SECTION 04081
MASONRY JOINT REINFORCEMENT
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Copyright 2011 ARCAT, Inc. - All rights reserved
PART 1 GENERAL
1.1
1.2
1.3
SECTION INCLUDES
A.
Single wythe reinforcement system.
B.
Multi-wythe reinforcement system.
C.
Seismic joint reinforcement system.
D.
Random/rubble stone systems.
E.
Masonry veneer reinforcement system.
RELATED SECTIONS
A.
Section 04065 - Masonry Mortar and Grout: Mortar and grout.
B.
Section 04810 - Unit Masonry Assemblies.
C.
Section 04812 - Glass Masonry Assemblies.
D.
Section 04840 - Shop Prefabricated Masonry Panels.
E.
Section 04850 - Stone Assemblies.
F.
Section 05400 - Cold Formed Metal Framing.
G.
Section 07212 - Board Insulation: Insulation for cavity spaces.
H.
Section 09250 - Gypsum Board: Gypsum sheathing.
REFERENCES
A.
ASTM A82 - Standard Specification for Cold-Drawn Steel Wire for Concrete
Reinforcement.
B.
ASTM A15 3/A153M - Zinc Coating (Hot-Dip) on Iron and Steel Hardware.
C.
ASTM A58 0/A580M - Standard Specification for Stainless Steel Wire.
D.
ASTM A64 1/A641M - Standard Specification for Zinc-Coated (Galvanized) Carbon
Steel Wire.
04081-1
E.
1.4
1.5
1.6
SUBMITTALS
A.
Submit under provisions of Section 01300.
B.
[ Product Data ]: Manufacturer's data sheets on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Verification Samples: For each product specified, two samples; lineal samples
provide a minimum length of 12 inches (300 mm).
D.
Certificates: Certify products meet or exceed specified requirements.
QUALITY ASSURANCE
A.
Mock-Up: Provide a mock-up for evaluation of reinforcing techniques and
application workmanship.
1.
Finish areas designated by Architect.
2.
Do not proceed with remaining work until workmanship is approved by
Architect.
3.
Rework mock-up as required to produce acceptable work.
B.
Pre-Installation Conference: Convene a pre-installation conference to coordinate the
installation of masonry reinforcement with adjacent construction including
sheathing, air barriers and insulation as applicable.
DELIVERY, STORAGE, AND HANDLING
A.
1.7
ASTM A951 - Standard Specification for Masonry Joint Reinforcement.
Store products in manufacturer's unopened packaging until ready for installation.
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within
limits recommended by manufacturer for optimum results. Do not install products
under environmental conditions outside manufacturer's absolute limits.
PART 2 PRODUCTS
2.1
2.2
MANUFACTURERS
A.
Acceptable Manufacturer: Dur-O-Wal, which is located at: 7777 Washington Village
Dr. ; Dayton, OH 45459; Toll Free Tel: 800-323-0090; Email: request info
(path@h-b.com); Web: www.dur-o-wal.com
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of
Section 01600.
SINGLE WYTHE WALL SYSTEMS
A.
Dur-O-Wall Truss: D/A 310 sized for wall widths indicated with reinforcing 2 inches
less than nominal width of the masonry wall:
1.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Uncoated
04081-2
b.
2.
3.
2.3
Mill galvanized to ASTM A641 after fabrication:
1)
Class 3, 0.80 oz/sf (244 g/sm).
2)
Class 1, 0.40 oz/sf (122 g/sm).
c.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
Stainless steel conforming to ASTM A58 0, Type 304.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
B.
Dur-O-Wall Ladur: D/A 320 sized for wall widths indicated with reinforcing 2 inches
less than nominal width of the masonry wall:
1.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Uncoated
b.
Mill galvanized to ASTM A641 after fabrication:
1)
Class 3, 0.80 oz/sf (244 g/sm).
2)
Class 1, 0.40 oz/sf (122 g/sm).
c.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
2.
Stainless steel conforming to ASTM A58 0, Type 304.
3.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Medium, 8 gauge side rods, 9 gauge cross rods.
c.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
C.
Prefabricated Corners and Tees: Provide to match single wythe wall reinforcing
system specified.
MULTI-WYTHE WALL SYSTEMS
A.
Dur-O-Wall Truss: Sized for wall widths indicated:
1.
Type:
a.
Tri-Rod: D/A 310TR.
b.
Double Side Rod: D/A 310DSR.
c.
Dur-O-Eye: D/A 370.
d.
Dur-O-Tab: D/A 350.
e.
Adjustable Dur-O-Tab: D/A 330.
2.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Uncoated.
b.
