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REMOVE THIS OUTLINE GUIDE BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

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O U T L I N E G U I D E

[DIVISION 3: CONCRETE]{.underline}

SECTION 03361 - SHOTCRETE

USE: Furnishing and applying reinforced and unreinforced shotcrete \[and
sand-cement slurry plaster coating\].

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[[ ]{.underline}\] provide for
information to be inserted, as appropriate to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface,
**and *italics* within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately).

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED. **Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name Of The Project (upper/lower case).**
Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specifications that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST-110
or call (303) 987-6851.

F. DESIGN NOTES:

1\. **DRAWING DATA REQUIRED:**

A. Indicate on the drawings outlines and dimensions of shotcrete.

B. Indicate on the drawings rebar size, placement, and spacing within
the shotcrete.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes 10/99

Metric: 9/00

Technical Update: 9/00

SECTION 03361

SHOTCRETE

[PART 1: GENERAL]{.underline}

1.1 SUMMARY

A. Section Includes: Furnishing and applying shotcrete \[and sand-cement
slurry plaster\].

B. Related Sections

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LIST ITEMS OF WORK THAT MIGHT LOGICALLY BE FURNISHED AND INSTALLED UNDER
THIS SECTION, BUT INSTEAD ARE SPECIFIED IN ANOTHER SECTION. THIS ARTICLE
IS RARELY REQUIRED.

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1.2 SUBMITTALS

A. Requirements: Submittals shall be according to \[Section 01009 ‑
General Information and Requirements.\] \[Section 01330 ‑ Submittal
Procedures.\] \[and\] \[Section 01331 - Certificates.\]

B. Manufacturer\'s Literature: Submit \[\_\_\_\_\] copies of the
manufacturer\'s descriptive data for the admixtures to be used on this
project. Include the purpose and location in which this shotcrete shall
be placed.

C. Mix Design: Submit \[[ ]{.underline}\] copies of the mix design,
including admixtures to be used for of each strength class and type of
shotcrete, and strength test results prepared by a certified materials
testing laboratory.

D. Mill Test Report: Submit \[[ ]{.underline}\] copies for each shipment
of portland cement.

E. Shop Drawings: Submit details of fabricating, bending, and placing
reinforcement. Include support and anchor details, number and location
of splices, and special reinforcement required for openings through
shotcrete structures.

F. Samples: approximately 24 x 24 x 2-inches (600 x 600 x 50 mm), to
illustrate the quality of finishes, colors, and textures of exposed
surfaces of shotcrete.

G. Equipment: Submit the type of mixing and placing equipment and other
equipment proposed for use on this work.

1.3 QUALITY ASSURANCE

A. Causes for Rejection: Besides failure to meet requirements indicated
elsewhere in this specification section, shotcrete may be rejected for
the following reasons:

1\. Slumping of shotcrete from application sites.

2\. Insufficient reinforcement in samples.

3\. Shotcrete which can be rubbed away with light tool or finger
pressure.

4\. Shrinkage cracks more than hairline or more than one crack per
linear foot surface.

5\. Insufficient thickness.

6\. Placement at inappropriate temperatures.

7\. Aggregate pockets.

B. Placement Notification: Notify contracting Officer 1 working day in
advance of each intended shotcrete placement.

C. Nozzelman Certification: In accordance with ACI 506.2, only nozzleman
with a test panel mean core grade less than or equal to 2.5 shall be
allowed to place job concrete.

D. Preconstruction Testing: For each mix and shooting orientation each
nozzleman shall provide one test panel, minimum dimensions 4 ft x 4 ft
(2400 mm x 2400 mm) by the depths of shotcrete to be placed, or a
minimum depth of 3-1/2 inches (90 mm),whichever is greater, with the
same reinforcement as the jobsite requirements. Field cure panel in the
same manner as the work. Preparation and testing shall comply with ASTM
C 1140. Provide from each test panel the following samples and tests to
determine conformance to job requirements:

1\. Three cores, reinforced, visually graded for compliance with
specified core grade, in accordance with ASTM 506.2.

2\. Three cores, unreinforced, tested for compressive strength according
to ASTM C 1140.

