vdot soils and aggregate compaction pdf

Drawings and General Provisions of Contract, including General and Special Conditions and other Division 1 Specification Sections, CHAPTER 9 SEWER / STORM DRAIN / IRRIGATION LINES SECTION 9.01 GENERAL This section covers the requirements for piping materials and installation of Lehi City sewer, storm drainage and irrigation collection. All of the MCS Certifications arevalid for five years and must be retaken every five years to maintain the certification. %PDF-1.5 % Description This section includes materials, testing, and installation of precast concrete, SIENA STONE GRAVITY RETAINING WALL INSTALLATION SPECIFICATIONS Prepared by Risi Stone Systems Used by permission. Page 1 of 6 SECTION 1 GENERAL REQUIREMENTS 1. suzanna_gevorgyan. 10) What is the maximum backfill lift thickness? Describe recommended installation procedures 4. The requirements for pipe material and installation in sewer and drainage collection systems. A compacted soil has a reduced rate of both water infiltration and drainage. When backfill material is above the spring line of the pipe, start at the trench wall and work towards the pipe. The initial backfill of select Type I backfill protects the pipe during installation from impact damage and extends to the springline of the pipe. 11) Pipe openings in precast drainage structures shall not exceed the outside cross sectional dimensions of the pipe by more than how much? The function of the pipe, the soil type present in the trench, the depth of the pipe can all influence the type of pipe selected. SCOPE OF WORK: The work to be performed under the provisions of these documents and the contract based thereon includes furnishing all labor, equipment, materials, To make this website work, we log user data and share it with processors. 2016v1.0 Chapter 4 14, 15 POST INSTALLATION INSPECTION The following is an excerpt from Virginia Test Method 123 Post Installation Inspection of Buried Storm Drain Pipe and Pipe Culverts covering the scope of post installation pipe inspection. Place sample in container and weigh. The top few inches should be slightly yielding (loose) and fill the corrugations. Exams are offered at various locations in Virginia. 3) 104 in. pipe stiffness 65 psi) 6) An end wall for the protection of the outlet pipe. If it is a routine entrance, or crossover pipe 12 to 30 in diameter, that is to be installed under fills 15 feet or less in height, no exploration is needed. For more information about taking the . hbbd``b`$CC`q@ &H" TABLE OF CONTENTS. VDOT Soils and Aggregate Compaction: Chapter 2. What classification systems does VDOT use to classify soils? VDOT: Soils and Aggregate Compaction. June 13th, 2018 - AASHTO AASHTO The AASHTO classification Classification of soils and soil aggregate mixtures for AASHTO system Or use comparable reference Guide Sheet 1 see Construction loads often exceed design loads. 7 0 obj Where applicable, pulleys may be incorporated into the system to change the direction of pull so that inspection personnel need not physically enter the pipe, culvert or manhole. Materials Notebook Resource Document (pdf 2 MB) March 16, 2015. `*r[anyv 14) What is the maximum deflection allowed for flexible pipe? X, `| For positive projection embankment installations, the embankment material should be placed and compacted to a minimum of one foot above the pipe and the trench excavated into the embankment. hb```f``2f`@( SOILS AND AGGREGATE FIELD CERTIFICATION STUDY GUIDE 2015 Prepared by: The Virginia Department of Transportation, Materials Division Note: The information included in this manual is generally compatible with current VDOT Speci cations and instructions; however, it should not be considered a source book for speci cations. americanwick.com 800.242.WICK (9425). f$C@PbYV-Q5];b:N U0[ @{ Generally excavated embankment material is used as the final backfill. Unsuitable foundations must be stabilized at the engineer