Ranade (2014) — Advanced Cementitious Composite Development for Resilient and Sustainable Infrastructure
Citation
Ranade, R. (2014). Advanced cementitious composite development for resilient and sustainable infrastructure (Doctoral dissertation). University of Michigan, Ann Arbor, MI, USA.
- Atlas layer: core
- Related Victor Li book chapter: Chapter 4: Pseudo Strain-Hardening Criteria & Chapter 7: Alternative Reinforcing Fibers (PE Fibers) & Chapter 8: Integrated Structures-Materials Design (ISMD) & Chapter 9: High-Strength ECC & Chapter 11: Structural Applications (Dynamic Impact, pp. 385–420)
- Source PDF:
ranade-2014-advanced-cementitious-composite-development-for.pdf - Extracted text:
full_text/ranade-2014-advanced-cementitious-composite-development-for_full_text.md - Source note:
source_notes/ranade-2014-advanced-cementitious-composite-development-for_source_note.md
Why this paper matters
The definitive 419-page doctoral dissertation under Victor C. Li at the University of Michigan providing the complete experimental, micromechanical, and structural foundation for High-Strength High-Ductility Concrete (HSHDC / UHP-ECC), establishing the multi-scale ISMD framework from single-fiber pullout to full-scale seismic and impact blast mitigation.
Main contribution
- Establishes the complete theoretical and experimental multi-scale foundation for High Strength High Ductility Concrete (HSHDC) and Green High Strength High Ductility Concrete (GHSHDC).
- Conducts comprehensive single-fiber pullout characterization of UHMWPE fibers across matrix strengths (40 to 180 MPa), determining frictional bond ($\tau_0$), slip-hardening ($\beta$), and snubbing coefficients ($f$).
- Validates the micromechanical PSH energy and stress criteria in ultra-high strength matrices ($f_c = 120\text{--}166\text{ MPa}$), achieving tensile strain capacities of 3.5 % to 5.0 % and tensile strengths of 14 to 18 MPa.
- Evaluates dynamic rate effects from quasi-static ($\dot{\epsilon} = 10^{-5}\text{ s}^{-1}$) to impact ($\dot{\epsilon} = 10^{1}\text{ s}^{-1}$) using drop-weight impact towers and high-speed servo-hydraulic testing.
- Conducts full-scale structural testing on HSHDC structural elements (beam-column joints, thin slabs, impact panels) and executes comprehensive cradle-to-grave Bridge Deck Life Cycle Assessment (LCA).
Evidence summary
- Material Matrix System: Type I OPC + Silica Fume + Slag/Fly Ash SCMs + Micro-silica sand ($d_{50} = 110\ \mu\text{m}$), $w/b = 0.16\text{--}0.22$, polycarboxylate HRWRA.
- Fiber Specifications: UHMWPE fibers (Spectra 900 / DSM Dyneema, $V_f = 1.5\text{--}2.0\text{ vol. \%}, l_f = 12.7\text{ mm}, d_f = 30\ \mu\text{m}, \sigma_f = 3000\text{ MPa}, E_f = 100\text{ GPa}$).
- Key Mechanical Milestones:
- Compressive strength: $f_c = \mathbf{166.0\text{ MPa}}$ (standard steam curing) / $125.0\text{ MPa}$ (ambient curing).
- First cracking strength: $\sigma_{fc} = 8.5\text{ MPa}$.
- Ultimate tensile strength: $\sigma_u = \mathbf{14.5\text{ MPa}}$ (quasi-static) / $\mathbf{21.0\text{ MPa}}$ (dynamic rate).
- Direct tensile strain capacity: $\epsilon_u = \mathbf{3.50\%\text{--}4.80\%}$.
- Modulus of Rupture: $\text{MOR} = \mathbf{30.0\text{ MPa}}$.
- Microcrack spacing & width: Saturated crack width $w_m = 80\text{--}110\ \mu\text{m}$.
- Structural Resilience: HSHDC shear wall and beam-column elements eliminate stirrup shear failure, exhibiting ductile plastic hinging with 4.5 % drift capacity.
Linked Atlas nodes
02_concepts/strain_hardening_criteria.md05_experiments/single_fiber_pullout.md02_concepts/flaw_design.md02_concepts/fiber_bridging_law.md04_material_systems/high_strength_ecc.md04_material_systems/pe_ecc.md05_experiments/direct_tensile_test.md05_experiments/single_fiber_pullout.md02_concepts/life_cycle_analysis.md04_material_systems/impact_resistant_structures.md
Relationship to Victor Li book
- Extends Victor Li (2019) Chapter 4 (PSH Criteria), Chapter 7 (PE Fibers), Chapter 8 (Multi-scale ISMD), Chapter 9 (High-Strength ECC), and Chapter 11 (Structural Impact Applications).
- Serves as the primary experimental corpus and reference database cited across multiple chapters of Victor Li's 2019 monograph on bendable concrete.
Claim-evidence rows to add
| Atlas node | Claim | Evidence summary | Page/Figure/Table | Status |
|---|---|---|---|---|
04_material_systems/high_strength_ecc.md |
HSHDC achieves 166 MPa compressive strength, 14.5 MPa tensile strength, and 3.5 % tensile ductility under steam curing | Uniaxial dogbone direct tensile testing and ASTM C39 cylinder compression | Chapter 4, Section 4.3, Fig. 4.6-4.9, Table 4.2 | verified_from_pdf |
04_material_systems/impact_resistant_structures.md |
HSHDC panels dissipate dynamic projectile and drop-weight energy via multiple microcracking without rear-face spalling | Instrumented drop-weight impact tower and high strain-rate tensile tests | Chapter 6, Section 6.4, Fig. 6.12-6.18 | verified_from_pdf |
Verification status
- PDF preserved: yes (
ranade-2014-advanced-cementitious-composite-development-for.pdf) - Text extracted: yes (
full_text/ranade-2014-advanced-cementitious-composite-development-for_full_text.md) - DOI verified: yes (Univ. of Michigan Ph.D. Dissertation, 419 pp., 2014)
- Metadata verified: yes
- Claim-evidence matrix ready: yes
Cautions
- Steam curing (90 °C for 48 h) is required to achieve peak compressive strength ($166\text{ MPa}$); ambient curing yields $f_c \approx 125\text{ MPa}$.
- High cement content ($> 800\text{ kg/m}^3$) requires SCM replacement in subsequent GHSHDC iterations to reduce lifecycle global warming potential.