Applied Study on Nondispersible Underwater Concrete
LIU Jun
FANG Hui-qi
HE Hong-zhu
Abstract：The mixes of normal concrete is a kind of coarse dispersible system. The cohesion betweenits grains is small. When the normal concrete is placed directly in water, the mixes will be dispersedeasily by the action of water, leading to the loss of cement, segregation and layering of sand and stone,which changes the concrete grading composition, makes its strength decrease and pollutes water quali-ty. The nondispersible underwater concrete (NDC) is made by adding flocculating agent or polymeriz-er, which emphatically improves the composition, mixing proportion and properties of concrete. NDCincreases the cohesion and anti-water dispersity of concrete itself, and radically solves the quality prob-lem of underwater concrete
Keywords：underwater concreteflocculating agentpolymerizernondispersible underwater concrete(NDC)
Publication Date：2000-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 360-365 )