s direction. Click here to access guidelines for the VDOT Materials Certification Schools Program (Section 114, Manual of Instructions) (PDF, 72 KB). There is a variety of pavement under/edge drains in the VDOT Road and Bridge Standards Volume 1 ( ) with each addressing a specific geometric condition and groundwater condition. eG%\!9]y7WS{t m+zVjO!s[tG{y Q3@CJY1 9&. Figure 4.3: Minimum Cover to Allow Construction Traffic over Pipe 2016v1.0 Chapter 4 3, 4 The following tables give VDOT specifications for maximum height of cover for some types of pipe. Repair of sanitary sewer lines by replacing short lengths of failed pipe with new pipe. For all roadway projects that are constructed by private contractors for VDOT and for all roadway projects constructed by others that are or will be proposed to be accepted into the VDOT highway system, a visual/video camera post installation inspection is required on all storm sewer pipes and for a selected number of pipe culverts in accordance with the instructions contained in this VTM and Section of the VDOT Road and Bridge Specifications. From this we can highlight the following requirements: Visual/ Video Inspection is required on: All Storm Sewer Pipes (100%) Selected Number of Pipe Culverts (>10%) 2016v1.0 Chapter 4 15, 16 Must be done with VDOT Rep Present Conducted no sooner than 30 days after completion of Installation and placement of final cover (except pavement). The following drawing provides typical VDOT standards for pipe bedding and backfill. 129 0 obj <> endobj SECTION LS 2530 SANITARY SEWERS. (Make a Mark on Outside of Pipe) Moving pipe around after joining may cause pipe joint to work apart. 500 grams is the minimum sample required for soils and for aggregate the sample size depends on the Nominal Maximum Size Aggregate. Work shall consist of furnishing and constructing a Rockwood Classic 8 with PCS unit segmental retaining wall, Appendix C: Pipe Material Policy Page C-1 PIPE MATERIAL POLICY Policy: This policy will replace all previous policies regarding the selection of pipe material for cross drains, drive pipe, drop pipe, storm, SECTION 33 31 00.11 GRAVITY SANITARY SEWERS PART 1: GENERAL 1.01 SCOPE A. Locate Utilities Prior to excavating the trench area, all utilities should be located by a qualified contractor. 1.01 Testing - General, June 2007 CHAPTER 7 - CULVERTS 7.0 CHAPTER 7 - CULVERTS 7.1 GENERAL, HDPE PRODUCTS QUALITY, PERFORMANCE AND ECONOMY COMBINED, Chapter 3 CULVERTS. "Understanding soils is the key to becoming a well-rounded special inspector. lift) = 13 tests required (minimum) (Answer) Backfill around Manholes (minimum) One test every fourth compacted lift around the perimeter; beginning after the first 4 inch compacted lift above the bedding and continue to 5 feet below the top of the structure. This happens because large pores more effectively move water downward through . All new construction involves a study and analysis of the on-site soils. Shop drawings, 6.01 SCOPE The work covered by this section of the specifications consists of the furnishing of all plant, labor, materials, equipment and supervision and performing all operations involved in the construction, SECTION 02720 SANITARY SEWER AND STORM DRAIN SYSTEMS PART 1 GENERAL 1.01 SECTION INCLUDES A. Silt and clay are made up of particles smaller than the No. This site uses cookies to enhance site navigation and personalize your experience. Effect of Rock-Sized Aggregates on Soil Compaction Results . 