1.4 DELIVERY, STORAGE and HANDLING

A. Cement: Prepackaged cement may be furnished in lieu of bulk cement.
Cement shall be stored in a dry place on wood pallets and used within 6
months of its manufacture. Broken packages subjected to moisture shall
not be used.

B. Aggregate: Shall be handled as to prevent segregation and
contamination by foreign matter, and to ensure that the moisture content
of the sand and fine aggregate does not vary appreciably throughout its
mass. Areas upon which the aggregates are to be stockpiled shall be
firm, clean, non‑contaminating, and self-draining.

1.5 PROJECT/SITE CONDITIONS

A. Installation Condition

1\. Inspect project for conditions which would prevent execution of this
work as specified. Do not install material until such conditions are
corrected.

B. Environmental Conditions

1\. The placing temperature of shotcrete shall not be less than 50
degrees F and shall not exceed 90 degrees F when using normal portland
cement.

2\. Where high early‑strength portland cement is used shotcrete shall be
applied only with the written approval of the Contracting Officer if the
ambient temperature is 50 degrees F or less.

[PART 2: PRODUCTS]{.underline}

2.1 MATERIALS

A. Cement: Shall be according to ASTM C 150 Type \[I\] \[III\].

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FOR SHOTCRETE APPLICATIONS SEVERAL INCHES THICK, GRADATION No. 2 AND No.
3 MAY BE USED. FOR THINNER APPLICATIONS, ONLY GRADATION No. 1 SHOULD BE
LISTED.

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B. Water: Shall be clean and free from harmful amounts of acids,
alkalis, and organic materials according to AASHTO T 26. Potable water
is acceptable without testing.

C. Aggregates

1\. Aggregate for shotcrete shall consist of washed sand and shall be
hard, dense, durable, rounded and graded according to ASTM C 33. The
gradation shall be according to \[and of\] the following:

Percent by Weight Passing Individual Sieves

Sieve Size

U.S. Standard Gradation Gradation Gradation

Square Mesh No. 1 No. 2 No. 3

3/4 inch ‑‑‑ ‑‑‑ 100

1/2 inch ‑‑‑ 100 80‑95

3/8 inch 100 90‑100 70‑90

No. 4 95‑100 70‑85 50‑70

No. 8 80‑100 50‑70 35‑55

No. 16 50‑85 35‑55 20‑40

No. 30 25‑60 20‑35 10‑30

No. 50 10‑30 8‑20 5‑17

No. 100 2‑10 2‑10 2‑10

2\. The sand shall be free from organic and deleterious materials.

3\. Lightweight aggregate shall be according to ASTM C 330.

D. Compressed Air: The air used in shotcrete work shall be clean and
free of oil and moisture.

E. Welded‑Wire Fabric: The size shall be as shown on the drawings and
shall be according to ASTM A 185.

F. Reinforcing Bars: The bars shall be the sizes shown on the drawings,
grade \[60\], according to ASTM A 615.

G. Admixtures: Other than specified herein, or by reference, admixtures
may be used only on written approval of the Contracting Officer.

1\. Admixtures shall be used in strict conformance with the
manufacturer\'s written instructions.

2\. The use of microsilica is recommended to reduce rebound.

H. Curing

1\. Liquid membrane‑forming curing compounds: Shall be according to ASTM
C 309, Type \[I\] \[1-D\].

2\. Sheet Covering: Materials shall be according to ASTM C 171.

2.2 EQUIPMENT

A. Mixing Equipment: Capable of thoroughly mixing shotcrete materials in
sufficient quantities to maintain continuous placement.

B. Wet-Mix Delivery Equipment: Capable of discharging
aggregate-cement-water mixture accurately, uniformly, and continuously.

C. Dry-Mix Delivery Equipment: Capable of discharging aggregate-cement
mixture into delivery hose under close control and maintaining
continuous stream of uniformly mixed materials at required velocity to
discharge nozzle. Equip discharge nozzle with manually operated
water-injection system for directing even distribution of water to
aggregate-cement mixture.

