| Materials
Management System |
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Table
of Contents
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document is a single work, intended to be read in its entirety.
Introduction
Historical System
Our Materials Management System
Laboratory Testing
Materials Approval and Shipment
Project Level Materials Documentation
Project Level Materials Record
Project/Item Certification
Report on
Materials Tested
Final
Comments
Introduction
The West Virginia Department of Transportation has
developed a Materials Tracking System which is used to keep track of
materials being used in highway projects. This system is based upon a
computerized database files of all materials tested in the central or
field laboratories including tests at project sites or samples taken
from the project, or observed tests at a manufacturing or production
source.
This database files and
derivations are used for the recording of test data from these
laboratories, tracking and locating test documents and providing
documentation of test status and material acceptance to field personnel.
This file and the results derived from source analysis and material
analysis are used in evaluating the project or construction item for the
preparation of a final letter of materials certification.
The final materials
certification is a requirement of the Federal Highway Administration for
all federal aid projects and is routinely used by West Virginia for most
all projects. The requirements for this certification are included in
FHPM 6 4 2 7. This is performed by Contract Administration
Division using the Materials Management System and Construction Project
Records since August 1998.
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Historical System
Before the scope of what has been possible through the
use of automated systems can be appreciated, a brief history of the
previous system used is in order. A contractor would advise the Division
of Highways of his source of materials and the DOH would arrange
sampling of the material. When testing was finished a paper file was set
up, with an attendant book keeping system, to keep track of where the
material from the tested lot was used. This system required several
audit clerks to maintain the required tracking. When shipments of
material were sent to a project the project would submit documents that
supplied identification of the material and source and would request
test data documentation so that their files would contain the proper
proof of acceptability of the material used. When an item of work
was completed the project would submit a request for an independent
audit and issuance of a final letter of Materials Certification for the
item. Central Materials personnel would review the submittal and verify
that the proper number of tests had been conducted and that all tests
evidenced specification material had been used. If there was a
non-compliance then the audit clerks had to go back to the project for
resolution of the non-compliance before certification could be made.
This, of course, meant that the item could not be paid for until any
non-compliance was properly addressed.
This is a simplified overview,
however those of you who have had to work within a similar system would
know the hours and even months required at times to make sure all of the
paperwork was available and that all material was properly
covered. As any of you that have ever worked on a large
multi-million dollar project know, there are files after files of test
data required to provide proper documentation of the acceptability of
the materials and work using those materials.
As I said, this
is a brief history of how we used to do it before we finally jumped into
electronic data transfer.
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Our Materials Management System
Source Requests for Material Approval (off site
materials)
- Step 1: A contractor
must provide to the DOH a list of all materials to be used and the
source of each material.
- Step 2: There are two
possible types of source; an approved source and an unapproved
source.
- Step 2a: There are
two possible methods of inspection and documentation for an unapproved
source. These are approving of a specific lot quantity from
which the supplier can distribute to several sites or a specific
quantity which is project specific.
When a contractor has need for
preapproved material from a producer or manufacturer the DOH will
contact the source listed on the contractors notice and arrange for
source approval or for the testing of a specific lot of material.
The variability of the material
to be supplied is the determining factor for source approval. Such
approvals may already exist or may be established as a result of the
contractors notice, These approvals generally are for a specific time
period. Of course the lot approval is for a specific lot, said lot
generally being defined by a quantity. If the material being
inspected is a standard construction material the quantity approved may
be more that the individual project requires. The laboratory
number representing this material is called a Master Laboratory Number.
Several projects may obtain shipments from this lot of material.
If the material is unique to a
specific project, or no other project is known to be using this
material, or the source has not developed a satisfactory record of
compliance with the Department the laboratory number will represent the
quantity approved for that shipment only to that specific project.
The laboratory number representing that material is issued on Direct
Report to the specific project.
Sampling of a specific lot is
arranged and, in most instances, these samples are submitted to the DOH
laboratories for tests and approval. A sampling report is submitted with
each sample. This report is essential because it is used to enter into
the automatic data processing system the information necessary to begin
the record needed eventually to provide project level documentation and
to support the final letter of materials certification when the project
or item is completed.
Source approval works similar
to this except that the data used for approval will most times include
manufacturer quality control data and site inspections by our technical
people. A report of this analysis will be initiated much the same as the
sample report is issued for the sampling of a specific lot. These
reports, whether representing the initiation of a lot approval or source
approval, begin the needed record.
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Laboratory Testing
Once a sample, either for lot approval or for source evaluation, is
received by the laboratory for testing it is assigned a laboratory
number for tracking purposes. Basic information from the sample report
is entered into the on-line system. This information includes source
identification, material identification and, if applicable, project
identification. The material is routed through our laboratories to have
the required tests conducted. As each laboratory finishes tests the data
developed are entered directly into the on-line system.