16) What is the level of compaction required for pipe backfill? Pipe Culverts 600-1 A. Endwalls, Inlets, Manholes, and Spring Boxes 600-5 2. SECTION IV - TESTS AND INSPECTIONS PART 1 - GENERAL 1.01 Testing - General Testing shall be of the type and frequency described in each section and summarized in Item 1 of this section. The cost estimates, SPECIFICATIONS FOR SEWER PIPE AND LINING INSERTION - TRENCHLESS; GENERAL GUIDELINES (As Provided by NASSCO) 1 Intent: The intent of trenchless sewer pipe Insertion is to rehabilitate the existing sewer. At the engineer of record's. It is designed to prove an individuals' understanding of nuclear density testing, one-point proctor and "Speedy" moisture tests. VDOT Soils and Aggregate Compaction 2016v1.0 Appendix B | 2 The inspection can be conducted manually if adequate crawl/walking space and ventilation is available to safely conduct the inspection and the individual(s) conducting the inspection have undergone training on working in confined spaces in accordance with VDOT s current Safety Policy and Procedure #8 Confined Space Entry Policy and Procedure General, or the inspection can be conducted with a video camera. 1. The trench s dimensions and location are typically 1 foot wide and 2 to 4 inches below the subgrade and adjacent to the pavement edge. 1103 POINT REPAIRS AND OBSTRUCTION REMOVALS 1103.1 DESCRIPTION: 1. SCOPE Pipe subsoil drains shall be constructed in accordance with this specification and in conformity with the lines, grades and cross-sections shown, 402.02 Section 402. Geotechnical Design Parameters for Retaining Walls, Sound Barrier Walls and Non-Critical Slopes. In construction, this is a significant part of the building process. FOUNDATIONS STEPS TO CONSTRUCTING A MOISTURE-RESISTANT FOUNDATION Build a Better Home Details are critical when constructing a sound building foundation that will withstand water and control dampness. Students must bring valid ID & attend class in order to test. Links may open in a new window. CULVERTS AND BRIDGES 7-5 7.7. 2) Mechanical compacting ram: If a mechanical compacting ram is used, it must be calibrated to produce results 1.02 SUBMITTALS A. These underdrains are segmented systems with outlets spaced at 250 to 350 feet. 4 in.) hb```f````2X@( [ $ When moving concrete pipe you should pick it up by one end. in the field: the soil moisture is near the liquid limit. Larry Ritchie, SECTION 6000 - EXCAVATION, TRENCHING AND BACKFILLING (Pipeline Construction), Table 4.9 Storm Drain Inlet Protetion Applicable for, INSTALLATION GUIDE. As stated earlier, soils are made up of many different types, shapes and sizes of particles. AASHTO T180 The Moisture Density Relations of Soils using a 10-pound Rammer and an 18-inch drop. We also encourage you to contactJ. R. Noble at james.noble@vdot.virginia.gov to sign up for the MCS Managers report, which is offered to help you better track and manage progress throughout the year. 200 sieve. It should be reviewed by a qualified civil or geotechnical engineer, or landscape architect familiar with the site conditions. The foundation is to be explored below the bottom of the excavation to determine the type and condition of the foundation. Each layer of Class I and regular backfill material shall be compacted by rolling, tamping with mechanical rammers, or hand tamping with heavy metal tampers with a face of at least 25 square inches. Highway Plan Reading Guide. MANHOLES 7-4 7.5. This website includes hyperlinks to sites neither controlled nor sponsored by VDOT or the Commonwealth of Virginia. Weigh clean dry container and record weight. The middle of the bedding, should be loosely placed and not exceed 8 inches. 2) 108 in. Currently VDOT certified or Mid Atlantic Regional Technician Program (MARTCP) in the following disciplines: - Expected VDOT Certifications Soil and Aggregate Field Compaction Asphalt Field Hydraulic Cement Concrete Field Pavement Marking Flagger Certification Certification & Issuing Agency Soil and Aggregate Compaction - VDOT or NICET LEVEL II* Soils & Aggregate CCWA $ 350.00 $ 250.00 Handson proficiency will be scheduled upon . 