This special publication is a compilation of existing articles on various structural strengthening, stiffening, and stabilization topics, including external bonded reinforcement, external post-tensioning, internal post-tensioning, section enlargement and overlays, supplemental framing and span shortening, and strengthening and stabilization of masonry structures. The purpose is to provide engineers and contractors with a single-source overview of the various materials and techniques available to solve strengthening, stiffening, and stabilization problems. The wealth of information provided should provide invaluable “food for thought” to facilitate the strengthening, stiffening, and stabilization design process.
120 General - Environmental Health and Safety Committee
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Este Lineamiento pretende ser una herramienta usada para educar a supervisores, trabajadores del oficio, propietarios e ingenieros sobre las prácticas de trabajo seguras en la industria de reparación de concreto. El lineamiento se ha desarrollado para ser una herramienta visual que representa el desempeño seguro de tareas específicas y los peligros asociados con ellas. Los requerimientos descritos aquí se basan en los estándares de OSHA más recientes y pretenden proporcionar una guía y capacitación en la planeación y ejecución de proyectos de reparación y restauración.
An aid for the selection process, this guideline describes several methods of strengthening structures including externally bonded systems, post-tensioning, section enlargement and supplemental supports (formerly no. 03742).
This updated and revised guideline will assist contractors, NDE service providers, owners, design professionals, and material suppliers in the selection of nondestructive evaluation (NDE) methods for evaluating the condition of concrete structures. NDE methods can be very useful to perform a condition assessment prior to repairs and to provide quality control and assurance of repairs and long-term performance monitoring. Considerations in planning and executing an NDE program, including correlating with destructive methods, are discussed in the guideline. Guidance, including a brief synopsis of each method, is presented for selecting which NDE methods are appropriate for the concrete property/condition being assessed.
Provides information and guidance for the selection, evaluation, and use of surface applied corrosion inhibitors (SACI) for corrosion mitigation and supplement sound judgement by engineers, consultants, or others specializing in the repair of reinforced concrete structures experiencing corrosion induced damage. Understanding the existing concrete conditions and corrosion levels in the structure, the function and limitations of SACI materials, requirements for proper application and quality assurance/control during application, and evaluation and monitoring the performance are addressed.
This guideline is intended to provide information on electrochemical techniques used to mitigate the corrosion of steel in atmospherically exposed concrete structures. The information presented is based on testing and the experience of owners, engineers, contractors, and suppliers. This guideline includes information on impressed current and galvanic cathodic protection, electrochemical chloride extraction, and realkalization.
This guideline is intended to provide an introduction to hydrodemolition for concrete removal and surface preparation, the benefits and limitations of using hydrodemolition, and an understanding of other aspects to be addressed when incorporating hydrodemolition into a repair project. The guideline provides a description of the equipment, applications, safety procedures, and methods of water control and cleanup.
THE RIGHT TOOL AND EQUIPMENT FOR THE JOB. The intent of this document is not to advocate one type of tool or piece of equipment versus another, or discuss tool/equipment efficiency and other properties, but simply to provide a single-source common guide that can be used in the trade when describing and specifying concrete repair tools and equipment. Specifying tools and equipment for mixing and placing concrete repair materials is extremely difficult because the industry uses multiple names for the same tools/equipment and the same names for different tools/equipment. The Problem: Different types of tools and equipment can produce different consistencies and properties in concrete repair products. The Solution: ICRI Technical Guideline 320.5R-2014 will help ensure that the appropriate tools and equipment are properly described and specified.
This guide provides a recommended method of evaluating the adequacy of concrete surface preparation and tensile bond strength of cementitious and polymer concrete surface repairs using the in-situ drilled core tensile pulloff test. The guide outlines equipment and material requirements, the test procedure, reporting, and acceptance criteria. This update also includes failure modes for concrete substrate tests.
This guideline is intended to provide information for the selection and application of materials
for fluid-applied waterproofing systems to concrete for horizontal pedestrian and vehicular
traffic surfaces.
Concrete is subject to deterioration by a variety of mechanisms. Properly selected and applied
traffic membrane systems can protect concrete from deterioration caused by abrasion, moisture
intrusion, environmental forces (freezing-and-thawing cycling), and chemical attack. This
guideline provides information on the common service conditions, basic review of the properties
of concrete, surface preparation, system designs, and materials used for traffic membranes.