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E-raamat: High Performance Self-Consolidating Cementitious Composites

(Retired, Department of Ocean Engineering, Indian Institute of Technology Madras, Chennai, INDIA)
  • Formaat: 449 pages
  • Ilmumisaeg: 19-Feb-2018
  • Kirjastus: CRC Press
  • Keel: eng
  • ISBN-13: 9781351664974
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High Performance Self-Consolidating Cementitious CompositesSuurem pilt
  • Formaat: 449 pages
  • Ilmumisaeg: 19-Feb-2018
  • Kirjastus: CRC Press
  • Keel: eng
  • ISBN-13: 9781351664974
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This book attempts to bring together some of the basic intricacies in the production of the complete range of self-consolidating cementitious composites, with a proper understanding of the contributions of different materials and their combinations, including performance and limitations.

Presents a comprehensive perspective of the state of the art in self-compacting concretes while explaining the basic background and principles, includes possible alternatives of making SCC with different powder extenders and pozzolanic materials

Explores concepts through theoretical and graphical representations
Preface xi
Acknowledgments xiii
Author xv
1 Introduction 1(12)
1.1 Concept
1(2)
1.2 Historical Development
3(2)
1.3 Definition
5(2)
1.4 Formulations and Classifications of SCCs
7(1)
1.5 Potential and Limitations
8(1)
1.6 Future Prospects
9(1)
References
10(3)
2 Constituent Materials 13(26)
2.1 Constituent Materials and Availability
13(1)
2.2 Cements and Characteristics
14(3)
2.3 Simple Powder Extenders
17(1)
2.4 Supplementary Cementitious Materials
18(8)
2.4.1 Pulverized Fuel Ash or Fly Ash
19(2)
2.4.2 Ground Granulated Blast Furnace Slag
21(2)
2.4.3 Silica Fume
23(1)
2.4.4 Other Pozzolanic Admixtures
23(3)
2.5 Superplasticizers and Other Chemical Admixtures
26(2)
2.5.1 Superplasticizers or High-Range Water Reducing Admixtures
26(1)
2.5.2 Viscosity Modifying Admixtures
27(1)
2.5.3 Other Admixtures
27(1)
2.5.4 Mixing Water
27(1)
2.6 Aggregate Characteristics
28(7)
2.6.1 Reinforcing Fibers
34(1)
2.7 Interactions and Compatibility
35(1)
References
36(3)
3 Insights into Standards and Specifications 39(34)
3.1 Standardization Principles
39(1)
3.2 Fundamental Characterization and Classification
40(2)
3.3 Methods of Consistency Measurement
42(17)
3.3.1 Slump Flow and T500 Tests
45(3)
3.3.2 J-Ring Test
48(2)
3.3.3 V-Funnel Test
50(2)
3.3.4 U-Box Test
52(1)
3.3.5 L-Box Test
53(1)
3.3.6 Orimet Test
54(1)
3.3.7 Mesh Box Test
55(1)
3.3.8 Fill Box (Kajima Box) Test
55(1)
3.3.9 Screen Stability Test
56(1)
3.3.10 Column Settlement Test
57(1)
3.3.11 Penetration Resistance Test
58(1)
3.3.12 Job Site Acceptance Methods
58(1)
3.4 Japanese Recommendations
59(1)
3.5 Euro-EFNARC Guidelines
60(5)
3.6 ACI Recommendations
65(1)
3.7 Other Perceptions
66(3)
3.8 Summary and Suggestions
69(1)
References
70(3)
4 Methodologies for the Proportioning of SCC Mixtures 73(36)
4.1 Introduction
73(2)
4.2 Design Viewpoints
75(6)
4.3 Semi-empirical Methods
81(4)
4.4 Compositions Based on Wetting Water Requirements of the Constituents
