Routine testing items for admixture testing: chloride ion content, alkali content, viscosity ratio, bleeding rate ratio, setting time difference, compressive strength, shrinkage ratio, flexural strength, sulfur trioxide content, pH value, solid content, etc. Sample introduction: Admixtures are chemical substances that are added during the mixing process of concrete, accounting for less than 5% of the cement mass, and can significantly improve the performance of concrete. Admixtures have a certain improvement effect on the carbonation resistance of concrete, and there is a linear relationship between the carbonation depth and porosity of concrete. The product quality of admixtures must be qualified and tested before use, with a factory quality certificate and test report. The user unit should carefully review the test report and factory quality certificate of the admixture, check whether the required test items are complete, whether the test numbers, signatures, and seals are complete, whether the measured values meet the technical requirements of the specifications and design, and whether the conclusions are clear. For projects that do not meet the requirements, a retest should be conducted in a timely manner or reported to the relevant engineering technical responsible person for handling  &Nbsp&Nbsp&Nbsp; Scope of test Viscosity modified material Release agent Antifreeze agent Waterproof agent Expansion agent Anchorage agent Industrial sodium silicate air tight agent Concrete interface treatment agent Curing agent Air entraining agent Water reducing agent Concrete anti-corrosion rust inhibitor Accelerating agent Curing agent foam concrete foam agent Pumping agent&Nbsp&Nbsp&Nbsp&Nbsp; Frequently inspected items: chloride ion content, alkali content, viscosity ratio, bleeding rate, setting time difference, compressive strength shrinkage ratio, flexural strength, sulfur trioxide content, pH value, solid content, density reduction rate, water content, effect of gas content on steel corrosion, fineness, corrosion resistance coefficient, shear bonding strength, tensile bonding strength, limited expansion rate, loss on ignition, water content&Nbsp&Nbsp&Nbsp&Nbsp; The above article is a partial list. For more testing needs and details, please consult the online consultant of the free consulting agency: 15201733840 (phone and WeChat). We conduct testing on the top 100 inspection websites - issuing authoritative testing reports has legal effect.