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Low-Density Concrete:
Construction Considerations
Tomas Orihuela, P.E.
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:
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Basic terminology and
abbreviations associated with low-density and normal-density concrete and
aggregates.
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Learn constructability
considerations on topics related to the mixing, placing, pumping, curing, and
laboratory and field control of low-density concrete.
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Economic considerations
when using low-density concrete.
Course
Click on the following PDF attachment to 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) prior to taking a quiz for credit.
"Construction
Considerations for Low-Density Concrete" (526 KB)
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To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
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