ABBREVIATED
REGULAR TESTS
TESTS
ALLOWABLE
ALLOWABLE
MAXIMUM RANGE FOR
MAXIMUM RANGE
PARAMETER
AVERAGE OF 3 BATCHES
FOR 1 BATCH
Slump, mm
25
---
Coarse aggregate, percent
6.0
6.0
Compressive strength at
7 days, percent
10.0
10.0
Water content, percent
1.5
---
**************************************************************************
NOTE: The following table to be used with IP units.
**************************************************************************
ABBREVIATED
REGULAR TESTS
TESTS
ALLOWABLE
ALLOWABLE
MAXIMUM RANGE FOR
MAXIMUM RANGE
PARAMETER
AVERAGE OF 3 BATCHES
FOR 1 BATCH
Unit weight of air-free
mortar, lb/cu ft
2.0
2.0
Air content, percent
1.0
---
Slump, inches
1.0
---
Coarse aggregate, percent
6.0
6.0
Compressive strength at
7 days, percent
10.0
10.0
Water content, percent
1.5
---
3.1.3.2
[Truck Mixers
Truck mixers and the mixing of concrete therein shall conform to the
requirements of ASTM C 94/C 94M. A truck mixer may be used for complete
mixing (transit-mixed) or to finish the partial mixing done in a stationary
mixer (shrink-mixed). Each truck shall be equipped with two counters from
which it shall be possible to determine the number of revolutions at mixing
speed and the number of revolutions at agitating speed. Truck mixers shall
not be used to mix or agitate concrete with greater than 37.5 mm 1-1/2 inch
nominal maximum-size aggregate or concrete with a slump of 50 mm 2 inches
or less. The acceptability of truck mixers shall be determined by
uniformity tests in accordance with ASTM C 94/C 94M.]
3.1.4
Sampling Facilities
3.1.4.1
Concrete
The Contractor shall provide suitable facilities and labor for obtaining
representative samples of concrete in accordance with ASTM C 172 for
SECTION 03700
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