BINDING AGENT FOR LAYING SOLUTIONS Russian patent published in 2005 - IPC

FIELD: building materials.

SUBSTANCE: invention relates to the binding agent composition. Binding agent for laying solution comprising Portland cement clinker, gypsum and mineral additive contains adsorbent, plasticizing agent and ground silica-containing mineral. Zeolite is used as adsorbent. Powdered brucite is added to mineral additive additionally, and semi-roasted dolomite is used as a plasticizing agent in the following ratio of components, wt.-%: Portland cement clinker, 35-42; gypsum, 3-5; semi-roasted dolomite, 27-35; powdered brucite, 6-10; zeolite, 5-7; ground silica-containing mineral, 15-17. Invention can be used in laying solution designated for laying external brick walls of residences and civil buildings. Invention provides reducing heat conductivity due to decreasing water content in cement stone, retention of high strength indices that are provides by hydration processes with release of unbound water and its adsorbing.

EFFECT: improved and valuable properties of binding agent.

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