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US 12,338,178 B2Granted
Noise reducing mortar composition
AssigneeSika Technology AG
InventorsLuigi Perrino, Tiziano Rattighieri, Alberto Borghi, Luz Granizo
Life of this patent
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Abstract
A mortar composition, in particular a leveling mortar composition, including: a) 10-50 wt. % of a hydraulic binder, b) 10-25 wt. % of lightweight aggregates, c) 30-50 wt. % of further aggregates which have a particle density that is higher than the particle density of the lightweight aggregates, d) 0.5-5 wt. % of a polymer.
Claims10
A mortar composition, comprising:
- 15-40 wt. %, of calcium aluminate cement and/or sulphoaluminate cement;
- 3-18 wt. %, Portland cement;
- optionally 0.1-10 wt. % latent hydraulic and/or pozzolanic binder materials, especially slag and/or fly ash;
- 10-25 wt. % of lightweight aggregates, comprising porous inorganic particles and/or hollow inorganic particles;
- 30-50 wt. % of further aggregates which have a particle density that is higher than the particle density of the lightweight aggregates, and which aggregates comprise quartz, sand and/or calcium carbonate;
- 0.5-5 wt. % of a polymer which is a water soluble or water redispersible polymer;
- and
- 0-10 wt. %, of one or more additives;
- whereby all amounts are with respect to the total weight of the mortar composition in dry state, and
- wherein the mortar composition comprises Portland cement and aluminate cement and/or sulphoaluminate cement with a weight ratio of Portland cement to aluminate cement and/or sulphoaluminate cement from 0.05-3.
7 more elements
Dependencies are inferred from the claim text.