RFI_Responses_12_14_18_(2).docx

70Z08319BPAT00100 Airfield Pavement Maintenance, U.S. Coast Guard Aviation Training Center, Mobile, Alabama.

Request For Information Responses dated 12/14/18

Question: Sheet C102 Joint repair Keynote 1 designates areas to have joint sealant replaced by multiple arrows pointing to various slabs encompassing a section. Will the government confirm that the extent of the joint sealant shall only go to the widest slab identified and areas outside of these arrows do not need Joint Sealant Replacement?

Answer: Yes, bid the documents

Question: Sheet C103 Keynote the #6 requires the contractor to perform full depth repair under 60 square feet in size. The trench repair shown for the fuel truck apron accessm and utility trench repair measure to be larger than 60 square feet. Will the government confirm that the contractor is to repair a maximum of 60 square feet of concrete in these locations? Or will the government confirm that the contrtactor is to replace to the limits shown on the drawings?

Answer: To repair 60 SF (3 by 20 feet) or 75 SF (3 by 25 feet) IS NOT insignificant in labor and material cost. Labor will take 8 hours to do either and matierial cost is the difference of 1 yard of concrete. The concrete used will be less than the minimum charge of delivery. Hence the total number of concrete delivery will essentially be the same.

Question: Specification section 32 01 19 paragraph 3.3.3 Contract documents state that during joint installation that the joints shall be sandblasted. Per manufacturers recommendations the joints should be water blasted. Will the government confirm that the manufacturer’s recommendations should be followed and sand blasting will not be required?

Answer: No follow the more stringent of the 2. Specification did not give an option for waterblasting. Note 2 works in conjunction with note 5 sheet C102

Question: In the IFB_18PAT001 PART 1 Section I-2 3052.223-70 it requests certification that contractor is license to perform hazardous substance(s) removal or disposal. We typically subcontract HAZMAT removal/disposal to fully licensed contractors. In addition the drawings and specs do not appear to indicate the removal and disposal of hazardous substances. In the event that HAZMAT licensed is required should it be assumed that licensing can be provided by a qualified subcontractor?

Answer: HazMAT is not noted as being a part of this project. But to answer the question, Yes

Question: Is the epoxy mortar intended to be used for all partial depth spall repairs. If not what material is approved?

Answer: Yes see section 03 01 30.71 Part 3 Execution - page 38

Question: What is the approved joint sealant material?

Answer: reference spec's section 32 01 19 page 41

Question: How much area will we have to work on at one time?

Answer: To be coordinated with COR - Note 1 sheet C102.

Question: What type of barricades or marking will be required to separate the work area from traffic.

Answer: Non specified, none needed.

Question: Will we be allowed to work 4 or 5 ten hour days per week without any charges for inspection or supervision overtime?

Answer: Dependant on COR

Question: Sheet C103 Detail A1 Fuel Farm Truck Parking shoes areas for Keynote 1 " Replace Joint Material" . The markers for keynote 1 are not all shown on exact joints. Is it the government's intent to replace only eight joints of selant for this area?

Answer: The markers shows the limits of the four corners, of the concrete pavement that require joint replacement.

Question: C401 note 4 states to install #3 rebar at 18" on center, but the detail on Sheet C501 does not detail installing rebar but only WWM and dowels at thickened edges. Will the government clarify if the contractor is to install #3 rebar at 18" O.C. within the new concrete? Or is the contractor to install WWM?

Answer: Change note 4 from: Place 7” concrete with a broom finish. Reinforce adjacent concrete with #3 rebar at 18” on center with dowels placed into adjacent concrete on 18” intervals

TO: Place 7” concrete with a broom finish. Tie existing adjacent concrete with #3 rebar at 18” on center with dowels placed into adjacent concrete on 18” intervals

Question: Sheet C403 note 4 states to install 7" concrete. Sheet Keynote 6 states to follow typical vehicle concrete detail D5 sheet C501. Sheet 501 Detail C501 states to place 6" concrete pavement. Will the government confirm which thickness is to be installed?

Answer: Sheet keynotes reference to detail D3/C501 and D5/C501 is correct. Transition the thickened edge slab from 12" to 7" and the next slab section would be typical 6".

