1、*USACE / NAVFAC / AFCESA / NASA UFGS-32 16 15 (April 2008)-Preparing Activity: USACE SupersedingUFGS-32 16 15 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated March 2008*SECTION TABLE OF CONTENTSDIVISION 32 - EXTERIOR IMPROVEMENTSSECTION 32 16 15CONCRETE
2、 BLOCK PAVEMENTS04/08PART 1 GENERAL1.1 PAYMENT PROCEDURES1.1.1 Pavements1.1.2 Edge Restraint1.2 REFERENCES1.3 SUBMITTALS1.4 MAINTENANCEPART 2 PRODUCTS2.1 MATERIALS2.1.1 Bedding and Jointing Sand2.1.2 Concrete Paving Block2.1.3 Edge Restraints2.1.3.1 Treated Wood2.1.3.2 Precast Concrete2.1.3.3 Cast-i
3、n-Place Concrete2.2 TESTS, INSPECTIONS AND VERIFICATIONS2.2.1 Paving Block2.2.1.1 Freezing and Thawing2.2.1.2 Dimensional Tolerance2.2.1.3 Retest2.2.2 SandPART 3 EXECUTION3.1 PREPARATION3.1.1 Edge Restraint Location3.1.2 Sand Bedding Layer3.2 BLOCK PLACEMENT3.2.1 Unfilled Gaps3.2.2 Seating Blocks3.2
4、.3 Jointing Sand3.2.4 Timing of Operations3.2.5 Final RollingSECTION 32 16 15 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2.6 Construction Traffic3.3 CLEANUP3.4 SMOOTHNESS AND GRADE TOLERANCES3.4.1 Smoothness3.4.2 Block Height3.4.3 Grade3
5、.4.4 Remedial Action- End of Section Table of Contents -SECTION 32 16 15 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-32 16 15 (April 2008)-Preparing Activity: USACE SupersedingUFGS-32 16 15 (April 2006)U
6、NIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated March 2008*SECTION 32 16 15CONCRETE BLOCK PAVEMENTS04/08*NOTE: This guide specification covers the requirements for constructing a concrete block pavement.Edit this guide specification for project specific requirements
7、 by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets are present.Comments and suggestions on this guide specification are welcome and s
8、hould be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designation and telephone number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL1.1 PAYMENT PROC
9、EDURES*NOTE: Delete this paragraph in fixed price contracts.*1.1.1 PavementsThe blocks, cut blocks, bedding sand, and jointing sand will be paid per square meter foot of satisfactorily installed block pavement surface.1.1.2 Edge RestraintThe edge restraint will be paid per lineal meter foot of satis
10、factorily SECTION 32 16 15 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-installed edge restraint.1.2 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are referred
11、 to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside of the Sections Reference Article to automatically place the reference in the Reference Article. Also use
12、the Reference Wizards Check Reference feature to update the issue dates.References not used in the text will automatically be deleted from this section of the project specification when you choose to reconcile references in the publish print process.*The publications listed below form a part of this
13、 specification to the extent referenced. The publications are referred to within the text by the basic designation only.ACI INTERNATIONAL (ACI)ACI 301 (2005) Specifications for Structural ConcreteAMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO)AASHTO M 133 (2007) Standard
14、Specification for Preservatives and Pressure Treatment Processes for TimberASTM INTERNATIONAL (ASTM)ASTM C 117 (2004) Standard Test Method for Materials Finer than 75-um (No. 200) Sieve in Mineral Aggregates by WashingASTM C 131 (2006)Standard Test Method for Resistance to Degradation of Small-Size
15、Coarse Aggregate by Abrasion and Impact in the Los Angeles MachineASTM C 136 (2006) Standard Test Method for Sieve Analysis of Fine and Coarse AggregatesASTM C 67 (2007a) Standard Test Methods for Sampling and Testing Brick and Structural Clay TileASTM C 936 (2007) Solid Concrete Interlocking Paving
16、 SECTION 32 16 15 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-UnitsASTM C 979 (2005) Pigments for Integrally Colored ConcreteASTM D 4318 (2005) Liquid Limit, Plastic Limit, and Plasticity Index of SoilsASTM D 75 (2003) Standard Practice for
17、 Sampling AggregatesASTM E 11 (2004) Wire Cloth and Sieves for Testing Purposes1.3 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required for the project. Submittals should be kept to
18、 the minimum required for adequate quality control.A “G” following a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an existing “G” if the submittal item is not complex and can be reviewed through the Contractors Q
19、uality Control system. Only add a “G” if the submittal is sufficiently important or complex in context of the project.For submittals requiring Government approval on Army projects, a code of up to three characters within the submittal tags may be used following the “G“ designation to indicate the ap
20、proving authority. Codes for Army projects using the Resident Management System (RMS) are: “AE“ for Architect-Engineer; “DO“ for District Office (Engineering Division or other organization in the District Office); “AO“ for Area Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes fol
21、lowing the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.*Government approval is required for submittals with a “G“ designation; submittals not having a “G
22、“ designation are for Contractor Quality Control approval. information only. When used, a designation following the “G“ designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-04 SamplesSECT