57 stone can be used as a backfill in the sub foundation. Additionally, a copy shall be furnished to local VDOT Asset Management personnel to document the pipe/culvert condition at that point in time. In addition to, 7.0 7.1 GENERAL For the purpose of this manual, culverts are defined as structures that are completely surrounded by soil and located below the surface of the roadway parallel to the general direction, QUALITY, PERFORMANCE AND ECONOMY COMBINED LANE S HDPE DRAINAGE PIPE Scan for more information on Lane s HDPE product line. SECTION 02630 STORM DRAINAGE PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. There are many types of compaction equipment available. SECTION 9. waste aggregate )-4CWP( 4% ceramic waste pow der) represents a 10% aggregate substitution with ceramic waste. 19 terms. Try Now! All materials, Ohio Department of Transportation Division of Production Management Office of Geotechnical Engineering Geotechnical Bulletin GB 1 PLAN SUBGRADES Geotechnical Bulletin GB1 was jointly developed by the Offices, CHAPTER 6 - SANITARY SEWER 6.1 GENERAL This section covers the requirements for PVC plastic sewer pipe materials and installation in sanitary sewer construction. This type joint gasket combination provides a leak resistant joint. Grade Adjustment of Existing Miscellaneous Structures 600-8 3. If you wish to receive this content in an accessible format per Section 508 of the federal Rehabilitation Act, 29 U.S.C. Refer to VDOT Road and Bridge Specifications, Section Procedures (d) Post Installation Inspection for detail requirements and remediation procedures. List components of edge drain systems 3. Lane provides the complete product line to meet all your HDPE drainage needs -, Chapter 3 CULVERTS Description A culvert is a closed conduit used to convey water from one area to another, usually from one side of a road to the other side. Walls that carry extra, TECHNICAL NOTE Culvert Sliplining and Lining of Casings with HPPipe TN 5.14 February 2010 Introduction It may be at times necessary, in an aging infrastructure, to rehabilitate drainage and sanitary lines, SECTION 33 41 00 REINFORCED CONCRETE PIPE PART 1 GENERAL 1.01 SECTION INCLUDES A. Where appropriate, SECTION 5200 - STORM SEWER PART 1 - GENERAL 1.01 SCOPE: This Section covers installation of storm sewer mains and culverts. All cracks shall be digitally scanned to allow for accurate measurement. In addition, two app roaches, soil compaction, and optimal workability are What are those two functions? 4 in.) The goal shall be to collect, C PROJECT ESTIMATE ASSUMPTIONS AND EXCLUSIONS In support of the alternatives development process, preliminary cost estimates were prepared for each of the three Candidate Build Alternatives. This Section describes the requirements for excavating, filling, and grading for earthwork at Parking Structure, new exit stair and as required to, DIVISION 2 - SEWERAGE AND DRAINAGE SECTION 02720 - STORM DRAIN SYSTEMS PART 1 - GENERAL 1.01 DESCRIPTION A. Furnish and install all storm drains, including manholes, inlets, service lines and other appurtenant. 794 (d), please call 800-367-7623. GRIT Manual. VDOT Materials Certification Schools. JnqYj A"@. Computation of U.S. What is the minimum number of density tests that should be run on the backfill material? If your certification expires this year, you must successfully complete all requirements for the certification by completing an instructor-led or self-study course and any proficiency in the same calendar year. When planning a pipeline installation, there are 2 key functions that we must design the pipeline to provide. American Water Works Association When joining pipe: Begin at the downstream end (Bell faces upstream) Ensure spigot and bell are clean and free of debris Properly lubricate spigot and bell with pipe lubricant Is Contractor aware of the maximum insertion angle? Fill Vdot Soils And Aggregate Compaction, Edit online. True. (Road and Bridge Spec. Personal Holding C, Civil Service Personal Background Evaluation, Revised 7/16. protection. It is generally easier to install due to less stringent lubrication requirements for the gasket. 