Marble cements. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Marble cements. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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The so-called gypsum masses have a high density, strength, hardness, resistance to atmospheric influences, a homogeneous structure, in addition, they harden slowly, are easy to work with and are therefore very suitable as a cementing substance. These masses lend themselves to polishing, adhere in the form of a thin layer to any material and can be painted in any color. In terms of their qualities, they stand between Portland cement and stucco.

Marble cements serve for the manufacture of ornaments, artificial marble, for the correction of marble facings, stone ornaments and for filling holes and boreholes.

1st recipe:

White marble cement or Keene's putty is prepared from completely white gypsum, impregnated after firing, with an alum solution, after which it is subjected to a second firing in red fire, and then ground into a fine powder. Alum solution is used for mixing. The mass hardens slowly. This cement, mixed with 20% water, after 4 weeks has a tensile strength of 36,9 kg/cm2 and a compressive strength of 411 kg/cm2,

2st recipe:

Parian cement is made from 44-45 wt. hours of gypsum flour and 1 wt. hours of burnt borax. Gypsum is impregnated with a solution of borax and burned to a red heat. This cement sets and dries within 4 hours. It can be used for both plastering and masonry, and after drying, paint or wallpaper. It should be mixed with as little water as possible.

For a grayish-green tint, take:

Portland cement 170 kg;
Sand 340 kg;
Ultramarine blue 22,5 kg;
Yellow ocher 33 kg;
Soft soap 3,15 kg;
Alum 3,15 kg.

For gray color:

Portland cement 170 kg;
Lamp black 22,5 kg;
Ultramarine blue 16 kg;
Sand 340 kg;
Green soap 3,15 kg;
Alum 3,15 kg.

After hardening of the applied layer, the surface is coated with a solution of paraffin in kerosene.

Author: Korolev V.A.

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