Mill galvanized to ASTM A641 after fabrication:
1)
Class 3, 0.80 oz/sf (244 g/sm).
2)
Class 1, 0.40 oz/sf (122 g/sm).
c.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
3.
Stainless steel conforming to ASTM A58 0, Type 304.
4.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
B.
Dur-O-Wall Ladur: Sized for wall widths indicated:
1.
Type:
a.
Tri-Rod: D/A 320TR
b.
Double Side Rod: D/A 320DSR
c.
Ladur-Eye: D/A 360
d.
CRT: D/A 340
e.
Adjustable CRT: D/A 300
2.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Uncoated
b.
Mill galvanized to ASTM A641 after fabrication:
1)
Class 3, 0.80 oz/sf (244 g/sm).
04081-3
3.
4.
C.
2.4
2)
Class 1, 0.40 oz/sf (122 g/sm).
c.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
Stainless steel conforming to ASTM A58 0, Type 304.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Medium, 8 gauge side rods, 9 gauge cross rods.
c.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
Prefabricated Corners and Tees: Provide to match multi-wythe wall reinforcing
system specified.
SEISMIC JOINT REINFORCEMENT SYSTEMS
A.
Dur-O-Wall Truss Seismic Dur-O-Eye: D/A 370 S, sized for wall widths indicated:
1.
Adjustable Steel Plate Pintle: 16 gauge steel plate welded to reinforcing
spaced 16 inches (400 mm) O.C. and accommodating adjustable steel pintles
and wire reinforcing with up to 1-1/4 inch (30 mm) vertical adjustment.
2.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Uncoated
b.
Mill galvanized to ASTM A641 after fabrication:
1)
Class 3, 0.80 oz/sf (244 g/sm).
2)
Class 1, 0.40 oz/sf (122 g/sm).
c.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
3.
Dur-O-Wall Truss: Stainless steel conforming to ASTM A58 0, Type 304.
4.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
B.
Dur-O-Wall Ladur Seismic Ladur-Eye: D/A 360 S, sized for wall widths indicated:
1.
Adjustable Steel Plate Pintle: 16 gauge steel plate welded to reinforcing
spaced 16 inches (400 mm) O.C. and accommodating adjustable steel pintles
and wire reinforcing with up to 1-1/4 inch (30 mm) vertical adjustment.
2.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Uncoated
b.
Mill galvanized to ASTM A641 after fabrication:
1)
Class 3, 0.80 oz/sf (244 g/sm).
2)
Class 1, 0.40 oz/sf (122 g/sm).
c.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
3.
Dur-O-Wall Truss: Stainless steel conforming to ASTM A58 0, Type 304.
4.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Medium, 8 gauge side rods, 9 gauge cross rods.
c.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
C.
Dur-O-Wall Ladur Seismic Ladur: D/A 320 S, sized for wall widths indicated:
1.
Double wire system at face joints.
2.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Uncoated.
b.
Mill galvanized to ASTM A641 after fabrication:
1)
Class 3, 0.80 oz/sf (244 g/sm).
2)
Class 1, 0.40 oz/sf (122 g/sm).
c.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
3.
Dur-O-Wall Truss: Stainless steel conforming to ASTM A58 0, Type 304.
4.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Medium, 8 gauge side rods, 9 gauge cross rods.
c.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
04081-4
2.5
D.
Prefabricated Corners and Tees: Provide to match wall reinforcing system specified.
E.
Dur-O-Wall Seismic Veneer Anchors:
1.
Anchor Type:
a.
Adjustable steel plate and pintle. 16 gauge steel plate welded to
reinforcing spaced 16 inches (400 mm) O.C. and accommodating
adjustable steel pintles and wire reinforcing with up to 1-1/4 inch (30
mm) vertical adjustment.
1)
Face mounted to concrete or CMU, D/A 5213.
2)
Face mounted to steel stud, wood stud or steel frame, D/A 213S.
b.
Seismic channel slot anchor: D/A 931 with adjustable steel plate and
pintle. 16 gauge steel plate welded to reinforcing spaced 16 inches
(400 mm) O.C. and accommodating adjustable steel pintles and wire
reinforcing with up to 1-1/4 inch (30 mm) vertical adjustment.
c.
Seismic strap anchor: D/A 431931 with adjustable steel plate and
pintle. 16 gauge steel plate welded to reinforcing spaced 16 inches
(400 mm) O.C. and accommodating adjustable steel pintles and wire
reinforcing with up to 1-1/4 inch (30 mm) vertical adjustment.
d.
Seismic dovetail anchor: D/A 131.
2.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Uncoated
b.
Mill galvanized to ASTM A641 after fabrication:
1)
Class 3, 0.80 oz/sf (244 g/sm).
