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Your Guide to Road PresentationTRANSCRIPT
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Surface Treatment Solutions of Bohols Provincial Gravel Roads
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485.459, 58%
255.999, 31%
91.085, 11%
Road Condition
Good
Fair
Poor
Most Provincial Roads are in good/fair condition ripe for sealing.
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Provincial Road Profile
832.544 kms of Provincial Road
170.328 kms (20%) are PCCP Road 29.638 kms (4%) are ACP Road 632.577 kms (76%) are Gravel/Earth Roads
The Goal is.
Upgrade at least 100kms of provincial gravel roads in
1 year instead of 5kms per year
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This is how we are going to do it..
Source: Shell
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Area High Medium Low
PMD 1 191-3,665 250-660 28-474
PMD 2 479-1,598 231-902 96-495
PMD 3 1,198-3,944 170-865 60-473
Most Provincial Roads have low traffic volume..
80-90% of the traffic is motorcycle
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Gravel PCCP SBST DBST Slurry
Seal
(6mm)
Slurry
Seal
(12mm)
Sub-base 748,000 671,000
Modified
Base
1,925,000 1,925,000
Wearing
Course
804,375 7,232,500 1,100,000 2,000,000 1,650,000 3,300,000
Total 1,552,375 7,903,500 3,025,000 3,925,000 1,650,000 3,300,000
Cost Comparison
Our solution is cost-effective for our Gravel Roads
Assumptions:
Length 1 km Width 5.5 m Direct Cost only
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Cape Seal Modified Base
+ Slurry Seal
DBST +
Slurry Seal
Sub-base
Modified Base 1,925,000 1,925,000 1,925,000
Wearing
Course 2,750,000 3,300,000 4,950,000
Total 4,675,000 5,225,000 6,375,000
Cost Comparison
Our solution is cost-effective for our Gravel Roads
Assumptions:
Length 1 km Width 5.5 m Direct Cost only
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Life Cycle Cost Analysis 10-km Provincial Gravel Road
Length - 5 kms
Vehicles/day - 100
A B C
Length - 5 kms
Vehicles/day - 50
Cheaper than any pavement for 15 years
Low-Cost
Sealing
PCCP Gravelling
Initial
Investment
35, 750,000 79,035,000 15,523,750
Life-cycle
Cost
89,765,015 107,584,457 84,884,176
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Cost to Upgrade PRMF-assisted Provincial Gravel Road
Road Section Length
(in kms)
Cost
(in Php
million)
Danao-Mahayag Road 15 103
San Isidro-Catigbian via
Caimbang Road
6 41
Tinago-Biking, Tinago-
Bingag Road
4.4 30
Total 174
VS PCCP of Php 244 million
the cost to seal your PRMF road is
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PRNDP 2014-2018 Investments: Php1 billion
Translates to 100kms of sealed road
Remaining 400 kms of Provincial unsealed roads
Additional investments of Php2 billion (2018-2028)
Your goal can become a reality.
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Bohol IRA Fund
Php1.14 billion
Bohol 20% Development Fund
Php247 million
Bohol Road Expenditure Envelope
Php140 million
Bohol Road Maintenance Expenditure Envelope
Php18.4 million
There is sufficient budget.
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Sealing low volume road is supported by
Asian Development Bank SEACAP Programme in SE Asia Australian Road Research Board AFCAP programme in Africa
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Improved sections of Provincial Road caused
88% increase in household incomes from on-farm activities
50% increase from business and trading activities 45% increase from non-farm activities 5% increase from off-farm activities. 34% increase of the incomes of households in treatment
area between the years 2009 and 2011. Increase in habal-habal transportation services thus
multiplying the number of habal-habal drivers in the locality. Competition was beneficial for the riding public because it forces the transportation fares to stay at lower levels.
