74018777
Jan 16, 1990
Oct 2, 1990
concrete admixtures; chemical additives for addition to concrete and to cementitious mixtures to affect desired changes in properties, for example to enhance strength, and/or to reduce permeability, and/or to increase freeze/thaw resistance, and/or to improve workability, and/or to control set rate, and/or to reduce mix water requirements and/or to control air entrainment; polymerbased admixtures for addition to concrete
Chemicals