HomeMy WebLinkAboutSNOW RIDGE APARTMENTS - FDP240003 - SUBMITTAL DOCUMENTS - ROUND 1 - Geotechnical (Soils) Report
Soilogic, Inc.
3522 Draft Horse Court • Loveland, CO 80538 • (970) 535-6144
September 19, 2023
MMD Built
1425 Pikes Peak Avenue
Fort Collins, Colorado 80524
Attn: Matt Deault
Re: Water-Soluble Sulfate Testing Report
Proposed Remodel & Additions to Existing Residence
Tract 2 & Part of Tract 3, Maxfield
1509 S. Shields Street
Fort Collins, Colorado
Soilogic Project # 23-1207
Mr. Deault:
Soilogic Inc. (Soilogic) has received results of subcontracted water-soluble sulfate (WSS)
testing completed for the referenced project. Results of the completed laboratory tests and
associated geotechnical engineering recommendations are included with this report.
Water-soluble sulfates (WSS) tests were completed by a subcontracted laboratory on two
(2) representative samples of the subgrade soils/bedrock which will likely be in contact
with structural concrete. The sulfate concentrations measured in the samples varied from
0.0164 to 0.0379 percent by mass in soil. ACI rates the measured concentrations as being
a negligible risk of concrete sulfate attack; therefore, Type I cement should be suitable for
site concrete. As an added precaution, Type I/II Portland cement could be considered for
additional sulfate resistance of concrete in contact with the subgrade soils. Foundation
concrete should be designed in accordance with the provisions of the ACI Design Manual,
Section 318, Chapter 4. The concrete used for on-site pavements should be air entrained
and have a minimum 28-day compressive strength of 4,000 psi.
Water-Soluble Sulfate Testing Report
Proposed Remodel & Additions to Existing Residence
1509 S. Shields Street, Fort Collins, Colorado
Soilogic Project # 23-12072
We appreciate the opportunity to be of service to you on this project. If you have any
questions concerning the enclosed information or if we can be of further assistance to you
in any way, please do not hesitate to contact us.
Very Truly Yours,
Soilogic, Inc. Reviewed by:
Darrel DiCarlo, P.E. Alec Kaljian, P.E.
Senior Project Engineer Project Engineer
09/19/2023
09/19/2023