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US 2022/0017415 A1Published application
Expanded and expandable granular materials
AssigneeImerTech SAS
InventorsKonstantina PAPAKONSTANTINOU, Thanasis KARALIS, Christos DEDELOUDIS, Panagiotis ANGELOPOULOS, Ioannis PASPALIARIS, Maria TAXIARCHOU, Anna GAKI
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Abstract
A method of manufacturing an expanded granular material comprises: forming a mixture comprising a silicate material, an alkali compound and water; curing the mixture to form a solid precursor; crushing and/or milling the solid precursor to form an expandable granular material; and heating the granular material to form an expanded granular material.
Claims20
A method of manufacturing an expanded granular material, the method comprising:
- forming a mixture comprising:
- a silicate material;
- an alkali compound;
- and
- water;
- curing the mixture to form a solid precursor;
- crushing and/or milling the solid precursor to form an expandable granular material;
- and
- heating the expandable granular material to form an expanded granular material.
6 more elements
An expanded granular material having:
- a loose bulk density, measured according to PI 200-77, of from about 15 kg/m3 to about 450 kg/m3;
- a compaction resistance, measured according to PI 306-80, of from about 3 PSI to about 350 PSI at 2″;
- and/or
- a thermal conductivity, measured according to EN 12667, of from about 0.0300 W/mK to about 0.0700 W/mk.
1 more element
An expandable material comprising:
- from about 0.1 wt. % to about 25 wt. of X2O, wherein X is an alkali metal such as Na or Li;
- from about 0.1 wt. % to about 30 wt. of Al2O3;
- from about 30 wt. % to about 80 wt. of SiO2;
- and
- from about 10 wt. % to about 30 wt. of H2O;
- wherein the expandable material optionally comprises less than about 5 wt. % B2O3.
3 more elements
(canceled)
Dependencies are inferred from the claim text.