Strain Hardening Cementitious Composites: SHCC5

Preface
Contents
RILEM Publications
RILEM Proceedings (PRO)
RILEM Reports (REP)
New Materials and Process Technology
Mechanical Performance of Strain Hardening Limestone Calcined Clay Cementitious Composites (SHLC4) Subject to Wet-Dry Cycles
1 Introduction
2 Experimental Program
2.1 Materials and Composition
2.2 Specimen Preparation and Testing Configuration
3 Results and Discussion
3.1 Uniaxial Tension Test of Reference SHLC4
3.2 Autogenous Healing in SHLC4
4 Conclusion
References
The Use of Ultra-high Volume of Lime Stone Calcine Clay to Produce Basalt Fiber Reinforced Strain Hardening Cementitious Composites
1 Introduction
2 Materials and Testing
2.1 Constituents
2.2 Specimen Preparation
2.3 Testing Details
3 Results and Discussions
3.1 Fiber Properties
3.2 Compressive Strength
3.3 Pullout Results
3.4 Tensile Test Result
3.5 Durability Assessment
4 Conclusions
References
Utilization of Artificial Geopolymer Aggregates in High-Strength Engineered Cementitious Composites (HS-ECC)
1 Introduction
2 Experimental Program
2.1 Raw Materials
2.2 GPA Production
2.3 ECC Production
2.4 Testing Methods
3 Mechanical Properties
3.1 Tensile Performance
3.2 Compressive Strength
3.3 Comparison of Short- and Long-Term Overall Performance
4 Ductility Enhancement Mechanism of GPA in ECC
5 Conclusions
References
Engineered Geopolymer Composites (EGC) with Ultra-high Strength and Ductility
1 Introduction
2 Materials and Test Program
2.1 Raw Materials
2.2 Preparation of UHSD-EGC
2.3 Testing Methods
3 Results and Discussions
3.1 Compressive Strength
3.2 Tensile Performance
3.3 Strain Energy Density Under Tension
3.4 BSE Results of Matrix
4 Conclusions
References
Developing CO2-Sequstrating Strain-Hardening Magnesia-Based Composite (SHMC) with Hybrid Synthetic-Natural Fibers
1 Introduction
2 Experimental Programs
2.1 Materials
2.2 Single Fiber Pull-Out Test
2.3 Tensile Test
3 Results and Discussions
4 Conclusions
References
Fundamental Study on Mechanical Performances of FRCC Using Polypropylene Nanofibers
1 Introduction
2 Outline of the Experiment
2.1 Materials
2.2 Specimen Preparation and Curing
2.3 Three-Point Bending Test
2.4 Compressive Strength Test
2.5 SEM Observation
3 Results and Discussion
3.1 Mixing and Dispersion Methods of Nanofibers
3.2 Single Use of PP Nanofibers
3.3 Combined Use of PP Nanofibers with PVA Fibers
4 Conclusion
References
The Use of Strain Hardening Natural Fabric Reinforced Cement Based Composite Systems for Structural Applications
1 Introduction
2 Materials and Methods
3 Results and Discussions
4 Conclusions
References
Mechanical Properties of Fiber-Reinforced Cementitious Composites Manufactured Using 3D-Printing Technology
1 Introduction
2 3D-Printable Fiber-Reinforced Cementitious Composites
3 Experimental Program
3.1 Mixture Proportions and Raw Materials
3.2 Manufacturing of Specimens
3.3 Method for Mechanical Tests
4 Experiment Results
4.1 Compression Tests
4.2 Splitting Tensile Tests
4.3 Bending Tests
5 Conclusion
References
SHCC Reinforced 3D Printed Concrete
1 Introducing SHCC as Novel Freeform Reinforcement
2 Reinforcement Strategy
3 Experimental Program
3.1 Materials and Specimen Preparation
3.2 Characterisation Tests
3.3 Test Protocols
4 Results
4.1 Flexural Stress Results
4.2 Ductility and Multiple Cracking
5 Demonstrative Design Calculations for SHCC-3DCP
6 Conclusions
References
Mechanism and Characterization of Cracking
Influence of Placing Thickness on Fiber Orientation and Bridging Law of FRCC
1 Introduction
2 Visualization Simulation of Placing Thickness on Fiber Orientation
2.1 Materials and Simulation Method for Test
2.2 Image Processing and Statistics of Fiber Distribution
3 Calculation of Bridging Law and Section Analysis
3.1 Calculation of Bridging Law
3.2 Section Analysis
4 Conclusion
References
Comparison Between Experimentally Determined and Theoretical Fiber Orientation Distribution in Strain Hardening Cementitious Composites (SHCC)
1 Introduction
2 Fiber Inspection Techniques
2.1 Sample Preparation and Image Acquisition
2.2 Image Processing
2.3 Determining the Fiber Orientation
3 Comparison Between Experimentally Determined and Theoretical Fiber Orientation Distribution
3.1 Experimental Results
3.2 Wall Effect Analysis
3.3 Comparison Between the Test Results and Theoretical Analysis
4 Flattening Effect Analysis
4.1 Introduction and Assumptions
4.2 Case Studies and Numerical Analysis
5 Bridging Stress Analysis
6 Conclusion
