Four additive families covering early strength, strengthening, fast setting and fast hardening —the areas we have spent our whole R&D effort on.
Powder admixtures, supplied in 25 kg bags and 1000 kg bulk bags, with mix-design support for your own raw materials.
Raise compressive and flexural strength in cement and mortar systems —or hold the target grade while reducing cement content. Used by dry-mix producers working to a cost target.
Ask about strengtheners →Controlled fast setting and rapid hardening on ordinary Portland cement, with the set time and demould window moving with the dose rate. Our YJ-51YYLX sits here.
YJ-51YYLX specification →Built for fast demoulding and fast traffic opening —precast beds, repair mortar and emergency leak sealing where the schedule, not the chemistry, is the constraint.
YJ-K308 specification →Set control and strength development for gypsum-based dry-mix products, including retarders and strength builders for plaster and bonding compounds.
Ask about gypsum additives →Full technical data, dosage guidance and handling instructions for each product below.
Replaces special rapid-hardening cement. Adjustable demoulding window from 20 minutes to 2 hours, 30 MPa at 24 hours, no late-age strength retrogression.
One admixture, plus ordinary Portland cement and clean sand, produces a rapid repair mortar. Foot traffic at 1 hour, vehicles at 2 hours, C60-class strength achievable.
Cement brand, aggregate grading, workshop temperature and target cycle all move the formulation. If none of the published products is quite right, describe the job and we will develop against it.
Send us your cement grade and what you are casting. We will tell you which YJ product applies —or tell you if none of them do.