DEPARTMENT OF THE ARMY
ETL 1110-2-343
U.S. Army Corps of Engineers
CECW-ED
Washington, DC 20314-1000
Engineer Technical Letter
No. 1110-2-343
31 May 1993
Engineering and Design
STRUCTURAL DESIGN USING THE ROLLER-COMPACTED
CONCRETE (RCC) CONSTRUCTION PROCESS
1. Purpose
4. Purpose
This engineer technical letter (ETL) provides
RCC has developed over the past 20 years in
guidance for design engineers considering roller-
response to the need to provide more economical
compacted concrete (RCC) as a cost-saving alterna-
mass concrete structures that can be constructed
tive for civil works structures.
rapidly. RCC is replacing conventional mass con-
crete as the primary construction material for
2. Applicability
gravity dams and has become a viable alternative
material for structures other than dams. The
This ETL applies to all HQUSACE elements, major
enclosed guidance (Enclosure 1) also provides
subordinate commands, districts, laboratories, and
design engineers with material considerations for
separate field operating activities having civil works
RCC to assure that the completed structure meets
responsibilities for the design of civil works
strength and serviceability requirements. The
projects.
enclosure includes:
3. References
a. Structural design guidance for RCC
structures.
a. EM 1110-2-2000, Standard Practice for
b. Examples of past usage and the types of
Concrete.
structures suited to RCC construction.
b. EM 1110-2-2006, Roller Compacted
c. Similarities and differences with respect to
Concrete.
conventionally placed mass concrete.
c. Draft EM 1110-2-2200, Gravity Dam
d. The structural engineer's role in the testing
Design.
and construction processes.
d. ETL 1110-2-324, Special Design Provisions
e. Construction processes and features unique
for Massive Concrete Structures.
to RCC construction.
e. ACI Committee 207, Roller Compacted
f. Material properties that affect strength, ser-
Concrete, 207.5R, ACI Materials Journal,
September - October 1988.
viceability, durability, impermeability, and density.
f. ACI Committee 210, Erosion of Concrete in
g. Processes and procedures necessary to
Hydraulic Structures, ACI 210R-87, ACI Materials
establish accurate strength parameters for design.
Journal, March - April 1987.
g. Heaton, B. S. 1968 (Oct). Strength, Dura-
bility and Shrinkage of Incompletely Compacted
Concrete, pp 846-850.
Previous Page
