1、*USACE / NAVFAC / AFCESA / NASA UFGS-03 37 29 (November 2009)-Preparing Activity: USACE (CW) SupersedingUFGS-03 37 29 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2009*SECTION TABLE OF CONTENTSDIVISION 03 - CONCRETESECTION 03 37 29CONCRETE FO
2、R CONCRETE CUTOFF WALLS11/09PART 1 GENERAL1.1 UNIT PRICES1.1.1 Coring Concrete in Completed Panels1.1.1.1 Payment1.1.1.2 Measurement1.1.2 Unit of Measure1.2 REFERENCES1.3 SYSTEM DSCRIPTION1.3.1 Responsibility of Mixture Proportioning1.3.2 Concrete Proportioning1.4 SUBMITTALS1.5 QUALITY ASSURANCE1.5.
3、1 Government Testing and Sampling1.5.2 Preconstruction Sampling and Testing1.5.2.1 Aggregates1.5.2.2 Cementitious Materials and Admixtures1.5.3 Construction Testing by the Government1.5.3.1 Chemical Admixtures Requirements1.5.3.2 Cement and Pozzolan1.5.3.3 Concrete TestsPART 2 PRODUCTS2.1 MATERIALS2
4、.1.1 Cementitious Materials2.1.1.1 Portland Cement2.1.1.2 Pozzolan, Other than Silica Fume2.1.1.3 Ground Granulated Blast-Furnace (GGBF) Slag2.1.2 Aggregates2.1.2.1 Listed Sources2.1.2.2 Concrete Aggregate Sources2.1.2.3 Quality2.1.2.4 Fine Aggregate Grading and Moisture Content2.1.2.5 Coarse Aggreg
5、ate Grading and Moisture Content2.1.3 Chemical AdmixturesSECTION 03 37 29 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.1.3.1 Air-Entraining Admixture2.1.3.2 Accelerating Admixture2.1.3.3 Flowing Concrete Admixtures2.1.4 Water2.2 PLANT AND
6、EQUIPMENT2.2.1 Capacity2.2.2 Batch Plant2.2.2.1 Batching Equipment2.2.2.2 Scales2.2.2.3 Batching Tolerances2.2.2.4 Moisture Control2.2.3 Concrete Mixers2.2.3.1 Stationary Mixers2.2.3.2 Truck Mixers2.2.4 Conveying Equipment2.2.4.1 Buckets2.2.4.2 Trucks2.2.4.3 Chutes2.2.4.4 Concrete PumpsPART 3 EXECUT
7、ION3.1 PLACING3.1.1 Time Interval Between Mixing and Placing3.1.2 Placing Temperature3.1.3 Concrete Deposited in Cutoff Trench3.1.4 Concrete Placement3.1.5 Required Height of Concrete3.2 CURING AND PROTECTION3.3 TESTS AND INSPECTIONS3.3.1 General3.3.2 Testing and Inspection Requirements3.3.2.1 Fine
8、Aggregate3.3.2.2 Coarse Aggregate3.3.2.3 Quality of Aggregates3.3.2.4 Deleterious Substances3.3.2.5 Scales3.3.2.6 Batch-Plant Control3.3.2.7 Concrete Mixture3.3.2.8 Placing3.3.2.9 Curing3.3.2.10 Mixer Uniformity3.3.3 Reports3.3.4 Concrete Coring3.3.4.1 Concrete Coring in Completed Panels3.3.4.2 Meth
9、od of Drilling3.3.4.3 Equipment and Supplies3.3.4.4 Core Boxes3.3.4.5 Disposition of Core Samples3.3.4.6 Backfilling Core Holes3.3.5 Evaluation and Acceptance- End of Section Table of Contents -SECTION 03 37 29 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
10、e from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-03 37 29 (November 2009)-Preparing Activity: USACE (CW) SupersedingUFGS-03 37 29 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2009*SECTION 03 37 29CONCRETE FOR CONCRETE CUTOFF WALLS11/09*NOT
11、E: This guide specification covers the requirements for concrete cutoff wall structures.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requ
12、irements not required in respective project, whether or not brackets are present.Comments and suggestions on this guide specification are welcome and should be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designation and te
13、lephone number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*NOTE: The content of this specification is such that guidance given in EM 1110-2-2000, “Standard Practice for Concrete“, is applicable.*1.1 UNIT PRICES*NOTE: If Sec
14、tion 01 22 00.00 10 MEASUREMENT AND PAYMENT is included in the project specifications, this paragraph title (UNIT PRICES) should be deleted from this section and the remaining appropriately edited subparagraphs below should be inserted into Section 01 22 00.00 10.SECTION 03 37 29 Page 3Provided by I
15、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-With the exception of coring concrete in completed panels, all costs in connection with this section, including all materials, will be included in the payment item(s) specified.Core recovery percentage for each bori
