New natural hydraulic lime mortars - Physical and microstructural properties in different curing conditions

被引：102
|
作者：
Grilo, J. [1 ]
Faria, P. [2 ]
Veiga, R. [1 ]
Silva, A. Santos [1 ]
Silva, V. [2 ]
Velosa, A. [3 ]
机构：
[1] Natl Lab Civil Engn, P-101 Lisbon, Portugal
[2] NOVA Univ Lisbon, Dept Civil Engn, P-2829516 Caparica, Portugal
[3] Univ Aveiro, Dept Civil Engn, P-3800 Aveiro, Portugal
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 54卷
关键词：
EN 459-1:2010; Natural hydraulic lime; Mortar; Curing condition; Metakaolin; Laboratory characterization; HISTORICAL BUILDINGS; CEMENT; RESTORATION;
D O I：
10.1016/j.conbuildmat.2013.12.078
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The new version of EN 459-1 standard for building limes redefined the classes of hydraulic limes and made the producers reformulate or reclassify their natural hydraulic limes. This work evaluates the mechanical, physical and microstructural behavior of mortars formulated with a recently produced natural hydraulic lime NHL3.5 that conforms to EN 459-1, submitted to natural marine environment, humid and standardized conditions, and also the benefits and drawbacks of adding metakaolin in partial replacement of lime. Mortars with NHL3.5 present positive results at young ages. The metakaolin addition increases strength while decreasing the capillary water coefficient. The behavior in an aggressive marine environment seems promising. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：378 / 384
页数：7
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