23、ION 32 16 15 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Concrete Paving Block; G; G, _A sample of five paving blocks prior to the start of the work. Also, a representative sample of not less than 15 blocks as directed by the Contracting Of
24、ficer, from each lot of 20,000 concrete paving blocks or fraction thereof.SD-06 Test ReportsTests, Inspections and VerificationsA written report within 7 calendar days after completion of the work, covering the testing required for each lot.1.4 MAINTENANCE*NOTE: This paragraph will be included only
25、if the project has aesthetic considerations where future maintenance must exactly match the color of the block.*At the completion of work provide _ paving blocks matching those used in the project. These paving blocks shall be delivered stacked on pallets.PART 2 PRODUCTS2.1 MATERIALS2.1.1 Bedding an
26、d Jointing Sand*NOTE: If the pavement is to be subjected to Design Index traffic of 8 or higher, both the bedding and jointing sands will consist of 100 percent crushed sand, if it is available in the construction locale. For block pavements to be used for walkway, driveway, storage area, parking ar
27、ea, or subject to traffic Design Indexes of 1 or 2, the bedding sand gradation can be changed to the fine aggregate gradation in ASTM C 33 with the additional requirement of 0-10 percent passing the 0.075 mm (No. 200) sieve.*Use two separate sand gradations for the bedding layer and in the block joi
28、nts. Both sand gradations shall consist of crushed sand, natural sand, or a combination of crushed and natural sand. Both sand gradations shall have a minimum L.A. Abrasion of 40 percent when tested in accordance with ASTM C 131. Both sand gradations shall be nonplastic when tested in accordance wit
29、h ASTM D 4318 and shall be free of lumps, clay, vegetation, soft particles, sulphates, and other contaminants. The bedding and jointing sands shall conform to the following gradations, determined in accordance with ASTM C 136 and ASTM C 117, using ASTM E 11sieve.SECTION 32 16 15 Page 6Provided by IH
30、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Percent Passing_ Sieve Bedding Sand Jointing Sand(ASTM E 11)_ _ _9.5 mm 100 1004.75 mm 80-100 1002.36 mm 60-90 95-1001.18 mm 25-70 70-1000.600 mm 10-35 40-750.300 mm 5-20 10-400.150 mm 0-10 2-250.075 mm 0-5 0-10Perce
31、nt Passing_ Sieve Bedding Sand Jointing Sand(ASTM E 11)_ _ _3/8 in. 100 100No. 4 80-100 100No. 8 60-90 95-100No. 16 25-70 70-100No. 30 10-35 40-75No. 50 5-20 10-40No. 100 0-10 2-25No. 200 0-5 0-102.1.2 Concrete Paving Block*NOTE: Color and shape of block may be specified. Check local availability of
32、 specific colors or shapes before specifying. Organic pigments should not be used, since they are unstable in the alkaline concrete environment and subject to weathering. Shape is generally rectangular or interlocking.*The concrete paving block shall conform to ASTM C 936, and shall be _ thick, _ in
33、 color, and _ in shape. Pigmentation shall conform to ASTM C 979.2.1.3 Edge Restraints2.1.3.1 Treated Wood*NOTE: Treated wood edge restraint is only acceptable for walkways and residential driveways. Delete this paragraph when this option is not retained.*The edge restraint shall be wood treated in
34、accordance with AASHTO M 133 and of dimensions shown on the plans.SECTION 32 16 15 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.1.3.2 Precast Concrete*NOTE: Minimum compressive strength of precast concrete should be 21 MPa (3,000 psi) unle
35、ss analysis requires some other value. Entrained air content of the fresh concrete should be 6 percent plus or minus 1.5 percent in areas where freezing and thawing coverage is a design consideration. Delete this paragraph when this option is not retained.*The edge restraint shall be precast portlan
36、d cement concrete elements with the dimensions shown on the plans. The precast concrete shall have a compressive strength of not less than _ at 28 days and an entrained air content of not less than _.2.1.3.3 Cast-in-Place Concrete*NOTE: Minimum compressive strength of cast-in-place concrete should b
37、e 21 MPa (3,000 psi) unless analysis requires some other value. Entrained air content of the fresh concrete should be 6 percent plus or minus 1.5 percent in areas where freezing and thawing coverage is a design consideration. Delete this paragraph when this option is not retained.*The edge restraint
38、 shall be portland cement concrete placed with the dimensions shown in the plans. Concrete shall conform to the requirements of ACI 301, except that it shall have a compressive strength of not less than _ at 28 days and an entrained air content of not less than _.2.2 TESTS, INSPECTIONS AND VERIFICAT
39、IONS2.2.1 Paving Block*NOTE: Sampling of paving blocks prior to the start of the work for the purposes of verifying the color and shape of the blocks will only be required when these considerations are critical to the project aesthetics. For jobs of less than 1000 square meters (10,000 square feet)
40、or for pavements not to be exposed to vehicular traffic, a manufacturers certificate which certifies that the paving blocks meet the requirements of ASTM C 936 can be accepted in lieu of sampling and testing the blocks of each lot.*Conduct the tests prescribed by ASTM C 936 and the following tests on the remaining 13 blocks of each sample from each lot.SECTION 32 16 15 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2.1.1 Freezing and Thawing*