2.3 MIXES

A. Shotcrete: The basic mix shall contain 7 sacks of portland cement to
each yd^3^ of sand.

B. Slurry Plaster: Shall consist of 3 parts sand to 1 part portland
cement.

C. Moisture Content: The aggregate shall be such that, when mixed with
cement, the mixture shall flow at a uniform rate through the delivery
hose. Materials shall not be allowed to segregate or excess free water
to collect on the surface. The optimum moisture content will depend upon
the equipment being used, but will generally be between 3 percent and 6
percent by weight.

D. Compressive Strength: Shall be 2,500 psi at 7 days and 4,000 psi at
28 days.

[PART 3: EXECUTION]{.underline}

3.1 PREPARATION

A. General: Preparation work shall be according to ACI 506.2, except as
noted.

B. Surface Preparation

1\. Surfaces to receive shotcrete shall be prepared by removing
vegetation, loose soil and rock fragments, and grubbing out roots.
Preparation shall be accomplished with equipment and methods which do
not loosen, crack, or shatter surfaces to receive shotcrete. Material
loosened or damaged during surface preparation shall be removed to
provide a base sufficiently stable to receive shotcrete. Sides of
depressions resulting from removal of roots and embedded rock fragments
shall be shaped as required to ensure complete filling with shotcrete.
Surfaces shall then be given a preliminary clean‑up with high pressure
air jets to facilitate inspection by the Contracting Officer. If
additional surface preparation is then needed, the surface again shall
be prepared and cleaned.

2\. Waste from surface preparation shall be placed adjacent to the work
site and removed, and according to the applicable provisions of local,
state, and federal regulations.

3\. Surface to receive shotcrete shall, where practicable, be free of
water when shotcrete is applied. Suitable weep holes, relief pipe, or
other methods of controlling water inflows shall be provided.

4\. Where impracticable to control free water, shotcrete may be applied
to such surfaces provided the shotcrete adheres readily to the surfaces
and prevents the inflow of water through the shotcrete.

5\. The Contractor may provide and use plastic tubes to collect and
drain inflows. The plastic tubes may be left in place and embedded in
shotcrete.

6\. Soil surface shall be kept damp for a minimum of 4 hr prior to the
application of shotcrete.

7\. Remove, by chipping or grinding, material that is loose or unsound,
and radius corners which cause abrupt changes in the surface plane of
concrete, masonry, and rock surfaces. Taper edges of surface cavities.
After obtaining approval of the surface preparation, the surface shall
be wet sandblasted or water blasted to remove contaminants and to
provide a roughened surface. Water blasting equipment shall be capable
of delivering water pressures of 7500 psi. Adjust water pressure based
on surface conditions. Dampen the surface for a minimum of 2 hr
immediately before shotcreting.

C. Embedded Items: Secure accurately and permanently in place before
placing shotcrete. Allow one working day for inspection and approval by
the Contracting Officer of embedded items, including reinforcement
before shotcrete placement. Notify the Contracting Officer 24 hr prior
to the time that the embedded items are prepared for inspection.

D. Forms: Complete formwork and obtain inspection and approval before
placing shotcrete.

1\. Forms shall be structurally sufficient and of such design that
rebound or accumulated loose sand can freely escape or be readily
removed.

2\. Surfaces of forms to be in contact with shotcrete may be coated with
a release agent.

3\. Forms shall keep shotcrete to within \[[ ]{.underline}\] inches of
design dimensions.

E. Shooting Strips: Shall be used at corners, edges and on surfaces
where necessary to obtain true lines and proper thickness.

F. Metal Culverts: Shall be cut off flush with the finished surface of
the shotcrete liner.

1\. Burn-back of galvanized surface \[in excess of 3/8‑inch\] shall be
treated with one coat of zinc-rich paint.

3.2 PLACING REINFORCEMENT

A. General: Reinforcement shall be free of loose flaky rust, mud, oil or
other coatings that will destroy or reduce the bond where shotcrete is
placed.

B. Wire Fabric: Lap splices one full square of mesh and wire securely at
one-foot intervals. Offset laps of adjoining widths to prevent
continuous laps in either direction.

