Precast Plant Quality System Documentation Set

© Copyright 2007 by Sam Lines
PRECAST PLANT QUALITY SYSTEM
DOCUMENTATION SET
by
Sam J. Lines
This document is an outline structure for developing a quality system in a
precast concrete plant that addresses the minimum standards
recognized in the industry. The outline is constructed using an outline of
12 separate volumes, each representing a unique set of documentation
necessary for the verification of conformance. The set contains a written
quality control manual, volume 1 of the set, which is intended to be
modified to address specific procedures of each individual plant. The
documentation set should be used as a blueprint in establishing a
documented, plant specific, quality assurance system in a precast
concrete plant. This product does not guarantee, either written or
implied, the acceptance by any industry plant certification program.

Using This Document
This document contains an outline with 12 main headings. Each heading is a volume. Each
volume represents a set of documentation that is related to one another. Volume 1 is the quality
control manual. A basic quality control manual has been written which can be used and
modified by the user to add plant specific details. The remaining 11 volumes will be filled with
documentation that either currently exists, or should exist in a precast concrete plant to show
compliance to a quality system.
Each volume of this documented system is to be contained in (1) three ring binder. The edge of
the binder will be labeled with volume heading. The contents can be then separated into
subsets using divider sheets. Different size binders will be needed in some instances to hold
the volume of documents and records that may exist. This will vary from plant to plant. In most
instances, a 1” binder will meet or exceed the volume requirements.
The purpose for using 12 binders is so that they can be kept together in a library where anyone
can see them. This accomplishes two goals. First of all, by being accessible, anyone can refer
to the documentation when necessary. It also makes it easy to access when an auditor shows
up to examine the system for compliance to a standard. And second, displaying the quality
control system in this manner demonstrates to employees and visitors that the quality system is
important and supported by management.
A basic way of viewing a documented quality assurance system is to think say it, do it, and
prove it. You need to say what you do, in other words, document the process. Then do what
you say you are doing by following the written procedures. And finally you must prove it. The
proof is in the records generated by the system to show evidence of continuous compliance. By
following this format, developing a documented quality system can be done in less time, with
less resources, allowing the precaster to do what they do best; make quality precast products.

1. Precast Concrete Plant Quality Control Manual
a. Management Quality Policy
b. Company QC Organizational Chart
c. Description of responsibilities for QC personnel
d. Description of training requirements
i. QC personnel
ii. Production staff
iii. Forklift operators
iv. Batch plant operators
v. Drivers
e. Housekeeping Plan
f. Production Procedures
i. Pre pour inspection procedures
ii. Post pour inspection procedures
iii. Final inspection procedures
iv. Curing procedures
v. Product repair procedures
vi. Nonconformance procedure
vii. Mix qualification procedure
viii. Raw material testing procedures
ix. Equipment calibration procedures
x. Product performance test procedures
xi. Hot weather concreting procedure
xii. Cold weather concreting procedure
g. Minimum strength requirements
i. Stripping
ii. Shipping
h. Product tolerances
i. Quality control records – Sample of forms and documentation
2. Training Documentation Manual
a. Quality Personnel
i. Applicable ACI certifications
ii. Concrete fundamentals and quality education
b. Production Personnel
i. Specific safety training
ii. Vibrator training
iii. Batch plant operator training
c. QC Meetings
d. Safety Toolbox Talks
3. Purchased Material Compliance Records
a. Aggregate reports
b. Cement / supplementary cementitious materials mill certificates
c. Reinforcing mill certificates
d. Certificates of compliance
i. Admixtures
ii. Sealants & connectors
iii. Water

4. Plant Equipment Records
a. Forming (identification, annual inspection)
b. Slings and lifting devices
c. Batching tolerances
d. Batch plant inspection criteria
e. Calibration records
f. Concrete mix formulas
5. Pre pour Inspection Log
6. Post Pour Inspection Log
7. Quality Inspection and Testing Log
a. Daily checks log
b. Concrete testing records
c. Curing records
8. Final Inspection Log
9. Concrete Batch Reports
10. Product Specific Records
a. Proof of conformance
b. Stormwater concrete pipe requirements (when applicable)
c. Round manhole component requirements (when applicable)
d. Box culvert requirements (when applicable)
e. Septic tank requirements (when applicable)
11. Standards Manual for Test Methods and Specifications
a. ASTM
b. AASHTO
c. ANSI
d. ISO
12. Plant Safety Manual
a. Management commitment and employee involvement
b. Hazardous communications program
c. Confined space program
d. Hearing conservation program
e. Powered industrial truck program
f. Control of hazardous energy program (lockout / tagout)
g. Emergency response program
h. Employee safety training program

