Patent ID: 11878942
Assignee: SIKA TECHNOLOGY AG
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A cementitious composition essentially consisting of a first component A comprising
a) 15-69 w % of at least one ordinary Portland cement (OPC),
b) 1-25 w % of at least one cement selected from calcium aluminate cement (CAC) and/or calcium sulfoaluminate cement (CSA),
c) 0.1-15 w % of a powder P, selected from the group consisting of carbonates or hydrogen carbonates of alkali and/or alkaline earth metals,
d) optionally 30-70 w % of aggregates,
e) optionally 1-15 w % of other additives selected from the group of plasticizers, superplasticizers, rheology modifiers, retarders, air-entrainers, de-aerating agents, corrosion inhibitors, fibers, synthetic organic polymers, expansion producing additives, pigments, strength enhancers, waterproofing additives, alkali-aggregate reaction inhibitors, chromate reducers, and/or anti-microbial agents,
each based on the total weight of the component A,
and a second component B comprising
f) 30-90 w % of at least one accelerator selected from the group consisting of alkanolamines, halides, formats, acetates, oxalates, nitrites, nitrates, thiocyanates, sulphates, thiosulphates, glycerol, α-hydroxycarboxylic acids, and calcium aluminates,
g) 0.1-5 w % of an anti-freeze agent which is selected from the group of sodium chloride, urea, and glycols,
h) 10-70 w % of water, and
i) optionally other additives selected from the group of plasticizers, superplasticizers, rheology modifiers, retarders, air-entrainers, de-aerating agents, corrosion inhibitors, fibers, synthetic organic polymers, expansion producing additives, pigments, strength enhancers, waterproofing additives, alkali-aggregate reaction inhibitors, chromate reducers, and/or anti-microbial agents,
each based on the total weight of the component B.