Questions and Answers- 26R0008- Runway Pavement Investigation.pdf
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- Solicitation number
- FA489726R0008
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This is a Questions and Answers document for federal contract opportunity FA4897R0008, "Runway Pavement Geotechnical Survey," which addresses clarifications on testing requirements and timelines for concrete core analysis.
The document clarifies three key points regarding Phase 1 and Phase 2 laboratory testing requirements. First, the 24 to 48-hour turnaround for laboratory results applies only to ASTM C42/C42M (compressive strength) and ASTM C496/C496M (splitting tensile strength) testing as specified in Section 4.1 of the Statement of Work. Second, regarding ASTM C42/C42M moisture-conditioning requirements that typically extend beyond the 24-48 hour window, the Government authorizes bypassing the standard 5-day bag-conditioning period since the test is directed toward freshly placed concrete; Dr. Wayne Seiler, P.E., the designated "specifier of tests," approves this deviation. Third, ASTM C642 density, absorption, and voids testing is to be completed in Phase 2 rather than Phase 1 to allow adequate time for Phase 1 testing, results analysis, and subsequent evaluation. These clarifications establish the specific testing sequence and approved procedural modifications necessary for contract performance.
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Questions and Answers
FA4897R0008
Runway Pavement Geotechnical Survey
Below are the questions and answers we have received addressing this project.
1. Please confirm that the requirement for Phase 1 laboratory results to be available within 24 to 48 hours of removing the cores applies only to the ASTM C42/C42M and ASTM C496/C496M testing identified in Section 4.1 of the SOW.
Answer: Confirmed, Ph 1 tests are ASTM C42/C42M and ASTM C496/C496M per para. 4.1
2. ASTM C42/C42M includes specimen moisture-conditioning requirements that may extend beyond the 24–48-hour turnaround identified in the SOW. Please advise whether the Government intends to authorize an alternate conditioning procedure to permit ASTM C42/C42M testing within 24–48 hours of core removal and, if so, what procedure should be followed.
Answer: We will bypass the 5-day bag-conditioning period as this test is directed toward freshly placed concrete. Our “specifier of tests” is Dr. Wayne Seiler, P.E. and authorizes and approves this deviation.
3. The RFQ identifies ASTM C642 density, absorption, and voids testing as part of the Base Structural Testing, while Section 4.2 of the SOW identifies ASTM C642 as part of the Advanced Petrographic & Durability Analysis. Please confirm whether ASTM C642 testing is intended to be completed as part of Phase 1 or Phase 2.
Answer: ASTM C642 testing is to be accomplished in Phase 2 to allow time for Phase 1 testing, results, and analysis.
File details come from the government source that posted it. Updated .