6.2 PIPE PVC gravity sewer pipe and fittings, SECTION 02400 - STORM DRAIN SYSTEM CONTENTS: Part 1 - General 1 1.01 Work Included 1 1.02 Related Requirements 1 1.03 Reference Standards 1 1.04 Quality Assurance 1 1.05 Measurement And. ]1YW'; q=A D0Yf BD0A8 Dh s @!2au28!w)#Nb=` L *w @y7![RYT6 Ke`riO05 ~z Materials. endobj This type of joint provides a leak resistant joint when a profile gasket is used. x; =@~fKJU >e A .E,fjd=| ^'(rN_92>#e' ?Ab t40 [$b3F l`fz>q!`\U1Dsb@2l P9 % When backfill is below spring line of pipe, compact next to pipe first and work towards the trench wall. Screen the sample over a 3/4-inch sieve and replace the aggregate retained with an equal weight of No. Having one of these functions without the other is worthless. stream = 15 lifts 5) 15 ifts 2 (one test every other lift) = 7.5, round up to 8 tests in the top 5 ft. of backfill 6) Total tests required = (Number of test below 5 ft.) + (Number of test above 5 ft.) 7) = 11 tests required (minimum) NOTE: Compaction Tests are required on stone backfill (Class I backfill and bedding material); consult the District Materials Division for Maximum Dry Density and Optimum Moisture Content targets for the specific material being used. You do not have to place pipe bedding material down first when installing a UD 4. 15) What end of the pipe system do you start installation? To prevent sloping soils from becoming. Identify typical construction, 02530-1 of 5 SECTION 02530 STORM DRAINAGE STRUCTURES 02530.01 GENERAL A. By using this site you agree to our use of cookies as described in our, You have been successfully registered in pdfFiller, VDOTSoilsandAggregateCompaction 3 CONSTRUCTIONANDACCEPTANCETESTING OFSUBGRADEMATERIAL LEARNINGOUTCOMES Understandtheimportanceofsubgradeandthedifferenttypesofsubgradematerial Understandthevarioustypesandmethodsofmechanicalandchemicalstabilization, VisitingProfessorofLaw,StanfordLawSchool(Winter;Spring2013);InezMilhol. Pipe Testing Frequency Example 1: Pipe Diameter = 48 in. The compaction equipment will ride on the native soil and not allow for proper consolidation of backfill. The work of this Section includes furnishing and installing Reinforced Concrete Pressure Pipe as shown on the Drawings and as specified. (Provide three) a) b) c) 2) Explain when a rock correction is utilized and what happens to the laboratory maximum dry density and optimum moisture values after a rock . The mandrel shall be pulled through the pipe or culvert by hand with a rope or cable. For written and proficiency exams, contact the community colleges to schedule either an in-person or remote exam. The exploration should extend to a depth equal to per foot of fill height or 8, whichever is greater. VDOT Soils and Aggregate Compaction 2016v1.0 Chapter 1 | 1 hV[oH+hz3HJ How heavy should the hammer be? AASHTO M 145 The Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes. % 4 in.) OPEN CHANNELS 6 Index inlet protection excavated drop inlet protection (Temporary) 6.50.1 HARDWARE CLOTH AND GRAVEL INLET PROTECTION Block and gravel inlet Protection (Temporary) sod drop inlet protection ROCK DOUGHNUT, SECTION 32: SANITARY SEWER INSTALLATION 32-01 SCOPE. x]mo8^AXIQ/Ivzvw8NjL{bs(JIeYy!E'b~t_,NO?Ob]/yI(24z\|D/__8yC2|A5ID Q^G{q}I4w4/.jYYL%o#'? Some links may require the Adobe Reader. A mandrel is needed for Flexible Pipe to measure deflection. This website includes hyperlinks to sites neither controlled nor sponsored by VDOT or the Commonwealth of Virginia. materials (soils, aggregate and asphalt) in the field, the Geotechnical firm shall be responsible for the continuous monitoring of the placement and compaction of aggregate base materials, asphalt concrete pavement and the placement and compaction of earthwork and backfill of trenches and structures to ensure compliance with the Specifications. 