Method for improving workability of inorganic binder composition, and inorganic binder composition
AssigneeSika Technology AG
InventorsKenta ODA, Kaname SAITOH, Atsushi TAMURA, Noriyuki ONODA
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Abstract
A method for improving the workability of an inorganic binder composition, and an inorganic binder composition. The method for improving the workability of an inorganic binder composition comprises: (a) providing a dispersant; (b) providing an inorganic binder composition; and (c) intermilling and/or intermixing the dispersant provided in step (a) and the inorganic binder composition provided in step (b), wherein the dispersant is a phenolic resin-based dispersant that is obtained via polycondensation of specific monomers.
Claims14
A method for improving the workability of an inorganic binder composition that contains a slag-containing inorganic binder, comprising the following steps (a) to (c):
- (a) providing a dispersant;
- (b) providing the inorganic binder composition;
- and
- (c) intermilling and/or intermixing the dispersant provided in step (a) and the inorganic binder composition provided in step (b),
- wherein the dispersant is a phenolic resin-based dispersant that is obtained via polycondensation of the following monomers (i) to (v):
- (i) a mol % of a monomer represented by formula (I):
- (ii) b mol % of a monomer represented by formula (II):
- (iii) c mol % of a monomer represented by formula (III):
- (iv) d mol % of a monomer represented by formula (IV):
- (v) e mol % of an aldehyde,
- where
- R1 is H or a C1-4 alkyl group or a C2-5 acyl group,
- R2 is H, an alkali metal ion, an alkaline earth metal ion, or a moiety having the following structure:
- R3 is H or O—R2,
- R4 is H, a C1-4 alkyl group, or a phosphoric acid ester group,
- R5 is H, a C1-18 alkyl group, polyisobutene, or a sulfonic acid moiety,
- A1 and A2 are each independently a CxH2x group, where x=2 to 5,
- n=1 to 350, m=2 to 300,
- the a:b:c:d molar ratio is 0.1 to 2.0:0.1 to 6.0:0.1 to 2.0:0.0 to 0.5, and
- the (a+b+c+d):e molar ratio is 1:10 to 10:1.
An inorganic binder composition, comprising the following:
- (a) 280 to 550 kg/m3 of slag-containing inorganic binder;
- (b) 700 to 950 kg/m3 of fine aggregate,
- (c) 800 to 1100 kg/m3 of coarse aggregate, and
- (d) 0.1 to 5% by mass, of a dispersant, relative to the total dry mass of the inorganic binder;
- the inorganic binder composition wherein the dispersant is a phenolic resin-based dispersant that is obtained via polycondensation of the following monomers (i) to (v):
- (i) a mol % of a monomer represented by formula (I):
- (ii) b mol % of a monomer represented by formula (II):
- (iii) c mol % of a monomer represented by formula (III):
- (iv) d mol % of a monomer represented by formula (IV):
- (v) e mol % of an aldehyde,
- where
- R1 is H or a C1-4 alkyl group or a C2-5 acyl group,
- R2 is H, an alkali metal ion, an alkaline earth metal ion, or a moiety having the following structure:
- R3 is H or O—R2,
- R4 is H, a C1-4 alkyl group, or a phosphoric acid ester group,
- R5 is H, a C1-18 alkyl group, polyisobutene, or a sulfonic acid moiety,
- A1 and A2 are each independently a CxH2x group, where x=2 to 5,
- n=1 to 350, m=2 to 300,
- the a:b:c:d molar ratio is 0.1 to 2.0:0.1 to 6.0:0.1 to 2.0:0.0 to 0.5, and
- the (a+b+c+d):e molar ratio is 1:10 to 10:1.
Dependencies are inferred from the claim text.