Colored Mortars
Description
This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
Colored Mortars
Colors Given to Portland Cement Mortars Containing Two Parts River Sand to One Part Cement
Dry Material Used | Weight of Dry Coloring Matter to 100 Lbs. of Cement | Cost of Coloring Matter per | ||||
1/2Pound | 1 Pound | 2 Pounds | 4 Pounds | |||
Lampblack | Light Slate | Light Gray | Blue Gray | Dark Blue Slate | 15 cents | |
Prussian Blue | Light Green Slate | Light Blue Slate | Blue Slate | Bright Blue Slate | 50 | ,, |
Ultramarine Blue | Light Blue Slate | Blue Slate | Bright Blue Slate | 20 | ,, | |
Yellow Ocher | Light Green | Light Buff | 3 | ,, | ||
Burnt Umber | Light Pinkish Slate | Pinkish Slate | Dull Lavender Pink | Chocolate | 10 | ,, |
Venetian Red | Slate, Pink Tinge | Bright Pinkish Slate | Light Dull Pink | Dull Pink | 2 1/2 | ,, |
Red Iron Ore | Pinkish Slate | Dull Pink | Terra-Cotta | Light Brick Red | 2 1/2 | ,, |
The above table is taken from Sabin's "Cement and Concrete."
327. Painting Concrete Surface
Special paints are made for painting concrete surfaces. Ordinary paints, as a general rule, are not satisfactory. Before the paint is applied, the surface of the wall should be washed with dilute sulphuric acid, 1 part acid to 100 parts water.
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