Difference between revisions of "Category:1032 Precast Concrete Flared End Sections"

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|'''MGS Information'''
 
|'''MGS Information'''
 
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|[http://www.modot.mo.gov/business/materials/pdf/mgs/MGSINDEX.pdf Current General Services Specifications (MGS) By Subject]  
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|[https://www.modot.org/general-services-specifications-mgs-subject Current General Services Specifications (MGS) By Subject]  
 
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This article establishes procedures for inspecting, sampling and reporting precast concrete flared end sections.  Refer to [http://www.modot.mo.gov/business/standards_and_specs/Sec1032.pdf Sec 1032] for MoDOT’s specifications.   
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This article establishes procedures for inspecting, sampling and reporting precast concrete flared end sections.  Refer to [http://www.modot.org/business/standards_and_specs/SpecbookEPG.pdf#page=14 Sec 1032] for MoDOT’s specifications.   
  
For Laboratory testing and sample reporting procedures, refer to [[1032.3 Laboratory Testing Guidelines for Sec 1032|1032.3 Laboratory Testing Guidelines for Sec 1032]].  
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For Laboratory testing and sample reporting procedures, refer to [[1032.3 Laboratory Testing Guidelines for Sec 1032|EPG 1032.3 Laboratory Testing Guidelines for Sec 1032]].  
  
 
===1032.1 Apparatus===
 
===1032.1 Apparatus===
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Acceptance of precast concrete flared end sections is to be based on acceptance of materials incorporated into the end section, compressive strength of concrete as determined from cylinders or cores and inspection of the finished end section.
 
Acceptance of precast concrete flared end sections is to be based on acceptance of materials incorporated into the end section, compressive strength of concrete as determined from cylinders or cores and inspection of the finished end section.
  
Confirm that the materials incorporated into the product are approved, that reinforcement is properly placed, that compressive strength of representative concrete is greater than 4,000 psi and that the finished section has proper dimensions and appearance.
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Confirm that the materials incorporated into the product are approved, that reinforcement is properly placed, that compressive strength of representative concrete is greater than 4,000 psi and that the finished section has proper dimensions and appearance. If steel fibers are used instead of standard reinforcement, confirm that acceptable proof-of-design testing for the flared end section has been conducted within the last three years and that the fiber type and dosage rate match the tested design.  Additionally, check that end sections have no protruding steel fibers.
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|[[106.9 Buy America Requirement|EPG 106.9 Buy America Requirement]]
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End sections that are compliant on the basis of inspection are to be stamped MoDOT OK. The SiteManager Sample I.D. is to be printed next to the OK stamp. The stamp and marking should be on the inside of the left side of the flare as you look into the flared end, so it remains visible after installation.
 
End sections that are compliant on the basis of inspection are to be stamped MoDOT OK. The SiteManager Sample I.D. is to be printed next to the OK stamp. The stamp and marking should be on the inside of the left side of the flare as you look into the flared end, so it remains visible after installation.
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====1032.2.2 Acceptance by Certification Method====
 
====1032.2.2 Acceptance by Certification Method====
The District Construction and Materials Engineer may review the manufacturer's quality control procedures and make an annual recommendation to Construction and Materials regarding the appropriateness of acceptance of material by the certification process. Manufacturers approved to produce on certification are listed the table below. Material from listed manufacturers may be accepted based on certification, manufacturer's quality control documentation and compressive strength tests on samples.
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The District Construction and Materials Engineer may review the manufacturer's quality control procedures and make an annual recommendation to Construction and Materials regarding the appropriateness of acceptance of material by the certification process. Manufacturers approved to produce on certification are listed the table below. Material from listed manufacturers may be accepted based on certification, manufacturer's quality control documentation and compressive strength tests on samples. If steel fibers are used instead of standard reinforcement, quality control documentation shall show acceptable proof-of-design testing for the flared end section has been conducted within the last three years and that the fiber type and dosage rate match the tested design.
  
 
===<center>Table 1032 Certified Fabricators of Precast Concrete Flared End Sections</center>===
 
===<center>Table 1032 Certified Fabricators of Precast Concrete Flared End Sections</center>===
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Compressive strength of a sample, dimensions of representative end sections, workmanship and quality control processes and documentation are to be checked a minimum of twice each year. If they are not acceptable, the manufacturer will be notified immediately that they are no longer listed and any existing product is ineligible for MoDOT work. The manufacturer would be allowed to make new product under the procedure in [[:category:1032 Precast Concrete Flared End Sections#1032.2.1 Acceptance by Inspection Method|1032.2.1 Acceptance by Inspection Method]].
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Compressive strength of a sample, dimensions of representative end sections, workmanship and quality control processes and documentation are to be checked a minimum of twice each year. Additionally, if end sections contain steel fibers instead of standard reinforcement, check documentation of steel fiber use and that representative end sections have no protruding fibers. If they are not acceptable, the manufacturer will be notified immediately that they are no longer listed and any existing product is ineligible for MoDOT work. The manufacturer would be allowed to make new product under the procedure in [[:category:1032 Precast Concrete Flared End Sections#1032.2.1 Acceptance by Inspection Method|EPG 1032.2.1 Acceptance by Inspection Method]].
  
