Per §5.6, remedial measures listed by the source for excessive bleedin…

Question

Per §5.6, remedial measures listed by the source for excessive bleeding include all the following EXCEPT:

Accepted Answer

A. {'text': 'Increasing the water-cement ratio significantly above 0.7', 'label': 'A'}

1. §5.6 (Remedial Measures): (1) controlled revibration of concrete and delayed finishing reduce harmful effects, and (2) bleeding can be reduced by use of finely divided pozzolonic material, finer cement, low alkali content cement and air-entraining agents.
2. Increasing w/c above 0.7 INCREASES bleeding (continuous channels) — it is the cause, not the remedy.
_Source: IGNOU ET-522 Block-2 Unit-5 Workability & Fresh Concrete-I, §5.6 (Remedial Measures) and (Permeability), p. 15_

Answer

{'text': 'Use of cement with low alkali content', 'label': 'B'}

Answer

{'text': 'Use of air-entraining agents in the mix', 'label': 'C'}

Answer

{'text': 'Use of finely divided pozzolonic material in the mix', 'label': 'D'}