The addition of Admixtures in the form of Plasticizers (Water reducers) are done to concrete to achieve some desired properties, and are listed as options. Identify the False /incorrect answer.
1
To achieve the same workability by decreasing the cement content so as to reduce the heat of hydration in mass concrete.
2
To have a delay in the setting time of concrete, so as to achieve a delay in hardening, when concreting is done in hot weather.
3
To increase the workability so as to ease placing in inaccessible locations.
4
To achieve higher strength by decreasing the water cement ratio at the same workability as an admixture- free mix.