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  • 混凝土抗冻融性的标准试验方法(ASTM名称:C666/C666M-15)

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO T 161-21

    发布时间:

    2021-01-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This method covers the determination of the resistance of concrete specimens to rapidly repeated cycles of freezing and thawing in the laboratory by two different procedures: Procedure A, Rapid Freezing and Thawing in Water, and Procedure B, Rapid Freezing in Air and Thawing in Water. Both procedures are intended for use in determining the effects of variations in the properties of concrete on the resistance of the concrete to the freezing and thawing cycles specified in the particular procedure. Neither procedure is intended to provide a quantitative measure of the length of service that may be expected from a specific type of concrete.All material in this test method not specifically designated as belonging to Procedure A or Procedure B applies to either procedure.The values stated in SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
  • 道路照明设计指南 第7版

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    现行

    标准号:

    AASHTO GL-7

    发布时间:

    2018-01-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This is the seventh edition of the AASHTO Roadway Lighting Design Guide. It has been revised to reflect current practices in roadway lighting. This guide provides a general overview of lighting systems from the point-of-view of state transportation departments and recommends minimum design parameters. It may be used by agencies to warrant and design roadway lighting systems and can be incorporated into their own roadway lighting policies. Agency-specific policy may also include types of lighting equipment and technologies, lighting calculation preferences, or maintenance issues.
  • AASHTO LRFD《GFRP钢筋混凝土桥梁设计指南规范》 第二版 包括2019年7月和2020年2月勘误表

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    现行

    标准号:

    AASHTO GFRP-2B

    发布时间:

    2018-12-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: These guide specifications offer a description of the unique material properties of glass fiber reinforced polymer (GFRP) composite materials, as well as provisions for the design and construction of concrete bridge decks and railings reinforced with GFRP reinforcing bars. This revised edition includes information on the advancements in material specifications, and new knowledge and field experiences beyond bridge decks and traffic railings.Some of the major updates in this new edition include a title change from the 2009 first edition,AASHTO LRFD Bridge Design Guide Specification for GFRP-Reinforced Concrete Bridge Decks and Traffic Railings, to acknowledge the inclusion of information beyond bridge decks and traffic railings; greater consistency with theAASHTO LRFD Bridge Design Specifications, 8th Edition; consideration of flexural members, such as girders and bent caps, not included in first edition; consideration of substructure and foundation elements along with compression members; differentiation between the fatigue and creep limit states; and revised shear design methodology.
  • 混凝土抗冻融性的标准试验方法(ASTM名称:C666/C666M-15)

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO T 161-17

    发布时间:

    2017-04-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This method covers the determination of the resistance of concrete specimens to rapidly repeated cycles of freezing and thawing in the laboratory by two different procedures: Procedure A, Rapid Freezing and Thawing in Water, and Procedure B, Rapid Freezing in Air and Thawing in Water. Both procedures are intended for use in determining the effects of variations in the properties of concrete on the resistance of the concrete to the freezing and thawing cycles specified in the particular procedure. Neither procedure is intended to provide a quantitative measure of the length of service that may be expected from a specific type of concrete.All material in this test method not specifically designated as belonging to Procedure A or Procedure B applies to either procedure.The values stated in SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
  • 机动车辆最大尺寸和重量指南 第5版

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    现行

    标准号:

    AASHTO GSW-5

    发布时间:

    2016-08-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This guide provides information for states and commercial carriers that can be used in connection with vehicle size and weight issues and permit practices directed towards improving safety, managing highway and bridge infrastructure, and streamlining regulatory processes. It contains definitions of commonly-used terms, descriptions of vehicles in regular operation, dimension and weight limits, and an overview of the permitting process for overweight, oversize vehicles. It also provides an explanation of the rules and processes related to the movement of military vehicles.
  • 企业风险管理指南

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    现行

    标准号:

    AASHTO ERM-1

    发布时间:

    2016-11-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This guide provides a comprehensive framework to identify and manage risk for state departments of transportation, as well as establish and maintain an enterprise risk management program. It includes extensive summaries of how risk management is being applied nationally and internationally to typical transportation program areas.
  • 从业人员手册#17:遵守《濒危物种法》第7节中有关运输项目的规定

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    现行

    标准号:

    AASHTO PH17-1

    发布时间:

    2016-11-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This Handbook provides an overview of Section 7 consultation under the Endangered Species Act (ESA) and provides advice on carrying out Section 7 consultation for transportation projects. This handbook focuses on the consultation process primarily from the perspective of the Federal action agency and the applicant.
  • 从沥青混合料中定量提取和回收沥青粘合剂的标准试验方法

