U.S. White Linen common problems and solutions marbles

With the rise of large modern building, the building block views more and more high decoration, a large number of high-grade imported marble to be applied to various types of buildings. Paving marble imports produced by the "disease" has gradually emerged, light-colored marble are more likely than the dark color of marble, water, back to base and other "diseases." As a representative of imports of light-colored variety of granite, one of the "American white Ma", because of its greater hardness, striking decorative effect is widely used, but the "disease" is also the most obvious. This article will focus on the U.S. white linen wet paving common problems and solutions discussed do.
 
One. Rock Features

Petrology American white linen called "biotite plagioclase gneiss." Obviously gneissic structure. Mineral composition of feldspar, quartz, biotite and minor amphibole, chlorite. Rock crystal by the significant scale-like, columnar crystals of mineral changing granite, hornblende, granoblastic minerals feldspar, quartz and white alignment, distribution, form a discontinuous banded gneissic structure. U.S. White Ma rocks also contain iron. So. The marble surface with red spots, it rocks the performance of a small amount of chlorite formation of small green marble unique color stain.

Second, the finished sheet metal features

1, the cutting direction: the United States blocks of white linen texture clear. Texture in the direction along with dark flaky biotite minerals. Therefore, when in the horizontal cut into sheets. The plate was dark flakes of biotite and other minerals into the intermittent
Linear stripe-like distribution of bright marble board; such as texture along the direction of cutting. marble board will Patches of black spots, the appearance of relatively more than when the horizontal cut into decorative sheet aesthetic effect.
To maintain the aesthetic effect, the current U.S. market could see the white linen sheets are cross cutting granite products. Thus, between these sheets on the following lines for the vertical and micro-larvae L, capillary rich, absorbent, wet paving easily contaminated.

2, fine crystal marble: white linen, such as the United States smashed with a hammer, you will find the marble section are very fine and granular crystalline thin sheet, the largest visual crystal surface is not more than 1mm, most of the 0. Imm following, visual observation of the use of 20 times magnifying glass can clearly see the crystal surface morphology. I have not done a greater multiple of microscope, but the appearance point of view, may be even smaller crystalline particles.

This crystalline state will have the following two results:

(1), more transparent and translucent crystal with a crystal plane due to each of the micro direction is disordered, the light was "diffuse" state. Making the original should be crystal clear look of a translucent white appearance.

(2), in a Sandstone or other transparent material filling the gap crystals, the "diffuse" is eliminated, the refractive state of disorder changes the refractive state of the law as a whole, the marble is not white but looks to become a wet state under the translucent, semi-gray color, completely lost the American white linen decorative effect. If the marble surface, often presented in a part of this state, it formed a common water-soaked marble circles (spot) phenomenon. Therefore, to ensure that drying is the most important marble