1 Impact of PRMF gravel roads based on the CIME for Bohol financed by PRMF
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Implementation Approach
Build-Lease-Transfer or Design-
Build-Operate and Maintain
Arrangement under Public-Private
Partnership
In terms of implementation, it is similar to DPWHs Long-Term Performance Based Maintenance Contract
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Role of the Private Sector
Upfront Financing Feasibility Study Detailed Engineering Design Construction of the Project Routine and Preventive Maintenance
for 15 years
Transfer of Operation and Maintenance to the Provincial
Government after the Lease Period
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Role of the Bohol PLGU
Review and approval of the unsolicited proposal under the BOT Law
Review and approval of the Detailed Engineering Design
Issuance of Certificate of Completion for the Improvement component
Monitor Maintenance Performance Standard
Lease Payment over the Lease Period Use and operation of the completed
Project assets after the Lease Period
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Expected Benefits
Leapfrogs local economy with initial EIRR of more than 30% (net development,
maintenance, travel time and vehicle operating
cost). More than NEDAs threshold of 15% Increases local pavement ratio Generates operational savings (maintenance
crew, heavy equipment, fuel and lubricants)
Raises ranking of the Philippines on infrastructure competitiveness
Enhances political mileage to the constituents for better road service delivery
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Action Steps
Submits Letter of Intent Enters Memorandum of Understanding Prepares Feasibility Study Submits unsolicited proposal Undergoes approval process under BOT Law Contract signing Prepares Detailed Engineering Design Construction stage Maintenance stage
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For inquiries:
Contact Engr. Jam Jamonir
Email Address: [email protected]
Mobile no: +63-9189366112
Maraming Salamat
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CONSTRUCTION OF NEW ROAD
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Construction Activities Pay Item Number
Clearing and Grubbing Item 100
Sud-grade Preparation Item 105
Portland Cement Stabilized
Road Mix Base Course
Item 204
Bituminous Surface Treatment Item 304
Slurry System for Road
Surface Treatment
Item 304-A
Construction Work Items
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CLEARING AND GRUBBING (ITEM 100)
All trees, stumps, roots and other objects not designated to remain shall be cleared and
grubbed. If the area is not to be benched, the removal of undisturbed stumps and rootsand
nonperishable solid objects that will be a minimum of four feet below the embankment
surface and that do not extend more than six inches above the original ground line, will not
be required.
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LEVELING AND GRADING OF SUB BASE
The entire roadbed was shaped and compacted to the requirements of elevation and compaction. Scarifying, and rolling, was performed to provide a thoroughly compacted roadbed. Using a ten (10) tonner vibratory plate compactor, a three (3) pass compaction or until full compaction was achieved was implemented on the roadway. Watering the sub grade was done before compaction.
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CRUSHING
Crushing the base coarse to a depth of 0.20 m using a crusher. All organic material and large stones were removed.
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SPREADING OF PORTLAND CEMENT
Spreading of Portland cement then followed. A four percent (4%) Portland cement was spread to a total width of 9.7m or twelve kilos of Portland cement per square meter (12 Kg. / Sq.m.) was laid on the roadway.
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DRY MIXING OF PORTLAND CEMENT
OVER THE CRUSHED BASE
Dry mixing using a crusher then proceed to mix the cement with the crushed base coarse.
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WATERING
Watering the mixed cement and base coarse then followed to bind
them.
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WET MIXING
Wet mixing followed using a crusher to achieve the right consistence of the Stabilized Soil.
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GRADING
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COMPACTION
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FINISHED STABILIZED ROADWAY
Grading the stabilized soil proceeded to achieve the right elevation and crowning. Compaction then proceed to compact the stabilized base coarse. Duration of six (6) hours to four (4) days curing time and constant watering was observed in the stabilized soil.
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Chip sealing/DOUBLE BITUMINOUS
SURFACE TREATMENT
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PRIME COAT
Pavement Surface Treatment Thru Chip Sealing Using Single Bituminous Surface Treatment was applied of roadway for a width of 9.7m. Surface preparation was then conducted by removing the loose materials but it was made sure that the top layer was not removed. Watering the surface was done to make sure that the surface was still damp for priming. Priming the base with a heated CRS 2 mixed with water at one: one ratio (1:1) was applied. The primer was heated to a temperature of seventy (70) to ninety (90) degree Celsius. The newly stabilized base was allowed to cure.
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TACK COAT
Tack coat. After curing, CRS 2 was sprayed. CRS 2 was heated to a temperature of seventy (70) to ninety (90) degree Celsius.
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SPREADING OF AGGREGATES ( TO )
Immediately following the application of tack coat, spreading of to crushed aggregates was applied. Rolling then proceed with pneumatic tires was done. Fog seal of CSB3 diluted with water at 1:1 ratio was applied after curing.
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COMPACTION
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FINISHED CHIP COARSE
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WEARING COARSE
APPLICATION OF SLURRY
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APPLICATION OF FIRST LAYER
Slurry seal. Before placing the slurry course, the pavement was cleaned by sweeping to remove all loose particles of paving; all dirt loose chips and all other extraneous material are also removed. Using a Micro paver, a first layer slurry seal was applied with a total width of 6.7 meters to seal the voids between the crushed aggregates of the chip seal. After curing the surface was then rolled by a pneumatic roller. Second layers then proceed and rolling then followed after curing.
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CURING AND ROLLING
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APPLICATION OF SECOND LAYER
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CURING AND ROLLING
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FINISHED ROADWAY
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FINISHED ROADWAY