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO T 319-14

    发布时间:

    2014-08-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This standard describes a procedure for the extraction and recovery of asphalt binder from asphalt mixtures [both hot-mix asphalt (HMA) and reclaimed asphalt pavement (RAP)] that have a minimal effect on the physical and chemical properties of the asphalt binder recovered. This standard is intended for use when the physical or chemical properties, or both, of the recovered asphalt binder are to be determined. It can also be used to determine the quantity of asphalt binder in the HMA or RAP. Recovered aggregate may be used for sieve analysis.This method is applicable to HMA sampled from the pavement, RAP sampled from the pavement or stockpile, HMA plant production, or laboratory fabricated HMA.
  • 动态称重(WIM)系统中路面平整度的标准规范

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO MP 14-12

    发布时间:

    2012-08-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: Weigh-in-motion (WIM) is the process of measuring the dynamic forces of moving vehicle tires on pavements and estimating the corresponding tire loads of the static vehicle. The dynamic forces of moving vehicles include the effects of road surface roughness and are modified by vehicle characteristics such as spring and unspring mass, tire inflation pressures, out-of-round or dynamically unbalanced wheels and tires, suspension damping, and the vehicles’ aerodynamic characteristics. The smoothness of the pavement surface in WIM systems directly affects the scale’s ability to accurately estimate static loads from measured dynamic forces. Lack of smoothness creates difficulties in calibrating WIM equipment and may cause poor results from subsequent vehicle weight data collection efforts.WIM system pavement smoothness is characterized by the output of a profiler in compliance with the Operator Certification section of AASHTO R 56, collecting data at 25-mm [1-in.] or less intervals. The data produced by such a profiler will approximate the actual perpendicular deviation of the pavement surface from an established horizontal reference parallel to the lane direction in the wheel tracks.The specification requires field collection of pavement profile information of a WIM system or of a candidate WIM site. Computer software is then used to calculate a roughness index that has been correlated to distributions of tandem axle and gross vehicle weight error levels through extensive simulations of truck dynamic loading over measured profiles. Acceptable index levels are based on ensuring to a 95 percent level of confidence that the WIM system roughness will not produce errors that exceed the tolerance level limits recommended by ASTM E1318.The profiler test vehicle, as well as all attachments to it, shall comply with all applicable state and federal laws. Necessary precautions imposed by laws and regulations, as well as vehicle manufacturers, shall be taken to ensure the safety of operating personnel and other traffic.
  • 闪点低于93摄氏度(200华氏度)的材料用带标签的开杯装置闪点的标准试验方法

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO T 79-12(2020)

    发布时间:

    2012-08-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This method covers the procedure for the determination of flash points by the tag open-cup apparatus of cutback asphalts having flash points of less than 93°C (200°F).Note—Specifications commonly designate the Cleveland Open-Cup method (AASHTO T 48) for asphalt binders and cutback asphalts having flash points above 79.5°C (175°F).
  • 从业人员手册#14:在交通项目决策中应用第404(b)(1)节指南 第一版

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO PH14-1

    发布时间:

    2011-09-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This handbook is intended to assist practitioners in applying the Section 404(b)(1) Guidelines in the environmental review process for surface transportation projects. It focuses on highway and transit projects that require an individual Section 404 permit under the Clean Water Act and involve preparation of an environmental impact statement or environmental assessment under the National Environmental Policy Act.
  • 通用碳素铸钢件标准规范

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO M 103M/M 103-11

    发布时间:

    2011-01-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This specification covers carbon steel castings for general applications that require up to 485 MPa [70 ksi] minimum tensile strength.The grades covered by this specification represent materials that are suitable for assembly with other steel castings or wrought steel parts by fusion welding. It is not intended to imply that all these grades possess the same degree of weldability or that the same welding techniques can be used on all castings. It is the responsibility of the purchaser to establish for himself a suitable welding technique.Several grades and two classes of steel castings are covered. The grade and class desired shall be specified by the purchaser.This specification is applicable to orders in either SI units (as M 103M) or inch-pound units (as M 103). The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. Inch-pound units are shown in brackets in the text for clarity, but they are the applicable values when the material is ordered to M 103.
  • 从业人员手册#12:在运输机构制定和实施雨水管理计划

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    现行

    标准号:

    AASHTO PH13-1

    发布时间:

