Ultra High Performance Concrete (UHPC), along with parametric modeling, rapid prototyping, CNC fabrication, and automated manufacturing are coming together to provide unprecedented …

The mixing efficiency and mixing performance depends on: the type and speed of the mixer; requested mixing time by the precaster; and the required UHPC volume for precast

TOPSIS offers a structured and objective framework for ranking UHPC mix alternatives by synthesizing diverse performance indicators into a single, unified score.

Aug 4, 2016 · The packing density and ideal particle gradation models presented above provided a basis to develop an approach to mix proportioning of UHPC. A flowchart for the approach to …

Figure 1 Flow chart for the mixture design of UHPC.. Related Figures (1) arrow_back_ios

This video demonstrates step-by-step procedure for preparing UHPC by mixing the constituents at lab scale in a small Hobart mixer. A similar mixing procedure...

Based on the determination of the highest self-flowability and the lowest plastic viscosity for concretes the optimum mix proportions for UHPCs were recognized corresponding to the …

Jun 1, 2023 · This review compared and analyzed the characteristics of different packing theories, comprehensively described the functions of various raw materials and their impact on the …

Applying the basic princi-ples for a UHPC (Richard & Cheyrezi 1995), and theoretical models as for instance the solid suspen-sion model (De Larrard & Sedran 1994), the second type uses …

Feb 28, 2016 · With the shaft sitting horizontal the arms and paddles sheer through the concrete vertically. This moves the materials from the top to the bottom of the mix, and from the bottom …

Aug 23, 2013 · Mixing times for UHPC range from 7 to 18 minutes, which are much longer than those of conventional concretes. (41,42) This impedes continuous production processes and …

developed a UHPC using the flow table test as an indirect indicator of particle packing density of the UHPC paste, followed by the introduced aggregates and fibers. Similarly, Meng et al. …

Machine Learning-Based Mix Design Tools to Minimize Carbon Footprint and Cost of UHPC. Part 2: Cost and Eco-Efficiency Density Diagrams

Sep 9, 2023 · The main principles of the mix design of UHPC are: To achieve a high particulate matter packing density and reduce the matrix’s voids and water content. To use a low water …

Ultra-high-performance concrete (UHPC) is defined as ‘concrete that has a minimum specified compressive strength of 150 MPa with specified durability tensile ductility and tough­ness …

19 hours ago · The Z-UHPC mix design was based on the Chinese standard GB/T 31387-2015 using an internal mixing method . In this design, cement, silica fume, and slag were partially …

Aug 1, 2016 · Mix design procedures were developed around the core strategy of maximizing the packing and ensuring distributed size distribution of the particulate matter in UHPC for …