The subsystem used for
recording central laboratory test results is also used by all District
laboratories to record test data from tests conducted in these
laboratories. These systems also are used to record field tests on all
cement concrete, aggregates, and asphalt concrete.
The data accumulated in this
data base would include, for example, portland cement data on the cement
used in concrete for a specific item of construction, aggregate test
data on the aggregates used in concrete for this same item, data on the
admixtures and water used in this same item, and data on the tests
conducted on the concrete produced from these ingredients.
Information from all of these
subsystems is cross-referenced in more detail for tracking purposes and
use in other subsystems. This allows for the tracking of a sample from
the time it was received in the laboratory (any laboratory) until the
time of the need for the final material certification for the project.
With this on-line system any
report can be accessed by using certain key identifiers. An on-line
review of any report can be undertaken with a minimum of effort.
As an example: if a contractor,
producer, manufacturer or DOH employee wants to know the status of tests
on a particular sampling, our people can access the system at their desk
while on the phone and provide an update on status.
Prior to going on-line the reporting of laboratory results required that
laboratory work sheets be forwarded to the laboratory coordinator. This
coordinator submitted these sheets to the computer section for entry and
hard copy or sent them to the QUALITY ASSURANCE SECTION if the data
required some analysis and manipulation prior to submitting to the
computer section for entry and hard copy. Any review required after
completion of testing and reporting required retrieving the reports from
the main file and was, as you can imagine, labor intensive and time
consuming.
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Materials Approval and Shipment
When laboratory tests are completed they are evaluated in accordance
with current specifications. If a lot of material is approved, the
manufacturer or producer is notified.
Several procedures are written
which govern shipping documentation requirements, however they all
require that the manufacturer or producer be responsible for providing
documentation of the shipment of material from either an approved lot or
from an approved source. In all cases the shipping document shall
reference the laboratory number representing the material.
When a shipment is made the
source must provide a copy of a shipping document to accompany the
shipment. When the shipment is from a lot represented by a Master
Laboratory Number a copy must also be provided to the Contract
Administration Division.
When the shipping notice is
received at the finalization group of Contract Administration Division certain identifying information is
entered into the system. This information includes identification of the
source, identification of the destination of the material, material
type, specific lot identification (the number assigned to the lot at the
time of approval) and the quantity of material shipped.
This process allows for a
materials accounting process which could show each shipment and the
accounting of the balance of a specific quantity in a tested lot at any
time. This electronic audit is available at the terminal for review as a
verification process.
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Project Level Materials
Documentation
Project level record keeping practices require that a record be kept of
the quantities of material used and that a record be kept of the
acceptability of these materials. When the project receives material
from a manufacturer or producer they must verify the acceptability of
the material received. As discussed earlier, the shipping document
provided with the material shipment contains certain information. This
information is entered into the on-line system and the project requests
verification of acceptability and documentation of same. This request is
assigned a number for tracking purposes. The information input is
electronically compared against the identifiers assigned to the approved
lot the material was supposedly shipped from and is compared against the
shipment identifying information provided to Contract Administration Division by the
manufacture/producer. This verification process cross checks the lot
identification, date shipped, project identification and quantity. All
of the information input by the project must match information input by
the Contract Administration Division. If the computer verifies that the information
matches, and the material is from a tested lot represented by a Master
Laboratory Number, then a document is initiated that provides the project with
test documentation for the quantity of material shipped to them from the
approved lot. This document is instantaneously available to the field
office and can be maintained electronically or a hard copy can be
generated for conventional files.
With the initiation of this
document, the value representing the quantity of material shipped is
adjusted and a record is available for audit. This information becomes a
part of the materials tracking system.
When the material shipped to
the project is from an approved source or material inspected
specifically for an individual project (Direct Report) all records are
compared as described above but the laboratory number on the shipping
document constitutes coverage. All of this audit, this
shipment verification, was handled by materials auditors and was
extremely time consuming. The shipping, receiving and test documentation
was not available to other subsystems.
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Project Level Materials Record
The project materials records summary, our On-line form number E 440, is used
to record, by pay item number, the receipt of materials on a project
site. This record shows date of use, quantity and laboratory
identification numbers representing test results from samples obtained
from these materials.
For example, the record would
show 125 tons of Type II base course aggregate were received and used on
June 12, the material source is identified, the placement location is
identified and the record shows the source approval number and that a
sample was taken for design verification of the materials delivered. The
laboratory number assigned to the design verification test is listed on the
record. The project obtains the test information from the delivery
tickets accompanying each load of material.
This summary is updated daily
or when work is accomplished on this item. At the completion of an item
all of this information is entered into the on-line system. This
is accomplished by the project entering all inspection and testing
information on the Inspector Daily Report which is entered into the
Project Record System. This system upload to the Mainframe
Materials File System where are records are cross checked with the
material files.
