Creep and Shrinkage of Nonproprietary Ultra-High-Performance Concrete
2024; Precast/Prestressed Concrete Institute; Volume: 69; Issue: 5 Linguagem: Inglês
10.15554/pcij69.5-02
ISSN0887-9672
AutoresGarrett Tatum, Lautaro Martinez, Natassia Brenkus,
Tópico(s)Innovative concrete reinforcement materials
ResumoThis paper presents the results of the experimental evaluation of four nonproprietary ultra-high-perfor¬mance concrete (UHPC) mixture proportions current¬ly being used for industrial applications by various precast concrete producers across the United States and Canada. The main objective of this research was to acquire data about the effects that creep and shrinkage phenomena produced with UHPC materials. Shrinkage was assessed by the ASTM C157 testing method modified by ASTM C1865 and ASTM C1698. Creep was evaluated by the ASTM C512 testing method modified by ASTM C1856. Results for creep and shrinkage strains and creep coefficient are pre¬sented and discussed. Comparisons with conventional concrete are also made. This detailed characterization of creep and shrinkage properties of the nonproprietary UHPC mixture proportions advances the understanding of UHPC materials and phenomena and offers useful information for further research on applications of UHPC for prestressed concrete structural components.
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