C. Reinforcement Bars: Lap bars \[according to the CRSI Manual of
Standard Practice\] as shown on the drawings.

D. Cover: Wire fabric or bars shall be located \[1‑1/2\] inches below
the surface of the shotcrete\] \[as shown on the drawings\].

E. Bondbeam: Welded wire fabric shall extend into the bond beam, bent
around and wired to itself as shown in the drawings.

F. Anchoring: Support and anchor reinforcing against displacement using
chairs, runners, bolsters, spacers, and hangers, as required.

3.3 MIXING

A. General: Mixing may be accomplished by either a wet mix delivery
process or dry-mix delivery process.

1\. Cement and fine aggregate shall be thoroughly mixed before being
charged into the machine.

2\. The mixer shall be cleaned at regular intervals (at least once every
8‑hour shift) and thoroughly enough to remove adherent material from the
mixing valves and drum.

3\. The equipment shall be kept clean and in an operating condition
ready for use during the work.

4\. The Contractor shall ensure that adequate air and water is supplied
to the machine as specified by the equipment manufacturer.

5\. The equipment shall be such that rapid‑hardening admixture, if used,
can be added and mixed satisfactorily at the gun.

6\. The mixing time shall be contingent on the equipment as recommended
by the manufacturer.

B. Wet Mix Delivery Process: After completion of mixing, the mix shall
be metered into a delivery hose and conveyed by compressed air to the
nozzle.

C. Dry Mix Delivery Process

1\. Moisture content of the fine aggregate shall be carefully controlled
to prevent clumping of the dry mix and help insure that the mix will
flow through the delivery hose at a uniform rate without lumps of
concentrated shotcrete.

2\. The equipment shall be capable of delivering the premixed materials
accurately, uniformly and continuously through the delivery hose at a
velocity of at least 500 fps.

3\. The discharge nozzle shall be equipped with a manually operated
water injection system (water ring) capable of evenly distributing water
through the delivered mixture. The water nozzle shall be capable of
ready adjustment.

4\. Aggregate, cement and dry admixture shall be dry mixed, with the
water and accelerator agent being introduced at the gun.

3.4 PLACING SHOTCRETE

A. General

1\. Acceptable shotcrete shall be dense and uniform and without
discernable weakness of bond between layers.

2\. Shotcrete equipment shall be arranged so that the nozzleman can use
air and water in combinations for preparing surfaces to receive
shotcrete.

3\. Surface shall be cleaned with high pressure air jets immediately
prior to applying shotcrete.

4\. Apply shotcrete according to ACI 506.2.

B. Nozzle

1\. Velocity must be maintained at a uniform rate determined for a given
job condition to produce minimum rebound.

2\. Position shall be held in a position and distance so that the stream
of flowing material shall impinge at approximately right angles to the
surface being covered to produce a spreading effect over a small area.

C. Placement

1\. The minimum thickness of shotcrete placed shall be \[[
]{.underline}\] inches.

2\. Shotcrete shall be built up in a series of layers, not exceeding
\[2-inches\] (50 mm) thick, using a slightly wetter mix for the first
coat of each layer followed by one or more drier coats applied while the
first layer is still plastic. Do not allow cold joints or laminations to
develop.

3\. Apply protective coverings and protect adjacent surfaces against
deposit of rebound, overspray, impact from nozzle stream, or any other
damage.

4\. Nails, pins, or other gauging devices shall be installed to
demonstrate that the required minimum thickness of shotcrete has been
placed.

5\. The nozzleman shall shoot shotcrete with a uniform consistency and
at the wettest consistency short of the sag point. Do not permit
shotcrete to sag, slough, or dislodge.

6\. If the shotcrete mix flow becomes intermittent the nozzleman shall
divert the stream away from parts of the area being or to be shotcreted
until the flow becomes consistent.

7\. The mix stream shall be angled as required to ensure complete
encasement of plastic tubes installed to collect and drain water
inflows.

8\. Tubes may be capped temporarily to prevent plugging when the
shotcrete is applied to the immediate area.

D. Placement Around Reinforcement:

1\. Hold the nozzle at such distance and angle to place material behind
reinforcement before material is allowed to accumulate on its face.

