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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > Collection Online > Collection Search
The worldwide trend in construction is toward mechanization and automation. This trend has led to continued rapid progress of mechanized tunneling. Advantages over conventional tunnel construction methods include, but are not limited to, occupational health and safety, faster advance rates, and reducing construction labor requirements. Mechanized tunneling in soft ground using tunnel boring machines is often associated with installing precast concrete segmental lining. However, very little industry-wide guidance has been provided by practice and code organizations. This document provides guidelines for precast concrete tunnel segments, including the most recent developments and practical experience, in addition to information on all aspects of design and construction. These guidelines are based on the knowledge and the experience gained on numerous precast tunnel projects in the United States, and available national and international guidelines often used as industry references.
The Collection Online includes all new committee standards and reports released throughout the year. The most recently added include:
PRC-546.3-23: Materials Selection for Concrete Repair—Guide
PRC-546-23: Concrete Repair—Guide
PRC-228.4-23: Visual Condition Survey of Concrete—Guide
SPEC-544.12-23: Performance-Based Fiber-Reinforced Concrete for Slabs-on-Ground and Overlays—Specification
SPEC-548.10-22: Type Methyl Methacrylate Slurry (MMS) Polymer Overlays for Bridge and Parking Garage Deck—Specification
CODE-437.2-22: Load Testing of Concrete Structures - Code and Commentary (SI Units)
PRC-440.2-23: Design and Construction of Externally Bonded Fiber-Reinforced Polymer (FRP) Systems for Strengthening Concrete Structures—Guide
PRC-225-23 Guide to the Selection and Use of Hydraulic Cements
350-20: Code Requirements for Environmental Engineering Concrete Structures (350-20) and Commentary (350R-20) (SI Units)
CODE-307-23: Requirements for Reinforced Concrete Chimneys—Code and Commentary