Incorrect Testing Practices Mahopac NY

Conducting other tests improperly can also cause rejection of in-spec concrete at the jobsite in Mahopac. Have your drivers learn the correct methods for sampling concrete, measuring slump and air content, and making and curing strength-test specimens in the field. They're your first line of defense against needlessly rejected loads of concrete.

Local Companies

A-Plus Concrete, LLC
203-744-7661
Danbury
Danbury, CT
Pioneer Blacktopping
(123) 456-7890
10 North Street
Wappingers Falls, NY
N E C NORTH EASTERN CONTRACTING
845-298-4400
1127 RT 9
wappinger falls, NY
New York State Construction
(845) 641-3382
7 Skyline Dr
Thiells, NY
Mc Auliffe Construction Co
845-225-1746 or 914-419-7101
Po Box 810 Carmel, NY.
Carmel, NY
NORTH EASTERN CONTRACTING
914-490-4100
1127 rt.9
wappinger falls, NY
Access Nursing Services
(914) 747-9696
411 Manville Road
Pleasanville, NY
Cafarelli Carpentry, Tile and Handyman Contracting
845-453-1690
33 Townview Dr
Wappingers falls, NY
Custom Crushing & Materials, Inc.
914.737.6400
522 N. State Rd.
Briarcliff Manor, NY
hk contracting inc.
914 473 2355
po box 529
scrub oak, NY

Source: THE CONCRETE PRODUCER/CONCRETE JOURNAL MAGAZINE
Publication date: November 1, 1998

By No Author

Abstract:

Erroneous results from improper testing can cause unnecessary rejection of good- quality concrete. Train your drivers to recognize some of the more common testing errors. This article is based on information presented in Down the Chute, the publication of Florida Independent Concrete and Associated Products Inc.The problem isn't confined to strength tests. Conducting other tests improperly can also cause rejection of in-spec concrete at the jobsite. Have your drivers learn the correct methods for sampling concrete, measuring slump and air content, and making and curing strength-test specimens in the field. They're your first line of defense against needlessly rejected loads of concrete.Some improper practices are:

  • Excessive prewetting, leaving surplus water in the container
  • Sampling from the form into which the concrete has been placed
  • Failure to remix the concrete sample in the sample container before starting the tests
  • Failure to use an aggregate correction factor
  • Use of the pressure meter to measure air content
  • Failure to firmly support the base plate
  • Base plate not large enough, allowing high-slump concrete to spill over the edge of the plate
  • Base not level
  • Dampening the slump cone and base leaving a puddle of water on the base
  • Measuring the difference between the top of the cone and the highest or lowest point on the slumped specimen
  • Fai...

Click here to read full article from The Concrete Producer

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