Advanced Cementitious Materials for Blast Protection
Abstract
Advanced cementitious materials, commonly referred to as ultra-high performance concretes (UHPCs), are developing rapidly and show promise for civil infrastructure and protective construction applications. Structures exposed to blasts experience strain rates on the order of 10 exponent 2 s exponent -1 or more. While a great deal of research has been published on the durability and the static properties of UHPC, there is less information on its dynamic properties. The purpose of this report is to (1) compile existing dynamic property data including compressive strength, tensile strength, elastic modulus, and energy absorption for six proprietary and research UHPCs and (2) implement a single-degree-of-freedom (SDOF) model for axisymmetric UHPC panels under blast loading as a means of comparing the UHPCs. Although simplified, the model allows identification of key material properties and promising materials for physical testing. Model results indicate that tensile strength has the greatest effect on panel deflection, with unit weight and elastic modulus having a moderate effect. CEMTEC multiscale (registered trademark) deflected least in the simulation. Lafarge Ductal, a commonly available UHPC in North America, performed in the middle of the five UHPCs considered.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 13, 2023
- Accession Number
- AD1199012
Entities
People
- Andrew B. Groeneveld
- C. K. Crane
Organizations
- Engineer Research and Development Center