The subsystem used for the analysis of the project materials record
compares the data from this summary with data extracted from the on-line
data files of the Materials Management System. The files that are used
in the analysis of the summary data contain the basic information
represented by laboratory testing. Further, if a special analysis of the
material was required at the time it was tested, this analysis would
have been added to this file to address specification compliance.
Evaluation of this summary verifies that the laboratory numbers
referenced are on file, that the quantities used have been tested, and
that specification compliance has been documented.
If the system notes any
deviation from the acceptance procedure such deviations are displayed on
the terminal. This provides field personnel with an overview of the
compliance of the documents with certification requirements at the time
of data entry.
If there are deviations from
the acceptance criteria at the time of entry to the on-line system,
resolution of these problems is required prior to final review of the
audit by central Contract Administration personnel.
If there are no deviations from
the acceptance criteria, the system notes completion and acceptance of
the item.
Prior to implementation of this
system a hands on physical audit and review of all documents required to
support compliance was required. In the case of a major structure the
number of test documents for concrete used in substructure units could
number in the hundreds.
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Project/Item Certification
The subsystem of the Materials Management System that all of this work
is geared toward is the project or item certification of all materials
incorporated into our projects. This subsystem makes use of both the
project materials record and the report on materials tested. Each
District Material Section is responsible for the in progress
Certification of Items. They must maintain all records current and
correct within two week of any data being uploaded from the projects to
the Mainframe Material File System. To assist the District in this
task the mainframe computer printout on screen as well as hard copies of
all errors in uploaded data. This finds most mistakes except for
missing laboratory numbers. The missing laboratory numbers and
other mistakes are shown on the E440 screen when the Districts Material
Systems starts reviewing the information. All major projects and
resurfacing section have viewing access to the E440's and the status of
all test reports.
Information is extracted from
the Materials Management System to be used in the final analysis for the
certification of the project or item. The system checks each entry from
these records to verify that a sample was taken, that tests were
conducted, that results were within specifications, that shipments
documented are properly traceable back to the source and that all source
approvals are properly documented. If there were problems to be
resolved, the existence of proper documentation is verified. This
on-line certification process provides the final electronic audit in
real time and the results are returned to the terminal display for a
final personnel review. The system reduces the process down to a yes/no
or pass/fail decision that is displayed on each materials test entry in
the project summary. This makes the certification process extremely fast
and a very easy process. When our staff completes the review the report
is assigned a date and initialed by our reviewer. The system at this
point is protected to prevent modification of the records by anyone
other that the central review staff.
This Materials Management
System , as it has been dubbed, has reduced the paper flow that
supported the certification system by approximately 95% and review time
and effort has been correspondingly reduced.
The physical handling, review
and analysis has been reduced from a labor-intensive process to a highly
automated process.
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Report on Materials Tested
At the completion of work on a
project initiates a report on all materials. This report on
materials is a summary report of all items of work and includes the
final quantities of materials used. This data is compared at the
District's materials section to those records in the on-line E440 to
verify if quantities tested and approved are correct. This is the
signal for the system to determine final status of materials
acceptability for the project. When this process and the
Project/Item Certification process is completed an electronics MC-8
(Summary Quantity of all Materials Used and Tested by Bid Item) is
generated and submitted to the Finalization Section of Contract
Administration Division. This file is updated from the project
materials record file and displays an overview of the status of the
project records item by item.
Before the on-line system was
instituted a hands on review of all of the items and correlation of them
with the project materials report was required before the processing of
the documentation could begin.
Final Comments
This system is only successful
because of the interlinking of several Divisions' computer systems.
No data is entered twice; one entry in one system move the information
to other systems that need information.
In addition data entered at
projects, at various District Materials Sections, Materials Control,
Soil, and Testing Division, and Contract Administration Division are all
moved to the Materials File Management System. This information is
used to determine if the materials used were in conformance with
approved plans and specifications. Also it can be determined if
construction operations controlled by sampling and testing likewise
conforms to plans and specifications.
Only by the cooperation of
Computer Services Division, Materials Control, Soil and Testing
Division, and Contract Administration Division (formerly Construction
Division) have we been able to achieve the integration of systems that
currently exist. That integration is continuing with the advent of
new Project Records System which will upload all necessary records
electronically to the Material Management Systems as needed and the
Districts' connection to the new Project Records System Master System in
Contract Administration Division. These new file systems will
allow better real time review and error corrections by the responsible
parties.
Our employees and management
realize that today's organizations are information driven and we have to
be collaborative in sharing data to be most effective. Sharing
information is the prerequisite for collegial organizations and only
they are adapted to solving the complex problems we face today. We
have shed the management of imperialism where managers felt they could
gain strength by personally controlling the access and flow of
information and came to realized that being a provider of useful
information is what makes one a valuable manager and a more valuable
organization. Of course we do limit the authority to make changes
in files to the required few personnel and have systems that record whom
added, corrected, or changed any file.
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