R42 港口通信与导航 标准查询与下载

AASHTO M 315-2007 使用橡胶垫圈的混凝土管和人孔用接头规格(米制)的标准规范

Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets

Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets

AASHTO M 315M-2007 米制圆形混凝土污水管和函管接头用橡胶垫圈的标准规范

Standard Specification for Joints for Circular Concrete sewer and culvert pipe, Using Rubber Gaskets [Metric]

Standard Specification for Joints for Circular Concrete sewer and culvert pipe, Using Rubber Gaskets [Metric]

AASHTO T 185-2007 硅酸盐水泥早硬的试验方法(灰浆法)

This standard does not purport to address all of the safety concerns, if any, associated with its use.It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory

Standard Method of Test for Early Stiffening of Hydraulic Cement (Mortar Method)

AASHTO M 225M_M 225-2007 混凝土钢筋用变形钢丝规格的标准规范

This specification covers deformed steel wire which has been cold worked by drawing, rolling, or both drawing and rolling to be used as produced, or in fabricated form, for the reinforcement of concrete in sizes having nominal cross-sectional areas not

Standard Specification for Steel Wire, Deformed, for Concrete Reinforcement

AASHTO R 39-2007 实验室制作及固化混凝土试样规程

This practice covers procedures for making and curing test specimens of concrete in the laboratory under accurate control of materials and test conditions using concrete that can be consolidated by rodding or vibration as described herein. This practic

Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory

AASHTO M 86M_M 86-2007 无钢筋的混凝土污水管、暴雨排水管和涵管规格的标准规范

This specification covers nonreinforced concrete pipe intended to be used for the conveyance of sewage, industrial wastes, storm water, and for the construction of culverts.

Standard Specification for Nonreinforced Concrete Sewer, Storm Drain, and Culvert Pipe

AASHTO PP 50-2007 惯性剖面仪操作和评价路面断面标准

This practice describes the procedure for operating and verifying the calibration of an inertial profiler. This practice is meant to be performed as a Quality Assurance (QA) test for use with the appropriate smoothness specification for paving operation

Standard Practice for Operating Inertial Profilers and Evaluating Pavement Profiles

AASHTO M 144-2007 氯化钙的标准规范

Standard Specification for Calcium Chloride

Standard Specification for Calcium Chloride

AASHTO RSDG CHAPTER 6-2006 道路侧面设计指南第6章更新

Median barriers are longitudinal barriers that are most commonly used to separate opposing traffic on a divided highway. They may also be used along heavily traveled roadways to separate through traffic from local traffic or to separate high occupancy

Roadside Design Guide Chapter Six Update Revision 3

AASHTO MSD-2006 保持保护美国运算系统的站略方向

Deadly and unprecedented terror attacks on the transportation infrastructure in the United States and Western Europe, including bombings on London’s subway system and Madrid’s commuter rail network, as well as the World Trade Center/Pentagon attacks, ha

Maintaining Strategic Direction for Protecting America's Transportation System Revision 1

AASHTO T 113-2006 集料中轻质片状物的测试方法

This method covers the determination of the percentage of lightweight pieces in aggregate by means of sink-float separation in a heavy liquid of suitable specific gravity.

Standard Method of Test for Lightweight Pieces in Aggregate

AASHTO T 100-2006 土壤比重的试验

1.1. This method covers determination of the specific gravity of soils by means of a pycnometer. When the soil is composed of particles larger than the 4.75-mm (No. 4) sieve, the method outlined in T 85 shall be followed. When the soil is composed of pa

Standard Method of Test for Specific Gravity of Soils

AASHTO M 153-2006 混凝土铺面和结构建筑用预制微孔橡胶与软木伸缩缝填料的标准规范

This specification covers preformed expansion joint fillers of the following four types for use in concrete, brick, or stone construction:

Standard Specification for Preformed Sponge Rubber and Cork Expansion Joint Fillers for Concrete Paving and Structural Construction

AASHTO M 251-2006 叠层弹性桥梁轴承的标准规范

This specification covers the material requirements for plain and laminated elastomeric bridge bearings. Elastomeric bearings furnished under this specification shall adequately provide for thermal expansion and contraction, rotation, camber changes, a

Standard Specification for Plain and Laminated Elastomeric Bridge Bearings

AASHTO PP 54-2006 混凝土试样跟踪养护

This recommended practice covers procedures for making and curing cylindrical concrete specimens at the same temperature as that measured in a concrete member.

Match Curing of Concrete Test Specimens

AASHTO M 277-2006 活动桥用钢丝绳和套管的标准规范

This specification covers steel wire rope for use in movable bridges. Both operating and counterweight ropes are included in nominal 6 × 19 rope construction. Suitable sockets are also included.

Standard Specification for Wire Rope and Sockets for Movable Bridges

AASHTO R 42-2006 热混沥青(HMA)质量保证计划的建立

This standard practice presents specific details necessary to effectively control the production and placement of Hot-Mix Asphalt (HMA).

Standard Practice for Developing a Quality Assurance Plan for Hot-Mix Asphalt (HMA)

AASHTO M 175M_M 175-2005 多孔混凝土管的标准规范

Standard Specification for Perforated Concrete Pipe

Standard Specification for Perforated Concrete Pipe

AASHTO T 231-2005 压顶圆柱型混凝土试样的测试方法

1.1. This method covers apparatus, materials, and procedures for capping freshly molded concrete cylinders with neat cement and hardened cylinders and drilled concrete cores with high-strength gypsum plaster or sulfur mortar.

Standard Method of Test for Capping Cylindrical Concrete Specimens

AASHTO T 21-2005 混凝土用细集料中有机杂质含量的测试方法

This specification covers welded wire reinforcement made from cold-worked drawn or rolled deformed wire, or a combination of deformed and non-deformed wires, to be used for the reinforcement of concrete.

Standard Method of Test for Organic Impurities in Fine Aggregates for Concrete