55 terms. SECTION 02530 STORM DRAINAGE STRUCTURES. Web Policy / Privacy Statement / WAI Compliance / Email Safety / Site Map, APD Instructional and Informational Memoranda, Minimum Requirements for Quality Assurance and Quality Control on Design Build and P3 Projects, AASHTOWare Project Preconstruction (AWP-P) Manual, Construction Instructional and Informational Memoranda, Instructional and Informational Memoranda, Alternative Intersection Informational Design Guides, LD Instructional and Informational Memoranda, PMO Instructional and Informational Memoranda, Pollution Prevention Field Guide for Construction Activities, Roadside Development Report Excel spreadsheet tool, Nutrient Management Plan for Construction Projects, Nutrient Management Plan for Roadside Management, VDOT BMP Maintenance Manual Appendix C - Plant Palette Tables, Materials Certification School Information, Guide to the Traffic Impact Analysis Regulations, Land Development Inspection Documentation Best Practices Manual, OD Instructional and Informational Memoranda, Guide Manual for Causes and Repair of Cracks in Bridge Deck, Traffic Calming Guide for Neighborhood Streets, Manual on Uniform Traffic Control Devices (MUTCD), TED Instructional and Informational Memoranda, VDOT Traffic Operations and Safety Analysis Manual (TOSAM), Instructional and informational memoranda, Manual for the Procurement and Management of Professional Services. %PDF-1.5 % Soils will not need to obtain a VDOT Soils and Aggregate Compaction Certification. When standing water is in pipe foundation area, No. Drop Inlet Backfill Frequency Example: Depth of Backfill = 9 feet Depth of Backfill (ft.) x 12 inches /foot = Depth of backfill in inches 1) 9ft. RIPRAP From Massachusetts Erosion and Sediment Control Guidelines for Urban and Suburban Areas http://www.mass.gov/dep/water/laws/policies. Proper installation is essential to pavement performance as it increases bearing capacity, increases service life and lowers maintenance costs. VDOT states 75 years for higher functional classification roads and 50 years for lower functional classification roads. %PDF-1.5 % Drainage Manual. 2 0 obj The proctored 1 hour, 1-on-1 proficiency test is required to fully complete the VDOT Soils & Aggregate Compaction certification. VDOT Soils and Aggregate Compaction" Download Document. That list has been provided below: To learn about CHANGES up to 2018, please review the following: If youhave more in-depth questions, contact the Materials Certification Schools team: Email:MaterialsCertification@vdot.virginia.gov, Phone: J. R. Noble 804-731-9457 or Scott Manning 804-229-5118. Soil Compaction Handbook ff Soil Compaction Soil compaction is defined as the method of mechanically increasing the density of soil. = 108 in. large void spaces and is loosely compacted. Single Offset: This joint first appeared in the early 1990 s. This style of spigot is much easier to manufacture. Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Instantly. 308 0 obj <>stream Bell and Spigot: A pipe with a flared bell has the outside diameter of the bell larger than the outside diameter of the pipe. There is still an opportunity to test on the last day of class; however there is . If the soils is 100 percent saturated and the voids are full of water and has a high MC. 35 terms. Clearly the pipe needs to function as a conduit, as the whole idea of a pipe is to move liquid in a controlled manner and direction. This zone contains the same select quality backfill material as in the haunch zone for flexible pipe. VDOT Soils and Aggregate Compaction 2016v1.0 Appendix C | 5 back to courses page. small voids and is compact. This section covers excavation and trenching work and shall include the necessary clearing, grubbing, and preparation, BMP C220: Storm Drain Inlet Protection Purpose To prevent coarse sediment from entering drainage systems prior to permanent stabilization of the disturbed area. Figure 4.1: Precast Concrete Pipe 2016v1.0 Chapter 4 1, 2 BASIC PIPE AND SOIL CONCEPTS The type of pipe selected for a particular application depends on many factors. Another option with the flared bell is the Modified Tongue & Groove, or Baby Bell