PRECEAST
CONCRETE PLANT
QUALITY CONTROL MANUAL
VOLUME 1
Issued <Month Date, Year>

Management Quality Policy
<Company Name> is committed to providing quality products to our customers. To meet
this objective, we will implement and follow the procedures detailed by this quality
system manual.
Our quality objectives are:
• Customer satisfaction
• On-time delivery
• Zero defects
• Continuous improvement
The success of this quality management system is dependent on the support of top
management and employee involvement. The president of <Company Name>, by
placing his signature below, is demonstrating his support. Employees at all levels within
the organization are charged with the responsibility of following this quality management
system.
_________________________
<Name of Company President>
Issue Date: <Month Date, Year> Volume 1: QUALITY CONTROL MANUAL
Approved by: ___________________________________ Page 2 of 21

Company QC Organizational Chart
Designation of Responsibility for QC Personnel
President
• Has the ultimate responsibility for the Quality Management System
• Responsible for dedicating resources to the quality department
Manufacturing Manager
• Responsible for following the production procedures
Foremen
• Responsible for verifying product requirements in process
Human Resources Manager
• Responsible for employee training
Quality Manager
• Responsible for the management of the Quality Management System
Inspector
• Responsible for in process and final inspections and testing
President
Sales Manufacturing Controller HumanResources Quality
InspectionForemen

Description of Training Requirements
Quality Control Manager
• ACI Field Testing Technician – Grade 1
• ACI Compression Testing Technician
• ACI Aggregates Testing Technician
• Concrete Production and Quality Training
o NPCA: Production and Quality School; and/or
o PCA: Concrete Principles and Practices; and/or
o PCI: Level II Certification
Quality Control Inspectors
• ACI Field Testing Technician – Grade 1
Production Foremen
o PCA: Concrete Principles and Practices
• OSHA 10-hour Course
Forklift Operators
• Powered Industrial Truck Training and Certification
Batch Plant Operator
o PCA: Concrete Principles and Practices

ACI is the trademark for the American Concrete Institute
NPCA is the trademark for the National Precast Concrete Association
PCA is the trademark for the Portland Cement Association
PCI is the trademark of the Precast/Prestressed Concrete Institute

Housekeeping Plan
Safety is a priority. Good housekeeping is critical to eliminating slips, trips and falls.
Each employee is responsible for picking up trash and debris and placing it in the proper
container throughout the day. Any spill will be cleaned promptly. Tools and equipment
will be put away when not in use. The use of extension cords and hoses will be kept to a
minimum, and they will be stored when not in use.
The quality manager will inspect the plant daily to make sure this policy is being
followed. Acknowledgement that the housekeeping inspection is completed will be
documented on the Daily Plant Inspection Form.

Production Procedures
A. Pre-Pour Inspection Procedure
A pre-pour inspection will be performed on each form prior to casting. As a
minimum, the following items will be checked:
o Form dimensions
o Form tightness
o Form cleanliness
o Form release agent application
o Positioning, size, and securing of reinforcement
o Placement, securing, and location of embedded items
o Placement, securing, and location of blockouts
The record of the inspection will be made on the pre-pour inspection form for the
date the product is to be cast. To identify that the pre-pour inspection is
complete, and that the form is ready for casting, we will <explain the method
used to identify that the form is ready>. Forms will not be cast until they have
been inspected and approved.
B. Post Pour Inspection Procedure
A post pour inspection of each product will be performed. As a minimum, the
following items will be included in the inspection:
o The evidence of any damage such as spalls or cracks
o Excessive bugholes or honeycombing
o The dimensions of the product and cast in items are within tolerance
o Exposed reinforcing
o Assembly of any components to the casting
o Permanent identification of the product as required
The results of the inspection will be recorded on a post pour inspection form for
the date the product was cast. Any defects noted are to be repaired and re-
inspected before the product passes inspection. Any product which cannot be
repaired, or does not conform to the required specifications will be permanently
identified as nonconforming. All castings that are approved will be designated
with a distinct mark that identifies the casting as accepted.
C. Final Inspection Procedure
Before shipment, all products will be inspected to assure that the product
conforms to requirements and is properly identified.
Shipments containing more than 5 units of the same product will have 1 product
for every 10 shipped inspected. If a defect is found, 2 additional products will be
inspected. If a defect is found in either of those products, all remaining product
will be inspected.

