HomeMy WebLinkAboutSpecs C901EARTHWORK
1. SCOPE OF WORK
A. Extent: The work required under this section
consists of all excavating, filling, rough grading
and related items necessary to complete the woric
indicated on the drawings and descnbed in the
specifications. The Contractor shall notify in writing
the owners and the Engineer of any .changes, errors
or omissions found on the plans or in the field
before
work is started or resumed
1. In general, the items of work to be
performed under this section shall include:
clear'ing and grubbing, removal of trees ond
stumps (where required), protection of trees
to remain, stnpping and storage of topsoil,
fill compaction and rough grading of entire
site.
2. Excavated material that is suitable may be
used for fills. All unsuitable material and
all surplus excavated material not required
shall be removed from the site. The
location of dump and length of haul shall be
the Contractor's responsibility.
3. Provide and place any additional fill
material from off the site as may be
necessary to produce the grades required.
Fill obtained from off site shall be of kind
and quality as specified for fills herein
and the source approved by the Owner.
4. The Contractor shall accept the site as he
finds it and shal) remove all trash, rubbish
and debris from the site prior to starting
excavation.
B. Work not included: lhe following items of
related work are specified and included in other
sections of these specifications:
1. Excavation, grading and backfilling for
utility lines
2. Storm drainage systems
3. Sanitary sewer systems
4. Streets and paving
5. Water supply system
2. BENCH MARKS
Maintain carefully all bench marks, monuments and other
other reference points; if disturbed or destroyed,
Contractor shall �ontact engineer. Replacement shall
be at Contractors expense.
3. REMOVAL OF TREES
A. Remove all trees and stumps from area to be
occupied by road and surfaced areas. Removal of
trees outside these areas shall only be done as
noted on drawings or approved by the Owner.
B. All brush, stumps, wood and other refuse from
the trees shall be removed to
disposal areas off of the site. Disposal by burning
shall not pe permitted unless proper permits are
obtained (where applicable). The location of on-site
bury pits.shall be approved by the owner and the
Engineer if permitted.
4. PROTECTION OF TREES
A. General Protection: The Contractor shall be
responsible for the protection of tops, ,trunks
and roots of existing trees on the pro�ect site
that are to remain. Existing trees subject to
construction damage shall be boxed, fenced or
otherwise protected before any work is started;
do not stockpile within branch spread. Remove
i n t e r f e r i ng b r a n c h e s w i t h o u t i nju ry t o t r u n k s a n d
cover scars with tree paint.
5. HANDLING OF TOPSOIL
A. Remove all organic material from the areas
to be occupied by buildings, roads, walks and
parkinq areas. Pde and store topsoil at a location
where it will not interfere with construction
operations. Topsoil shall be reasonably free from
subsoil, debris, weeds, grass, stones, etc..
B. After completion of site grading and subsurface
utility installation, top soT shalf be replaced in
areas design ted on the erosion control plan for
seedin and%r sod. Any remaining to soil shall
be used for finished grading around structures
and landscaping areas.
6. DISPOSI110N OF UT1LITlES:
A. Rules and regulations governing the, respective
utilities shall be observed in executing all work
under this section.
B. If active utilities are encountered but not shown
shown on the drawings, the.Engineer shall be
advised before work is contmued.
C. Inactive and abandoned utilities encountered in
excavating and rading operations shall be
reported to the �ngineer. They shall be removed,
ptugged or capped as directed by the Utility
Company or the Engineer.
D. It shall be the responsibility of each contractor
to verify all existing utilities and conditions
pertaininq to his pfiase of the work. It shall
also be fhe contractors responsibility to contact
the owners of the various utilities before work
is started.
7
E:�
SITE GRADING:
A. Grades: Contractor shall perform all cutting,
filling, compacting of. fills and rough grading
reqwred to bring entire project area fo grade as
shown on the drawmgs.
B. Rough Grading: the tolerance for paved areas
shalr not exceed 0.10 feet plus or minus above
the established subqrade. All other areos shall
not exceed 0.10 feet plus or minus the
established grade. Alf banks and other breaks in
grade shall 6e rounded at top and bottom.