85(2)
4.5 Methods Based on Aggregate Distribution and Packing Factors
87(4)
4.6 Methods of Limiting the Cementitious Materials through Water Content
91(1)
4.7 Methods of Incorporating the Cementitious Efficiency of Pozzolans
91(1)
4.8 Procedures for Incorporating Different Pozzolans
92(3)
4.9 Approaches for a Specified Compressive Strength
95(2)
4.10 Methods Based on Rheometer Tests
97(1)
4.11 Methods Based on the Rheological Paste Model
97(2)
4.12 Methods Based on the Rheological Paste Model Incorporating Fibrous Materials
99(1)
4.13 Guidelines Based on Statistical Evaluations
100(2)
4.14 Need for a Relook and Proposed Methodology
102(3)
References
105(4)
5 Concepts and Criteria for High-Performance Self-Compacting Concretes 109(50)
5.1 Introduction
109(1)
5.2 Fundamental Concepts of Performance
110(1)
5.3 Environmental Parameters
111(5)
5.4 Practical Approach for High-Performance Design
116(2)
5.4.1 Concrete Production Practice
117(1)
5.5 Performance Evaluation Methodologies
118(1)
5.6 Concept of Pozzolanic Efficiency and Strength Relations
118(23)
5.6.1 Efficiency Concept
119(3)
5.6.2 Evaluation of Efficiency
122(8)
5.6.3 Factors Influencing the Efficiency of Fly Ash
130(5)
5.6.4 Water-Cement Ratio to the Strength Relation
135(6)
5.7 Effects of Pozzolanic Addition on Consistency
141(1)
5.8 Packing and Optimal Granular Skeleton
142(2)
5.9 Proposed Methodology for High-Performance SCCs
144(9)
5.9.1 Strength Assessment of the Pozzolanic Cementitious Contents
145(1)
5.9.2 Water Content, Plasticizer, and VMA Interactions
146(2)
5.9.3 Aggregate Grading and Proportioning on the Packing and Loosening Aspects
148(3)
5.9.4 Optimal Utilization of Pozzolanic Materials for High-Performance SCCs
151(2)
5.10 Efficacy of the Proposed Methodology
153(3)
References
156(3)
6 SCCs Based on Powder Extenders and Low-End Pozzolans 159(68)
6.1 Introduction
159(1)
6.2 Concept of Powder Extenders
160(3)
6.3 SCCs Incorporating Fly Ash
163(11)
6.4 SCCs Incorporating LSP
174(5)
6.5 SCCs Incorporating GGBS
179(2)
6.6 SCCs through Other Inert Powder Extenders
181(2)
6.7 Practical Limitations on Powder Fillers
183(2)
Appendix FA-6
185(12)
Appendix LS-6
197(12)
Appendix GG-6
209(11)
References
220(7)
7 SCCs Based on High Efficiency and Nano Pozzolans 227(44)
7.1 Introduction
227(1)
7.2 Concepts of High Strength and High Performance
228(1)
7.3 SCCs Incorporating Silica Fume and Nanosilica
229(18)
7.3.1 SCCs Incorporating Silica Fume
232(1)
7.3.2 Evaluation of Efficiency of Silica Fume
233(12)
7.3.3 SCCs with Nanosilica
245(2)
7.4 SCCs Incorporating Calcined Clays
247(2)
7.5 SCCs Incorporating Rice Husk Ash
249(3)
7.6 Saturation Concepts and Effects
252(2)
7.7 SCCs Incorporating Fibrous Constituents
254(3)
Appendix SF-7
257(10)
References
267(4)
8 Fresh Concrete Characteristics of SCCs 271(56)
8.1 Introduction
271(1)
8.2 Fundamentals of Consistency and Compaction
272(2)
8.3 Rheology and Thixotropy of SCCs
274(2)
8.4 Critical Evaluation and Comparison of the Test Methods
276(23)
8.5 Effects of Quality and Quantity of Cementitious Materials
299(2)
8.6 Wetting Water Requirements of Powder Materials
301(11)
