CCIL UPDATED EXAMS SCRIPT ALL QUESTIONS
AND ANSWERS SURE A+
✔✔Vibrating beams - ✔✔The diameter of the element or thickness of a square vibrating
element shall not exceed 1/3 the width of the mould.
✔✔External vibrators - ✔✔Table/plank type. Minimum 60Hz. Clamp mould securely to
apparatus.
✔✔Head mallet weight - ✔✔0.6 kg +/- 0.3 kg.
✔✔Strike-off Bar - ✔✔Steel. 6mm x 25mm x 450mm.
✔✔Water Tank - ✔✔23 +/- 2 degrees C. Temperatue readings must be taken twice
daily and be within 0.5 degrees accuracy.
✔✔Water Tank Cleaning - ✔✔When water contains 3g/L Ca at intervals not to exceed
24 months.
✔✔Water Tank Room - ✔✔95% or greater humidity, 23 +/- 2 degrees C, temperature
readings twice daily 5 days a week within 0.5 degrees C accuracy.
, ✔✔Temperature measuring - ✔✔Devices must be able to measure temperatures
between 0 and 50 degrees C, accurate to 0.5 degrees C.
✔✔Moisture Room - ✔✔Temperature must be read every 15 mins by a recorder- Must
be accurate to 1 degree C.
✔✔Verify temperature recorders - ✔✔Every 6 months or whenever there is a question
of accuracy
✔✔Reference Temperature Measuring Device - ✔✔Available for calibration of other
devices, MUST be accurate to +/- 0.2 degrees C. Must have certificate or document
available for view.
✔✔Specimens must be moulded when? - ✔✔20 minutes after sample time, including
transport and remixing.
✔✔Specimen/Aggregate Size - ✔✔Diameter of a cylindrical specimen, or cross-
sectional dimension of a beam shall be at least 3 times the size of the coarse aggregate
used in the concrete.
✔✔Handpicking - ✔✔Can be used to remove over-sized aggregate before casting
cylinders.
✔✔Cylinder Moulding Location - ✔✔Mould closest to where cylinders will initially cure.
Must stay in cure location for 28 +/- 8 hours.
✔✔Consolidating Test Specimens - ✔✔Rodding used with slump greater than 40,
vibration used with slump equal or less than 40.
✔✔Placing Concrete In Moulds - ✔✔2 or 3 lifts or layers.
✔✔Finishing Mould Surface - ✔✔No depressions larger than 3mm if specified strength
is less than 35 MPa, none larger than 1mm at 35 MPa or greater.
✔✔Finishing Beams - ✔✔Wood float
✔✔Rodding - 100mm cylinder - ✔✔20 strokes/lift
✔✔Rodding - 150mm cylinder - ✔✔25 strokes/lift
✔✔Rodding - 200mm cylinder - ✔✔50 strokes/lift
✔✔Rodding - 250mm cylinder - ✔✔75 strokes/lift
AND ANSWERS SURE A+
✔✔Vibrating beams - ✔✔The diameter of the element or thickness of a square vibrating
element shall not exceed 1/3 the width of the mould.
✔✔External vibrators - ✔✔Table/plank type. Minimum 60Hz. Clamp mould securely to
apparatus.
✔✔Head mallet weight - ✔✔0.6 kg +/- 0.3 kg.
✔✔Strike-off Bar - ✔✔Steel. 6mm x 25mm x 450mm.
✔✔Water Tank - ✔✔23 +/- 2 degrees C. Temperatue readings must be taken twice
daily and be within 0.5 degrees accuracy.
✔✔Water Tank Cleaning - ✔✔When water contains 3g/L Ca at intervals not to exceed
24 months.
✔✔Water Tank Room - ✔✔95% or greater humidity, 23 +/- 2 degrees C, temperature
readings twice daily 5 days a week within 0.5 degrees C accuracy.
, ✔✔Temperature measuring - ✔✔Devices must be able to measure temperatures
between 0 and 50 degrees C, accurate to 0.5 degrees C.
✔✔Moisture Room - ✔✔Temperature must be read every 15 mins by a recorder- Must
be accurate to 1 degree C.
✔✔Verify temperature recorders - ✔✔Every 6 months or whenever there is a question
of accuracy
✔✔Reference Temperature Measuring Device - ✔✔Available for calibration of other
devices, MUST be accurate to +/- 0.2 degrees C. Must have certificate or document
available for view.
✔✔Specimens must be moulded when? - ✔✔20 minutes after sample time, including
transport and remixing.
✔✔Specimen/Aggregate Size - ✔✔Diameter of a cylindrical specimen, or cross-
sectional dimension of a beam shall be at least 3 times the size of the coarse aggregate
used in the concrete.
✔✔Handpicking - ✔✔Can be used to remove over-sized aggregate before casting
cylinders.
✔✔Cylinder Moulding Location - ✔✔Mould closest to where cylinders will initially cure.
Must stay in cure location for 28 +/- 8 hours.
✔✔Consolidating Test Specimens - ✔✔Rodding used with slump greater than 40,
vibration used with slump equal or less than 40.
✔✔Placing Concrete In Moulds - ✔✔2 or 3 lifts or layers.
✔✔Finishing Mould Surface - ✔✔No depressions larger than 3mm if specified strength
is less than 35 MPa, none larger than 1mm at 35 MPa or greater.
✔✔Finishing Beams - ✔✔Wood float
✔✔Rodding - 100mm cylinder - ✔✔20 strokes/lift
✔✔Rodding - 150mm cylinder - ✔✔25 strokes/lift
✔✔Rodding - 200mm cylinder - ✔✔50 strokes/lift
✔✔Rodding - 250mm cylinder - ✔✔75 strokes/lift
