ASTM C901-93a
(Specification)Standard Specification for Prefabricated Masonry Panels
Standard Specification for Prefabricated Masonry Panels
SCOPE
1.1 This specification covers the structural design and quality control of fabrication for load-bearing and non-load-bearing prefabricated masonry panels. Methods of prefabrication, field erection, and jointing are not covered in this specification.
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Designation: C 901 – 93a
Standard Specification for
Prefabricated Masonry Panels
This standard is issued under the fixed designation C 901; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope C 73 Specification for Calcium Silicate Face Brick (Sand-
Lime Brick)
1.1 This specification covers the structural design and qual-
C 90 Specification for Load-Bearing Concrete Masonry
ity control of fabrication for load-bearing and non-load-bearing
Units
prefabricated masonry panels. Methods of prefabrication, field
C 109 Test Method for Compressive Strength of Hydraulic
erection, and jointing are not covered in this specification.
Cement Mortars (Using 2-in. or 50-mm Cube Specimens)
2. Referenced Documents C 126 Specification for Ceramic Glazed Structural Clay
Facing Tile, Facing Brick, and Solid Masonry Units
2.1 ASTM Standards:
C 140 Methods of Sampling and Testing Concrete Masonry
A 82 Specification for Steel Wire, Plain, for Concrete Re-
Units
inforcement
C 145 Specification for Solid Load-Bearing Concrete Ma-
A 116 Specification for Zinc-Coated (Galvanized) Steel-
sonry Units
Woven Wire Fence Fabric
C 212 Specification for Structural Clay Facing Tile
A 153 Specification for Zinc Coating (Hot-Dip) on Iron and
C 216 Specification for Facing Brick (Solid Masonry Units
Steel Hardware
Made from Clay or Shale)
A 167 Specification for Stainless and Heat-Resisting
C 270 Specification for Mortar for Unit Masonry
Chromium-Nickel Steel Plate, Sheet, and Strip
C 476 Specification for Grout for Masonry
A 185 Specification for Steel Welded Wire, Fabric, Plain,
C 652 Specification for Hollow Brick (Hollow Masonry
for Concrete Reinforcement
Units Made from Clay or Shale)
A 615/A615M Specification for Deformed and Plain Billet-
C 744 Specification for Prefaced Concrete and Calcium
Steel Bars for Concrete Reinforcement
Silicate Masonry Units
A 616/A616M Specification for Rail-Steel Deformed and
C 780 Test Method for Preconstruction and Construction
Plain Bars for Concrete Reinforcement
Evaluation of Mortars for Plain and Reinforced Unit
A 617/A617M Specification for Axle-Steel Deformed and
Masonry
Plain Bars for Concrete Reinforcement
C 1019 Test Method of Sampling and Testing Grout
B 227 Specification for Hard-Drawn Copper-Clad Steel
E 72 Methods of Conducting Strength Tests of Panels for
Wire
Building Construction
C 34 Specification for Structural Clay Load-Bearing Wall
E 447 Test Methods for Compressive Strength of Masonry
Tile
Prisms
C 55 Specification for Concrete Building Brick
E 518 Test Method for Flexural Bond Strength of
C 62 Specification for Building Brick (Solid Masonry Units
Masonry
Made from Clay or Shale)
C 67 Test Methods for Sampling and Testing Brick and
3. Materials and Manufacture
Structural Clay Tile
3.1 Masonry Units— Masonry units shall conform to the
following applicable specifications:
3.1.1 Brick—Specification C 62 for building brick, Specifi-
This specification is under the jurisdiction of ASTM Committee C-15 on
cation C 216 for facing brick, Specification C 126 for ceramic
Manufactured Masonry Units and is the direct responsibility of Subcommittee
glazed structural clay tile, facing brick, and solid masonry
C15.05 on Masonry Assemblages.
units, and Specification C 652 for hollow brick.
Current edition approved Oct. 15, 1993. Published December 1993. Originally
published as C 901 – 79. Last previous edition C 901 – 93.