Question: Sheet C501 Detail E3 shows to install a #3 dowel. The contractor has contacted several vendors and the smallest size dowel they were able to find was a #4. Will the government confirm if a #4 dowel will be allowed to be installed?

Answer: YES

Question: Sheet C103 Detail A1 shows a total of 5 keynote #7 slabs to be replaced. While onsite the contractor noted 6 slabs that were in need of replacement. Is the government wanting to replace 5 or 6 slabs in this area?

Answer: Sheet C103 Detail A1 shows 5 rectangular slab section with keynote #7 reference and 1 triangular slab with keynote #7 reference. A total of 6 slab section to be replaced.

Question: Sheet C103 has replacing a triangle shaped slab. One side of the slab is in contact with asphalt pavement. From observations onsite, without altering the asphalt the top of existing asphalt will be below the top of the proposed concrete edge and will result in ponding water. Will the government confirm the intent to leave the asphalt as it is?

Answer: The triangle slab to be replaced is not part of the spill retention system. When replacing concrete to an existing adjacent asphalt drive, the two section are to be leveled in accordance with the smoothness test of the specifications and smoothness test.

Question: During site visits government personnel stated the Gulf Strike Team Area possibly being included in this contract. The is no mention of this area in drawings or specifications. Will the government confirm that any work associated with the Gulf Strike Team Area is not included as part of this contract?

Answer: Detail A5/C103 work is within the Gulf Strike Team area.

Question: Governemnt provided drawings require the removal and installation of joint material to be performed in phases, but does not state how many. Will the government provide a number of phases that the contractor is to expect during construction?

Answer: For the main aircraft apron the number of phases will be determined by the COR, contractor and ATCMobile operational requirements during that time. The contractor can expect no more than 12 phases and no less than 4. But again it is dependent upon the contractors capabilites.

For the access ramps to Hangar 2 at least one phase for each hangar bay dependant on contractors capabilities.

For access ramp to Hangar 1 at least 2 phases for each hangar door dependent on contractors capabilities

Question: Government provided drawings and/or specifications do not mention reference to any type of "FOD Fence" to be installed to contain FOD within the area. Will the government confirm that no type of FOD fence will need to be installed around the site to limit FOD from leaving the site?

Answer: If FOD fence is NOT mentioned then none is requested.

Question: Governemnt provided drawings require the removal and installation of joint material to be performed in phases. Is the government going to require a downtime between each phase? If so, for how long?

Answer: The government will not require anything other than what is stated in the contract documents. For example if manufacturers recommendation is to wait 24 hours prior to resuming normal operations then 24 hour down time.

Question: Will an FAA permit be required for performing this work since machinery should not be taller than adjacent buildings?

Answer: Possible crane operation for the ditch should be well away from the aircraft ramp and below Hangar 1 height. Apron work should not require such equipment, highest boom would be from a concrete pumper.

Question: If an FAA permit is required, is the government going to file for the permit? Or will the contractor be required to file?

Answer: No FAA permit will be required

Question: Will there be active aircraft within two hundred feet (200')? If so, will the government be providing the contractor with a waiver for working within two hundred feet of active aircraft?

Answer: No, phase the project and take the necessary steps such that this isn't an issue.

Question: The drawing and specs do not seem to indicate any removal or disposal of Hazardous Material. Does the government anticapate any abatement, removal, or disposal of Hazardous Material such has contaminated soils or any other HAZMAT that may be assoicated with this work?

Answer: No, other than standards for asphalt and concrete demolition. Contaminated soil is not expected.

Question: Drawig Sheet C401 Detail C3 note 1 states to saw cut define limits of repair area. Will the government confirm that the limits of the repair area stop at the joint closest the building.

Answer: Yes

Question: Specification Section 32 13 14.13 paragraph 1.3.1 states that all CQC personnel assigned to concrete construction are required to be ACI Certified in various grades. Will the government inform if these certifications are applicable to this project.

Answer: Yes, certification can be submitted as part of the Quality Control Plan or a separate submittal as noted in spec section.

If the specifications are for this project than everything in the specifications apply to this project

Question: Specification Section 32 13 14.13 paragraph 1.3.2 States to submit accreditation of commercial laboratory by and independent evaluation authority. Will the government inform if this specification is applicable to this project?

Answer: Yes, mix plant should provide certification.

If the specifications are for this project than everything in the specifications apply to this project.