학술논문

Fresh, hardened and thermal properties of coating mortars containing mineral additions and vermiculite
Document Type
article
Source
Materiales de Construccion, Vol 73, Iss 351 (2023)
Subject
Thermal mortar
Vermiculite
Mineral additions
Rheology
Squeeze-flow
Materials of engineering and construction. Mechanics of materials
TA401-492
Language
English
Spanish; Castilian
ISSN
0465-2746
1988-3226
Abstract
Efforts are made to alleviate thermal problems in buildings. The use of thermal mortars for coating with vermiculite as aggregate is used for this purpose, but the use with mineral additions is still scarce, especially the rheology through squeeze-flow. Thus, it was aimed to evaluate the behavior in fresh, hardened state and in the thermal conductivity of these mortars. Mortars containing Portland cement, lime, vermiculite, sand, and additions of metakaolin or ceramic brick waste, in the proportion of 1:1:6 (Cement: Lime: Sand), were evaluated. The sand was replaced by vermiculite in 40%, and the additions added in the proportion of 20% to the cement mass, and the water content determined with the spread obtained on the consistency table. Mixtures containing 20% mineral addition and 40% vermiculite proved to be feasible, reaching minimum values according to the respective standards.