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A01 STEEL, STAINLESS STEEL AND RELATED ALLOYS A04 IRON CASTINGS A05 METALLIC-COATED IRON AND STEEL PRODUCTS B01 ELECTRICAL CONDUCTORS B05 COPPER AND COPPER ALLOYS B07 LIGHT METALS AND ALLOYS C01 CEMENT C04 VITRIFIED CLAY PIPE C07 LIME AND LIMESTONE C09 CONCRETE AND CONCRETE AGGREGATES C11 GYPSUM AND RELATED BUILDING MATERIALS AND SYSTEMS C12 MORTARS AND GROUTS FOR UNIT MASONRY C13 CONCRETE PIPE C14 GLASS AND GLASS PRODUCTS C15 MANUFACTURED MASONRY UNITS C16 THERMAL INSULATION C17 FIBER-REINFORCED CEMENT PRODUCTS C18 DIMENSION STONE C21 CERAMIC WHITEWARES AND RELATED PRODUCTS C24 BUILDING SEALS AND SEALANTS C27 PRECAST CONCRETE PRODUCTS D01 PAINT AND RELATED COATINGS, MATERIALS, AND APPLICATIONS D04 ROAD AND PAVING MATERIALS D07 WOOD D08 ROOFING AND WATERPROOFING D09 ELECTRICAL AND ELECTRONIC INSULATING MATERIALS D11 RUBBER D14 ADHESIVES D18 SOIL AND ROCK D20 PLASTICS D35 GEOSYNTHETICS E05 FIRE STANDARDS E06 PERFORMANCE OF BUILDINGS E33 BUILDING AND ENVIRONMENTAL ACOUSTICS E36 ACCREDITATION & CERTIFICATION E57 3D IMAGING SYSTEMS E60 SUSTAINABILITY F01 ELECTRONICS F06 RESILIENT FLOOR COVERINGS F13 PEDESTRIAN/WALKWAY SAFETY AND FOOTWEAR F16 FASTENERS F17 PLASTIC PIPING SYSTEMS F33 DETENTION AND CORRECTIONAL FACILITIES F36 TECHNOLOGY AND UNDERGROUND UTILITIES G03 WEATHERING AND DURABILITY C14 GLASS AND GLASS PRODUCTS C21 CERAMIC WHITEWARES AND RELATED PRODUCTS D01 PAINT AND RELATED COATINGS, MATERIALS, AND APPLICATIONS D06 D09 ELECTRICAL AND ELECTRONIC INSULATING MATERIALS D10 PACKAGING D11 RUBBER D12 SOAPS AND OTHER DETERGENTS D13 TEXTILES D14 ADHESIVES D15 ENGINE COOLANTS AND RELATED FLUIDS D20 PLASTICS D21 POLISHES D31 LEATHER E12 COLOR AND APPEARANCE E18 SENSORY EVALUATION E20 TEMPERATURE MEASUREMENT E35 PESTICIDES, ANTIMICROBIALS, AND ALTERNATIVE CONTROL AGENTS E41 LABORATORY APPARATUS E53 ASSET MANAGEMENT E57 3D IMAGING SYSTEMS F02 FLEXIBLE BARRIER PACKAGING F05 BUSINESS IMAGING PRODUCTS F06 RESILIENT FLOOR COVERINGS F08 SPORTS EQUIPMENT, PLAYING SURFACES, AND FACILITIES F09 TIRES F10 LIVESTOCK, MEAT, AND POULTRY EVALUATION SYSTEMS F11 VACUUM CLEANERS F13 PEDESTRIAN/WALKWAY SAFETY AND FOOTWEAR F14 FENCES F15 CONSUMER PRODUCTS F16 FASTENERS F24 AMUSEMENT RIDES AND DEVICES F26 FOOD SERVICE EQUIPMENT F27 SNOW SKIING F37 LIGHT SPORT AIRCRAFT F43 LANGUAGE SERVICES AND PRODUCTS F44 GENERAL AVIATION AIRCRAFT A01 STEEL, STAINLESS STEEL AND RELATED ALLOYS A04 IRON CASTINGS A05 METALLIC-COATED IRON AND STEEL PRODUCTS A06 MAGNETIC PROPERTIES B01 ELECTRICAL CONDUCTORS B02 NONFERROUS METALS AND ALLOYS B05 COPPER AND COPPER ALLOYS B07 LIGHT METALS AND ALLOYS B08 METALLIC AND INORGANIC COATINGS B09 METAL POWDERS AND METAL POWDER PRODUCTS B10 REACTIVE AND REFRACTORY METALS AND ALLOYS C03 CHEMICAL-RESISTANT NONMETALLIC MATERIALS C08 REFRACTORIES C28 ADVANCED CERAMICS D01 PAINT AND RELATED COATINGS, MATERIALS, AND APPLICATIONS D20 PLASTICS D30 COMPOSITE MATERIALS E01 ANALYTICAL CHEMISTRY FOR METALS, ORES, AND RELATED MATERIALS E04 METALLOGRAPHY E07 NONDESTRUCTIVE TESTING E08 FATIGUE AND FRACTURE E12 COLOR AND APPEARANCE E13 MOLECULAR SPECTROSCOPY AND SEPARATION SCIENCE E28 MECHANICAL TESTING E29 PARTICLE AND SPRAY CHARACTERIZATION E37 THERMAL MEASUREMENTS E42 SURFACE ANALYSIS F01 ELECTRONICS F34 ROLLING ELEMENT BEARINGS F40 DECLARABLE SUBSTANCES IN MATERIALS F42 ADDITIVE MANUFACTURING TECHNOLOGIES G01 CORROSION OF METALS G03 WEATHERING AND DURABILITY A01 STEEL, STAINLESS STEEL AND RELATED ALLOYS C01 CEMENT C09 CONCRETE AND CONCRETE AGGREGATES D02 PETROLEUM PRODUCTS, LIQUID FUELS, AND LUBRICANTS D03 GASEOUS FUELS D04 ROAD AND PAVING MATERIALS D15 ENGINE COOLANTS AND RELATED FLUIDS D18 SOIL AND ROCK D24 CARBON BLACK D35 GEOSYNTHETICS E12 COLOR AND APPEARANCE E17 VEHICLE - PAVEMENT SYSTEMS E21 SPACE SIMULATION AND APPLICATIONS OF SPACE TECHNOLOGY E36 ACCREDITATION & CERTIFICATION E57 3D IMAGING SYSTEMS F03 GASKETS F07 AEROSPACE AND AIRCRAFT F09 TIRES F16 FASTENERS F25 SHIPS AND MARINE TECHNOLOGY F37 LIGHT SPORT AIRCRAFT F38 UNMANNED AIRCRAFT SYSTEMS F39 AIRCRAFT SYSTEMS F41 UNMANNED MARITIME VEHICLE SYSTEMS (UMVS) F44 GENERAL AVIATION AIRCRAFT F45 DRIVERLESS AUTOMATIC GUIDED INDUSTRIAL VEHICLES
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InFocus