Any defects noted are to be repaired and re-inspected before the product passes
inspection. Any product which cannot be repaired, or does not conform to the
required specifications will be permanently identified as nonconforming. Only
products which pass inspection will be shipped unless the purchaser is notified
and agrees to accept the product with the nonconformance.
The final inspection, including any nonconformances or customer acceptance of
a defect, will be recorded on the final inspection form.
D. Curing Procedures Procedure
The typical curing process for all products is by non-mechanical means.
Castings will be protected from moisture loss after pouring and prior to stripping.
For concrete with a temperature above 55° F, the form will be covered with a
plastic sheet of no less than 6 mils thick. Alternative curing methods such as a
curing membrane may be used when applied at a rate not exceeding 200 SF per
gallon.
Heat Curing (only when used) – Accelerated curing by heat or steam may be
performed. When it is done, concrete will not be subjected to hot air or steam
until after a minimum of 30 minutes or after the initial set of the concrete. The
casting will be protected against moisture loss by covering or the addition of
steam when using an accelerated method. The concrete curing temperature will
be monitored and will not exceed 150° F. The rise in temperature will be limited
to a maximum of 40° per hour.
Records for accelerated curing processes, if used, will be kept and include the
following information:
o Time of initial set (ASTM C403)
o Ambient curing temperature measured a minimum of once per week
o Inspection of cured products for evidence of plastic shrinkage cracking
and documentation of any damage found
E. Product Repair Procedure
A qualified person will determine whether the defect is minor or major in nature.
If the defect will not impair the function or expected life of the product, then the
defect will be considered minor, all other defects will be considered major.
Defects will be repaired according to the following process:
Minor Defects – To repair a honeycomb area or spalling, any loose debris will be
removed and the area surrounding will be cut away. The mating surface will be
dampened. <enter the type of repair mortar used> will be used to patch the area.
The material will be used in accordance with the manufacturers recommended
procedures.
Major Defects – Major defects that affect the function or life of the product will not
be repaired. The casting will be scrapped or re-classified if it meets another
specification. Products with defects that are considered major will be clearly
designated.
All defects will be documented on the inspection records. Any repairs made will
be re-inspected before the casting is approved. The re-classification or rejection
of any product with a major defect will be documented.

F. Mix Qualification Procedure
Standard slump concrete will be proportioned by a volumetric method by a
qualified individual. Each recipe will be proportioned, documented and labeled
for identification. The nominal compressive strength will be designed to exceed
the required minimum compressive strength by either one standard deviation
(when a minimum of 20 test samples are available) or 1,200 psi. Changes in the
mix design will be documented.
When Self-Consolidating Concrete (SCC) is used, the qualification process will
involve the SCC admixture manufacture. SCC will be tested daily at the
beginning of the pouring operation. A specified range for the spread of the SCC
will be determined for each design used. The mix will be considered to be within
specification when two consecutive tests for spread fall within the specified
range.
The air content, maximum water-to-cement ratio and minimum compressive
strength will be as specified by the customer’s requirements.
G. Raw Material Testing Procedure
All raw materials will be tested by the supplier, and shipped with a certificate of
conformance or mill certificate.
H. Equipment Calibration Procedure
A listing of all equipment used to measure the materials used in making or testing
the concrete will be listed and calibrated at least annually. The list will include,
but not be limited to, the following:
o Weight Scales
o Admixture dosing equipment / meters
o Moisture sensing equipment
o Air entrainment meter
o Compressive test machine
o Thermometers
o Rule or tape measure
I. Product Performance Test Procedure
Proof of Conformance to Specifications – When required, conformance to
specification will be by design calculations or by performance testing.
Performance testing will be verified by an independent expert or by a licensed
professional engineer.
o Stormwater Concrete Pipe – The following inspections will be performed
on the applicable stormwater concrete pipe produced.
 Reinforcing Steel – A minimum of three cages from each
production day, but not less than 3%, will be inspected for
compliance to requirements. The cage will be verified with the
design, the type of reinforcing used will be verified, and the

