Study On The Utilization Of Crushed Stone Fines As Additives For Concrete -Study on test methods of grading, specific surface, and amount of clay ratio of crushed stone fines-

摘要

Studies on test methods of grading, specific surface, and amount of clay ratio of crushed stone fines as additives for concrete were carried out, and the on following three findings were obtained. 1. The sedimentation method (JIS A 1204) can be applied to evaluate the grading of crushed stone fines. 2. When the specific surface of crushed stone fines is evaluated by the blaine method (JIS R 5201), the applied confirmation is done beforehand. 3. The possibility that the clay content of crushed stone fines can be evaluated is high by the methylene blue adsorption amount method or the sand equivalent value method.