C. Compaction Requirements:
1. All areas supporting footings and paved areas
shall be compacted to at least 98% standard proctor density.
2. All fill below building slab, adjacent to foundations and over
foundations shall be compacted to 95% standard proctor density.
EARTH WORK BALANCE
A. The Contractor shall confirm all earthwork quantities
prior to start of construction. If an excess or
shortage of earth is encountered, the Contractor
shall confirm with the Owner and Engineer the
requirements for stockpiling, removal or importing
of earth.
B. Minor adjustments to the grades may be required
to earthwork balances when minor excess matenal
or shortages are encountered. It is recognized
by the parties hereto that the calculations of the
the Engmeer in determining earthwork quantities
shall be accomplished in accordance with the
American Society of Civil Engineers Standards for
such calculations. Further, that these calculations
are subject to the interpretations of soil borings
as the physical limits of the various soil types,
the allowable var'iation in finish grade and compaction
permitted the contractor. and that all of these
oarameters ma couse either an excess or shorta e
f actual earthwork materials to complete the pro�ect.
If such an actual minor excess or shorta e of
materials occurs, the contractor shall con�act the
Engineer to determine if ad�'ustment can be made
to correct the imbalance of earth.
9. TESTING
A. Contractor shall hire at Contractors expence an.independent
soil testin service to assure soil com action with sco e
of testing9to be approved by EngineerP Copies of test Pesults
shall be submitted to the Engineer.
SANITARY SEWER SYSTEMS
1. SCOPE OF WORK
A. The work under this section includes all sanitary
sewers, manholes, cleanouts and related items including
excavating and backfilling, necessary to complete the
work shown in the drawings, starting five feet outside
the building walis. The ends of sewers shall be tightly
plugged. or capped at the terminal points adjacenf
to buildings. pending the connecting of a�l such Imes
to the building drain as specified in �the plum�ing and
architectural drowings. One set of approved pfans
shall be on the �ob site at all times.
2. MATERIALS
A. Polyvinyi Chloride Pipe (PVC)
1. 8�-15" PVC pipe shall be SDR 35 and conform to
ASTM D3034, with a minimum cell clas�sification of
12454-B or 12454-C. Greater than 15 PVC
pipe shall, conform to ASTM F679, with a minimum
cell classification of 12454-C.
2. All fittings and joints shall be compression
type ,flexible qasketed�oints, and manufactured
and installed in accordance with the pipe
manufacturer s specifications. No solvent
cement joints shall be allowed. All fittings shall
be heavy walled fittings.
3. Pipes shall have a minimum pipe stiffness
of 46 psi when measured at 5� vertical ring
deflection and tested in accordance with ASTM D
2412 and a minimum tensile strength 34.50 MPa.
B. Ductile Iron Pipe
1. Ductile iron (DI) pipe must meet ASTM A-746 and
ANSI/AWWA A21.51/C151 with exterior bituminous coating er
ANSI�AWWA A21.51 /C151 and ANSI/AWWA A21.10/C110. �e
intenor surfaces of all pipe, fittings, and adapters shall be lined
with factory applied Protecto 401 ceramic epoxy lining, or
approved equal. Pipe must be marked per ASTM A 74&.
2. Mechanical, push on or restrained joints shall be provided
Flanged joints are not allowed for buried a��pplication . Flechanical
�oints and accessories shall conform to AYVWA C111%�ANSI A21.11.
The bolts and nuts shall be corrosion resistant high stren th olloy
steel. Push-on typ e joints shall conform to ANSf A21.11 AWWA
C111. Fittings sha-(I compy with ANISI Specification A21.1 /AWWA
C110. Restrained �ints si�all be manufactured in accordance
with pipe manufacfurers' requirements. Locking rings, tabs
inserfs, or gaskets with inset steel grips may all be used {or
gravity sanitary sewer applications. Fittings shall be
standardized for the type o�f��pipe and joint specified, and shall
comply with ANSI A21.10/AWWA C110.
