Research and Verification on Quality Control Method of Concrete Admixture by Infrared Spectrum

Through infrared spectroscopy, the method of evaluating the quality of concrete admixture by using correlation coefficient was studied, and the best sample concentration of infrared test was determined. Infrared scanning was carried out on the additives produced by different manufacturers, and statistical analysis was used to determine the mean value of correlation coefficient. Finally, five samples to be tested were selected to verify the method, and compared with the correlation between the results of conventional slurry test and infrared spectrum quality control. Finally, it was determined that it was feasible to use infrared spectrum to control the quality of concrete admixture.