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Title: Test Of Colors For Portland Cement Mortars

Author(s): Raymond Wilson

Publication: Journal Proceedings

Volume: 32

Issue: 11

Appears on pages(s): 228-229

Keywords: none

DOI: 10.14359/8380

Date: 11/1/1935

Exposure tests on Portland cement mortars colored by the admixture of finely ground pigments are reported. Six months appears ample to indicate the color permanence of most pigments. Although most of the pigments tested were not affected by ex-posure to weather in the presence of portland cement, the use of color-durable pigments does not insure durability of color in the mortar surface. Exposure of the aggregate may lead to a change in color otcolor failure the mass; another efflorescence.