Exploratory studies of the utilization of sulfur in autoclaved products

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TypeArticle
Journal titleCement and Concrete Research
ISSN0008-8846
Volume4
Issue2
Pages177192; # of pages: 16
Subjectsulfur; autoclaving; hydration; compressive strength; cement; mortar; Concrete; soufre; autoclavage; hydratation; resistance a la compression; ciment; mortier
AbstractA significant improvement in the compressive strength of cement paste autoclaved at 216 degrees C and 300 psi steam pressure has been obtained with 1 to 2 percent sulfur additions. Physical properties such as N[2] surface area, pore size distribution, first drying shrinkage, density, porosity and microhardness provide evidence that the addition of sulfur produces properties approaching those of normally hydrated paste. In autoclaved mortars sulfur additions appear to reduce the bond between the autoclaved product and siliceous aggregate, although the advantage of sulfur in the paste is still evident. Strengthening of the paste (due to sulfur addition) was fully realized when limestone fine aggregate was used.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-RP-590
NRC number13813
3769
NPARC number20375292
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Record identifierd5d68fa7-bb2d-4fef-bfea-b2e414cb75d1
Record created2012-07-23
Record modified2016-05-09
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