ACI Certification- exam 2024 with 100% correct answers ASTM C1064 Answer - Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete The sensor of the temperature measuring device shall be submerged a minimum of inches into the freshly mixed concrete. Answer - 3"
ACI Certification- exam 2024
with 100% correct answers
ASTM C1064 Answer✔✔ - Standard Test Method for Temperature of Freshly Mixed
Hydraulic-Cement Concrete
The sensor of the temperature measuring device shall be submerged a minimum
of inches
into the freshly mixed concrete. Answer✔✔ - 3"
The temperature measuring device shall have a capacity of measuring temperature
of freshly mixed concrete to ± °F throughout a range of .
Answer✔✔ - 1 degree, 30 degrees to 120 degrees
The temperature measuring device shall be calibrated , or whenever there is a
question of
. Answer✔✔ - Annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or False?
Answer✔✔ - True
The temperature of concrete may be measured in a wall form. True or False?
Answer✔✔ - True
What must be done to the sample container prior to sampling the concrete?
Answer✔✔ - Dampen with water
What must be done to the concrete surrounding the temperature measuring
device after the device is submerged in the fresh concrete? Answer✔✔ - Close off air
voids by gently pressing the concrete around the device
How long must the temperature measuring device remain in the freshly mixed
concrete? Answer✔✔ - minimum of two minutes, maximum of five minutes
,The temperature of the concrete is reported to the nearest °F Answer✔✔ - 1
degree
A maximum temperature of freshly mixed concrete is specified in ASTM C1064.
True or False? Answer✔✔ - False
ASTM C172 Answer✔✔ - Standard Practice for Sampling Freshly Mixed Concrete
Sampling by this method is required when tests are to be made to determine
with
specification requirements. Answer✔✔ - Compliance
This method covers sampling from four types of mixers, which are ,
, , and .
Answer✔✔ - Stationary mixers, paving mixers, revolving drum mixers and open top
mixers
The maximum allowable time between obtaining the first and final portions of a
composite sample is
minutes. Answer✔✔ - 15
Portions of a composite sample shall be thoroughly remixed before beginning tests
on the sample. True or False? Answer✔✔ - True
The maximum elapsed time allowed between obtaining the final portion of the
composite sample and beginning the tests for slump, temperature, and air
content is minutes. Answer✔✔ - 5
The molding of strength test specimens shall begin within minutes after
fabricating the composite sample. Answer✔✔ - 15
The concrete sample must be protected from contamination and . Answer✔✔ -
Rapid evaporation
The minimum size sample for making strength test specimens is . Answer✔✔ - 1
cubic foot
When sampling from a stationary mixer, the batch must be sampled at or
more regularly spaced intervals during discharge of the middle portion of the batch.
, Answer✔✔ - 2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller studyexpertmary. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
