VA69D-18-B-1687-00003004.pdf

13605 1st Avenue N., Suite 100 Plymouth, MN 55441 Tel: 763.412.4000 Fax: 763.412.4090 www.ae-mn.com

A Service-Disabled Veteran-Owned Small Business

Civil Engineering Architecture Land Surveying Environmental Services Landscape Architecture

Anderson Engineering of Minnesota, LLC

Tomah VA Medical Center September 18, 2015 500 E. Veterans Street, B408/Rm 3800 Tomah, WI 54660

Attn: James Plimpton, Project Manager VIA Email: Jim Plimpton

Re: Floor Flatness Test Results Construct Building 405 for 75 MH RRTP Beds, VA Project #676-322 AE Project # 13316

Dear Jim, We have reviewed the Floor Flatness Test Results for the ground level slab as documented in the report prepared by Chosen Valley Testing, Inc. dated August 28, 2015 (attached). Three (3) test sections were done on the main floor area (West Wing, East Wing, and North Wing), with a fourth test area for the tramway link between Building 405 and 404.

A. The project specifications require the following:

1) The minimum acceptable overall values for finished slab flatness (FF) is 36 and the minimum levelness (FL) is 20. Minimum local values are FF-24 and FL-15. Test results at or above these numbers represent acceptable floor flatness and floor levelness of the slab.

2) The specifications also require level tolerance such that 80 percent of all points fall within a 20 mm (3/4 inch) envelope +10 mm, -10 mm (+3/8 inch, -3/8 inch) from the design elevation.

3) If individual slab section measures less than either of specified minimum local FF/FL numbers, that section shall be rejected and remedial measures shall be required. Sectional boundaries may be set at construction and contraction (control) joints, and not smaller than one half bay.

4) If composite value of entire slab installation, combination of all local results, measures less than either of specified overall FF/FL numbers, then whole slab shall be rejected and remedial measures shall be required.

B. The test results indicate the following:

1) The combined FF of the slab on grade for the main building pour areas is 27.11, and the combined FL is 19.75. Both of these are lower than the specified overall values of 36 and 20, respectively, and require remedial measures to bring the slab within specified tolerances.

Remedial measures to correct the slab areas are detailed in the project specifications and include grinding, planing, surface repair with underlayment compound or repair topping, re-topping, or removal and replacement of entire rejected slab areas. We recommend that a corrective plan of action be submitted by SEEDJV for approval by the VA.

2) Test results were also included for the tramway. As a significant area of the tramway is sloped the test results in this area were not incorporated into the combined FF/FL calculations. This area has an overall FF value of 11.64, which does not meet the minimum local FF value of FF-24. A corrective plan for this area should also be submitted. Note: Because of the sloping floor in this area FL requirements are not applicable.

ACCOMPANYING AMENDMENT VA69D-18-B-1687 00003

http://www.ae-mn.com/

Floor Flatness Test Results: Anderson Engineering of MN, LLC Construct Bldg 405 for 75 MH RRTP Beds AE Project #13316:

Date: 9/18/15

3) 80% of all points fall within a ¾’ envelope of the design floor elevation. This meets the specified requirement.

Please contact me if you have any questions about our review of the test results.

Sincerely, Bill Beaupre, RA, LEED AP Senior Project Architect Direct: 763-412-4051 Email: bbeaupre@ae-mn.com mailto:bbeaupre@ae-mn.com

Chosen Valley Testing, Inc.

La Crosse, WI Rochester, MN Mankato, MN St. Cloud, MN

135 Buchner Place, La Crosse, WI 54603 Phone (608) 782-5505 Fax (608) 785-2818

Mr. Tim Bentley August 28, 2015

Master Design Build

4706 N. Ravenswood Avenue

Chicago, IL 60640 tim@masterdesignbuild.com

Re: Floor Flatness Test Results

Tomah VA – Building 405

Tomah, Wisconsin

CVT Project# 6383.14.WIL

Dear Mr. Bentley, As requested, we have been performing floor flatness testing on the ground level slab of the Tomah

VA – Building 405, in Tomah, Wisconsin. The slab was poured on various days in August, 2015.

