Factory direct sell black basalt stone stair

1) product name:

basalt, blue stone, lava

2) hainan black basalt Usage:

wall stone cladding, pool coping, blindstone, tiles, flooring, stairs, window-sills, countertops, pavers, steps, kerbs, cubes, small slabs etc. Big slabs are not workable.

3) hainan black basalt technical details:

Flexual Strength: Mean Value 21.9 Mpa,

Lower expected value: 16.9 Mpa

Slip resistance: SRV(dry): 89, SRV(wet): 84 (saw surface)

Apparent density: Mean value: 2768 kg/m3

Abrasion resistance: Mean value of groove length: 14.0mm

Water absorption at atmospheric pressure: 1.0% based on weight, 2.8% based on volume

Frost Resistance: Mean flexual strength after 48 cycles: 18.9 Mpa, -13.7%

Lower expected value after 48 cycles: 15.0 Mpa -11%

4) hainan black basalt normal sizes:

Interior Floor and Wall Basalt Tiles:

305 x 305 x 12mm, 305 x 610 x 12mm, 30 x 60 x 2cm, 60 x 60 x 2cm or cut-to-size according to the project

Exterior hainan black basalt Paver:

10 x 10 x 3cm, 10 x 10 x 10cm, 9 x 9 x 9cm, 40 x 60 x 5cm, 40 x 60 x 8cm or cut-to-size according to the project

hainan black basalt Coping: (L shape in one piece)

500 × 230 × 20mm, with rebate thickness 70mm 600 × 300 × 20mm, with rebate thickness 50mm

800 × 400 × 20mm, with rebate thickness 50mm 1000 × 500 × 20mm, with rebate thickness 50mm

800 × 400 × 20mm, with rebate thickness 70mm 600×300 × 20mm, with rebate thickness 60 mm

5). hainan black basalt Thickness tolerance: +/- 1mm

6). Polishing degree: above 85 degree

7). Quality: the standard for Europe and the United States, a full set of polished resin

8). Finished: Polished, honed, flamed, chiselled, bushhammered, sandblasted, antique, water-jet, etc.