16、ng should be a high number such as 90 to 95, since it is expected that a competent concrete material is being cored. The deviation of the core hole should be in relation to the smallest dimension of the panels that will be produced for each jobsite.*1.1.1 Coring Concrete in Completed Panels1.1.1.1 P
17、aymentPayment will be made for costs associated with Coring Concrete in Completed Panels and backfilling the core holes. This price will constitute full compensation for mobilizing and demobilizing and furnishing all equipment and supplies necessary to perform all operations specified. No payment wi
18、ll be made for coring and backfilling at a location where the coring reveals the presence of “unacceptable concrete“, as specified in paragraph UNACCEPTABLE CONCRETE IN COMPLETED PANELS in PART 3. All costs incurred, including the initial core boring and as many additional core borings as may be req
19、uired to delineate the limits of the unacceptable concrete and the repair of the cutoff wall, shall be borne by the Contractor and shall not result in any additional cost to the Government.1.1.1.2 MeasurementCoring Concrete in Completed Panels will be measured for payment from the top of the panel t
20、o the bottom of the core hole. If overall core recovery for a boring is less than _ percent or the boring deviates from the cutoff wall prior to reaching a depth of _ meters feet, the boring shall be redrilled and backfilled at no additional cost to the Government.1.1.2 Unit of MeasureUnit of measur
21、e: per linear meter foot of cored hole.1.2 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title.
22、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 the Reference Wizards Check Reference feature to update the issue dates.References not used in the text will automati
23、cally SECTION 03 37 29 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-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
24、this specification to the extent referenced. The publications are referred to within the text by the basic designation only.ACI INTERNATIONAL (ACI)ACI 211.1 (1991; R 2009) Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass ConcreteASTM INTERNATIONAL (ASTM)ASTM C 1017/C 101
25、7M (2007) Standard Specification for Chemical Admixtures for Use in Producing Flowing ConcreteASTM C 1064/C 1064M (2008) Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement ConcreteASTM C 1077 (2009b) Standard Practice for Laboratories Testing Concrete and Concrete Aggregates for
26、Use in Construction and Criteria for Laboratory EvaluationASTM C 117 (2004) Standard Test Method for Materials Finer than 75-um (No. 200) Sieve in Mineral Aggregates by WashingASTM C 123 (2004) Standard Test Method for Lightweight Particles in AggregateASTM C 1260 (2007) Standard Test Method for Pot
27、ential Alkali Reactivity of Aggregates (Mortar-Bar Method)ASTM C 127 (2007) Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse AggregateASTM C 128 (2007a) Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggreg
28、ateASTM C 131 (2006)Standard Test Method for Resistance to Degradation of Small-Size 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 142 (1997; R 2004) Standard Test Method for Clay Lumps
29、and Friable Particles in SECTION 03 37 29 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AggregatesASTM C 143/C 143M (2009) Standard Test Method for Slump of Hydraulic-Cement ConcreteASTM C 150/C 150M (2009) Standard Specification for Portland
30、 CementASTM C 1567 (2008) Standard Test Method for Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate (Accelerated Mortar-Bar Method)ASTM C 172 (2008) Standard Practice for Sampling Freshly Mixed ConcreteASTM C 192/C 192M (2007) Standard Practice for Making an
31、d Curing Concrete Test Specimens in the LaboratoryASTM C 231 (2009a) Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure MethodASTM C 260 (2006) Standard Specification for Air-Entraining Admixtures for ConcreteASTM C 295 (2008) Petrographic Examination of Aggregates for Co
