Sources: U.S. Concrete Inc., Euless, Texas; CP staff
U.S. Concrete has closed on the U.S. Virgin Islands’ principal ready mixed and aggregate source, Heavy Materials, LLC, plus the assets of peer operator Spartan Concrete Products, LLC. Their combined operations create a stronger vertically integrated platform to serve an extensive base of customers throughout the Virgin Islands and neighboring Caribbean islands.
Source: ASTM International, West Conshohocken, Pa.
The proposed WK49335, Test Method for Concrete Micro Surface Texture, describes the use of a contact stylus instrument, or profilometer, and reliable data indexes to measure and quantify a slab or structure’s smoothness/roughness value. Members of ASTM Subcommittee E06.21 on Serviceability envision fast and precise surface inspection on a wide range of cement-based building materials, especially concrete flooring and decorative surfaces.
Sources: National Concrete Masonry Association, Herndon, Va.; CP staff
The latest addition to the NCMA TEK library covering concrete masonry building or hardscape unit design and construction is an Excel spreadsheet companion to documents on single- or multi-wythe wall thermal values, and Thermal Catalog for Concrete Masonry Assemblies.
Sources: Messe Muenchen, bauma Exhibitions Group, Munich; CP staff
The next staging of the world’s largest trade fair, by space, and focal point of the global construction and mining equipment, and building material machinery business will see exhibits spread over 605,000 square meters—just under 7 million sq. ft.
Sources: International Code Council (ICC), Country Club Hills, Ill.; Portland Cement Association, Skokie, Ill.; CP staff
The American Wood Council (AWC) has requested that ICC establish the Ad Hoc Committee on Tall Wood Buildings, which would investigate the feasibility of cross laminated timber and structural composite lumber for construction exceeding current International Building Code height limitations.
Sources: ASTM International, West Conshocken, Pa.; CP staff
The forthcoming ASTM C1818, Specification for Rigid Synthetic Fiber Reinforced Concrete Culvert, Storm Drain and Sewer Pipe, describes a companion approach to conventional reinforcement in at- or below-grade structures. Developed by ASTM C13 Committee on Concrete Pipe, it recognizes time-dependent properties that require testing of synthetic fiber above and beyond what would be typical for steel reinforced concrete drainage products.