[HISTORY: Adopted by the Board of Trustees of the Village of Lindenhurst 8-28-1968
by Ord. No. 1-1968 as Ch. 96 of the 1968 Code of the Village
of Lindenhurst. Amendments noted where applicable.]
A.
The subgrade area shall be cleared of fences, trees,
logs, stumps, brush, vegetation, rubbish and any other perishable or objectional
matter. The area shall be stripped of all topsoil, and any other unsuitable
material encountered shall be removed and replaced with material suitable
for fill under pavements.
B.
The subgrade shall be properly prepared by bringing to
the designed line and grade the suitable materials available at hand, if any,
or such other suitable materials as loam, course sand, gravel, stone dust
or cinders. These subgrade materials shall be mixed, stabilized, compacted
and rolled with a ten-ton roller, in such a manner as to produce a stable
surface upon which the stone base will be placed. If materials are sandy or
of such consistency that they will not produce a hard surface, additional
loam of approved quality free from all vegetable or other foreign matter shall
be added. The subgrade shall be rolled thoroughly with a roller weighing not
less than 10 tons until the entire surface is firm and will not heave or be
otherwise distorted by the rolling operation. If any soft or other unstable
areas develop within the surface limits of the pavement, the deleterious material
shall be removed and suitable material replaced and rolled so that a proper
subgrade true to line and grade is produced. Before the stone base is placed,
this subgrade must be approved and accepted by the Engineer or Superintendent
of Public Works.
A.
Upon the subgrade, a base course of broken stone shall
be uniformly placed so that after rolling and compacting a minimum depth of
four and one-half (4 1/2) inches is obtained. The broken stone shall
consist of clean hard, tough durable traprock resistant to wear and frost
and free from an injurious amount of deleterious substances. An excess of
flat or elongated fragments will be cause for rejection.
B.
Broken stone shall be free from dust or dust coating
and shall conform to the following sizes:
|
Passing Square Opening
|
Retained Square Opening
|
Percent by Weight
| |
|---|---|---|---|
|
2-inch
|
1 1/2-inch
|
45 to 65
| |
|
1 1/2-inch
|
1-inch
|
35 to 55
| |
|
1-inch
|
0 to 10
|
C.
The stone shall be evenly spread to a thickness that
will produce the required thickness of the course after compaction.
D.
After the foundation course has been laid loose, it shall
be shaped and rolled with a self-power roller weighing at least 10 tons. Rolling
shall be continued until a firm, even surface of the required cross section
is obtained. Any defects in the grade of the surface shall be corrected while
rolling. Should the subgrade material be churned up and mixed with the foundation
course through any reason whatsoever or the surface of the foundation course
become filled with mud or dirt before the course has been filled, rolled and
completed, the affected areas shall be removed and replaced with clean stone.
In confined areas not accessible to rollers, pneumatic tampers shall be used.
E.
Upon the compacted stone base, hot asphalt, of Penetration
Grade 85-100, shall be applied uniformly over the entire surface at the rate
of two gallons per square yard. The asphalt shall be heated to a temperature
of between two hundred seventy-five degrees and three hundred degrees Fahrenheit
(250° and 300° F.) and distributed evenly over the entire surface
by the use of an approved pressure distributor operating under a pressure
of 50 pounds per square inch.
F.
In small areas or adjacent to structures, application
may be made with hand pots. In spreading adjacent strips, the material shall
not lap over the previous application. Adjacent concrete pavement, curbs and
structures shall be protected from asphalt by paper or sand covering.
G.
Asphalt Cement Grade 100-120 will be required in cool
weather, that is below 50° F.; application shall not be made when in temperature
below 35° F.
H.
Immediately after penetrating the stone base, there shall
be evenly distributed broken stone filler at the rate of 40 pounds per square
yard, or more, to the entire surface.
I.
Broken stone filler shall be free from dust or dust coating
graded as follows:
|
Passing Square
|
Retained Square
|
Percentage by Weight
| |
|---|---|---|---|
|
1-inch
|
5/8-inch
|
0 to 10
| |
|
5/8-inch
|
3/8-inch
|
50 to 70
| |
|
3/8-inch
|
1/4-inch
|
20 to 40
| |
|
1/4-inch
|
0 to 10
|
J.
The stone shall be broomed to fill all surface voids
without forming a distinct layer. While the asphalt is still warm, the surface
shall be rolled with a ten-ton roller. After the first rolling, the surface
shall be broomed and additional filler added where necessary. Rolling and
brooming shall be continued until voids are filled and the foundation is compacted
to true and even surface at the established grade. All loose stone shall be
removed before the next course is placed.
A.
Materials.
(1)
Asphalt cement. The asphalt cement shall meet the following
requirements:
(a)
It shall be homogeneous and free from water.
(b)
The specific gravity at 77° F. shall be between 1.00
and 1.04 for petroleum asphalts.
(c)
The penetration at 77° F., 100 grams, five seconds
shall be not less than 85 nor more than 100.
(d)
The percent penetration at 77° F., 100 grams, five
seconds shall be not less than 30.
(e)
The percent penetration at 39.2° F., 200 grams, one
minute to the penetration at 77° F., 100 grams, five seconds shall be
not less than 30.