InFocus

Ready-Mixed Concrete

A New Edition of Manual 49 Covers the ASTM Spec

Contractors use it, manufacturers make it and building codes require it: ready-mixed concrete produced according to ASTM C94/C94M, Specification for Ready-Mixed Concrete.

C94/C94M, first approved in 1935 and recently revised, continues to provide both producers and purchasers with requirements covering the quality of the material, defined as concrete manufactured and delivered to a purchaser in a fresh state. And now, a new, second edition of a book about C94/C94M presents a revised and detailed explanation, with examples, of the standard’s use and application. The book is Manual 49, User’s Guide to ASTM Specification C94/C94M on Ready-Mixed Concrete, co-published by ASTM International and the National Ready Mixed Concrete Association.

For owners, architects, design engineers, contractors, testing agencies and attorneys seeking an in-depth understanding of the specification, the manual offers just that. “This manual is unique in that it takes an existing material specification and discusses the intent and purpose of each clause in it,” says Colin Lobo, Ph.D., P.E., senior vice president of the Engineering Division of the Ready Mixed Concrete Association, Silver Spring, Md., who wrote the manual with D. Gene Daniel, a ready-mixed concrete industry veteran and a 50-year ASTM International member. While the primary audience for the manual might be ready-mixed concrete producers, the book also can assist purchasers and specifiers in understanding what is involved when the specification is cited in contract documents.

“This book addresses responsibilities of stakeholders in a construction project, the production aspects of concrete, issues that need to be managed for conformance with this specification, and the delivery aspect and factors that are controlled by this specification,” says Daniel. Information on general concrete technology is also included.

Manual 49 chapters correspond to the sections of the standard, featuring discussion of the section and accompanying images, photos and numerical examples. The book has been updated to reflect changes in C94/C94M and the standards cited in it since the first edition of the manual. In addition, the chapter addressing statistical concepts for proportioning concrete mixtures for strength and the associated strength acceptance criteria used in project specifications has been extended.

The specification is the direct responsibility of 100-member Subcommittee C09.40 on Ready-Mixed Concrete, a part of Committee C09 on Concrete and Concrete Aggregates. And the manual — like the specification — takes into account technological changes in the industry and its greater emphasis on sustainable construction, according to the authors.

Specification C94/C94M provides requirements for the component materials of ready-mixed concrete, noting that the purchaser’s specification governs if requirements differ. The standard also describes needed ordering and technical information, as well as delivery, inspection and sampling.

Manual 49, User’s Guide to ASTM Specification C94/C94M on Ready-Mixed Concrete, the authors say, is intended to be an essential reference for concrete construction industry stakeholders on the production and delivery of ready-mixed concrete.

This article appears in the issue of Standardization News.