Flowable compsn for structural materials, esp flooring - having high early strength without affecting the flowability

摘要

Flowable compsns. for structural materials having high early strength comprise (a) gypsum beta-hemihydrate (pref. 70-95 pts. wt) (b) high-aluminacement and/or Portland cement (pref. 5-30 pts. wt); (c) formaldehyde/amino s-triazine condensation prod. contg. =2 NH2 gps. per triazine ring, modified with sulphite or a sulphonic acid (pref. 0.2-5 pts wt); (d) opt. a setting retardant (pref. 0.2 pts. wt.) and/or filler (pref. 0-90 pts wt) and (e) water is an amt. ensuring good flowability of the compsn. Used as levelling-up compsns for e.g. plaster floors, etc. High early strength is achieved without affecting the flowability of the compsn.