C. Manholes
1. Precast reinforced concrete manhole sections
and steps and concrete adjusting rings shall
conform to ASTM C-478 latest revision. Exterior
o f m a n h o l e s h a l l b e w a t e rp r o o f e d w i t h B i s m a t i c
material. Manhole sections shall not be installed until
at �east five days after having been cast unless
permitted in writing by the Department.
2. Castings shall be of uniform uality, free
from blow holes, porosity, hard spo�s,
shrinkage distortion or other defects. They
m oth and wetl-cleaned b shot-
shall be s o
blasting or by some other approved method.
They sFiall be coated with asphalt paint
which shall result in a smooth coating,
tough and tenacious when cold, not tacky or
britfle. They shall be.qray iron meeting
ASTM A-48 latest revision. Manhole covers
for sanitary sewer shall be Neenah Type R-1077-A
w/R-1712-B-SP Frame w/Self-Sealing application.
3. Joints - Manhole sections shall be ,'p ined with
a rubber gasket per ASTM C 443, and 1�1" diameter
butyl rubber rope sealant per ASTM C 990.
4. I�anholes shall include steps. Manhole steps shall
conform to the requirements of ASTM C 478 and be
manufactured using steel rods encased in polypropylene
plastic. Steps shall be factory installed when the
manhole is manufactured.
5. Manholes shall be bedded on a granular
foundation. The granular foundation shall be
compacted with vibratory tamps.
6. Manholes adjusting r_ings shall on�ly be concrete.
They shall conform to AS1M C 478. Minimum thickness
of concrete r'ing shall be four (4) inches.
7. Castin s shall be Neenah R-1713-B-SP or East
Jordan 102� 1AGSMD. All castings shall have a machined
bearing surface with T�pe F concealed pickholes. The words
"Sanitary Sewer" and City of Indianapolis" must be cast in
recess letters two inches m heiqht onto solid lid covers.
Castings shall be manufactured in accordance with ASTM A 48 -
Class 356, and have a minimum tensile strength of 35,000 psi.
3. APPLICATION
A. Permits and Codes - The intent of this section of
the specifications is that the contractor's bid on
the work covered herein shall be based upon the
drawings and s ecifications but that the work
shall comply wi�h all applicable codes and
regulations as amended by any waivers. Contractor
shall furnish all bonds necessary to get permits
for cuts and connections to existing sewers.
The Contractor shall be responsible for obtaining
or verifying all . permits for all or portions of
this ro�' ct pnor to starting construction. The
P
Co
ntracfor sf�all notif the focal or count
inspector or utilit superintendent 48 houYs prior
to commencemen� of sanitary construction.
B. Local Standards - The term "local standards" as
used herein means the standards of design and
construction of the respective municipal
department or utility company.
C. Existing Improvements - Maintain in operating
condition all active utilities, sewers and other
drains encountered in the sewer installation.
Repair to the satisfaction of the owner any damage
to existing active improvements.
D. Workmanship - To conform to all local, state and
national codes and to be approved. by all local
and state agencies having �urisdiction.
E. Trenching - Lay all pipe in open trenches, except
when the local authority ives written permission
for tunneling or p' cking o� pipe. Open the trench
su�ciently ahead of piPe-la�ng to reveal any obstructions
The width of the trench shall be the greater of the
outside pipe diameter plus 16 inches or 12 inches plus
1.25 times outside diameter. Sheet and brace the
trench as necessary to protect workmen and
adjacent structures. All trenching to comply with
Occupational Safety and Health Administration
Standards. Ope trenches shall be properly
protected and%r barricaded when feft unattended.
Keep trenches free from water while construction
is in progress. Under no circumstances shall
eipe or appurtenances be laid in standing water.
Conduct the discharge from trench dewatering
to drains or natural drainage channels.