2)
Class 1, 0.40 oz/sf (122 g/sm).
c.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
3.
Dur-O-Wall Truss: Stainless steel conforming to ASTM A58 0, Type 304.
4.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Medium, 8 gauge side rods, 9 gauge cross rods.
c.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
5.
Fasteners:
a.
Stainless Steel: D/A 995.
b.
Corrosion Resistant: D/A 807 for metal studs.
c.
Corrosion Resistant: D/A 808 for use with wood studs.
RANDOM/RUBBLE STONE SYSTEMS
A.
Dur-O-Wall Adjustable Truss Joint Reinforcement for Random Rubble Stone Sized
for wall widths indicated:
1.
Triangular tie with restraint bar welded at 16 inches (400 mm) O.C. to Truss
Type joint reinforcement with adjustable 3/8 inch (10 mm) J-bars with
triangular ties for insertion into stone veneer.
2.
Steel wire conforming to ASTM A82 and A951 with following finish:
a.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
3.
Stainless steel conforming to ASTM A58 0, Type 304.
4.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
c.
Super Heavy, 3/16 inch (5 mm) side rods; 3/16 inch (5 mm) cross rods.
B.
Dur-O-Wall Adjustable Ladur Joint Reinforcement for Random Rubble Stone Sized
for wall widths indicated:
1.
Triangular tie with restraint bar welded at 16 inches (400 mm) O.C. to Ladur
Type joint reinforcement with adjustable 3/8 inch (10 mm) J-bars with
triangular ties for insertion into stone veneer.
2.
Steel wire conforming to ASTM A82 and A951 with following finish:
04081-5
3.
4.
C.
2.6
a.
Hot dip galvanized to ASTM A153 Class B2 after fabrication.
Stainless steel conforming to ASTM A58 0, Type 304.
Weight Class:
a.
Standard, 9 gauge side rods; 9 gauge cross rods.
b.
Extra Heavy, 3/16 inch (5 mm) side rods; 9 gauge cross rods.
c.
Super Heavy, 3/16 inch (5 mm) side rods; 3/16 inch (5 mm) cross rods.
Prefabricated Corners and Tees: Provide to match Random Rubble Stone wall
system specified.
MASONRY VENEER ANCHOR SYSTEMS
A.
Dur-O-Wall Veneer Anchor Type:
1.
D/A 213 formed steel plate accommodating adjustable wire reinforcing for
attaching veneers to masonry or other structural backing and in cavity walls
where air space is greater than 3/4 inch (191 mm).
2.
D/A 431 steel plate accommodating adjustable wire reinforcing for attaching
veneers to masonry or other structural backing and use in cavity walls where
air space is less than 3/4 inch (191 mm).
3.
D/A 207 and D/A 709 steel plate accommodating adjustable wire reinforcing
and designed to be welded to steel columns with D/A 700-708 Triangle Ties
as applicable.
4.
Dovetail Slots and Anchors: For use with solid structures such as concrete or
steel framing.
a.
Steel Frame Type D/A 720-724.
b.
Dovetail Slot Type D/A 100.
1)
Material and thickness:
a)
Steel.
b)
Stainless steel.
c)
24 Gauge (.61 mm).
d)
22 Gauge (.76 mm).
e)
20 Gauge (.91 mm).
2)
Finish
a)
G60 galvanized.
b)
Hot dip galvanized
c)
Stainless steel.
c.
Dovetail Anchor Type
1)
D/A 201.
2)
D/A 202.
3)
D/A 203.
4)
D/A 204.
5)
D/A 205.
6)
D/A 131.
d.
Dovetail Anchor Material:
1)
Clip for Tri-Tie: 12 Gauge (2.7 mm) Steel.
2)
Steel Wire Tie: 3/16 inch (5 mm)
3)
Sheet Metal Anchors 16 Gauge (1.5 mm) Steel.
4)
Sheet Metal Anchors 12 Gauge (2.7 mm) Steel.
5)
Sheet Metal Anchors 1/8 inch (3 mm) Steel.
6)
Sheet Metal Anchors 3/16 inch (5 mm) Steel.
e.
Dovetail Anchor Finish:
1)
Mill galvanized.
2)
Hot dip galvanized.
5.
Channel Slots and Anchors: For use with solid structures such as concrete or
steel framing.
a.
Channel Slot
04081-6
1)
6.
7.
Type:
a)
D/A 901.
b)
D/A 902.
c)
D/A 903.
d)
D/A 904.
2)
Material:
a)
16 gauge (1.5 mm) steel.
b)
11 gauge (3.0 mm) steel.
3)
Finish:
a)
Mill galvanized.
b)
Hot dip galvanized.
b.