The specified FF is 36 and the specified FL is 20, with minimum local values of FF 24 and FL 15 for topping slabs which are exposed or receive thin-set tile or resilient flooring. Test results at or above these numbers represent acceptable floor flatness and floor levelness of the slab. In addition to the flatness and levelness numbers, the level tolerance must be such that 80% of all points fall within a

¾” envelope (± ⅜”) from the design elevation. The start point of each of our testing runs was assigned the assumed final floor elevation (100’).

The test was performed in general accordance with ASTM E 1155, Determining FF Floor Flatness and FL Floor Levelness Numbers. A Face Construction Technologies Dipstick 2272 Floor Profiler was used to obtain the test data.

Pour 8/6/15

The data was obtained in 4 runs using a zig-zag layout. The results of each run, as well as the overall results, are tabulated below. The approximate locations are shown on the attached sketch.

Run Number FF FL

1 26.59 19.12

2 25.81 12.59

3 26.71 28.51

4 33.21 22.97

Overall – 8/6/15 27.68 18.08

Specification 36 20

Pour 8/12/15

The data was obtained in 6 runs using a parallel and perpendicular layout. The results of each run, as well as the overall results, are tabulated below. The approximate locations are shown on the attached sketch.

1 28.69 52.15

2 26.16 18.03

3 27.04 33.57

ACCOMPANYING AMENDMENT VA69D-18-B-1687 00003

mailto:tim@masterdesignbuild.com

MDB_LLC

Typewritten Text

- West Wing

MDB_LLC

Typewritten Text

- East Wing

Building 405 – Tomah VA August 28, 2015

Project # 6383.14.WIL Page 2

La Crosse, Wisconsin Chosen Valley Testing Rochester, Minnesota

4 28.79 28.18

5 22.76 14.07

6 20.84 19.07

Overall – 8/12/15 25.16 21.13

Pour 8/26/15

The data was obtained in 6 runs using a parallel and perpendicular layout. The results of each run, as well as the overall results, are tabulated below. The approximate locations are shown on the attached sketch.

1 32.47 14.56

2 38.22 22.28

3 24.09 25.19

4 38.91 24.90

5 30.37 27.68

6 50.13 30.82

Overall – 8/26/15 31.31 21.10

Tramway

The data was obtained in 19 runs using a zig zag layout. The results of each run, as well as the overall results, are tabulated below. The approximate locations are shown on the attached sketch.

1 12.09 10.42

2 17.07 9.90

3 8.83 2.92

4 14.62 2.67

5 14.72 12.15

6 9.7 6.46

7 8.36 2.16

8 19.45 2.35

9 15.40 2.49

10 9.35 2.20

11 13.07 7.99

12 12.31 7.01

13 9.45 2.86

14 11.00 2.88

15 11.62 3.57

16 15.51 4.42

17 11.10 5.12

18 13.39 4.26

19 10.69 2.70

Overall – 8/26/15 11.64 3.38

Specification 36 N/A

Summary

The combined FF of the slab on grade is 27.11, with a combined FL of 19.75. The FF and the FL are lower than the specified overall value, though each pour meets the minimum local value.

The attached graphs show that 80% of all points fall within a ¾” envelope of the design floor

MDB_LLC

Typewritten Text

- North Wing

Building 405 – Tomah VA August 28, 2015

Project # 6383.14.WIL Page 3

La Crosse, Wisconsin Chosen Valley Testing Rochester, Minnesota elevation.

The ground level tramway was also tested. Because of the sloping floor, the test results were not incorporated into the overall results.

Remarks

We appreciate the opportunity to provide our services to you. If you have any questions, or need additional services, please call us at (608) 782-5505.

Sincerely, Kraig McCoy

Laboratory Manager

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