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Effect of fatty acid soap on microstructure of lime-cement mortar
- Source :
- Construction and Building Materials. 116:384-390
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- Different additives based on Na oleate, Na oleate – Ca stearate and Al stearate were used in two different quantities (0.15 %w/w and 0.30 %w/w of the solid amount) to enhance the waterproofing effect of mortars. From capillary water absorption test, Na oleate showed the better performance with a reduction of water absorbed of 86% in comparison with the reference mortar. The microstructure showed the presence of microcavities ranging between 0.01 mm and 0.2 mm, due to air bubbles trapped during the mortar preparation for the surfactant effect of Na oleate. The presence of a higher amount of pores (210 mm3/g vs. 175 mm3/g) was confirmed by the Hg porosimetry. Moreover a reduction of the carbonation rate for the presence of additive was verified.
- Subjects :
- Materials science
Absorption of water
Carbonation
0211 other engineering and technologies
02 engineering and technology
engineering.material
Durability
chemistry.chemical_compound
Pulmonary surfactant
Stearate
021105 building & construction
General Materials Science
Composite material
Civil and Structural Engineering
Lime
Mortar, Fatty acid soap, Barrier properties, Water absorption, Durability, TGA, Porosity
TGA
Barrier properties
Fatty acid soap
Building and Construction
Porosimetry
021001 nanoscience & nanotechnology
Microstructure
Mortar
chemistry
engineering
Water absorption
0210 nano-technology
Porosity
Nuclear chemistry
Subjects
Details
- ISSN :
- 09500618
- Volume :
- 116
- Database :
- OpenAIRE
- Journal :
- Construction and Building Materials
- Accession number :
- edsair.doi.dedup.....7c9314f36f3abeda7370215a8a982913