F. S� ecial Supports - Whenever, in the opinion of the
Engineer, the soil at or below the pipe grade
is unsuitable for su port'
in sewer an
p g s. d
appurtenances specified in this section such
special support, in addition to those s�own or
specified, shall be provided, as the Engineer may
direct, and the contract will be adjusfed.
G. Backfilling - No. 8 crushed stone or No. 8 fractured
faced aggregate shall be used. Bedding material shall be
placed and compacted prior to laying tFie pipe. Haunching
mate,�ial sh�l be shovel sliced or otherwise carefully placed
and walked or hand tomped to the springline to ensure
compaction and complete filling of all v,oids. �he initial
backfill shall be added in six inch lifts walked in for compaction.
Material Pipe size (in) Depth Below Depth Above Top
Barrel, (in) of Pipe, (in)
Flexible 6 or less 4 4
Pipe 8 to 15 4 12
18 and larger 8 12
Material Pipe size (in) Depth Below Depth Above Top
Barrel, (in) of Pipe, (in)
Rigid 8 to 16 4 6
Pipe 18 and larger 8 6
Final Backfill - For excavation within the right-of-ways, final backfill
requirements shall be in accordance with the Department of
�letropolitan Dgvelopments "Regulations For Cuts Within The Public
Right-of-Way.
All other backfill requirements are as follows:
wthin 5' of pavement, curbs, gutters, or si�nilar stru�,tures
trenches shall be backfilled witfi Structural B-8orrow for structural
installations per INDOT Standard Specifications - Section 211.
Backfill shall be compacted to achieve not less than 95� Standard
Proctor Dry Density per INDOT Section 203.23.
Backfill shall be added and compacted in 12 in. lifts by mechanical
tampers. Maximum compaction depth shall not exceed 6 ft.
Backfill outside of 5' of edge of pavement, curbss gutter or similar
structures shall be backfilled with clean fill material free of rocks larger
than 6 in. in diameter, frozen lumps of soil, wood, or other extaneous
material.
H. Flow Channels - The flow channels within manholes
shall be an integral part of the precast base.
The channels shall be shaped and formed for a
clean transition with proper hydraulics to allow
the smooth conveyonce of flow through the manhole.
The bench wall shall be formed t� �he crown of the
inlet and outlet pipes to form a U shaped
channel. TY�e bench wall shall slope back from the
crown at 1/2 inch per foot to the manhole wall.
No brick, rock or sand fillers will be allowed.
I. Infiltration - The contractor shall furnish
necessary eq�uipment to test sewers for
infiltration. lnfltration rates shall not exceed
the Local Standards. All sanitary sewer lines
upon completion wilf be required to pass a low
pressure air test, unless otherwise directed by
the City Engineer. Said test shall be
conducfed according to NCPI Standard �lethod,
and shall be witnessed by an inspector authorized
by the City Engineer. Infiltration under
test shall not exceed 100 �allons per inch of
inside diameter of sewer pipe per mile of sewer
in 24 hours and is inclusive of all
appurtenances within the section being tested such
as manholes, house connections, etc.
Any portions .not passing said tests for acceptance
sholl be repaired or repfoced, jncluding re-excavation
and backfill, at the Contractor s expense.
J. Flushing Sewers - Flush oll sanitary sewers except
buildin sewers with wat
g er
to obtain free flow
througFi each line. Remove all silt and trash from
appurtenances just prior to acceptance of work.
K. Plastic Sewer Pipe Installotion - Plastic sewer
pipe shall be installed in accordance with ASTM
D2321 per latest revision, ond no plastic pipe
shall exceed an 11 point mandrel fest deflection
of 5% All sewer mains shall be lamped at the
time the mandrel test is conducted. All mains
shall be true to alignment and grade.
L. Storm Water Connections - No roof drains, footing
droins and/or surface water drains may be
connected to the sanitary sewer systems, including
temporary connections during cons�ruction.
M. Waterline Crossing - Water and sewer line crossings
and separations shall be in accordance with Ten
States Standards and local and state codes.
