Standard granules GS1

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.

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  • 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

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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.

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