Naves Avila Ave 2121, BR-38400902 Uberlandia, MG, Brazil

[2] Fed Univ Technol, BR-81290000 Curitiba, PR, Brazil

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 265卷

关键词：

Squeeze flow; Mortar; Bond strength; Rheology; Capillary absorption; RHEOLOGICAL BEHAVIOR; CEMENT; PARAMETERS; WASTE;

D O I：

10.1016/j.conbuildmat.2020.120298

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study evaluates the rheological behavior of mortars and its bond strength with ceramic brick substrate. Reference and limestone mortars were prepared varying the kneading water contents: 13%; 15% and 17% of w/w of the whole composition. Squeeze flow results showed a decrease of displacement (around of 60%) when mortar is applied on brick substrate compared to a non-absorbing plate. Bond strength increased by 54% with increase of water content for the same mortar composition. Mortars with higher water content favor the creation of channels that facilitate water flow to the substrate thus restricting spread after the contact. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：8

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