Effect of silica fume and SBR latex on the pasteaggregate interfacial transition zone
This paper deals with the effect of silica fume and styrene-butadiene latex (SBR) on the microstructure of the interfacial transition zone (ITZ) between Portland cement paste and aggregates (basalt). Scanning Electron Microscope (SEM) equipped with energy dispersive x ray analysis system (EDX) was used to determine the ITZ thickness. In the plain concrete a marked ITZ around the aggregate particles (55 µm) was observed, while in concretes with silica fume or latex SBR the ITZ was less pronounced (35-40 µm). However, better results were observed in concretes with silica fume and latex SBR (20-25 µm).
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| Format: | Digital revista |
| Language: | English |
| Published: |
ABM, ABC, ABPol
2007
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392007000100018 |
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