« previous next »

Author Question: Concrete normally attains its design strength in about _____. a. 14 days b. 21 days c. 28 days ... (Read 94 times)

Mr.Thesaxman

  • Hero Member
  • *****
  • Posts: 514
on: Jul 24, 2018
Concrete normally attains its design strength in about _____.
 
  a. 14 days
  b. 21 days
  c. 28 days
  d. 30 days

Question 2

Steel is used for reinforcement because it _____.
 
  a. will not corrode
  b. has nearly the same temperature expansion and contraction rate as concrete
  c. has a lower temperature expansion and contraction rate than concrete
  d. is inexpensive


ryhom

  • Sr. Member
  • ****
  • Posts: 366
Reply #1 on: Jul 24, 2018
Answer to Question 1

c

Answer to Question 2

b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Strength of Knee Joint Strength of Knee Joint
Masamichi Udagawa and Sigi Moeslinger, Antenna Design, Knoll Toboggan Chair. Masamichi Udagawa and Sigi Moeslinger, Antenna Design, Knoll Toboggan Chair.
A typical engine design that uses both pressure and splash lubrication. Oil travels under pressure ... A typical engine design that uses both pressure and splash lubrication. Oil travels under pressure ...
Testing the strength of the tongue Testing the strength of the tongue
Starting Out with Programming Logic and Design Starting Out with Programming Logic and Design
After 159 days,she paid a maturity value of $11,626, which included interest of $814. After 159 days,she paid a maturity value of $11,626, which included interest of $814.
Video: Generalized life cycles for plants and animals Animation

For a complete list of videos, visit our video library