2024 Volume 62 Issue 4 Pages 287-293
This report outlines three similar bleeding test methods for fresh concrete using small containers, namely JIS A 1123 Appendix A (Reference), as well as JCI-S-015-2018 and JASS 5 T-504, the latter two test methods being among the test methods established around the same time as JIS A 1123 Appendix A (Reference). It describes the background leading to the establishment of these test methods, outlines each test method, and compares the test results of each method using the container specified in the main text of JIS A 1123. Using the container specified in the main text of JIS A 1123, all three test methods yielded largely similar results, indicating that they are sufficiently accurate for practical use.