The eLearning Center for Gatlin Education Services

Overview

In general, concrete construction using low-density concrete is quite similar to using normal-density concrete. Constructability considerations related to mixing, placing, curing, pumping, and testing controls must be addressed in order to maximize the quality of concrete and avoid problems during construction. The use of low-density concrete provides several advantages with the primary, and most obvious, benefit being a 15 to 25% savings in weight without sacrificing the overall strength of a structure. However, its use can result in a considerable impact to the structural design and cost of the structure.

In this course, the student will review Engineer Circular (EC) 1110-2-6055, "Engineering and Design - Construction Considerations for Low-Density Concrete" published by the U.S. Army Corp of Engineers (issued 30 August 2002). This course is most relevant to engineers involved with, or wishing to attain knowledge on, construction using low-density concrete.

The student is recommended to review the companion course "Low-Density Concrete: Properties" based on Engineer Circular (EC) 1110-2-6054. The referenced course provides detailed information on the properties of low-density concrete and its comparison to normal-density concrete.

The student must take a multiple-choice quiz consisting of ten (10) questions at the end of this course to earn PDH credits.

Specific Knowledge or Skill Attained

This course teaches the following specific knowledge and skills:

  · Basic terminology and abbreviations associated with low-density and normal-density concrete and aggregates
  · Learn constructability considerations on topics related to the mixing, placing, pumping, curing, and laboratory and field control of low-density concrete.
  · Economic considerations when using low-density concrete

State Board Acceptance

This course can be used by professional engineers to fulfill PDH requirements mandated by state and provincial licensing boards. Decatur Professional Development is an approved provider of continuing education in all states that pre-approve course providers. In all other states that mandate continuing education for engineers, it is the individual engineer's responsibility to determine the suitability of activities for PDH credit. The state boards typically accept online* courses that cover technical, managerial** or ethical content and which are relevant to the practice of engineering. The course must have a clear purpose or objective with a content that will maintain, improve or expand the skills and knowledge of the licensee's field of practice. For questions about your mandatory PDH requirements, visit the website of your state licensing board.

*Online courses are accepted by all state licensing boards that mandate continuing education. Other than New York (which limits online courses to 18 PDH) and Iowa (which limits online courses to 6 PDH), there are no limits placed by other states on the number of hours that can be earned through online continuing education. Consult with your state licensing board if you have any questions about the acceptability of online courses.

**The New York State Board of Engineers does not accept general office management courses, but will accept project management courses that are offered by an approved provider and that are technical in nature and contribute to the engineer's professional practice.

Please Note: Continuing Education credits for this course are awarded as PDH (Professional Development Hour Credits).