Special Condition For Bituminous Work With Use of

Continuous Batch Mix Plant And Paver Finisher

1. The Batch/Drum mix plant and accessories to be used for the work
shall be continuity, with the specifications prescribed vide Govt. of
India, Minister of Transport Circular No.RN/RMP/1161384 Dt.
1/1/87. The plant shall be equipped with all units and accessories
as per latest IS 3066/1955 as amended from time to time. The
contractors will have to modify their plants suitably within a period
of six months from the date of issue of latest is specification or
codes :

2. The work laying aggregates mixed bitumen shall start on site of

work only after 8.00 hrs. in the morning and continues up to 17.00
hours in winter season and up to 18.30 hrs. in summer. No work
shall be done except during the period mentioned above and also
on Sunday and national Holiday viz 26th January 15th August and 2nd
October.

3. Quantity of bituminous aggregate mix to be laid shall be restricted

to 250 tonnes per day of 30/40 capacity plant and may be more
less depending up on the rates capacity of the plant. However if the
quantity exceeds 240 M.T. per day minimum 3 Rollers shall be
provided by the contractor.

4. The contractor shall invariable get the job mix formula for the mix
approved by the Engineer in charge before starting the work.

5. Use of vibratory roller to be compulsory

 For the work like earth work, water bound macadam and
bituminous items the compactions shall be done with vibratory
roller only. The vibratory roller shall be of standard make and
suitable to imart desired degree of compaction. The compaction
with the help of static roller shall not be permitted and no claim
what so ever shall be entertained on this account. Wherever use of
the Road Roller is mentioned in specification/clause etc. in this
documents shall be treated as use of vibratory roller.

6. Amount to be withheld till miscellaneous items are completed.

2% of the amount eligible for the payment of bituminous items

shall be with held till the miscellaneous items like earthwork in
embankment/cutting for side shoulders, side gutters.
Kilometer/hectometer stone, sign board etc. are completed in all
respect by the contractor. After completion of all the miscellaneous
items, the above said 2% with held amount shall be released.

Dated Signature Executive Engineer

of the Contractor R&B Division,
Mehsana
 SPECIAL CONDITIONS FOR BITUMINOUS SURFACE WORK
WITH HOT MIX PLANT AND PAVER FINISHER.
ANNEXURE – A
Technical Requirement of Continuous Batch/ Drum Mix Plant
Composition of plant, the continuous Batch/ drum Mix
plant shall confirm generally to IS specification No. IS 3066/1955 as
amended from time and shall be equipped with the following
arrangement.

1. Cold Aggregate Feeder: The cold aggregate feeder shall have

minimum three independent bins or compartment. Each
provided with accurate mechanical pre determined rate to
cold elevator or to some intermediate conveyer or directly into
the dryer, the feeder shall provide for the adjustment of total
and proportional feed and shall be capable of being locked in
any setting.

2. Drying: The dryer shall be capable of continuously agitation

the aggregates while heating to the desired temperature. At
the discharge end of the dryer or any other suitable location
means shall be provided for ascertaining the temperature of
the heated aggregate.

3. Screening unit Gradation control: The dried aggregate shall

be screened in to not less than three sizes. The plant shall
include means for accurately proportioning each bin size of
aggregate either by weight volumetric measurement. When
the gradation control is by Volume the unit shall include a
feeder mounded under the compartment binds. Each bin shall
have an accurately controlled. Individual gate to form and
orifice for proportioning the material drawn from each
respective bin compartment. The orifice shall have positive
mechanical adjustment and provided with a lock. Indicators
shall be provided on each gate to show the opening in
centimeters.
4. Mixer Unit: The plant shall include a mixer of an approved
twin shaft pug mill type capable of producing a uniform mix.
if not enclosed, the mixer box shall be equipped with a dust
hood to prevent loose of fines.

5. Mineral filler supply unit: The re shall be an independent

arrangement to feed mineral filler directly in to the pug mill.
The hopper to bin for mineral filler shall provide for the
adjustment proportion the feed with aggregate and bitumen
feeds and shall be capable for being located in any settings.

6. Bitumen heating: A heating system for bitumen always with

effective and positive control of temperature shall be provided
to maintain proper temperature and for allowing continuous
circulation between storage tank and proportioning units
during the entire operating period. Suitable arrangements
shall be provided for recording the temperature at the tanks
and in the circulating system.

7. Synchronization : For synchronization of aggregate bitumen

and filler feeds satisfactory means shall be provided to afford
positive inter locking control between the flow of aggregate
from the bins of compartment flow bitumen from the tank
and flow of mineral filler.

Dated Signature Executive Engineer

of the Contractor R&B Division,
Mehsana
 SPECIAL CONDITIONS

A) APPLICABLE IN CASE OF BOTH ROAD AND BRIDGE

WORKS:

1) CONSTRUCTION EQUIPMENT:

1.1 The methodology for equipment to be used on the

project shall be furnished by contractor to the
Engineer well in advance of commencement of work
and approval of the Engineer obtained prior to its
adoption and use.

1.2 The contractor shall give a trail run of the equipment

for Establishing its capability to achieve the laid
down specifications and tolerance to the
satisfactions of the Engineer before commencement
of work, if so desired by the Engineer.

1.3 All equipment provided shall be of providing

efficiency shall be operated and maintained at all
times in a manner acceptable to the Engineer.

