• 1 Vote(s) - 5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Preferred Method for Testing RH?

#16
Quote:The textbooks don't show this to be true. I don't know how to post pictures here yet, but if you Google 'Psychrometric Chart' you will see the correlation between moisture and relative humidity. It is not linear as you suggest. And luckily indoor concrete slabs are relatively stable in temperature, and we are to test at service temperature.

But people do go away from home and sections of commercial buildings HVAC get shut down, even overnight when these buildings are inhabited. So tetsting at service temp is simply a snapshot in time and does not mean that will be the same forever.

I have to say if I am going to test ASTM-2170 method I believe the RapidRh is the best because your testing only down at the bottom of the hole as instructed,. The other probes that hang in the holes even though the air pocket is equilibriated must have a diffency factor because the top part of the concrete is dryer so not a true reading at 40%. Yes, I have watched the infomercial. Big Grin
Reply


Messages In This Thread
Preferred Method for Testing RH? - george - 08-12-2009, 09:24 AM
RE: Preferred Method for Testing RH? - jf222 - 08-13-2009, 11:30 AM
RE: Preferred Method for Testing RH? - jf222 - 08-13-2009, 03:15 PM
RE: Preferred Method for Testing RH? - Ernesto - 01-12-2010, 10:56 AM

Possibly Related Threads...
Thread Author Replies Views Last Post
  ICRI pH testing Concrete Repair Bulletin eaadams 4 2,393 05-20-2014, 12:00 PM
Last Post: Ashok Kakade
  Concrete Hood Method Blake McFee 9 27,242 11-08-2013, 01:41 PM
Last Post: eaadams
  Tandus removes moisture testing requirement eaadams 2 4,071 09-27-2013, 10:26 AM
Last Post: eaadams
  RH Testing Thick Slabs CCR 33 47,844 11-21-2012, 10:19 AM
Last Post: eaadams
  Calcium Carbide testing and Silicates Lepito 51 82,942 11-19-2012, 11:59 AM
Last Post: ILLENTINC
  Carbide moisture testing CC Solutions 4 8,642 09-18-2012, 06:11 PM
Last Post: CC Solutions
  Testing Cost eaadams 22 33,385 07-30-2012, 07:01 PM
Last Post: Ernesto
  Mositure Testing Over Concrete Discussion Ernesto 36 67,661 04-19-2011, 04:59 PM
Last Post: CC Solutions
  I offered free RH testing CC Solutions 9 20,413 04-05-2011, 05:33 AM
Last Post: CC Solutions
  RH testing bob huesgen 2 8,525 09-30-2010, 08:27 AM
Last Post: eaadams

Digg   Delicious   Reddit   Facebook   Twitter   StumbleUpon  


Users browsing this thread:
1 Guest(s)