Dry mortar mixture with grains of expanded glass
AssigneeCeves-Vergeer BV
InventorJeroen Borger
Life of this patent
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Abstract
Dry mortar mixture characterized by a glass mixture of expanded glass beads with a grain size d/D 0/8, mixed in a ratio of between 1:1 and 1:3, for example 1:2 with a dust poor or dust free binding mixture of hydraulic binders and stone granules in the weight ratio of 1:2 to 1:4. The glass has a discontinuous grain distribution. For the glass mixture the fractions 0.5/1.0 and 2.0/4.0 are present while the fractions 0.25/0.5 and 1.0/2.0 are absent. For the glass mixture preferably all grain sizes between 1.0 and 2.0 mm are absent and the grain size distribution is around an average, so that an open structure is obtained.
Claims6
A dry mortar mixture comprising:
- a glass granulate comprising a glass mixture of expanded glass beads, said glass granulate having a grain size with a discontinuous grain distribution d/D 0/4, such that said glass granulate has grains of at least 0 and at most 4.0 millimeter diameter;
- and
- stone granules comprising a dust free binding mixture of hydraulic binders and sand,
- wherein:
- said glass granulate is mixed in a ratio of between 1:1 and 1:3 with said stone granules, said stone granules being in a weight ratio of between 1:2 and 1:4;
- and
- wherein for the glass mixture:
- the d/D fractions 0.5/1.0 and 2.0/4.0 are present while the fractions 0.25/0.5 and 1.0/2.0 are absent, such that for the glass mixture all grain sizes between 1.0 and 2.0 mm are absent,
- the grain size distribution is around an average, so that an open structure is obtained, and
- a fraction relates to an undivided group of grain sizes.
A dry mortar mixture comprising:
- a glass granulate that comprises a glass mixture of expanded glass beads, having a grain size with a discontinuous grain distribution d/D 0/4, such that the glass granulate comprises grains of at least 0 and at most 4.0 millimeter diameter;
- and
- a dust free binding mixture,
- wherein said glass granulate is mixed in a ratio of between 1:1 and 1:3 with said dust free binding mixture,
- said dust free binding mixture comprising hydraulic binders and sand in a weight ratio of between 1:2 and 1:4;
- wherein for the glass mixture d/D fractions 0.5/1.0 and 2.0/4.0 are present while the fractions 0.25/0.5 and 1.0/2.0 are absent, such that for the glass mixture all grain sizes between 1.0 and 2.0 mm are absent and the two fractions are present in equal mass percentage, wherein:
- the grain size distribution is around an average, so that an open structure is obtained, and
- a fraction relates to an undivided group of grain sizes;
- said dust free binding mixture further comprising a group of additives at a minimum of 0.1% by weight per additive, said group of additives comprising:
- elastomers in powder form;
- in water re-dispersible resin powder;
- alkali metal salt, anti-foaming agent;
- aniogeen surfactant;
- hydroxyl carboxylic acid;
- and
- one of preservatives, thickeners, liquefaction agents;
- wherein:
- for the glass mixture a grain size associated with a median of the summed mass percentage of the grains of the glass is between 1.0 and 3.0 mm;
- the hydraulic binder contains Portland cement;
- the binder is present in an excess;
- and
- the sand has a grain size of at least 0.05 mm and not more than 3 mm.
Dependencies are inferred from the claim text.