Floyd_Little_Moisture_Probing_Report.pdf
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- Solicitation number
- 2025-RFP-189
- Issued by
- New Haven County, Connecticut
About this file
This document is a Relative Humidity (RH) testing report from Materials Testing, Inc. for the Floyd Athletic Center Improvements project, commissioned by the City of New Haven Engineering Department. The report details an ASTM F2170 standard test method for determining relative humidity in concrete floor slabs, conducted on February 7, 2025, with measurements taken on February 10, 2025. Technicians placed 44 RH sleeves in pre-selected areas of the interior concrete slab, drilling to a depth of 4 inches in an approximately 10-inch thick slab.
The test results reveal varying relative humidity levels across the tested locations, ranging from 70% to 98%, with most readings between 78% and 95%. Several test points showed water-filled holes after drilling, and one sensor was noted as damaged. The ambient air temperature during testing was consistently around 70°F, with humidity at 41%. These moisture measurements are likely crucial for determining the suitability of future flooring installations, particularly in the context of the city's planned athletic flooring replacement project, which requires careful assessment of concrete slab conditions before new flooring can be installed.
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Text version
MATERIALS TESTING, INC.
55 LAURA STREET • NEW HAVEN, CONNECTICUT 06512 • (203)468-5216
WWW.MTIES.COM
DATE: 02-10-2025
REPORT NO: S-1000
CLIENT: City of New Haven - Engineering Dept.
200 Orange Street, Room 504
New Haven, CT 06510
Attn: Mr. Zach Shapiro, PE
PROJECT: Floyd Athletic Center Improvements
PO No. 20251613-00
480 Sherman Parkway
New Haven, CT
SUBJECT: ASTM F2170 “STANDARD TEST METHOD FOR DETERMINING RELATIVE HUMIDITY IN
CONCRETE FLOOR SLABS USING IN SITU PROBES”
DATE OF DRILLING: 02-07-25 TIME OF DRILLING: 10:30 AM
DATE OF MEASUREMENT: 02-10-25 TIME OF MEASUREMENT: 11:00 AM
INSTRUMENT: RapidRH Model L6 LAST CALIBRATION: 10-01-2024
SLAB THICKNESS: approx. 10"
DEPTH OF DRILLING: 4"
AMBIENT AIR TEMPERATURE ABOVE THE PROBES: 71 EF
AMBIENT HUMIDITY ABOVE THE PROBES: 41 %
On 02-07-25 RH sleeves were placed in 44 pre-selected areas of the interior concrete slab of the Floyd
Athletic Center. The results were recorded and are listed on the next page.
Note: See attached drawing for location of RH sleeves (* Indicates ground water present)
Temperature Relative Humidity Observations 1 - - Water filled hole after drilling 2 - - Water filled hole after drilling
3 68 EF 71%
4 67 EF 78%
5 68 EF 78%
6 68 EF 79%
7 68 EF 78%
8 - - Water filled hole after drilling
9 68 EF 70%
10 - - Water filled hole after drilling 11 - - Water filled hole after drilling 12 - - Water filled hole after drilling 13 - - Water filled hole after drilling
14 70 EF 93%
15 70 EF 87%
16 69 EF 87%
17 70 EF 91%
18 70 EF 93%
19 71 EF 93%
20 70 EF 94%
21 68 EF 79%
22 68 EF 79%
23 71 EF 88%
24 70 EF 83%
25 70 EF 85%
26 71 EF 88%
27 70 EF 92%
28 71 EF 94%
29 - - Damaged sensor
30 71 EF 98%
31 71 EF 97%
32 71 EF 89%
33 71 EF 97%
34 - - Water filled hole after drilling 35 - - Water filled hole after drilling
36 71 EF 88%
37 70 EF 89%
38 70 EF 88%
39 70 EF 89%
40 71 EF 95%
41 71 EF 94%
42 71 EF 94%
43 71 EF 95%
44 - - Water filled hole after drilling
Test reports may not be reproduced, except in full, without the express permission of Materials Testing, Inc. Results only relate to items tested. When information is provided by others and included in the report, there is potential for affecting the validity of results.
Basketball court
22 21 20 19
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