QA Doc.pdf
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- Attached to
- CONCRETE FOUNDATION
- Solicitation number
- 20150986
About this file
This document is a Questions and Answers (QA) document for a concrete slab project, providing detailed technical specifications and clarifications for a 50' X 70' X 5" concrete foundation. The QA document addresses key technical aspects including subgrade preparation, excavation requirements (12"-18" depth with class II base backfill), slab thickness (5" with 7" thickened edges), vapor barrier placement, water runoff direction (tentatively north), and surrounding base material (class II base). The document confirms no anchoring or welding will be needed and requests that the technical quotation include both product/material details and a comprehensive technical approach to project completion.
The QA document is associated with a Department of Homeland Security Customs and Border Protection solicitation (Number 20150986) for a concrete foundation/groundwork for a shoot house. The solicitation requires two separate quotation documents submitted to christopher.patao@cbp.dhs.gov: 1) Price and delivery, and 2) Technical Quotation including product specifications. Quotations must be submitted by 7-14-2025 at 3 PM CDT, with Microsoft Office or Adobe-compatible files not exceeding 5 megabytes. The government intends to evaluate and award without discussions but reserves the right to conduct them if necessary.
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QA Document
1.) Does the proposed area for your 50’ X 70’ X 5” concrete slab have an existing subgrade for your slab on grade? If not, it is recommended to over excavate at least 12"-18"in depth and backfill with class ll base and compact. 3" of base material would be compacted and lost into the native soils. It would need to excavate the area where the concrete slab is going to sit at least 12” backfill
2.) Can you provide dimensions on thickens edges or is that at the discretion of the contractor? Slab is 5” thickens plus 7” for the edges
3.) For your vapor barrier it is recommended To place over class II subgrade pad and ad 2" of leveling sand such as crusher fines. Yes that will work
4.) The 1% requested; please provide a detail specifying where you need the water to run.
Other things to consider is the direction of all water run-off surrounding the pad. I believe drop will be North, we can decide once project is awarded
5.) Is the 15' wide surrounding slab a sidewalk or will this also be a slab? No Slab, it will be class II base surrounding the slab.
6.) Will you be anchoring or welding anything to the slab? It may be convenient to imbed metal plates, anchor bolts, tethers, etc. No, none of this will be needed.
7.) . Is the technical quotation to only include the product and material that will be used or would you like a technical approach in how the project will be completed, as well? Yes, please include technical approach in how the project will be completed
File details come from the government source that posted it. Updated .