Per §5.4.1, a SHEAR slump (rather than a true slump) in the slump test…

Question

Per §5.4.1, a SHEAR slump (rather than a true slump) in the slump test typically indicates:

Accepted Answer

B. {'text': 'A lack of cohesion / harsh mix that may segregate', 'label': 'B'}

1. §5.4.1: 'Shear Slump often indicates lack of cohesion. It tends to indicate harsh mixes or mixes prone to segregation. It may indicate that the concrete is not suitable for placement.'
2. True slump = general subsidence of a plastic mix. Collapse slump = lean / harsh / wet mix.
_Source: IGNOU ET-522 Block-2 Unit-5 Workability & Fresh Concrete-I, §5.4.1 and Fig. 5.1, pp. 8-9_

Answer

{'text': 'A very stiff and highly cohesive mix', 'label': 'A'}

Answer

{'text': 'A perfectly placed mix ready for vibration', 'label': 'C'}

Answer

{'text': 'A high strength and durable concrete in service', 'label': 'D'}