connection method will be checked. These inspections will be
documented and kept on file for a minimum of three years.
 Three-edge Bearing Testing – When conformance is required, this
test will be conducted per ASTM C497. Unless a greater
frequency is specified, the three-edge bearing test will be
conducted on each size pipe a minimum of once per year, or as
shown on the following chart, which ever is greater:
Pipe size / Diameter (inches) Test Frequency
12 through 15 1 in 800
66 and over As specified
The results from this testing will be documented and maintained at
the plant for a minimum of three years.
 Absorption testing – Absorption testing will be conducted per
ASTM C497 a minimum of once per year on the mix design with
the lowest amount of cementitious material. The results from this
testing will be documented and maintained at the plant for a
minimum of three years.
 Dimensional Checks – The dimensions of pipe will be checked
periodically to verify conformance to specification. A minimum
frequency of three pipes per day, or 3% of production per day will
be sampled. The results from this inspection will be documented
and maintained at the plant for a minimum of three years.
 Joint Design and Testing – Joints will be designed and verified per
ASTM C443, ASTM C990, or as required by the customer’s
specification. Leakage testing by either hydrostatic or vacuum
testing will be conducted on the gasketed connections annually, or
when the joint or gasket material changes. The results from this
o Round Manholes – The following inspections will be performed on the
applicable round manholes produced:
 Reinforcing Steel – A minimum of three cages from each
production day, but not less than 3%, will be inspected for
compliance to requirements. The cage will be verified with the
design, the type of reinforcing used will be verified, and the
connection method will be checked. These inspections will be
documented and kept on file for a minimum of three years.
 Flat Slab Tops – Flat slab tops will be verified by design
calculations or by proof testing. A licensed professional engineer
or an independent expert will verify the results of proof testing.
The design will conform to ASTM C478.

 Step Testing – A test of the steps will be conducted a minimum of
once per year in accordance with the requirements of ASTM
C497. The testing will meet the requirements of ASTM C478.
 Dimensional Checks – The dimensions of pipe will be checked
periodically to verify conformance to specification. A minimum
frequency of three pipes per day, or 3% of production per day will
be sampled. The results from this inspection will be documented
and maintained at the plant for a minimum of three years.
 Sanitary Manhole Vacuum Testing – When required, vacuum
testing will be performed according to ASTM C1244. The results
from this inspection will be documented and maintained at the
plant for a minimum of three years.
o Box Culvert – The following inspections will be performed on applicable
box culverts produced:
 Pre-pour Inspection – Critical form dimensions, including the top,
bottom, and wall thicknesses will be included in the pre-pour
inspections. A minimum of one box culvert produced in each form
per day will be verified. The cage will be verified with the design,
the type of reinforcing used will be verified, and the connection
method will be checked. These inspections will be documented
and kept on file for a minimum of three years.
o Septic Tanks - The following inspections will be performed on applicable
septic tanks produced:

 Structural Proof of Design – Proof of design will be performed by
either calculations or by proof testing. Design calculation will be
stamped by a licensed professional engineer. Performance
testing will be verified by an independent expert or by a licensed
professional engineer.
 Watertightness Testing – Septic tanks will be verified for water
tightness according to the applicable section of ASTM C1227 or
the requirements of local authority with jurisdiction, whichever is
more stringent. A minimum of one septic tank produced from
each form will be tested at least once per year unless a greater
frequency is required by the customer. The results from this
J. Hot Weather Concreting Procedure
It is preferred that the fresh plastic concrete temperature be no greater than 90°
F. When the fresh temperature of the concrete reaches 87° F, the batch plant
operator will be notified. The concrete temperature will then be monitored for
each batch by the batch plant operator.
Also, if the fresh temperature reaches 87° F, the aggregate stockpiles will be
saturated with water 15 minutes ever 1 hour between 6 am and 6 pm.
If the fresh concrete temperature reaches 90° F, the batch plant operator will take
additional steps to cool the concrete. Ice will be substituted in equal volume for
water. The ice will be added into the mixer and the mix water will be reduced
accordingly. The batch number and the amount of ice added will be recorded.
Ice can be added to replace no more than 75% of the mix water.
All ice must be completely dissolved before mixing is complete.
If the addition of ice and increase in sprinkling aggregates does not reduce the
fresh mix temperature to below 90° F, then concrete production will be
discontinued.
K. Cold Weather Concreting Procedure
It is preferred that the fresh plastic concrete temperature be no less than 50F.
When the fresh temperature of the concrete reaches 55° F, the batch plant
operator will be notified. The concrete temperature will then be monitored for
each batch by the batch plant operator.
If the fresh concrete temperature falls below 50° F, the concrete production will
be discontinued.
Since a significant amount of aggregate can be stored indoors, the aggregate
temperature will increase in storage. Therefore, after additional storage time,
concrete production may be resumed once the combined temperature of the
aggregates and cement exceeds 40° F.

