New Committee Project Fund Publications Three new publications are available as deliverables from research projects supported by the DFI Committee Project Fund and in- kind contributions. The DFI Board of Trustees established the DFI Committee Project Fund in 2011 to fund DFI Technical Committee projects that advance the state of practice and understanding of deep foundations and produce a usable deliverable. The fund has generated great interest, discussion and activity in the committees. Funding has supported projects proposed by several of DFI’s 24 technical committees, and deliverables include laboratory/field testing, installation/demonstration programs, analytical tools, design guides, journal articles, project reports, databases and surveys. All projects involved significant in-kind contributions or joint funding with allied associations, furthering DFI’s industry- wide collaborative efforts. The following publications are available at no cost at Guide to Tremie Concrete for Deep Foundations, 2 Edition EFFC and DFI Concrete Task Group PDF, 83 pages, Illustrated The primary purpose of this report is to provide guidance for characterization related to performance, mix design process, and methods used to test fresh concrete. The principles of this guide www.dfi.org, under ‘Publications/Project Fund Deliverables’. nd apply to tremie concrete for deep foundations but may also be applied for other forms of deep foundations (e.g., continuous flight auger piling). The guide addresses de s i gn cons ide r a t ions including concrete rheology, mix design, reinforcement detailing, concrete cover, and good pract ice rules for placement . A review of methods to test the as-built elements is presented together with advice on the identification and interpretation of the results. Influences of Mixture Proportions and Test Conditions on the Strength and Stiffness of Wet-Mixed Soil and Cement DFI Soil Mixing Committee, Roberto Nevárez-Garibaldi, Dale Miller and George Filz, Virginia Tech PDF, 405 pages, Illustrated Establishing a suitable mix design is important to provide the engineering property values necessary for adequate performance of a deep mixing support system. The mix design process often includes a laboratory mixing program to identify suitable binder types and appropriate mixture proportions. The objectives of this research were to investigate: (1) the influences of laboratory procedures and test conditions on measured property values of cement-treated soil, (2) relationships between engineering property values, such as the relationship between unconfined compressive strength and Young’s modulus, and (3) the influence of mix design proportions on cured strength and on mixture consistency immediately after mixing. ACIP Pile Installation, Installation Monitoring, Full-scale Load Testing and Extraction Program DFI Augered Cast-In-Place Pile Committee, Dr. Antonio Marinucci, MBA, P.E., and W. Morgan NeSmith, Jr., P.E. PDF, 138 pages, Illustrated DFI’s Augered Cast-In-Place (ACIP) Pile Committee performed a foundation installation, monitoring, performance and extraction program for ACIP piles in the fall of 2016. The purpose of the project was to demonstrate a fully monitored installation of instrumented 18 in (457 mm) and 24 in (610 mm) diameter ACIP piles, including automated monitoring equipment (AME); post-installation thermal integrity profiling (TIP) measurements; compression, tension, and lateral load testing (including monitoring of strain gages embedded along the compression pile shaft); and post-testing extraction of an installed pile for visual inspection. 56 • DEEP FOUNDATIONS • JULY/AUG 2018
