• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
RH Test Hole Callout

#1
I'm following the spec to put a test hole in the slab every 1000 sq ft after putting 3 test holes in the first 1000 sq ft. What is the rational for the 1000 sq ft callout?
Reply

#2
(09-26-2008, 09:40 AM)Ben Wrote:  I'm following the spec to put a test hole in the slab every 1000 sq ft after putting 3 test holes in the first 1000 sq ft. What is the rational for the 1000 sq ft callout?

For the CaCl2 testing it is to establish a base line. I do not know why for the RH probes because they are calbrated and supposed to be maintained that way.
Rayt
Reply

#3
Ben,
I talked with someone that had this explained to him by a member of the ASTM committee in this way… three test holes in the first 1000 sq. ft. to better insure you’re getting a good RH reading in case one probe is on a piece of aggregate and won’t read correctly. A test hole in each additional 1000 sq. ft. is based on the amount a truckload typically carries to pour. This would help identify those mixes that vary with water to cement ratios.
Reply

#4
(09-26-2008, 09:40 AM)Ben Wrote:  I'm following the spec to put a test hole in the slab every 1000 sq ft after putting 3 test holes in the first 1000 sq ft. What is the rational for the 1000 sq ft callout?

Ben,
The rational for testing for every 1,000 s/f is; it represents the amount of concrete per truck load. A truck load of concrete will cover approximately 800 - 1,000 s/f 4-inches thick.
Regards
Rayt
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Test Before You Spec! CCR 6 8,637 05-13-2013, 04:51 PM
Last Post: Ernesto
  Cal Chlor Test CCR 10 15,906 01-18-2013, 04:48 PM
Last Post: eaadams
  Another tester brought in to dispute test results. CC Solutions 4 9,872 08-14-2011, 09:32 PM
Last Post: CC Solutions
  Interesting Test Result eaadams 16 30,568 08-08-2011, 11:41 AM
Last Post: CC Solutions
  How to test RH levels after moisture barrier is used DShenk 3 10,803 08-30-2010, 12:42 PM
Last Post: Ernesto
  Old Slab Test eaadams 5 12,386 07-12-2010, 07:00 PM
Last Post: Ernesto
  pH test eaadams 2 8,014 07-09-2010, 09:45 AM
Last Post: eaadams
  Test time for RH test jigar0896 14 31,950 01-15-2010, 09:36 PM
Last Post: CC Solutions
  When to Test CFI 2 8,787 12-16-2009, 11:45 AM
Last Post: CC Solutions
  creating the hole for the sensor SDJeff 1 7,008 11-09-2009, 04:39 PM
Last Post: Ben

Digg   Delicious   Reddit   Facebook   Twitter   StumbleUpon  


Users browsing this thread:
1 Guest(s)