The present invention provides pourable aqueous dispersion compositions of (a) one or more cellulose ethers and (b) one or more superplasticizers stably suspended in an aqueous dispersion of (c) one or more stabilizers in the form of a colloidal dispersion, further containing (d) one or more monovalent salts, such as an alkali metal salt. The minimum total amount of the cellulose ether, as solids in the pourable aqueous dispersion is 8 wt. % or, preferably, 12 wt. % or, preferably, 14 wt. % and the solids weight ratio of total cellulose ether to salt is close to 1:1, ranging, for example, from 0.7:1 to 1.4:1. Further, the amounts of the (a) one or more cellulose ethers and the (b) one or more superplasticizers enable the provision of pourable aqueous dispersion compositions effective for use in cement applications by simple dilution with water.