Analysis of common problems with admixtures and concrete and countermeasures

common problems with mixing admixtures and fresh concrete concrete segregation and bleeding problem: 1 slump test management center there are stone deposits and water folded out from the edges; 2. water layer is visible on the surface during transportation, especially when using dump trucks and hand trucks; 3. dissolved water on the surface after forming layer. reasons: 1. the slump is large and the sand preparation…