2\. Shotcrete to embed wire fabric will not be considered complete until
the shotcrete layer has been built up to the thickness specified and
until the wire mesh and supporting bolts are completely covered with
shotcrete to a depth of at least \[[ ]{.underline}\] inches.

E. Rebound Sand

1\. Rebound or accumulated loose sand shall be removed from the surface
to be covered prior to placing of the original or succeeding layers of
shotcrete.

2\. A separate air hose and blowpipe shall be used to remove dust and
rebound during shotcrete operations.

3\. Rebound material shall not be re‑used.

F. Joints

1\. Shotcrete at the end of a days work or similar stopping periods
shall be sloped off to a 45-degree angle.

2\. Before placing an adjacent section, sloped portions shall be
thoroughly cleaned and wetted.

G. Bond

1\. Surfaces to which shotcrete or slurry is to be bonded shall be
thoroughly cleaned of dirt, grease, organic matter and loose particles.

2\. Absorptive surfaces shall be wetted before the application of
shotcrete.

H. Bond Beam: A \[6-inch x 6‑inch\] shotcrete bond beam shall be
constructed around the perimeter of the lining \[as shown on the
drawings\].

I. Slurry Plaster

1\. The entire shotcrete surface shall be coated with a slurry plaster
consisting of a sand‑cement mix specified in the Mixes article in
Part 2.

2\. The minimum thickness shall be 1/8-inch.

3\. Slurry plaster shall not be applied prior to the initial set of the
shotcrete.

3.5 FIELD QUALITY CONTROL

A. Testing: \[The Government will perform the required testing,
recording, and distributing of the results.\] \[The Government will make
arrangements for a certified independent testing laboratory to perform
the required testing, recording, and distributing of the results.\]
\[The Contractor shall perform the required testing, recording, and
distributing of the results.\] The Contractor shall furnish necessary
equipment, labor, and materials to conduct the testing. Testing shall be
conducted in the presence of the Contracting Officer.\] \[The Contractor
shall make arrangements for a certified independent testing laboratory,
according to the requirements of Section 01458 - Testing Laboratory
Services, to perform the required testing, recording, and distributing
of the results.\] The Contractor shall pay for extra cylinders and tests
required for cold weather or form stripping control purposes. The
Contractor shall also pay for additional tests during pours that are
required due to apparent changes in the concrete mix or in the concrete
placing operation.

B. Air Content: ASTM C 173, volumetric method, or ASTM C 231, pressure
method; 1 test for each test panel made for each mix of air-entrained,
wet-mix shotcrete measured before pumping.

C. Test Panels: Make a test panel, reinforced as in the structure, for
each shotcrete mix and for each workday or for every 50 cu. yd. (38
cu.m) of shotcrete placed, whichever is less. Produce test panels with
dimensions of 24 by 24 inches (600 by 600 mm) minimum and of average
thickness of shotcrete, but not less that 3-1/2 inches (90 mm). Test
panel shall be kept moist and at 70 F ± 10 F (21 C ± 5.5 C) until moved
to test laboratory. From each test panel, the testing agency shall
obtain six test specimens: one set of three specimens unreinforced and
one set of three specimens reinforced.

1\. Test each set of unreinforced specimens for compressive strength
according to ASTM C 1140 and construction testing requirements in ACI
506.2.

2\. Visually inspect each set of reinforced shotcrete cores taken from
test panels and determine mean core grades according to ACI 506.2

D. Shotcrete Quality: Strength of shotcrete will be considered
satisfactory when mean compressive strength of each set of 3
unreinforced cores equals or exceeds 85 percent of specified compressive
strength, with no individual core less than 75 percent of specified
compressive strength.

E. Deficiencies: The Contracting Officer will indicate areas of rejected
shotcrete.

3.6 FORM REMOVAL

A. General: Forms shall remain in place for time recommended according
to ACI 347, Article 2.7.

1\. Remove forms with care to avoid damage to shotcrete.

2\. Remove fins and protrusions flush to surface.

3\. Remove loose material.