Minimum Strength Requirements
A. Stripping Strength
The plant will need to provide the requirements for minimum strip strength for the
products produced. The minimum strengths can be the same, or differ for the
type of product, or lifting equipment.
B. Shipping Strength
The plant will need to document the required minimum shipping strength for the
products produced. The minimum strengths can be the same, or differ for the
type of product, or lifting equipment. Applicable standards should be consulted
before determining this requirement.
C. 28 Day Strength
The plant will need to document the required minimum 28 day strength for the
products produced. This can be the same or different for each type of product.

Product Tolerances
Bugholes, chips, voids, and honeycombing 3/8" maximum depth
Maximum size joint gap 3/8”
Length, width, height, and diameter (inside):
0 to 5 ft +/- 1/4”
5 to 10 ft +/- 3/8”
10 and over +/- 1/2"
Squareness (determined by inside diagonal dims.):
0 to 10 ft 1/2”
10 and over 3/4"
Wall thickness +3/8”, -1/8”
Top and bottom slab thickness +1/2”, -1/8”
Standard Weight Concrete:
Minimum cement content 564 lbs.
Maximum w/cm ratio .45
Slump w/ water reducing admixture 4 1/2” min.,6 1/2” max.
Spread (SCC only) 22” to 28”
Air content 5%, + 2%, - 1%

Quality Control Records
• Prepour Inspection Form
• Post Pour Inspection Form
• Final Inspection Form
• Daily Plant Inspection Form
• Concrete Testing Form
• Concrete Mix Design Form
• Vacuum Testing Form

Prepour Inspection Form
Product or Job: ____________________________________
Inspection Date:
Mon Tue Wed Thu Fri Sat
Form Condition
Form Cleanliness
Form Joints
Release Agent / Retarder
Design Length (ft/in)
Set Up Length (ft/in)
Design Width (ft/in)
Set Up Width (ft/in)
Design Depth (ft/in)
Set Up Depth (ft/in)
Blockouts
Squareness
End and Edge Details
Reinforcing Steel
Reinforcing Size
Reinforcing Spacing
Reinforcing Rustification
Cast-in Items
Lifting Devices
Comments:__________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
Inspector: ___________________________________________ Date: __________________
QC Supervisor: _______________________________________ Date: __________________

Post Pour Inspection Form
Product or Job: ____________________________________
Casting Date:
Inspection Date:
Mon Tue Wed Thu Fri Sat
Stripping Strength (psi)
Casting Finish
Coating Finish (if applicable)
Cast Length (ft/in)
Cast Width (ft/in)
Cast Depth (ft/in)
Cracks or Spalls
Squareness
Honeycombing / Bugholes
Bowing / Camber
Exposed reinforcement
Embedment Item Locations
Openings and Blockouts
Lifting Devices
Markings
Comments:__________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
Inspector: ___________________________________________ Date: __________________

Final Inspection Form
Final Inspection Date: ____________________________________
Product or Job: ____________________________________
Number of Units: ____________________________________
Casting / Unit Type: ____________________________________
Casting Pour Date: ____________________________________
____ Post Pour Inspection Compete? Yes or No
____ Check product and compare it to the order
____ Check product markings for correct information
____ Check to make sure manufacture name or trademark is visible
____ Check for cracks, spalls, or damage
____ Check installed components
____ Check accessories and compare to the order
____ Make sure concrete strength exceeds minimum requirement for shipment
Inspector: ___________________________________________ Date: __________________