References
A Depth-Dependent Fiber-Bridging Model to Predict the Tensile Properties Recovery Induced by the Self-healing of Strain-Hardening Cementitious Composites
1 Introduction
2 Review: Existing Fiber-Bridging Analytical Model
3 The Methodology of Depth-Dependent and Self-healing Model
3.1 To Quantify the Depth-Dependency
3.2 To Quantify the Effect of Fiber-Matrix Interfacial Healing
4 Parametric Study with the New Model
5 Summary
References
MicroCT and 3D Image Processing and Analysis to Investigate Strain-Hardening Cement-Based Composites (SHCC)
1 Introduction
2 Experimental Program
3 Results and Discussions
4 Conclusions
References
A New Method to Quantitatively Characterize the Porosity of Fiber/Matrix Interfacial Transition Zone (ITZ) via Longitudinal Cross-Sections
1 Introduction
2 Materials and Methods
2.1 Materials
2.2 Detailed Sample Preparation Method
3 Results and Discussion
3.1 Porosity Gradient
3.2 Unhydrated Clinker Gradient
4 Conclusions
References
Pull-Out Behavior of Single Fiber Embedded in Porosity Free Concrete(PFC)
1 Introduction
2 Outline of Experiments
2.1 Test Series
2.2 Specimens
2.3 Experimental Setup
3 Experimental Results
3.1 Matrix Strength
3.2 Curing Condition
3.3 Type of Fiber
3.4 Embedment Length
4 Conclusions
References
Experimental Study on Bond-Slip Behavior of Steel Reinforcement in High-Strength Strain-Hardening Cementitious Composites (SHCC) Under Direct Tension
1 Introduction
2 Experimental Program
2.1 Materials
2.2 Specimen Preparation and Testing Procedure
3 Results and Discussions
4 Conclusions
References
Crack Width Evaluation of DFRCC Members Reinforced with Braided AFRP Bar
1 Introduction
2 Pullout Bond Test
2.1 Outline of Pullout Bond Test
2.2 Experiment Results
3 Crack Width Prediction Formula
4 Uniaxial Tension Test
4.1 Outline of Uniaxial Tension Test
4.2 Experiment Results
4.3 Adaptability of Calculation Formulas with Experimental Results
5 Conclusion
References
Cracking Behaviour of Strain-Hardening Cementitious Composites (SHCC) Under Practical Creep Conditions
1 Introduction
2 Experimental Setup
2.1 Materials and Preparation
2.2 Quasistatic Characterisation Tests on SHCC
2.3 Restrained Creep Test Setup
3 Results and Discussion
4 Conclusions and Limitations
References
Influence of Loading Frequency and Force Level on the Cyclic Performance of Strain-Hardening Cement-Based Composites (SHCC)
1 Introduction
2 Experimental Setup and Testing Program
2.1 Material
2.2 Manufacturing and Preparation
2.3 Testing Program
3 Test Results
4 Conclusions
References
A Novel Deep Learning Model for End-to-End Characterization of Thin Cracking in SHCCs
1 Introduction
1.1 Related Work
2 Proposed Method
2.1 Background
2.2 Network Design of “Strain Hardening Segmentation Network” (SHSnet)
2.3 Proposed Novel Loss Function (PLF)
2.4 Crack Computation from Segmentation Mask
3 Data Collection and Training
4 Results and Applications
4.1 Training Ability
4.2 Comparison of the Quality of Crack Parameters
4.3 Comparison of Time in Compute Crack Parameters
5 Applications of SHSnet for Studies of SHCC
5.1 Crack Development in SHCC
5.2 Monitoring of Durability
6 Conclusions
References
Parametric Modeling of Flexural Response of Sandwich Composites
1 Introduction
2 Skin and Core Material Properties
3 Moment-Curvature Response Based on Force Equilibrium
4 Sandwich Model Validation
4.1 Material Parameters Identification
4.2 Flexural Simulation of Sandwich Composites
5 Conclusion
References
Mix Optimisation and Bending Behaviour of Cement Composites Reinforced with 3D Textiles and Microfibres
1 Introduction
2 Materials and Methods
2.1 Materials
2.2 Methods
3 Results and Discussion
3.1 Mix Optimisation
3.2 Mechanical Behaviour
3.3 Crack Pattern Analysis
4 Conclusions
References
Spacers for 3D Textiles as Reinforcement in Cement Composites: Influence on the Flexural and Cracking Behavior
1 Introduction
2 Materials and Methods
2.1 Material Selection and Reinforcement Configurations
2.2 TRC Manufacturing Process
2.3 Experimental Test Setup
3 Experimental Results and Discussion
4 Conclusions
References
Durability
Experimental Study on Autogenous Healing of Cracked SHCC Under Sustained Bending Loading
1 Introduction
2 Experimental Program
2.1 Materials and Mixture
2.2 Four-Point Bending Test and Autogenous Healing Operation
3 Results and Discussion
4 Conclusions
References
How Does Self-healing Under Sustained Loadings in Aggressive Water Affect the Constitutive Response of a UHPFRC?