 
End sections that are clearly marked with a listed manufacturer's name are acceptable on the basis of that name and do not require the MoDOT OK stamp or a Sample I.D. number on the end section.
 
End sections that are clearly marked with a listed manufacturer's name are acceptable on the basis of that name and do not require the MoDOT OK stamp or a Sample I.D. number on the end section.

Latest revision as of 14:07, 11 October 2018

MGS Information
Current General Services Specifications (MGS) By Subject

This article establishes procedures for inspecting, sampling and reporting precast concrete flared end sections. Refer to Sec 1032 for MoDOT’s specifications.

For Laboratory testing and sample reporting procedures, refer to EPG 1032.3 Laboratory Testing Guidelines for Sec 1032.

1032.1 Apparatus

(a) Rule with suitable graduations to accurately measure the material to be inspected.
(b) OK - MoDOT stamp.
(c) Weather resistant marking materials.

1032.2 Procedure

1032.2.1 Acceptance by Inspection Method

Acceptance of precast concrete flared end sections is to be based on acceptance of materials incorporated into the end section, compressive strength of concrete as determined from cylinders or cores and inspection of the finished end section.

Confirm that the materials incorporated into the product are approved, that reinforcement is properly placed, that compressive strength of representative concrete is greater than 4,000 psi and that the finished section has proper dimensions and appearance. If steel fibers are used instead of standard reinforcement, confirm that acceptable proof-of-design testing for the flared end section has been conducted within the last three years and that the fiber type and dosage rate match the tested design. Additionally, check that end sections have no protruding steel fibers.

Related Information about Steel Fibers
EPG 106.9 Buy America Requirement

End sections that are compliant on the basis of inspection are to be stamped MoDOT OK. The SiteManager Sample I.D. is to be printed next to the OK stamp. The stamp and marking should be on the inside of the left side of the flare as you look into the flared end, so it remains visible after installation.

End sections are to be reported to the contract using SiteManager.

1032.2.2 Acceptance by Certification Method

The District Construction and Materials Engineer may review the manufacturer's quality control procedures and make an annual recommendation to Construction and Materials regarding the appropriateness of acceptance of material by the certification process. Manufacturers approved to produce on certification are listed the table below. Material from listed manufacturers may be accepted based on certification, manufacturer's quality control documentation and compressive strength tests on samples. If steel fibers are used instead of standard reinforcement, quality control documentation shall show acceptable proof-of-design testing for the flared end section has been conducted within the last three years and that the fiber type and dosage rate match the tested design.

Table 1032 Certified Fabricators of Precast Concrete Flared End Sections

Manufacturer Fabrication Units
Rose Concrete Products, Inc. English
733 Rose Con Road
Scott City, MO 63780
(09/04)
Cretex Concrete Products Midwest, Inc. English
P.O. Box 860310
23600 West 40th Street
Shawnee, KS 66226
(11/04)
Independent Concrete Pipe Company English
12950 Gravois Road
St. Louis, MO 63127
(12/04)
Scurlock Industries of Springfield, Inc. English
3401 W. Commercial
P.O. Box 1078
Springfield, MO 65801
(01/05)
BeCo Concrete Products, Inc. English
P.O. Box 544
909 Brown Street
Fulton, MO 65251
(02/05)
BeCo Concrete Products English
4855 Baumgartner Road
St. Louis, MO 63129
(02/05)
Rinker Materials – Hydro Conduit English
P.O. Box 9187
Kansas City, MO 64168
(07/05)
PRETECH Precast Concrete Technologies English
8934 Woodend Road
Kansas City, KS 66111
(07/06)

Compressive strength of a sample, dimensions of representative end sections, workmanship and quality control processes and documentation are to be checked a minimum of twice each year. Additionally, if end sections contain steel fibers instead of standard reinforcement, check documentation of steel fiber use and that representative end sections have no protruding fibers. If they are not acceptable, the manufacturer will be notified immediately that they are no longer listed and any existing product is ineligible for MoDOT work. The manufacturer would be allowed to make new product under the procedure in EPG 1032.2.1 Acceptance by Inspection Method.

End sections that are clearly marked with a listed manufacturer's name are acceptable on the basis of that name and do not require the MoDOT OK stamp or a Sample I.D. number on the end section.

To retain listing as a certified producer, the manufacturer must report any sections shipped for MoDOT work before, or the day of, shipment so the material may be reported by the district to the contract using SiteManager.

Compressive strength is to be determined for each 300 flared end sections of each size and type offered for inspection regardless of the inspection method, and should be recorded in SiteManager.

Articles in "1032 Precast Concrete Flared End Sections"

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