Waterlines and sanitary sewers shall maintain a
minimum of 10 foot horizontal separation and a
minimum 18 inches of clearance between pipes at
crossings. Otherwise, sanitary sewer within 10
feet of waterlines shall be constructed of water
works grade Ductile Iron Pipe with mechanical
joints and fittings. One length of sewer pipe
should be centered ot the waterline crossing
so that no joint is closer than 10 feet to fhe
wateriine.
N. Utilities - It shall be the responsibility of
each contractor to verify all existing utilities
and conditions pertaining to his phase of the
work. It shall also be fhe contractors
responsibilit y, to contact the owners of the
vanous utdities before work is started. The
contractor shall notify in writing the owners and
the engineer of any chonges, errors or omissions
found on these plans or in the field before work
is started or resumed.
0. Service Laterals - Individual building service lines
shall be 6 inches in diameter and of PVC material.
Material reouirements are in the table below.
OR 12364
PVC ASTM D 2241 SDR32.5 CELL CLASS 12454
PVC ASTM D 24fi6 Schedule 40 CELL CLASS 12454
PVC ASTM D 2467 Schedule 80 CELL CLASS 12454
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Service lines shall be connected to the main
sewer by a wye at locations generally shown
within tFiese plans. Service lines shall be
extended to a distance qf 5 feet beyond the right-
of-way line and within 5-8 of the existing ground
surface. The ends shall be plugged and sealed
with a water tight cap.p Sewer serwce lines shall
be marked with a 2 x4 painted green and extending
from the lateral end to 3' above grade.
New Sanitary Sewer Main Construction Contractor
shall record length and dimensions of each service
line stub from nearest downstream manhole measure
alon the sanitar sewer main. The locatio s
g n of
manfioles and service lines along with any other
construction changes are to be incorporated.o�
the original construction drawings as as-built
locations and submitted to the Engineer .as soon
after completion of construction as possible, not
to exceed 30 days.
Gravity Sanitory Sewer Testing - All sanitary sewers
24 inches and less shall be air tested by means of a low
Pressure air test per Section 602.03 of the City of
ndianapolis' Sanitary Sewer Standards. All sewers larger
than 24 inches shall be joint tested per Section 602.04.
All sewers 24 inches and less shall be tested by means
of a low-pressure air test to detect damaged ppi i�ng and or
improper �Ointing. Testing shall be done per ASTM F 141
flexible and semi-rigid pipe and ASTM C 924 for RCP.
AIl sewers greater than 24 inches shall be joint tested using
air or water under low pressure. All oints shall be tested.
Testing shall be per ASTM C 1103 an� per City of
Indianapolis Sanitary Sewer Standards and Specifications.
Force Main Testing - All force mains for lift stations and
common force mains in low pressure systems shall
be tested for leakage by a Hydrostatic Leak Test
per Section 603.03.
The hydrostatic leak test shall be done in accordance
with �4WWA standards based on force main material, in
accordance with ASTM E 1003 and per Section 603.03.
Manhole Testing - All manholes shall be tested
for infiltration by means of a negative air vacuum)
Pressure test per Section 604.04 of the Ci y of
ndianapolis' Sanitary Specifications.
All manholes shall be tested for infiltration by means of a
Negative Air (Vacuum) Pressure Test. Testing shall
be done per ASTM C 1244.
All internal chimney seals shall be tested using a leakage test.
Testing shall be performed per Section 604.05.
STORM SEWER SYSTEMS
1. SCOPE OF WORK
The work under this section includes all storm sewers,
storm water inlets, and related items including
excavating and backfilling, necessary �o complete the
work shown on the drawings. All, work and materials shall
meet the local governing authorities specifications.
2. MATERIALS
A. Storm Sewers
1. Reinforced concrete sewer pipe.shall conform
to ASTM C-76 latest revision, with �oints
conforming to ASTM C-443 latest revision when
storm pipe is continuously submerged in water.