Daily Plant Inspection Form
Monday  Check here if Holiday or Plant is Not in Operation
Date: __________ Testing Performed By: _________________________________Slump: __________
Temperature: __________ Air Content: __________Yards of concrete produced on this day: _________
Housekeeping Inspection Performed By: _________________________________
Storage Area Inspection Performed By: _________________________________
Tuesday  Check here if Holiday or Plant is Not in Operation
Wednesday  Check here if Holiday or Plant is Not in Operation
Thursday  Check here if Holiday or Plant is Not in Operation
Friday  Check here if Holiday or Plant is Not in Operation
Saturday  Check here if Holiday or Plant is Not in Operation
Weekly Tests:
Unit Weight Tests: __________ __________ __________ __________
Cylinders Made On: __________ __________ __________ __________

Concrete Testing Form
Date of Pour: ________________
Mix Design/Formula Number: ________________
Batch Number: ________________
Specimen ID Number: ________________
Mix Proportions:
Cement: ________________
Fly Ash - Class ____ : ________________
Slag / Other Pozzolans: ________________
Course Aggregate: ________________
Fine Aggregate: ________________
Water: ________________
Air Entraining Admixture: ________________
Water Reducing Admixture: ________________
Set Accelerating Admixture: ________________
Other: ________________: ________________
Test Results:
Slump/Spread: ________ VSI: ________ Temperature: ________
Unit Weight: ________ Air Content: ________ Yield: ________
Stripping Cylinder Compressive Strength: ___________ psi @ _____ days.
7 Day Cylinder Compressive Strength: ____________ psi
Average 7 day Compressive Strength: ____________ psi
Average 28 day Compressive Strength: ____________ psi

Concrete Mix Design Form
Formula Number: ______________ Plant: _______________
Formula Name: ____________________________________________________________
Design Compressive Strength: _________________ PSI @ 28 days
Water-to-cement Ratio: __________
Design Air Content: __________ %
Design Unit Weight, Batched: ___________ PCF
Coarse Aggregate Ratio: __________
Cement (type ___ ): ________________ LBS. from __________________________________
Fly Ash: ________________ LBS. (Fly Ash % = _________ ) from ______________________
Water: _________________ LBS. ______________ GAL.
Coarse Aggregate: _____________ LBS. (SSD) (Type: ______________________________ )
Sand: _______________ LBS. (SSD) (Type: _____________________________________ )
Air Entrainment Admixture: ___________ OZ. (Name: _______________________________ )
Water Reducing Admixture: __________ OZ (Name: ________________________________ )
Set Accelerating Admixture: __________ OZ (Name: ________________________________ )
Notes: ____________________________________________________________________
Mix Design Approval:
_________________________________________________________
Production Manager Date
_________________________________________________________
Quality Manager Date

Vacuum Testing Form
Date Tested: __________________
Location of Test: __________________
Equipment/Product Tested: __________________
Product Serial # __________________
____________________________________________________________________________
TEST SPECIFICATIONS
Test Requested By: _________________________________
Test Performed By: _________________________________
Test Witnessed By: _________________________________
Description of Test: _________________________________
Product Tested To: _________________________________
Additional Comments: ______________________________________________
______________________________________________
Hg reading: Start: _________” End: _________” Time: _____ Min.
(Allow the tank to stabilize before beginning the timed test. Refer to the latest edition of
ASTM C 1227 for requirements. For safety of testing personnel, do not exceed 7” Hg.
A calibrated gauge with a scale of 0 to -10 inches of mercury (maximum) with a ±1%
accuracy should be used.)
Pass _________ Fail __________
Signature: _______________________________________________

About the author
Sam Lines has over 15 years of experience in the precast concrete industry. He has held positions in
Engineering, Quality Assurance, Health and Safety, and Sales. While employed at a large precast
concrete plant in Indiana, Sam was instrumental in leading a multi-facility operation to ISO 9001
Certification, as well as NPCA Plant Certification and certification by four State Departments of
Transportation.
Sam studied Industrial Engineering at Purdue University and holds a Bachelor of Science Degree in
Management from Indiana Wesleyan University. He is an active member of the American Society of
Testing and Materials (ASTM), and the National Precast Concrete Association (NPCA) where he
participates in several committees. He is also a member of the American Concrete Institute (ACI), and
the American Society for Quality (ASQ). Sam is employed by Concrete Sealants, Inc. in Tipp City, Ohio.
Concrete Sealants manufactures and distributes products which are widely used in the precast concrete
industry.

Precast Plant Quality System Documentation Set

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