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GS1
0,04 – 2,5
mm
Standard granules GS1
Descriptions and a table of characteristics of KERWOOD® foamed ceramic microspheres
A foamed ceramic microsphere with average technical characteristics. It was developed as a basic universal granule for a wide range of applications with a size of 0.04 — 2.5 mm. It is produced serially, being a standard warehouse item.
- The most widely-distributed type of microspheres
| Index | Fraction, mm | |||||
| 0.04 – 0.12 | 0.1 – 0.3 | 0.3 – 0.6 | 0.1 – 0.6 | 0.6 – 1.25 | 1.25 – 2.5 | |
| Article | GS1 0040-012 / 530 |
GS1 01-03 / 440 |
GS1 03-06 / 380 |
GS1 01-06 / 420 |
GS1 06-125 / 330 |
GS1 125-250 / 300 |
| Apparent density, kg / m3 |
530±70 | 440±40 | 380±30 | 420±40 | 330±30 | 300±20 |
| Volume (apparent) density of granules, kg / m3 |
1100±140 | 940±100 | 610±40 | 750±70 | 480±40 | 420±40 |
| Compression strength in the cylinder, MPa, not less than (GOST 9758-2012, cylinder diameter 150 mm) |
7 | 2.5 | 2.2 | 1.7 | 1.3 | 1.2 |
| Coefficient of thermal conductivity, W / (m ·°K), not more than |
0.09 | 0.085 | 0.08 | 0.083 | 0.077 | 0.072 |
| Water absorption for 24 hours by weight, %, not more than |
8 | 7 | 5 | 6 | 4 | 4 |
| Resistance to silicate decay, %, not more than |
2.5 | |||||
| Content of water-soluble sulphurous and sulphate compounds, %, not more than |
1 | |||||
| Frost resistance, loss of mass after 25 cycles of freezing, %, not more than |
5 | |||||
| Loss of mass during boiling, %, not more than |
5 | |||||
| Humidity, %, not more than | 0.5 | |||||
| Activity of natural radionuclides, Bq / kg, not more than |
370 | |||||
Tests in accordance with the Russian State Standard (GOST 9758-2012), except for water absorption;
Determination of water absorption according to DIN 4226-3-2002;
Determination of activity of natural radionuclides according to the Russian State Standard (GOST 30108-94);
Coefficient of compaction is 1.3;
Apparent density is determined with free filling, in the unconsolidated state of the material.