3.1.2 Concrete Masonry Units—Specification C 55 for con-
Annual Book of ASTM Standards, Vol 04.07.
crete building brick, Specification C 90 for hollow
Annual Book of ASTM Standards, Vol 01.04.
4 load-bearing concrete masonry units, Specification C 145 for
Annual Book of ASTM Standards, Vol 01.06.
Annual Book of ASTM Standards, Vol 01.03.
Annual Book of ASTM Standards, Vol 02.03.
7 8
Annual Book of ASTM Standards, Vol 04.05. Annual Book of ASTM Standards, Vol 04.01.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
C 901
solid load-bearing concrete masonry units, and Specification In the absence of a local building code, the requirements of a
C 744 for prefaced concrete masonry units. national model building code shall govern. The applicable code
3.1.3 Calcium Silicate Face Brick—Specification C 73 for shall be identified on the plans. Structural design of panels
calcium silicate face brick. shall consider all loading and restraint conditions from initial
3.1.4 Structural Clay Tile—Specification C 212 for struc- fabrication to in-service conditions in the completed structure,
tural clay facing tile, Specification C 34 for structural clay including storage, transportation, and erection. The design
load-bearing wall tile, and Specification C 126 for ceramic loads shall be of the type and magnitude required by the
glazed structural clay tile, facing brick, and solid masonry applicable building code. Panels and connections required to
units. resist wind, seismic, or other dynamic loads shall be designed
3.2 Mortar and Grout— Mortar and grout shall conform to to resist the required positive and negative forces in all
the following applicable specifications: directions. The joints between dissimilar materials within each
3.2.1 Mortar—Specification C 270 for mortar for unit ma- panel, between panels, and between panels and their structural
sonry. supports shall be designed to accommodate differential move-
3.2.2 Reinforced Masonry—Specification C 476 for grout ment and deflections of each material, panel, and adjacent
for masonry. building elements.
3.2.3 Other mortars may be used, provided properties for 4.2 Lifting Devices— Lifting devices and their connections
such construction are established by tests made in accordance to the panels shall have an ultimate capacity of four times the
with Methods E 72. dead weight of the appropriate portion of the panel. Inclination
3.3 Metal Ties, Fittings, Anchors, Lifting Inserts, and Other of the lifting forces shall be considered.
Embedded Metal—All metal embedded in masonry walls shall
5. Dimensions and Permissible Variations
comply with the applicable specifications in accordance with
3.4 and, except for structural reinforcement, shall be coated 5.1 Standard Dimensions—The standard nominal widths
and heights of the panels shall be in multiples of nominal
with a corrosion-resistant material, such as copper, zinc, or
other material having equivalent or better corrosion-resistant individual masonry unit heights and lengths. The nominal
thickness of panels shall be the sum of the nominal thicknesses
qualities, or shall be made of stainless steel type 304 or 316
(see Specification A 167). Upon request by the purchaser, of the masonry units in the panels plus the nominal thickness
of cavities, if any. The specified dimensions may be less than
evidence satisfactory to the purchaser shall be provided that all
the required nominal dimensions by the thickness of one
corrosion-resistant metal is adequate in the atmospheric and
mortar joint but not by more than ⁄2 in. (13 mm).
material environment in which it is to be used.
5.2 Custom Dimensions—For custom installations, all di-
3.3.1 Zinc coatings on iron or steel shall conform to Class
mensions of panels shall be as shown on the drawings or as
B-1, B-2, or B-3 of Specification A 153.
specified.
3.3.2 Zinc coating on wire shall conform to Class 3 of
5.3 Thickness of panels—The actual thickness of the panels
Specification A 116.
shall be as required for adequate strength, fire resistance, or
3.3.3 Copper-coated wire shall conform to Grade 30HS of
other design criteria for the type of construction and occupancy
Specification B 227.
as required by the applicable building code.
3.3.4 Stainless steel shall conform to type 304 or type 316 in
5.4 Dimensional Tolerances—Based on actual dimensions,
Specification A 167.
a prefabricated masonry wall panel shall not vary from the
3.4 Reinforcement— Reinforcement shall conform to the
specified face dim
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