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In civil Engineering (Concrete structures), What is the indication of shear slump and collapse slump in slump tests?

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تم إضافة السؤال من قبل Muhammad Shakeel , CAD Design Manager , M/S zeeruk Intl.
تاريخ النشر: 2015/02/24
Nelio Beleo
من قبل Nelio Beleo , Civil Inspector , Petrojet

Shear slump indicates that the concrete mix has to much coarse aggregates or it is not properly mixed during sampling.

Collapse slump indicates that the concrete has high water-cement ratio because of mixing too much water or adding too much chemical admixture.

SREEJITH KUNNATHULLY
من قبل SREEJITH KUNNATHULLY , Sr. Landscape Engineer , Arcadis

Shear slump indicates that the concrete lacks cohesion. It may undergo segregation and bleeding and thus is undesirable for the durability of concrete.

Collapse slump indicates that concrete mix is too wet and the mix is regarded as harsh and lean.

MUHAMMATH RIYAS
من قبل MUHAMMATH RIYAS , Senior QC engineer , Al ayuni investment & contracting co

In a shear slump the top portion of the concrete shears off and slips sideways it indicates the concrete mix is lack of cohesion & In collapse slump the slump collapses completely indicates the concrete mix is too wet

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