U.S. Standard
Cumulative Percent
Cumulative Percent
Sieve Number
by Weight Passing
by Weight Retained
_______________
___________________
______________________
0.600 mm
55-80
20-45
0.300 mm
30-55
45-70
0.150 mm
10-30
70-90
0.075 mm
0-10
90-100
U.S. Standard
Cumulative Percent
Cumulative Percent
Sieve Number
by Weight Passing
by Weight Retained
_______________
___________________
______________________
8
100
0
16
95-100
0-5
30
55-80
20-45
50
30-55
45-70
100
10-30
70-90
200
0-10
90-100
The sand shall have a fineness modulus of not less than 1.30 nor more than
2.10. Sand grading shown above may be modified with the approval of the
Contracting Officer. Mortar test specimens made with the modified sand
shall exhibit compressive strength equal to or greater than that exhibited
by similar specimens made with sand meeting grading and other requirements
shown above.
2.1.2
Reinforcement
Materials, assembly, and placement of reinforcement shall conform to the
requirements of Section [03300A CAST-IN-PLACE STRUCTURAL CONCRETE] [_____].
2.1.3
Casings
Casings shall be approved [steel] [_____] as soil warrants. Cylinder
casings shall be of sufficient strength and rigidity to withstand all
installation stresses, to prevent distortion caused by placing adjacent
piles, and to prevent collapse due to soil or hydrostatic pressure.
PART 3
EXECUTION
3.1
GROUT VOLUME
The volume of grout per linear meter foot of pile shall be not less than
the volume of grout per meter foot of test piles. All volume measurements
shall be made in the presence of the Contracting Officer's representative.
3.2
INSTALLATI0N
Install piles after rough grading at pile locations have been completed.
The ground surface at each pile location at the time of augering and
grouting shall be at least 305 mm 12 inches higher than the required pile
cutoff elevation, unless a steel casing will be used, and the augered hole
shall be completely filled with grout. All materials shall be fed to the
mixer accurately measured by weight, except water that may be measured by
volume. The order of placing the materials shall be as follows: (1)
water, (2) fluidifier, and (3) other solids in order of increasing particle
size. Time of mixing shall not be less than 1 minute. [Do not proceed
with the installation of contract piles within any area of substantially
SECTION 02465
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