32、ncreteASTM C 31/C 31M (2009) Standard Practice for Making and Curing Concrete Test Specimens in the FieldASTM C 33/C 33M (2008) Standard Specification for Concrete AggregatesASTM C 39/C 39M (2005e1e2) Standard Test Method for Compressive Strength of Cylindrical Concrete SpecimensASTM C 40 (2004) Sta
33、ndard Test Method for Organic Impurities in Fine Aggregates for ConcreteASTM C 441 (2005) Effectiveness of Pozzolansor Ground Blast-Furnace Slag in Preventing Excessive Expansion of Concrete Due to the Alkali-Silica ReactionASTM C 494/C 494M (2008a) Standard Specification for Chemical Admixtures for
34、 ConcreteASTM C 535 (2009) Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles MachineASTM C 566 (1997; R 2004) Standard Test Method for Total Evaporable Moisture Content of Aggregate by DryingSECTION 03 37 29 Page 6Provided by
35、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASTM C 618 (2008a) Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in ConcreteASTM C 70 (2006) Standard Test Method for Surface Moisture in Fine AggregateASTM C 87 (2005) Effect
36、 of Organic Impurities in Fine Aggregate on Strength of MortarASTM C 94/C 94M (2009) Standard Specification for Ready-Mixed ConcreteASTM C 989 (2009a) Standard Specification for Ground Granulated Blast-Furnace Slag for Use in Concrete and MortarsASTM D 75/D 75M (2009) Standard Practice for Sampling
37、AggregatesNATIONAL DRILLING ASSOCIATION (NDA)DCDMA TM (1991) DCDMA Technical ManualNATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (NIST)NIST HB 44 (2007) NIST Handbook 44: Specifications, Tolerances, and other Technical Requirements for Weighing and Measuring DevicesNATIONAL READY MIXED CONCRETE ASS
38、OCIATION (NRMCA)NRMCA CPMB 100 (2000) Concrete Plant StandardsU.S. ARMY CORPS OF ENGINEERS (USACE)COE CRD-C 100 (1975) Method of Sampling Concrete Aggregate and Aggregate Sources, and Selection of Material for TestingCOE CRD-C 104 (1980) Method of Calculation of the Fineness Modulus of AggregateCOE
39、CRD-C 112 (1969) Method of Test for Surface Moisture in Aggregate by Water DisplacementCOE CRD-C 130 (2001) Standard Recommended Practice for Estimating Scratch Hardness of Coarse Aggregate ParticlesCOE CRD-C 143 (1962) Specifications for Meters for Automatic Indication of Moisture in Fine Aggregate
40、sCOE CRD-C 400 (1963) Requirements for Water for Use in Mixing or Curing ConcreteSECTION 03 37 29 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.3 SYSTEM DSCRIPTION*NOTE: Well-rounded natural aggregates are preferred due to the increased flo
41、wability of concrete containing these aggregates. If crushed aggregates are used, the fine aggregate and cementitious materials contents may have to be increased to achieve satisfactory flowability. If crushed aggregate is used, increase the specified minimum cement content to 335 kg per cubic meter
42、 (564 pounds per cubic yard).*Concrete Mixture Proportioning shall conform to the following:a. Maximum Water-Cement Ratio - The maximum water-cement ratio by weight of equivalent portland cement shall be 0.50, unless otherwise approved in writing.b. Cement Content - The cement content of the concret
43、e shall be within the range from a minimum of 279 kg 470 pounds _ to a maximum of 446 kg/cubic meter 752 pounds/cubic yard. When a pozzolan is used, the total absolute volume of cementitious material shall be within the same range in absolute volume as previously specified. Of the total absolute vol
44、ume of cementitious materials, between 20 and 30 percent may be pozzolan that meets the requirements of paragraph POZZOLAN, OTHER THAN SILICA FUME in PART 2. If GGBFS is used, it shall not exceed 25 percent by absolute volume, and percentage shall be as approved before mixture proportioning studies
45、commence.c. Nominal Maximum-Size Coarse Aggregate - The nominal maximum-size coarse aggregate shall be 19.0 mm 3/4 inch 25.0 mm 1 inch.d. Fine Aggregate - Fine aggregate shall comprise approximately 40 to 50 percent, by volume, of the total aggregate.e. Air Content - Air Content as determined by ASTM C 231 shall be 6.0 1.5 percent.f. Slump - Slump shall be determine
