Preliminary Evaluation and Assessment
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RAS provides a full array of Pre-Construction Services and Testing for existing lower level, underground Garage. After performing an initial preliminary evaluation and assessment of the actual condition of the existing Garage drainage, waterproofing and reinforcing concrete or post-tensioning system, RAS collects all of the data and develops a comprehensive report accompanied with and an estimated budget for restoration.
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Once the report and budget have been approved by an owner the project advances on to the Specifications for Bid. RAS will not only prepare a complete set of “Specifications” and define the “Scope of work” for competitive pricing and permitting but will also assist in the Bid Review Process to assure that the proposals are technically aligned with all the technical specifications. RAS will then prepare a Final Bid Tabulation Report and if requested will provide a contractor pre-qualification assessment of each company. The full set of Construction Documents for selection of Contractor and Permit Application usually consist of Specifications, Signed and Sealed detailed Garage waterproofing and concrete restoration design Drawings, and any test results that may have been required by the Building Official.
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Acting as “Engineer of Record” or “Special Inspector” during this phase RAS oversees the actual restoration and provides Quality Control of the process, being able to make immediate decision on any unforeseen condition. Upon completion of the installation RAS will provide all the necessary Testing Services to insure that the system was installed according to the manufacturer recommendations and satisfies all the design criteria requirements, such as; Basement slab thickness mapping, water and air permeability, echo sound, concrete chloride, concrete alkali silica, Infiltrated ground water chemical testing and infrared thermo graphic scanning of slab on grade. At the completion of the work RAS provides the final inspection letter and inspection log required to close the permit with the Building Department.
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Upon completion of the restoration of the garage RAS will assemble and archive all test data on a Performance Data Base. This information will be available to the Owner for any possible warranty issues, insurance claims, and annual inspections or as required by the Insurer.
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Expansion Joints movement
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Expansion Joint water deluge testing
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Concrete water and air permeability
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Concrete moisture testing
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Concrete impendance moisture testing
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Concrete echo sound testing
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Concrete strength testing
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Chlorides content testing
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Alkali silica reaction in concrete
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Elevator pit and/or Garage protective barrier
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Infiltrated ground water chemical testing
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Mapping leaks through slab on grade
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Steel mapping of slab and walls reinforcing
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Infared thermographic scanning of slab on grade
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Corrosion rate of reinforcing steel
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Reinforcing steel mapping
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Post-tensioning strand mapping
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Fresh concrete temperature testing
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Fresh concrete maturity testing
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Concrete air content testing
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