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Reference.org
Segregation in concrete
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<p>Segregation in concrete is a case of <a href="/facts/Particle_segregation/hsGT0HQ3">particle segregation</a> in <a href="/facts/Concrete/K6whGVNx">concrete</a> applications, in which particulate <a href="/facts/Solid/hj5UsXno">solids</a> tend to segregate by virtue of differences in the size, <a href="/facts/Density/92p6hh9I">density</a>, shape and other properties of particles of which they are composed. when the workability of concrete is high under pouring conditions, or the amount of mortar is larger than the void volume of coarse aggregate, or the particle size of aggregate is not ideal, excessive vibration can cause segregation bleeding or lighter weight </p>