function of admixture in concrete

{"cid":"91221131","title":"White Gluconic Acid Sodium Salt 527-07-1 Admixture In Concrete Powder","imgUrl":"https:\/\/img.chinax.com\/nimg\/69\/02\/fc34446f3a3e09d683a3595679b9-200x200-1.jpg","attrs":{"Price":"500USD","Brand Name":"ATET","Model Number":"SG","Minimum Order Quantity":"1MT","Delivery Time":"7-10DAYS","Certification":"ISO","Place of Origin":"CHINA","Payment Terms":"T\/T, L\/C, D\/A, D\/P, Western Union, MoneyGram","Supply Ability":"3000MT\/MONTH","Packaging Details":"20KG\/BAG,25KG\/BAG,50KG\/BAG,500KG\/BAG,550KG\/BAG,600KG\/BAG,","Description":"White crystalline powder","Assay":"98.0%~102.0%","PH":"6.5-8.5","Reducing substances":"\u22640.5%","Loss on drying":"\u22641.0%","Heavy metals(mg\/kg)":"\u22645","Lead(mg\/kg)":"\u22641","Arsenic(mg\/kg)":"\u22641","Chloride":"\u22640.07%","Sulphate":"\u22640.05%"}}

{"cid":"91195711","title":"HZS50 Multi Functional Concrete Plant Equipment, High Performance Central Mix Concrete Plant","imgUrl":"https:\/\/img.chinax.com\/nimg\/9e\/99\/342f044488d9f926667267721f42-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"ZHENHENG","Model Number":"HZS50","Minimum Order Quantity":"1 set","Delivery Time":"7-15 working days after confirm order","Certification":"SGS, ISO, BV, CE","Place of Origin":"HENAN CHINA","Payment Terms":"L\/C, D\/A, D\/P, T\/T","Supply Ability":"30 sets per month","Packaging Details":"Export standard container: 20GP or 40GP, 40HC","After-sales service provided":"Engineers available to service machinery overseas","Control system":"automatic PLC control","Name":"HZS50 Concrete Batching Plant","Type":"Fixed Concrete batching plant","Color":"Customized","Discharge height":"3800mm","Patent":"30%-40% Higher Efficiency","Maximum aggregate":"80\/60mm"}}