2. Aluminized type 2 corrugated steel p�ipe shall
�e manufactured ir� acco c�ance with AASHTO M36
t�e I witt� 2 2/3 x 1 f2 corrugation �for
1Z� and 15' djameters; ype IR wit,� 3�4 x
3/4" x 7 1/2 corrugations for 18 diameter
and largera. The pipe shall be formed from
an aluminized steel type 2 coil that conforms
to AASHTO M274. The minimum gage thickness of
the pipe shall be as follows:
Diameter Gaae
42; _ 48; 14
54 84 12
:
C.
3. High density polye thy�ene pipe shall perform
to AASNTO M252 and M2�J4 Type S specifiications,
latest revision, and shall have mater'ial
specifications conforming to ASTM D1248 or
D3350, latest revision.
4. Polyvinyl Chloride (PVC) profile wall gravity flow storm
sewer pipe shall be the integral wall bell and spigot type with
elastomeric seal 'oints and smooth inner walls in n
accorda ce with
AASHTO M304. A�minimum Cell Class of 12454C or 12364C
as set forth by ASTM D 1784 shall be required.
Smoothwall PVC pip shall be in accordance with ASTM F 679
or AASHTO M 278 for the specified sizes, and shall have a
minimum Cell Class of 12364C for pipes meeting_ speci�cation
ASTM F 679 or 12454C for pipes, meeting specification
AASHTO M�78. Cell class properties shalf be set forth by
ASTM D 1784.
Manholes
1. Precast reinforced concrete manhole sections
and steps shall conform to ASTM C-478 latest
revision.
2. Casting shall be of uniform quality, free
from blow holes porosity, hard spots,
shrinkage distor�ion or other defects. They
shall be smooth and well cleaned by shot
-blasting or by some other approved method.
They shall be coated with asphalt paint
which shall result in a smooth coating,
tough and tenacious when cold, not tacky or
britfle. They shall be �ray iron meeting
ASTM A-48 latest revision.
3. Joints Manhole sections shall be jointed
with rubber type askets. The rubber type
gaskets shall mee� ASTM C-443 latest
revision. When manhole and storm pipe are
continuously in water.
SUBDRAINS
1. Perforated plastic�pip e subd a�ns shal� conform
to ASTM F-405, AASHTQ M-252 �4 to 10 pipe).
3. APPLICATION
A. Permits and Codes - The intent of this section of
the specifications is that the contractor's bid on
the work covered herein shall be based upon the
drawings and specifications but that the work
shall comply with all applicable codes and
regulations as amended by any waivers. Contractor
shall furnish all bonds necessary to get permits
for cuts and connections to existing sewers.
Contractor shall notify the County Surveyor s Office
a minimum of 72 hours prior to the commencement
of storm sewer construction.
B. Local Standards - the term "Local Standards'� as
used herein means the standards of design and
construction of the respective municipal
department or utility company.
C. Existing Improvements - Maintain in operating
condition all active utilities, sewers and other
drains encountered in the sewer installation.
Repair to the satisfaction of the owner any damage
to existing active improvements.
D. Workmanship To conform to all local, state and
national codes and to be approved by all local and
state agencies having jurisdiction.
E. Trenching - Lay all pipe in open .trenches, except
when the local authority gives written permission
for tunneling. Open the french sufficient ahead
of pi e lay'�n to reveal an obstructions. The
widthPof the9trench shall be the inside pipe
diameter plus 24 inches for 12 inches above the
pipe. Sheet and brace trench as necessary to
�rotect workmen and adjacent structures. All
renching to comply with Occupational Safety and
Health /�dministration Standards. Keep trenches
free from water while construction is m progress.
Under no circumstances lay pipe or appurtenances
in standing water. Conduct the discharge from
trench dewatering to drains or natural drainage
channels. _
F. S� ecial Supports Whenever in the opinion of the
Engineer the soil at or below the pipe grade is
unsuitable for supporting sewers and appurtenances
specified in this section, such special support,
in addition to those shown or specified, shall be
provided as the Engineer may direct, and the
contract will be adwsted.
G. Backfilling - for a depth of at least 12 inches
above the top of the pipe, backfill with earth or
granular material free from large stones, rock
fragments, roots or sod. Tamp this backfill
thoroughly, taking care not to disturb the pipe.
