ASTM International’s forthcoming 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 beyond what would be typical for steel reinforced concrete drainage products.
“The standard ensures the engineer that the producer of synthetic fiber reinforced concrete pipe has performed due diligence in manufacturing and testing to ensure a strong and long-term product,” affirms C13 member Ali Abolmaali of the University of Texas. Engineers who work in the drainage industry, along with structure or system producers are the most likely C1818 users, he adds. The standard will be available from ASTM Customer Relations, 877/909-2786; [email protected]
ASTM International’s 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. ASTM Subcommittee E06.21 on Serviceability members envision fast and precise surface inspection on a wide range of cement-based building materials, especially concrete flooring and decorative surfaces.
The technology WK49335 references will be used to provide an accurate assessment in concrete surface irregularities and serviceability. The proposed standard will be among agenda items on the next E06.21 meeting, scheduled as part of ASTM E06 on Performance of Buildings Committee Week, April 10-13 in San Antonio. Contacts: Andrew Bowman, Adaptive Concrete Innovations, 419/408-5906, [email protected], technical; Stephen Mawn, 610/832-9726, [email protected], staff liaison.
CAST-IN-PLACE CULVERT COLLECTS DBIA HONORS
Wantman Group, Inc. took the Design-Build Institute of America–Florida Region’s Transportation Award for a project under Florida Department of Transportation District 2, Emergency Repairs at Plantation Oaks Boulevard over North Prong Double Branch, Clay County. FDOT expedited the design-build, low-bid contract after routine inspection of an existing structure revealed a significant safety concern that resulted in the complete closure of the roadway and sidewalks—blocking access to Oakleaf High School and Oakleaf Junior High School.
The Superior Construction and Wantman Group team cited innovation, plus significant cost and time savings, by replacing the existing box culvert with a triple 10- x 6-ft. barrel, cast-in-place structure. The solution to locate the structure in-kind allowed the main two permitting agencies to approve applications within days of their submittal, positioning the design-build team to fast track work.
With eight offices throughout Florida, Jacksonville-based Wantman Group specializes in civil, municipal subsurface utility and transportation engineering; surveying and mapping; water resources; landscape architecture; environmental sciences; and, land planning.