Questions from RFP.docx

Questions FA8501-11-R-0040 – Runway Repair

1. If water or pour soil conditions are encountered after concrete removal is complete - how will this be handled if extra time is required for undercutting or drying of soils is needed?

Answer: If the soil condition is not a result of the contractor's actions, then the issue would be considered as an unforeseen condition.

2. Is the sealing in the joints that the contractor will be replacing only in the areas of the 2 work areas A & B?

Answer: The joints affected by the concrete replacement will require sealing.

3. Are the runway markings only the markings in the work areas A & B?

Answer: Specification section 01042 references ETL 94-01. The ETL should be ETL 04-2. This ETL indicates all marking information. Closed pavement markings are required.

4. Is all testing part of the contractor's scope of work?

Answer: The contractor must provide documentation that the materials meet the specifications. The Government will not provide testing services.

5. Will there be any runway closures needed for this work?

Answer: The runway will be closed 14 days to accomplish this construction.

6. Is there a drawing showing the runway traffic control needed for this work? If not can one be provided?

Answer: See specification section 01042 and ETL 04-2. No drawing will be provided.

7. Will the concrete that is removed be placed on an approved site on the base or will it need to be removed from site?

Answer: The concrete shall be removed from Robins AFB. See specification section 01560, paragraph 3.01.

8. Are there any pictures available of site and existing runway?

Answer: No photographs are available.

9. Is the existing concrete to be removed made with Granite/Limestone?

Answer: The existing concrete aggregate is not available.

10. Is there a specific route coming on and off the runway with equipment and construction traffic?

Answer: The haul route is indicated on drawing Plate G-1.

11. Is there a specific gate to be used? If so is this route close to the work areas?

Answer: See specification section 01040. Gate 4 is used for all deliveries. See drawing plate G-1 for the gate location and work location.

12. Can you provide as builts of the existing runway showing thickness of concrete, reinforcement, sub-base ect.,.,.?

Answer: Specification section 01005 indicates the thickness of the pavement. There should not be any reinforcement in the pavement. The base course is approximately 30 inches thick. No as built drawings are available.

13. Will the contractor be able to perform work during 24 hours a day?

Answer: The contractor should request alternate work hours. See specification section 01005.

14. Will the contractor need to have flashing lights and or flags on vehicles or heavy equipment?

Answer: Yes, see specification section 01 35 13.

15. Will both areas A&B be open to the contractor to begin work?

Answer: Yes.

16. Will poor weather conditions be counted towards the 14 day time frame?

Answer: The contracting officer will determine if weather has impacted the 14 days.

17. What are the dimensions for the graded granite aggregate shown on drawing two?

Answer: The base course is sand. The thickness is answered in 12.

18. In the Specifications book there is a large section on removal of a diesel fuel tank starting on page 02050- 2.

Answer: There is no tank removal in this contract.

16. It isn't mention anywhere else in the drawings, solicitation, or statement of work. Is there going to be a diesel tank removal on this job if so where is the tank located, what depth and what size is the tank?

Answer: There is no tank removal in this contract.

19. This is a three part question

Specifications and plans state 4,500 psi 28 days break test.

2.03 MIXES The design of the concrete mixes using the materials specified shall be the responsibility of the contractor as set forth under Alternative No. 3 of ASTM C94. The concrete shall be Type D and have the following characteristics:

1. Compressive strength at 28 days shall be not less than 4,500 psi. 700 psi flexural strength. At the Site visit it was stated that all work had to be completed in the 14 day period, this would include the curing and test breaking of the placed concrete.

Answer: The concrete flexural strength should be at least 700 psi when the Government takes beneficial occupancy of the project.

19A. SOCat GS LLC, requests that the government furnish the design mix so that all contractors are using the same design mix and all contractors are all bidding apples to apples.

Answer: The concrete design mix shall meet all requirements in specification section 03301. The Government will not provide a concrete mix design to meet the requirements.

19B. Will the contractor be able to work around the clock each day on both sites simultaneously?

Answer: The contractor will be given access to both areas at the same time. See answer 13. for work hours.

19C. Will contractor be required to double cut all edges, to minimize spalls?

Answer: The contractor shall remove the existing concrete and not damage the existing concrete. The contractor is responsible for damage to the existing concrete.

20. Reference section 01005 - Statement of Work - Item 1.03 Work Hours: Please confirm alternate work hours of 24 hrs per day for the full 14 calendar day duration will be approved

Answer: See answer 13. Above.

21. Reference section 0205.3.8.3 - Demolition & Removal of Paving and Slabs & section 2110 - Removal & Replacement of Pavements: Since the flightline will be closed during the 14 calendar day construction period, is it acceptable to demolish the existing concrete in place into small pieces for removal and disposal off site? If this is not acceptable and concrete needs to be sawcut into squares and lifted out of place, will a designated spot on base be available for this concrete to be further demolished into small pieces for haul-off and disposal off site?

Answer: Remove debris daily, see specification section 02050.

22. Reference section 03301 - Cast-in-Place Concrete: Specs do not indicate type of finishing equipment required to place the replacement slabs. Please advise if paver-finishing machines (ie. Slip-form pavers) will be required, or if other screed types will be acceptable.

Answer: The equipment and installation method is the responsibility of the contractor.

23. What is de required strength for the concrete at the end of the 14 days (3000 psi or 700 psi flexural strength)?

Answer: See answer to 19.