Question 3
State two effect of too much water in a concrete mix.
State three methods of protecting newly constructed substructural walls from damage.
List five items in the apparatus used for conducting a slump test on fresh concrete
Majority of the candidates were able to
- State two effect of too much water in a concrete mix.
- State three methods of protecting newly constructed substructural walls from damage.
However, most of them failed to list five items in the apparatus used for conducting a slump test on fresh concrete
The expected response to question 3 (c) is as given below.
Apparatus used for Conducting Slump Test:
- Slump cone
- Straight edge
- Tape measure/rule
- Flat wooden/metal base
- Compacting rod/ tamping rod.