which is a cross between a straight walled T&G and a Standard Bell it does not stick out from the barrel as far as a flared bell. hb```f``2g`2X@Y809wCc cRBTK@S0UYB:d P&t%iV'XhS:Ku.0%7Q4~Av{iL^$x0%Prmc*700x\65;kYw;^(ew5efv] qKZS;\c zr Gg^tL)QMpJhzHrEO *~\,g -. \@%+TB)9~D ru^j:c;1JJ u]5ZU._] ueV^+/5 7) Install the longitudinal perforated pipe at the bottom of the trench without bedding material. San Antonio Water System Standard Specifications for Construction ITEM NO. Concrete Field - Current ACI must be submitted to MaterialsCertification@vdot.virginia.gov ; Soils and Aggregate Compaction - Physical demonstration of proficiency - scheduled by CCWA **New **Central Mix Aggregate Plant - Physical demonstration of proficiency - scheduled by CCWA **New** To learn about CHANGES up to 2018, please review the . Provide, SUBDRAINS AND FOOTING DRAIN COLLECTORS PART 1 - GENERAL 1.01 SECTION INCLUDES A. Subdrains B. Subdrain Cleanouts and Outlets C. Footing Drain Collectors D. Storm Sewer Service and Connections 1.02 DESCRIPTION, Page 1 of 7 STONE STRONG SYSTEMS SPECIFICATIONS FOR PRECAST MODULAR BLOCK RETAINING WALL SYSTEM (revised ) PART 1: GENERAL 1.01 Description A. Grades and certifications are issued within 15-30 business days after the testing date. bc the dense gradation provides more strength by filling voids. 4) Provide a minimum 0.5 to 1% longitudinal slope to enhance positive drainage. Excavate Trench Proper trench widths will allow for proper compaction alongside the pipe. Copyright 2023, VDOT. CON 310 Soils and Aggregates (Soils and Compaction) Homework Name:_____ 1) Why is it important for material testing technicians understand how to perform both the nuclear density test and the sandcone test for compaction testing? This section includes construction of reinforced concrete pipe for storm drainage, culverts, and sanitary sewer, including, BMP: SUBSURFACE DRAIN Definition A perforated conduit such as pipe, tubing or tile installed beneath the ground to intercept and convey ground water. Topics include permits and fees, trench widths, pipe laying, bedding, initial, SECTION 08000 STORM DRAINAGE 08010 DESIGN A. June 21st, 2018 - 2018 Soil Classification and Compaction Proficiency Samples 177 according to the AASHTO or the data sheet Shrinkage Factors of Soils by the . Rigid pipe properly fitted, sealed with rubber, preformed plastic, mastic gaskets Flexible Pipe properly aligned and joined with approved coupling bands Joint Performance Terminology Soil Tight: A joint that is resistant to infiltration of particles larger than those retained on the No. Find the right form for you and fill it out: VisitingProfessorofLaw,StanfordLawSchool(W No results. 1. endstream endobj startxref We will be looking into this with the utmost urgency, The requested file was not found on our document library. = 12 lifts 3) 12 lifts 1 lift (skip first lift) = 11 lifts 4) 11lifts 4 (test every fourth compacted lift) = 2.75, round up to 3 tests in bottom 4 ft. of backfill Top 5 ft. of backfill x 3 lifts/ft. suzanna_gevorgyan. 1.02 REFERENCES, PART 1 - GENERAL Section 02702 SEWER PIPE INSTALLATION AND TESTING 1-1. Web Policy / Privacy Statement / WAI Compliance / Email Safety / Site Map, Click here to access guidelines for the VDOT Materials Certification Schools Program (Section 114, Manual of Instructions), ACI Concrete Field Testing Technician Certification Program Schedule, Nuclear Radiation Certifications can now be obtained online through third party vendors, Pavement Marking (only available as an online course), Asphalt Plant Level 1 - Physical demonstration of proficiency -scheduled byGermanna CC, Asphalt Plant Level 2 - Physical demonstration of proficiency - scheduled by Germanna CC, Asphalt Plant Mix Design - Physical demonstration of proficiency - scheduled by Germanna CC, Concrete Field - Current ACI must be submitted to, Soils and Aggregate Compaction - Physical demonstration of proficiency - scheduled by CCWA.