3.7 DEFICIENCY CORRECTION

A. Inspection: Before a succeeding layer of shotcrete is placed, the
preceding layer shall be checked for drumminess indicating voids or lack
of adhesion to the satisfaction of the Contracting Officer.

B. Repairs: The Contractor shall repair drummy, sandy, cracked or
spalled areas and other areas where the shotcrete is faulty, by removing
the shotcrete to a sound area, carrying out surface preparation as
specified in article 3.01 and reshooting that area according to these
specifications or by adding depth as approved by the Contracting
Officer.

3.8 FINISHING

A. Normal Finish: Unless otherwise specified, provide natural gun finish
throughout.

B. Troweling: Avoid troweling of thin sections of shotcrete unless both
troweling and commencement of moisture curing take place within a
relatively short period after placement of shotcrete. Do not, in any
case, scrape or cut to remove high spots until the shotcrete has become
stiff enough to withstand pull of the cutting devices.

3.9 CURING

A. Immediately after finishing, cure shotcrete continuously by either
maintaining in a moist condition or by covering with a membrane-forming
compound or impervious sheet covering. Cure for the periods indicated
below:

1\. Normal portland cement: 7 days.

2\. High early‑strength portland cement: 3 days.

3.10 CLEANING

A. Shotcrete: Remove prior to its final set from surfaces not intended
to be shotcreted and from reinforcing wire to be embedded in a future
pour.

B. Forms and Materials: Remove and leave project site clear of debris.

3.11 PROTECTION

A. Requirements: Shotcrete shall be applied, protected, and cured to
prevent its temperature falling below 50 degrees F, or a loss of
moisture from the surface for the periods indicated below:

[PART 4: MEASUREMENT AND PAYMENT]{.underline}

4.1 METHOD OF MEASUREMENT

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WHEN A "LUMP SUM" CONTRACT IS USED, DELETE THE TITLE PART 4: MEASUREMENT
AND PAYMENT, AND BOTH ARTICLES FROM THIS SECTION. MEASUREMENT AND
PAYMENT WILL BE ADDRESSED IN PART 4 OF SECTION 01009 - GENERAL
INFORMATION AND REQUIREMENTS OR SECTION 01010- SUMMARY OF WORK.

WHEN NOT A "LUMP SUM" CONTRACT, SELECT APPLICABLE PHRASES; USE THE "NO
MEASUREMENT" PHRASE WHEN NONE OF THE PAY ITEMS IN THIS SECTION ARE
INCLUDED IN THE BID SCHEDULE.

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A. Units: The work described in this section will \[not be measured for
payment\]. \[be measured for and paid for\] \[on a lump-sum basis\].

4.2 BASIS OF PAYMENT

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WHEN NOT A "LUMP SUM" CONTRACT, SELECT APPLICABLE, SELECT APPLICABLE
PHRASES; USE THE "NO DIRECT PAYMENT" PHRASE WHEN NONE OF THE PAY ITEMS
IN THE SPECIFICATION ARE INCLUDED IN THE BID SCHEDULE.

WHEN NOT A "LUMP SUM" CONTRACT AND PAYMENT IS TO BE MADE UNDER THIS
SECTION, SELECT APPLICABLE PAY ITEMS. DO NOT CHANGE PAY ITEM NUMBER.
WHEN MORE THAN ONE DIAMETER OR GAUGE IS SPECIFIED FOR ANY PAY ITEM,
LETTER SUFFIXES WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER.
WHEN GOVERNMENT-FURNISHED PROPERTY IS SPECIFIED FOR PAY ITEMS, THE
LETTER SUFFIX GF WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER.

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A. Payment: \[No direct payment for the work described under this
section will be made. Consideration for this item shall be included in
the bid price for other items of the Contract\]. \[Prices and payment
will be full compensation for the work described in this section.
Payment will be made under:\]

[Pay Item]{.underline} [Pay Unit]{.underline}

03361(01) Shotcrete Lump Sum

03361(02) Shotcrete Cubic Yard

03361(10) Slurry Plaster Square Foot

03361(20) Reinforcing Wire Square Foot

END OF SECTION