Dovetail Anchors
1)
Type:
a)
D/A 911.
b)
D/A 913.
c)
D/A 914.
d)
D/A 917.
e)
D/A 918-922.
f)
D/A 931.
2)
Material:
a)
Clip for Tri-Tie: 12 Gauge (2.7 mm) Steel.
b)
Steel Wire Tie: 3/16 inch (5 mm).
c)
Sheet Metal Anchors 16 Gauge (1.5 mm) Steel.
d)
Sheet Metal Anchors 12 Gauge (2.7 mm) Steel.
e)
Sheet Metal Anchors 1/8 inch ( 3 mm) Steel.
f)
Sheet Metal Anchors 3/16 inch ( 5 mm) Steel.
3)
Finish:
a)
Mill galvanized.
b)
Hot dip galvanized.
Notched Steel Column Anchor: D/A 601. 1/8 inch (3 mm) thick steel:
a.
G60 galvanized.
b.
Hot dip galvanized.
c.
Stainless steel.
Notched Steel Column Anchor: D/A 604. 16 Gauge (1.5 mm) thick steel:
a.
G60 galvanized.
b.
Hot dip galvanized.
c.
Stainless steel.
PART 3 EXECUTION
3.1
3.2
3.3
EXAMINATION
A.
Verify that field conditions are ready to receive the work of this Section.
B.
Do not begin installation until substrates have been properly prepared.
C.
If substrate preparation is the responsibility of another installer, notify Architect of
unsatisfactory preparation before proceeding.
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for
achieving the best result for the substrate under the project conditions.
INSTALLATION
04081-7
A.
Install in accordance with manufacturer's instructions and the applicable building
code.
B.
Single Wythe Masonry:
1.
Install horizontal joint reinforcement 16 inches (400 mm) o.c.
2.
Place masonry joint reinforcement in first and second horizontal joints above
and below openings. Extend minimum 16 inches (400 mm) each side of
opening.
3.
Place joint reinforcement continuous in first and second joint below top of
walls.
4.
Lap joint reinforcement ends minimum 6 inches (150 mm).
5.
Reinforce joint corners and intersections with prefabricated corner units 16
inches (400 mm) o.c.
6.
Support and secure reinforcing bars from displacement. Maintain position
within 1/2 inch (13 mm) of dimensioned position.
C.
Multiple Wythe Unit Masonry:
1.
Install horizontal joint reinforcement 16 inches (400 mm) o.c.
2.
Place masonry joint reinforcement in first and second horizontal joints above
and below openings. Extend minimum 16 inches (400 mm) each side of
opening.
3.
Place joint reinforcement continuous in first and second joint below top of
walls.
4.
Lap joint reinforcement ends minimum 6 inches (150 mm).
5.
Reinforce joint corners and intersections with prefabricated corner units 16
inches (400 mm) o.c.
6.
Support and secure reinforcing bars from displacement. Maintain position
within 1/2 inch (13 mm) of dimensioned position.
7.
Place anchors embedded in concrete in every:
a.
Second block joint.
b.
Sixth brick joint.
c.
_________ joint.
8.
Place anchors fastened to concrete or masonry in every:
a.
Second block joint.
b.
Sixth brick joint.
c.
_________ joint.
9.
Place anchors attached to structural members in every:
a.
Second block joint.
b.
Sixth brick joint.
c.
_________ joint.
10.
Secure rigid insulation in place with rigid insulation retainer at each masonry
wall tie connector location on horizontal joint reinforcement.
D.
Masonry Veneer:
1.
Install horizontal joint reinforcement 16 inches (400 mm) o.c.
2.
Place masonry joint reinforcement in first and second horizontal joints above
and below openings. Extend minimum 16 inches (400 mm) each side of
opening.
3.
Place joint reinforcement continuous in first and second joint below top of
walls.
4.
Lap joint reinforcement ends minimum 6 inches (150 mm).
5.
Place anchors embedded in concrete backing in every:
a.
Second block joint.
b.
Sixth brick joint.
c.
_________ joint.
6.
Place anchors fastened to concrete or masonry backing in every:
04081-8
7.
8.
3.4
a.
Second block joint.
b.
Sixth brick joint.
c.
_________ joint.
Place anchors attached to structural framed backing in every:
a.
Second block joint.
b.
Sixth brick joint.
c.
_________ joint.
Secure rigid insulation in place with an acceptable rigid insulation retainer at
each masonry wall tie connector location on horizontal joint reinforcement.
PROTECTION
A.
Protect installed products until completion of project.
B.
Repair or replace damaged products before Substantial Completion.
END OF SECTION
04081-9