1.4 No equipment at personal will be removed from site

without permission of the Engineer.

2) Work programme and methodology of construction.

The contractor shall furnish his programme of construction

for execution of the work within the stipulated time
schedule together with methodology of construction of
each type of work and obtain the approval of the Engineer
prior to actual commencement of work.
3) Revised programme of work in case of Slippage.

4) Action in case of disproportionate progress in case of

extremely poor progress of the work or any item at any
stage of work which in the opinion of the Engineer can not
be made good by the Contractor considering his available
resources, the Engineering will get it accelerated to make
up the lost time through any other agency and recover the
additional cost incurred if any in getting the work done
from the contractor after informing him in writing about
the action envisaged against him.

5) SETTING OUT:
Setting out the work as spelt out in Clause-109 of
Ministry’s specification for road and bridge work (4th
Revision) will be carry out by the Contractor.

6) PUBLIC UTILITIES:
Action in respect of Public utilities will be taken by the
contractor as shown in clause 110 of Ministry’s
specification for Road and Bridge work (4th Revision).

7) ARRANGEMENT FOR TRAFFIC DURING

CONSTRUCTION:
Action for arrangement for traffic construction will be
taken by the contractor as shown in the contract
documents and spelt out in clause 112 of Ministry’s
specifications for Road and Bridge works (5th Revision).

8) QUALITY CONTROL:
The norms of achieving quality of work will be on the
contractor who will take actions as stipulated in section-
 900 of Ministry’s specifications for Road and Bridge works
(5th Revision).

9) MINISTERY’S SPECIFICATION FOR THE ROADS AND

BRIDGE WORK (5th REVISION)

The Ministry’s specifications for Road and Bridge work (5th

Revision) shall from a part of the contract documents and
the contractor will be largely bound by the variation
stipulation made there in unless and otherwise specifically
relaxed or waved wholly or partly through a special clause
in the contract documents.

10) DOCUMENTATION:

The contractor will prepare drawing(s) of the work as

constructed and will supply original with three copies to
the Engineer who will verify and certify these drawings final
as constructed drawing(s) shall then be prepared by the
contractor and supplied in triplicate along with a micro
film of the same to the Engineer for the record and
reference purposes.

11) The use of Drum mix plant for mixing asphalt and
aggregate is compulsory for this work only contractor
possessioning facility of drum mix plant shall be eligible to
bid for this work. The tender copies shall be issued to only
those contractor who is possessing drum mix plant

12) The work shall be executed with the equipment as per

most specification (5th revision) 2013 were in details of
the types of equipment are given for various specification.
Only those bidders who supply necessary proof /
documents for possession of the required type of
 equipment in their bids shall be considered as responsive
for future evaluation and award of work.

13) MODE OF EXECUTION:

The strengthening work is to be carried out in 7.0 mt. road

width and in this situation contractor shall carry out the
work in half portion of the carriageway width and keeping
half portion of carriageway open for traffic to avoid
congestion and easy flow of traffic.

Dated Signature Executive Engineer

of the Contractor R&B Division,
Mehsana
 SPECIAL CONDITION FOR ASPHALT TO
BE BROUGHT BY THE CONTRACTOR

COLLECTING CARTING OF BULK ASPHALT FROM REFINERY TO

SITE OF WORK INCLUDING STACKING THE SAME AS & WHERE
DIRECTED.

1.0 Bitumen shall not be issued by the Department. The same

shall be procured from Koyali Refinery at Baroda by
contractor at his own cost. It shall have to be carted by the
contractor to the site of work it his own cost. Any loss or
damage in the quantity of asphalt during transit, stacking
or utilization will be responsibility of contractor.

2.0 Bitumen shall be utilized only after inspection of Executive

Engineer or his authorised Engineer-in-charge.

3.0 The tanker of bulk asphalt should be unloaded in asphalt

taken or drum on site of work as directed. Before
unloading the weight shall be down in presence of
Engineer-in-charge. After unloading the empty shall also
be done in the presence of Engineer-in-charge. The net
weight shall be taken in account.

4.0 The contractor has to give the day-to-day purchase date

and gate pass received from refinery. The Department
shall keep a day to day account of supply and use of
asphalt in separate bond register having numbered pages
and in the Performa prescribed by the department. The
contractor’s responsible representative shall also sign day
to day in the register.
 COST OF ASPHALT IS TO BORNE BY THE CONTRACTOR AS ITEM
INCLUDES COST OF ASPHALT

1. Cost of bitumen (Koyali Refinery) including Excise, Sales Tax

and Octroi.

2. Transporting to site.

3. All the cost of labours and materials for sorting, stacking and
protecting.

4. Keeping records of supply and use.

5. The testing of bitumen shall be carried out by the contractor

as per instruction of Engineer-in-charge in laboratory.

Dated Signature Executive Engineer

of the Contractor R&B Division,
Mehsana
 WATER SUPPLY

For all purpose connected with the work, the contractor

is required to make his own arrangement for sufficient supply of

water such quantity and for such quality and at such places on the

work is may be necessary. The rate quoted in the tender for

completed items of work and shall cover of water as aforesaid if the

water is supplied by the department the charges will be levied at the

rate of 1/2% of the cost of work done.

Dated Signature Executive Engineer

of the Contractor R&B Division,
Mehsana