(f)
The loss on heating at 325° F. shall be not more
than a percent, and the penetration of the residue shall be not less than
60.
(g)
It shall have a solubility in carbon tetrachloride of
not less than 99.5% for petroleum asphalts.
(h)
It shall not flash below 34.7° F. when tested by
the Cleveland Open Cup Method.
(i)
The ductility at 77° F. shall not be less than 60.
(2)
Asphaltic concrete.
(a)
After the base course has been completed, a one-course
surfacing of one-and-one-half-inch asphaltic concrete shall be placed. The
asphaltic concrete shall consist of a uniform mixture of broken stone, sand,
mineral filler and hot asphalt cement which, when tested by means of laboratory
sieves and screens, shall meet the following weight requirements:
|
Material
|
Sieve Size Square Openings
|
Percent Passing By Weight
| |
|---|---|---|---|
|
Broken stone
|
1/2-inch
|
100
| |
|
Broken stone
|
3/8-inch
|
50 to 100
| |
|
Sand and stone screenings
|
No. 4
|
30 to 70
| |
|
Sand and stone screenings
|
No. 10
|
22 to 45
| |
|
Sand and stone screenings
|
No. 40
|
12 to 45
| |
|
Sand and stone screenings
|
No. 80
|
7 to 20
| |
|
Sand and stone screenings
|
No. 200
|
3 to 6
|
(b)
Normal asphalt content is 5% to seven and one-half percent
(7 1/2%) by weight of total mix. The upper limit may be raised when using
absorptive aggregate.
(c)
The course aggregate shall consist of clean, durable,
broken stone showing a percent of wear, when tested by the Deval method, ASTM
Designation D-2-33, or subsequent revisions, of not more than 3.5. It shall
show not over 10% loss when subjected to five cycles of a sodium or magnesium
sulphate soundness test, ASTM Designation C-88-41T, or subsequent revisions.
Course aggregate shall be considered to be that portion retained on the No.
4 sieve.
(3)
Fine aggregate. Fine aggregate shall consist of clean,
natural-washed sand, rock sand, stone screenings from approved rock or a combination
of any of these materials.
B.
Construction methods.
(1)
Preparation. Prior to the arrival of the mixture on the
job, the foundation course shall be cleaned of all loose and foreign materials
and shall be in satisfactory condition. Contact surfaces of curb and gutters
and other structures shall be painted with a thin, uniform coating of asphalt
material before the course is placed.
(2)
Placement.
(a)
The pavement shall then be deposited on the base course
by a mechanical spreader and rolled to a thickness of one and one-half (1 1/2)
inches after compaction by a ten-ton two-wheel roller. Rolling shall continue
until all irregularities and roller marks disappear and the surface shows
no further compressability. All pavement not accessible to the roller shall
be tamped with heated tampers weighing not less than 25 pounds
each, having a bearing area not exceeding 48 square inches.
(b)
The finished surface shall be smooth and even and shall
not vary more than one-fourth (1/4) inch in 10 feet from the cross section
or more than three-eights (3/8) inch from true elevation.
(c)
Material shall not be placed on wet base or placed while
rain or snow is falling. No material shall be placed when the temperature
is below 32° F.
A.
The subbase area shall be cleared of fences, trees, logs,
stumps, brush, vegetation, rubbish and any other perishable or objectionable
matter. The area shall be stripped of all topsoil, and any other unsuitable
material encountered shall be removed and replaced with material suitable
for fill under pavements.
B.
The subbase shall be properly prepared by bringing to
the designed line and grade the suitable materials available at hand, if any,
or such other suitable materials as loam, course sand, gravel, stone dust
or cinders. These subbase materials shall be mixed, stabilized, compacted
and rolled with a ten-ton roller, in such a manner as to produce a stable
surface upon which three coats of oil will be placed. If materials are sandy
or of such consistency that they will not produce a hard surface, additional
loam of approved quality free from all vegetable or other foreign matter shall
be added. The subbase shall be rolled thoroughly with a roller weighing not
less than 10 tons until the entire surface is firm and will not heave or be
otherwise distorted by the rolling operation. If any soft or other unstable
areas develop within the surface limits of the pavement, the deleterious material
shall be removed and suitable material replaced and rolled so that a proper
subbase true to line and grade is produced. Before commencing to oil, this
subbase must be approved and accepted by the Engineer or Superintendent of
Public Works.
A.
After the subbase has been approved, one-half (1/2) gallon
of MC-2 per square yard shall be applied with a blotter coat of sand sufficient
to absorb any excess oil and rolled with a ten-ton roller.
B.
Within 60 days, but not less than 15 days after applying
the first coat of oil, 1/2 gallon of RC-2 per square yard shall be applied
and covered with 3/8-inch crushed stone at 25 pounds per square yard, broomed,
rolled with a ten-ton roller and all excess stone removed.
C.
Within one year, but not less than 90 days after applying
the second coat of oil, 1/2 gallon of RC-2 per square yard shall be applied
and covered with 3/8-inch crushed stone at 25 pounds per square yard, broomed,
rolled with a ten-ton roller and all excess stone removed.
