The use and Quality identification of slate

Iron-containing slate is red or yellow; carbonaceous black or gray; calcium case of hydrochloric acid will bubble, so the general classification of its color, such as gray green slate, black slate, calcareous slate and so on. slate can be used as building materials and decorative materials, ancient in the area rich in slate commonly used for tiles. slate generally does not contain minerals.

roof

Slate stone is mainly used in the construction industry, slate stone is superior to the general artificial covering material, moisture, wind, with insulation. Slate roofs can last for hundreds of years. Slate safety, ecology, environmental protection.

Flooring and facades

Slate flooring is used for external flooring, interior flooring and facades. Slate flooring is usually laid out in the outdoor corridor, basement and kitchen. Indoor slate flooring durable, versatile, handsome. Homeowners can use slate to decorate the interior into a unique environment. Indoor slate flooring can be polished slate, it can be a natural style and color, the color is very rich, mainly in the main gray, such as gray, gray, gray, gray, etc., up to 256 kinds of collection color The Outdoor slate flooring can be random slate or slate tiles. Random slate can be of different shapes, such as solitary, trapezoidal, parallel quadrilateral.

Landscaping

slate due to weather resistance and pollution resistance, often used in a variety of residential and commercial landscaping works. Often used to lay the path, decorate the pool around, including the external walls, and even the courtyard. Slate stone can also be used as a fountain, combining traditional and modern styles.

Quality identification

Inspection of flatness:

Will be straightness tolerance of 0.1mm steel scale naturally attached to the surface of the two diagonal, with a stopper or vernier caliper measurement of the gap between the ruler and the board. The flatness of the sheet is indicated by the measured value of the maximum gap. Measurements are accurate to 0.1mm.

Angle of the test:

With a tolerance of 0.13mm in the vertical angle of the hole, the inner corner length of 500mmx400mm 90 degrees steel angle ruler measurement. The short side of the corner is close to the short side of the plate and the long side of the square foot is attached to the long side of the plate. The maximum clearance between the long side of the plate and the long side of the plate is measured with a stopper or a swivel. When the long side of the plate is less than or equal to 500mm, can measure any pair of diagonal; when the long side of the plate is greater than 500mm, the measurement of the four corners of the plate.

The angle tolerance of the sheet is indicated by the measured value of the maximum gap. Measurements are accurate to 0.1mm.

Appearance quality testing:

1. Pattern color will be qualified plate and the plate was flat on the ground, from the plate at 1.5m standing visual.

2. Artificial chisel plate will be flat on the floor, 1.5m away from the panel visual inspection.

3. Number of color lines.

4. Angle and collapse with a vernier caliper to measure the length of the defect, width, height; visual number of missing angle.

5. Step Use the vernier caliper to measure the height of the step and measure the maximum as the height of the step.

6. Crack visible cracks using visual method, the implicit crack using hammer method (that is, with metal hammer percussion plate, through the sound, usually dumb sound to determine whether there is crack) to determine.

7. Stains Measure the size of the stain with a vernier caliper and measure the number of stains.

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