The　cement　industry　is　one　of　the　major　contributors　to　the　world＇s　CO2　emissions;　the　theoretical　carbon　emissions　from　Portland　cement　(PC)　and　calcium　sulphoaluminate　(CSA)　cement　are　535kg　per　ton　and　305kg　per　ton,　respectively,　amounting　to　at　least　5%　of　global　anthropogenic　emissions.　More　recently,　a　High-Belite　calcium　sulphoaluminate　(HB-CSA)　cement　has　been　developed,　which　the　CO2　emissions　are　lower　than　PC　and　CSA　cement.　Beyond　that,　this　kind　of　cement　shows　excellent　mechanical　properties,　volume　stability,　and　good　resistance　to　chemical　attacks.　But　the　rapid　hydration　and　early　setting　times　severely　hinder　the　application　of　this　green　low-carbon　cement　in　concrete.　Therefore,　this　study　investigated　the　use　of　citric　acid　(CA)　and　sodium　gluconate　(SG)　with　HB-CSA　cement,　tracking　the　effects　of　dosage　on　hydration,　setting,　fluidity,　and　strengths.　Results　showed　CA　effectively　inhibited　early　hydration　of　the　HB-CSA　cement　and　successfully　retarded　the　setting　time　while　the　retardation　effect　of　SG　was　limited.　Increasing　CA　and　SG　dosage　altered　hardened　binder　microstructure,　reducing　early-age　compressive　strengths　and　hydration　heat　rate,　improving　late-age　compressive　strengths.　The　difference　in　adsorption　rate　between　CA　and　SG　may　be　an　important　factor　affecting　their　retardation　effect　of　hydration.　©　2022　American　Concrete　Institute.　All　rights　reserved.