For the remaining trench depth, backfill with earth
or granular material containing stones or rocks npt
larger than 4 inches. Backfill under and within 5
of paved areas shall be granular material only and
shall conform to local standards -
thoroughly compacted by approved methods.
H. Manhole Inverts - Construct manhole flow channels
of concrete sewer pipe or brick, smoothly finished
and of semicircular section conforming to the
inside diameter of the connecting sewers. Make
changes in size or grade Qraduafly and changes in
direcfion by true curves. Provide such channels
for all connecting sewers at each manhole.
I. Subdrains - All subdrains shall be of the size
shown on the plans and shall be constructed to the
grades shown. All drains constructed off-site as
part of the outlet drain will be located as shown.
J. Utilities - It shall be the responsibility of each
contractor to verify all existing utilities and
conditions pertaining to his phase of the work.
It shall also be the contractors responsibility to
contact the owners of the various utilities before
work is started. The contractor shall notify in
writing the owners or the engineer of any changes,
errors or omissions found on these plans or in the
field before work is started or resumed.
STREETS AND PAVING
1. SCOPE OF WORK
A. The work required under this section includes all
concrete and bituminous paving and related items
necessary.to complete the work indicated on drawings
and descnbed m the specifications, including but nof
limited to:
All streets, parking areas in contract limits
Curbs and gutters.
Sidewalks and concrete slabs, exterior steps.
2. MATERIALS
A. Concrete - Concrete shall be ready-mixed concrete
and shall be a mix of proportioned fine and coarse
agqregates with Portland cement and water.
Minimum cement content shall be 6 bags per cubic
yard of concrete and maximum water content shall
6e 5.5 U.S. gallons per sack of cement, including.
moisture in the aggregate. Slump for normal weight
concrete shall be a maximum of 4 inches and a
minimum of 2 inches. The slump of machine place
concrete shall be no less than 1-1 4 inches nor
more than 3 inches. Standard tes ASTM C-143
shall be used to measure slump. Compressive
strenqth of concrete at 28 days shall be 4000 psi.
All exterior concrete shall have air entrainment of
5� to 8� by volume per ASTM C-260. Retempering
delivered concrete wdl not be allowed. Concrete shall
be composed of:
1. Portland cement - Conforming to ASTM C-150,
Type IA or Type IIIA.
2. Aggregates: Conforming to ASTM C-33
3. Water - Shall be clear and free from
injurious amounts of oils, acids alkalis,
organic materials or other dele�erious
su6stances.
B. Welded Steel wre Fabric - Where required for
concrete reinforcement shall conform to ASTM A185.
C. Premoulded Joint Filler - Shall be of non
-extruding type meeting ASTM D-544 except that
premoulded �oint filler used in concrete walk
construction may be either non-extruding or
resilient.
D. Bituminous Pavement Materials - All materials
proposed for the construction of bituminous
pavements shall comply with the Indiana Department
of Transportation specifications, per latest
revision.
E. Compacted Aggregate Subbase: Shall be crushed
stone or gravel. Crushed gravel shall be a
minimum of 35% crushed material. Chert shall be
limited to a maximum of 8% of the total. Material
shall be free from an excess of flat, elongated,
thinly laminated, soft or disintegrated pieces;
and shall be free from fragments coated with dirt.
Compacted aggregate shall be graded as follows:
SIEVE SIZE % PASSING
1-1/2° 100
1" 80-1 OO
1 /2" 55-80
8 25-50
30 12-30
200 5-10
**COMMERCIAL GRADE #53 AGGREGATE MAY BE USED
IN PARKING GARAGE.
3. APPLICATION
A. Grading - Do any necessary gradinc� in addition to
that performed in accordance with Earthwork
Section, to br'in subgrades after final
compaction, to �he required grades and sections
for site improvement.
B. Preparation of Subgrade - Remove spongy and
otherwise unsuitable material and replace with
stable material. No traffic will be allowed on
re ared sub rade rior to avin .