1 Introduction
2 Experimental Program
2.1 Materials and Basic Mechanical Properties
2.2 Experimental Methodology
3 Results and Discussions
3.1 Results of Direct Tensile Tests
3.2 Results of Inverse Analysis
4 Conclusions
References
Acoustic Emission Technique for Monitoring Healing Induced Recovery of Mechanical Properties (HIRMP)
1 Introduction
1.1 Related Work
2 Proposed Method
2.1 Background
2.2 Computational Steps for Assessment of HIRMP
3 Experimental Details
4 Results and Discussions
4.1 Qualitative Application of Damage Parameters of MRAE
4.2 MRAE and HIRMP
5 Conclusions
References
Effects of Corrosion on Bond Behavior of Reinforcing Bar in Concrete and SHCC
1 Introduction
2 Experimental Procedure
3 Rebar Corrosion
4 Evaluation of Bond Behavior
5 Conclusions
References
Practical Applications
Follow-Up Review of Early SHCC Applications in Japan
1 Introduction
2 Trial Application of SHCC for Restoring the Appearance of ASR-Cracked Concrete Retaining Wall (2003 and 2008) [5]
2.1 Outline of Retaining Wall and Initial SHCC Shotcreting (April 2003) [6]
2.2 Thin Layer Shotcreting of SHCC (October 2008)
2.3 Follow-Up Survey (September 2020)
2.4 Technical Discussion
3 Application of SHCC to Concrete Hydraulic Structures as a Surface Repair Material (2005–)
3.1 Repair of Concrete Hydraulic Structures
3.2 Premixed SHCC Products
3.3 Repair Methods
3.4 SHCC Applications to Concrete Hydraulic Structures and Follow-Up Review
4 Application of SHCC to Emergency Bays in Hida Tunnel as a Protective Layer for Multilayer Lining (2007)
4.1 Hida Tunnel
4.2 Multilayer Shotcrete Lining Adopted for the Emergency Bays [7]
4.3 Follow-Up Review of Multilayer Shotcrete Lining
5 Application of SHCC to Viaducts of Tokaido Shinkansen as Protective Mortar for the Bases of Noise Barriers (2013–)
5.1 Large-Scale Renovation of Tokaido Shinkansen
5.2 Application of SHCC to the Bases of New-Type Noise Barriers
5.3 Technical Discussion and Follow-Up Review
6 Conclusions
References
Strain-Hardening Cement-based Composites (SHCC) for Impact Strengthening of Buildings: Recent Advances in the DFG Research Training Group 2250
1 Introduction
2 Structure and Goals of RTG2250/II
2.1 The Experimental Approach: SHCC Development and Assessment
2.2 Numerical Modeling Techniques for Optimizing Impact Resistance
2.3 Data-driven Research: Sustainability, Photogrammetry and Design Optimization
3 Conclusions and Outlook
References
Repair of a Hydraulic Structure with Different Strain-Hardening Cement-Based Composites
1 Introduction
2 The Structure
2.1 General
2.2 Structural Condition
3 Retrofitting
3.1 Surface Sectioning and Materials
3.2 Functionality of the Rehabilitation Layers
4 Implementation
4.1 Accompanying Laboratory Tests
4.2 Monitoring
5 Conclusion and Outlook
References
Overlay of RC Bridge Deck Deteriorated by ASR Using an Ultra High Performance-Strain Hardening Cementitious Composite (UHP-SHCC)
1 Introduction
2 Overlay on ASR-Deteriorated Reinforced Concrete Bridge Deck
2.1 Concept of Repair
2.2 Materials
2.3 Strength Tests and Condition After Execution
3 Evaluation of Cracking Potential
3.1 Introduction
3.2 Experiment Overview
3.3 Results and Discussion
4 Concluding Remarks
References
Full-Scale Experiment of AFt-UHPFRC for Overlay of Bridge Deck
1 Introduction
1.1 Background
1.2 AFt-UHPFRC
2 Full-Scale Construction Experiment
2.1 Outline
2.2 Test Conditions
3 Evaluation and Material Test
3.1 Outline
3.2 Fresh Properties of AFt-UHPFRC
3.3 Mechanical Properties of AFt-UHPFRC
3.4 Length Change of AFt-UHPFRC
3.5 Bond Strength
3.6 Porosity of the Specimen
3.7 Chloride Penetration Resistance
4 Conclusion
References
Characteristic of UHPFRC and New Applications
1 Introduction
2 Overview of High Seismic Performance RC Piers Using UHPFRC
3 Seismic Retrofit Method by UHPFRC for Existing Piers
4 Plastering Method
4.1 Mix Proportion of UHPFRC for Plastering Method
4.2 Cyclic Loading Test
5 Spraying Method
6 Conclusion
References
Author Index