Instruction Manual

Report
The report shall include the following:
Data on Concrete Mixture
• Typeandproportionsofcement,neaggregate,coarseaggregate(including
maximum size and grading of aggregates) and the ratio of net water content to
cement content.
• Name,natureandpercentageofactiveingredientsbyweightofcement,ofany
addition or admixture used.
• Aircontentoffreshconcreteandmethodofdetermination.
• Consistencyofconcreteasdeterminedbytheslumporothertestforconsistency.
• Temperatureofmortaraftersieving.
• Dateandambienttemperatureduringthetestperiod.
Curves
For each variable and condition of concrete as specified in the Number of Specimens
section, the results from each of three or more rate of hardening tests shall be plotted
separately, showing penetration resistance in pounds per square inch or (mega-Newton’s
per square meter) as the ordinate and elapsed time in hours and minutes as the abscissa,
where 500 psi (3.5 MN/m
2
) and 1 hour are represented by not less than 1/2 inch (13 mm).
Time of Setting Results
The following informations are required in the report on the time of setting tests:
• Agraphorplotofpenetrationresistanceversuselapsedtimeforeachtime
of setting test.
• Thetimesofinitialandnalsettingforeachtest,reportedinhoursandminutesto
the nearest minute.
• Theaveragetimesofinitialandnalsettingforeachtestcondition,reportedin
hours and minutes to the nearest 5 minutes.
Gauge Adjustment
The gauge on this instrument may not go to the zero setting. This is caused by
either one or both of the following:
• Thezeroisoffsettocompensatefortheweightoftheplungerassembly.
• Tocalibratethissystemaccuratelyintherangefrom20to180lbs.,thezero
may shift to a positive number.
Note: The gauge and cylinder assembly has been vacuumed and filled with
hydraulic oil and thus becomes a closed system. If this integrity is not preserved,
any air will void the calibration.