P P 9 P P 9
C. Compaction of Subgrade - The first 6 inches below
the subgrade shall be compacted to at least 100%
of the maximum dyr densify as determined by the
provisions of AASHTO T-99. Water shall be
prevented from standing on the compacted subgrade.
D. Compacted Aggregate Subbase - the thickness shown
on the drawin s is the minimum thickness of the
fully compacted subbase. Compaction shall be
accomplished by rolling with a smooth wheeled
roller weighing 8 to 10 tons. Compact to 95�
standard proctor density (ASTM D698)
Along curbs, headers and walls and at all placed
not accessible to the roller, the aggregate
material shall be tamped with mecl�anical tampers
or with approved hand-tampers.
E. Bituminous Pavement Hot asphalt concrete
pavement shall be as specified in Section 400-410
of the Indiana Department of Transportation
Specifications latest revisions. Paving wdl not
be permitted during unfavorable weatF�er or when
the temperature is not in compliance with section
401.05 of the INDOT Specifications.
F. Utility Structures - Check for correct elevation
of afl manhole covers, valve boxes and similar
structures located within areas to be paved, and
make, or have made, any necessary adjustments in
such structures.
G. Placing Concrete
1. Subgrade - Place concrete only on a moist,
compacted subgrade or base free from loose
material. Place no concrete on a muddy or
frozen subgrade.
2. Forms - All forms shall be free from warp,
tight enough to prevent leakage and substantial
enough to maintain their shape and ,position without
�ringinq or settling, when concrete is placed.
orms sliall be clean and smooth and coated with
form release before placement of concrete.
3. Placing Concrete Concrete shall be
deposited so as to require as little
rehandling as practicable. When concrete is
to be placed at an atmospheric temperature of
35 degrees F. or less, parayraph 702.10 of
the Indiana Department of Transp ortation
Speciflcations fatest revision shafl be
followed.
H. Concrete Curb
1. Expansion Joints - Shall be 1/2 inch thick
premoulded at ends of all returns and at a
maximum spacing of 100 feet.
2. Contraction Joints - Unless otherwise
provided, contraction joints shall be sawed
�Oints spaced 20 feet on center.
3. Finish - Tamp and screed concrete as soon as
�laced, and fill any honey combed, places.
inish square corners to 1/4 radius and
other corners to radii shown.
I. Concrete Walks and Exterior Steps
1. Slopes Provide 1/4 inch per foot cross
slope. Make adjustments in slopes at walk
i n t e r s e c t i o n s a s n e c e s s a ry t o p r o v i d e p r op e r
drainage.
2. Dimensions - Walks and steps shall be one
course construction and of widths and details
shown on the drawings.
3. Finish - Screed concrete and trowel with a
steel trowel to a hard dense surface after
surface water has disappeared. Apply medium
broom finish and scribe o,�trol joints at.5
foot spacing. Provide 1%�2 expansion jomts
where sidewalks intersect, and at a maximum
spacing of 48 feet between expansion joints.
J. Curing Concrete - Except as otherwise specified,
cure all concrete by one of .the methods described
in Section 501.17 of the Indiana Department of
Transportation Specifications, latest revision.
UTIUTIES
1. WATER
A. All water mains shall be installed and tested in accordance
with local standards and requirements.
2. GAS
Gas mains shown in the plans are for information onl . The local gas
utility is responsible for fnal design and installation o� new gas mams.
3. OTHER U1ILITIES
Electric, Telephone, and CATV lines shown in the plans are for information
only. The local utility companies are responsible for final design and installation
of their respective utility lines.
NOTE:
MINIMUM COVER OVER TOP OF ALL
WATERMAINS TO BE 54" FROM FINISH GRADE.
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_ ;' No. _
- PE19800489 ; -
_ ��\
�-o= STATE OF ; �
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�'��•�` -!HDIANP,�����.`
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BY:
DATE: 10/ 1 1/ 12
SHEET
901
OF
7
JOB#: TW1.003