SECTION 04220
CONCRETE
UNIT MASONRY
PART 1 -
GENERAL
1.03 RELATED
WORK SPECIFIED ELSEWHERE
A.
Related sections:
1.04 QUALITY
ASSURANCE
A.
Submittals
1.
Certificates of compliance
with all applicable ASTM and UBC standards shall be
submitted on all products specified herein.
2.
Sample
Specimens:
Include
number and type of samples needed; include mortar ribbon
samples, if desired.
B.
Sample Panel
1.
Construct an approximate
6 feet long by 4 feet high mock-up panel for representation
of completed masonry, joint tooling, design details,
and workmanship.
2.
Panel
C.
Inspections:
Testing
is not usually performed unless required by certain
code jurisdictions or for masonry utilizing higher
than allowable stresses defined in the applicable
code. To include or hide Section D, the Tests section
below, select below.
D.
Tests: Owner
shall pay all costs for tests.
1.
Concrete masonry units per
ASTM C 140.
2.
Mortar per UBC Standard
21-6.
3.
Grout per ASTM C 1019.
4.
Prisms per UBC Standard
21-17.
PART 2 -
MATERIALS
2.01 CONCRETE
MASONRY UNITS
A.
Loadbearing
concrete masonry units shall conform to UBC Standard
21-4, Grade N, and ASTM C 90. All
units shall be
1900psi or
/
, as manufactured
by Orco Block Co., Inc.
Texture
Feature
Color
1.
Select Texture
Precision
Split Face
Slump
2.
Select Texture
Precision
Split Face
Slump
3.
Select Texture
Precision
Split Face
Slump
4.
Select Texture
Precision
Split Face
Slump
Select
to include section below for OrcoStone® units.
B.
Loadbearing concrete masonry units shall conform to
UBC Standard 21-4, Grade N, and ASTM C 90. All
units shall be
1900psi or
/
, as manufactured
by Orco Block Co., Inc.
Orco Burnish
is a machine ground block with less then 1/16th
of an inch removed from the surface of the unit.
This exposes the natural beauty of the aggregate
inside the block. Burnished units go well as either
interior or exterior finished surfaces and can be
ground on all four sides which offers versatility
to your project.
Orco ShotBlast is
a bead blasted surface finish produced in an enclosed
dust free environment in our manufacturing facility.
The process exposes the aggregate and cement and
gives the block a weathered texture.Orco Burst gives
block an integrally colored variegated surface.
It is produced by blending two or more colors into
a block. The burst unit offers a beautiful marbled
look to the overall surface and can be provided
in any texture.
Texture
Feature
Color
1.
Select Texture
Orco Burnished
Orco Shotblast
Orco Burst
2.
Select Texture
Orco Burnished
Orco Shotblast
Orco Burst
3.
Select Texture
Orco Burnished
Orco Shotblast
Orco Burst
Select
to include section below for Premier Glaze® units.
C.
All
glazed masonry units shall be Premier Glaze units
manufactured by Premier Block Corporation.
Concrete masonry unit for glazing
shall be lightweight, conforming to ASTM C 90, Type
I.
Glazed surface shall be externally
heat-polymerized cast-on facing conforming to ASTM
C 744. Enter colors below. (Choose color: http://www.premierblock.com/glazed_color.html
a. Premier
Glaze Color 1:
b. Premier
Glaze Color 2:
3.
Glazed units are special
order and require manufacturing lead time.
Select
to include section below for Premier Ultra® Burnished
units.
D.
All high density
prefinished concrete masonry units shall be ULTRA®
BURNISHED masonry units manufactured by Premier Block
Corporation.
1.
Units with factory applied,
heat-treated acrylic finish shall be Premier ULTRA®
BURNISHED units, conforming to ASTM C 744 with respect
to adhesion, abrasion, color change, and resistance
to crazing, and ASTM C 67 with respect to freezing and
thawing. Enter colors below. (Choose color: http://www.premierblock.com/ucolor.html
a. Premier ULTRA®
BURNISHED Color 1:
b. Premier ULTRA®
BURNISHED Color 2:
2.
Ground face units are special
order and require manufacturing lead time.
2.02 MORTAR
A.
Mortar
shall be Orco Blended Products Preblended Masonry Mortar
conforming to the proportion
and property specifications of ASTM C 270, as manufactured
by Orco Blended Products, Highland, CA.
2.03 GROUT
A.
Preblended
Grout: Orco Blended Products, Concrete 30/70,
. Grout Mix manufactured
by Orco Blended Products may be used per manufacturer’s
specifications.
B.
Grout shall conform to UBC Standard 21-19 or ASTM
C 476, proportions per UBC Table 21-B.
C.
Use of fine
or course grout shall be per UBC Table 21-C.
2.04 REINFORCING
STEEL
A.
Reinforcing
bars shall conform to
This is the most
commonly used. Other standards include:
END OF SECTION
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