Exam (elaborations)
ACI Test C172 Exam/13 Questions and Answers/100% Accurate
ACI Test C172 Exam/13 Questions and Answers/100% Accurate
[Show more]
Content preview
ACI Test C172 Exam/13 Questionsand Answers/100% Accurate
Sampling by this practice covers procedures for obtaining representative
samples, on which tests are to be performed to determine ___ with quality
requirements of the specifications under which the concrete is furnished. - -
conformance
-This practice covers sampling from four types of mixers, which are
___________, ___________, __________, and __________. - -Stationary, Paving,
Revolving drum truck, and Continuous
-Concrete samples from a truck mixer must be obtained before any water or
admixtures are added to the mixer at the job site. (T/F) - -F
-Portions of a composite sample shall be thoroughly remixed before
beginning tests on the sample. (T/F) - -T
-The elapsed time between obtaining the first and final portions of a
composite sample shall not exceed _____ minutes. - -15
-Start the tests for slump, temperature, and air content within _____ minutes
after obtaining the final portion of the composite sample. - -5
-Start molding specimens for strength tests within _____ minutes after
fabricating the composite sample. - -15
-The concrete sample must be protected from _____ and _____ - -
contamination, evaporation
-The minimum size sample for making strength test specimens is _____ - -1
cubic foot
-When sampling from a stationary mixer, the batch must be sampled at
_____ or more regularly spaced intervals during the discharge of the middle
_____% of the batch. - -2, 80
-When sampling from a revolving drum truck mixer, concrete must be
sampled at a minimum of _____ regularly spaced intervals during discharge
of the middle _____% of this batch. - -2, 80
-When sampling from a paving mixer, obtain samples from at least _____
different portions of the pile and combine into one composite sample. - -5
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 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 Victorious23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.09. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now