    2011-09-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: The purpose of this handbook is to assist transportation agencies in developing and/or implementing a stormwater managementprogram that satisfies the requirements of the Clean Water Act (CWA). For agencies that already have a functioningstormwater management program, this handbook provides useful tips and transportation specific references to assist programimplementation.Throughout this handbook, the terms "stormwater management program" and "stormwater management plan" (SWMP) areused. The term "stormwater management program" refers to the entire program implemented by a transportation agency tocomply with their National Pollutant Discharge Elimination System (NPDES) permit(s) for stormwater discharges. The term"SWMP" refers to a specific document that describes the framework for implementation of the stormwater management programfor the agency.
  • 用核方法(浅层)测定土壤和土壤集料的就地密度和含水量的标准规范

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO T 310-10

    发布时间:

    2010-11-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This test method describes the procedure for determining the in-place density and moisture of soil and soil-aggregate by use of nuclear gauge. The density of the material may be determined by either direct transmission, backscatter, or backscatter/air-gap ratio method. The moisture of the material is determined only from measurements taken at the surface of the soil (i.e., backscatter).Density—The total or wet density of soil and soil-rock mixtures is determined by the attenuation of gamma radiation where the source or detector is placed at a known depth up to 300 mm (12 in.) while the detector(s) or source remains on the surface (Direct Transmission Method) or the source and detector(s) remain on the surface (Backscatter Method).The density in mass per unit volume of the material under test is determined by comparing the detected rate of gamma radiation with previously established calibration data.Moisture—The moisture content of the soil and soil-rock mixtures is determined by thermalization or slowing of fast neutrons where the neutron source and the thermal neutron detector both remain at the surface.The water content in mass per unit volume of the material under test is determined by comparing the detection rate of thermalized or slow neutrons with previously established calibration data.
  • 新拌水硬性水泥混凝土温度的标准试验方法(ASTM名称:C 1064/C 1064M-05)

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO T 309M/T 309-10

    发布时间:

    2010-11-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: AASHTO T 309M/T 309-10 is identical to ASTM C1064/C1064M-05 except for the provisions specified in this document.
  • 项目和薪水

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    现行

    标准号:

    AASHTO ARRA-1

    发布时间:

    2010-01-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: On February 17, 2009, President Barack Obama signed the American Reinvestment and RecoveryAct into law, releasing some $48 billion to jumpstart the nation's flagging economyand rebuild our aging transportation systems. One year later, a discussion of how state transportation departments have set an amazing record of speed and efficiency, providing tens of thousands of jobsand billions in paychecks to American workers.
  • 公路安全手册 第一版 2014年增补版和2016年勘误表

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    现行

    标准号:

    AASHTO HSM-1

    发布时间:

    2010-08-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: Includes the 2014 Supplement and 2016 ErrataThe Highway Safety Manual was developed to help measurably reduce the frequency and severity of crashes on American roadways by providing tools for considering safety in the project development process. The HSM assists practitioners in selecting countermeasures and prioritizing projects, comparing alternatives, and quantifying and predicting the safety performance of roadway elements considered in planning, design, construction, maintenance, and operation.
  • 混凝土抗弯强度的标准试验方法(使用中心点荷载的简支梁)(ASTM名称:C 293-08)

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO T 177-10(2015)

    发布时间:

    2010-11-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This method covers the determination of the flexural strength of small-sized concrete specimens by the use of a simple beam with center-point loading. It is not intended to be used as an alternative to T 97.
  • AASHTO LRFD桥梁施工规范 第3版 包括2010年中期修订I、2011年中期修订I2、2012年中期修订I3、2014年中期修订I4、2015年中期修订I5、2016年中期修订I6

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO LRFDCONS-3-M

    发布时间:

    2010-01-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: Includes Interim revisions for 2010, 2011, 2012, 2014, 2015 and 2016.This new edition has been revised to be consistent with its companion, the recently updated AASHTO LRFD Bridge Design Specifications. Among the revisions are improved testing and acceptance criteria, updated material references, and recommended guidelines for construction loads.
  • 价值工程指南 第3版

    发布单位:

    美国-美国公路与运输员工协会(US-AASHTO)

    标准状态:

    历史

    标准号:

    AASHTO VE-3

    发布时间:

    2010-03-01

    中标分类:

    -

    国标分类:

    -

    实施时间:
    摘要: This document provides guidelines for establishing and administering VE programs. It is the intent of these guidelines to assist state DOTs in developing successful VE programs, to promote the acceptance and use of VE, and assure compliance with federal VE requirements, while allowing maximum flexibility to each state. To improve design excellence and achieve efficient cost and quality control, it is AASHTO's position that each state should establish an ongoing VE program.
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