The effect of aggregate size and type of binder on microstructure and mechanical properties of NHL mortars

被引：36
|
作者：
Kalagri, A. [1 ]
Karatasios, I. [1 ]
Kilikoglou, V. [1 ]
机构：
[1] Natl Ctr Sci Res Demokritos, Inst Mat Sci, Athens 15310, Greece
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 53卷
关键词：
Natural hydraulic lime; Restoration mortar; Mechanical properties; Porosity; Packing density; NATURAL HYDRAULIC LIME; COMPRESSIVE STRENGTH; POROSITY; CEMENT; RESTORATION; HYDRATION;
D O I：
10.1016/j.conbuildmat.2013.11.111
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Natural hydraulic limes are used as an alternative to cement-based binders in mortars and renders for the repair and maintenance of historic structures as well as in new building. This paper discusses the role of the binder type, the grain size and the packing density of aggregates on the physico-chemical and mechanical characteristics of hydraulic lime mortars. Empirical formulae connecting the compressive strength with: (a) dynamic modulus of elasticity and (b) mean pore radius, have been extracted and discussed. Overall, the results have indicated that the microstructure of the binder and the packing density aggregates are the parameters that dominate the performance of the hydraulic mortars and therefore should be seriously considered during field applications. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：467 / 474
页数：8
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