This study suggests the solution through the field substantiation test of the banking structure treated with composite slag and neutralizing and coating agent to utilize the tertiary mudstone as civil engineering material.
Slacking, swelling, and acid...
This study suggests the solution through the field substantiation test of the banking structure treated with composite slag and neutralizing and coating agent to utilize the tertiary mudstone as civil engineering material.
Slacking, swelling, and acid drainage were expected as a result of laboratory tests for the physical, mechanical and chemical characteristics of the tertiary mudstones in Pohang, Korea. In order to solve the expected problem, the tertiary mudstone was mixed with composite slag by 10%, and the neutralizing and coating agent was used to generate latent hydraulic property and to prevent natural weathering.
Three banking structures were constructed as one mixing designs pre-processing section, remainder post-processing section, and temporary- stacking section. In addition, a monitoring measurement system was installed to measure pH, water content, and settlement to check the constructability of the structure.
As a result of measurement, the pre-processing section remained stable due to the mixing design. On the other hand, the post-processing section, which natural weathering proceeded rapidly, secured stability and constructability through neutralizing and coating agent injection test. As temporary-stacking section was confirmed temporary neutralization and coating effects, the solutions proposed to utilize the tertiary mudstone as a civil engineering material are certainly proved.