8.6.1 Superplasticizer Requirements of Pozzolanic Cementitious Mixtures
303(2)
8.6.2 Effect of Pozzolanic Admixtures on Setting Times
305(1)
8.6.3 Effect of Pozzolanic Admixtures on Strength Characteristics
306(3)
8.6.4 Effect of Superplasticizer on the Water Requirement of Pozzolanic Cementitious Mixtures
309(3)
8.7 Effects of Granular Skeleton Characteristics and Fibrous Materials
312(1)
8.8 Segregation and Bleeding
313(1)
8.9 Shrinkage and Heat of Hydration
314(1)
8.10 Transport, Placement, and Finishing
315(1)
8.11 Formwork and Pressure on Formwork
316(1)
8.12 Setting Times and Removal of Forms
317(1)
8.13 Curing Needs, Precautions, and Best Practices
318(1)
8.14 Effect of Accelerated Curing and Maturity Concepts
319(2)
8.15 Quality Assurance and Control
321(1)
References
322(5)
9 Mechanical Characteristics of SCCs 327(38)
9.1 Introduction
327(1)
9.2 Physical Properties and Microstructural Effects
327(18)
9.3 Compressive Strength and Strength Gain Rate
345(7)
9.4 Near-Surface Characteristics
352(2)
9.5 Tensile and Shear Strengths
354(1)
9.6 Applicability of Conventional Concrete Relations to SCCs
355(1)
9.7 Modulus of Elasticity
355(1)
9.8 Bond with Reinforcement
356(1)
9.9 Creep and Relaxation
357(1)
9.10 Prestressing and Anchorages
357(1)
9.11 Applicability of NDT
358(1)
References
359(6)
10 Performance and Service Life of Self-Compacting Concrete 365(48)
10.1 Introduction
365(1)
10.2 Durability of Concrete
366(14)
10.2.1 Environmental Parameters
367(2)
10.2.2 Concrete Parameters
369(1)
10.2.2.1 Alkalinity of Concrete
369(1)
10.2.2.2 Resistivity of Concrete
370(1)
10.2.3 Reinforcement Parameters
370(4)
10.2.3.1 Tests Related to Concrete
370(3)
10.2.3.2 Tests Related to Steel Reinforcement
373(1)
10.2.4 Methods of Corrosion Control
374(2)
10.2.5 Durability Investigations
376(4)
10.3 Strength and Porosity
380(1)
10.4 Transport Characteristics
381(6)
10.5 Environmental Degradation
387(2)
10.6 Chemical Degradation
389(2)
10.6.1 Acid Attack
389(1)
10.6.2 Sulfate Attack
389(1)
10.6.3 Carbonation
390(1)
10.7 Alkali-Aggregate Reactivity
391(1)
10.8 Thermal Degradation
391(1)
10.9 Corrosion Characteristics
392(3)
10.10 Service-Life Prediction or Residual Life Evaluation Methods
395(14)
10.10.1 Chloride Diffusivity
396(1)
10.10.2 Macrocell Corrosion Test
397(1)
10.10.3 Thermal Cycling of Concrete
398(1)
10.10.4 Service-Life Determination Using Chloride Diffusivity
399(4)
10.10.5 Chloride Diffusion Studies
403(1)
10.10.6 Corrosion Rate Studies
403(1)
10.10.7 Electrolytic Accelerated Corrosion Studies
404(3)
10.10.8 Service-Life Determination Using Carbonation
407(1)
10.10.9 Service-Life Management of Constructed Facilities
408(1)
References
409(4)
11 Frontiers and Research Needs 413(12)
11.1 Introduction
413(1)
11.2 Applications and Prospects
414(2)
11.3 SCCs in Repair and Rehabilitation Practice
416(1)
11.4 Re-Alkalization of Concrete
417(1)
11.5 Chloride Binding and Extraction
417(1)
11.6 Tunnel Lining and Grouting Applications
418(1)
11.7 Underwater Concrete Applications and Repair
418(1)
11.8 Applications in Marine Environment
419(1)
11.9 Ultra-High-Strength Grouts and Composites
419(1)
11.10 Reinforced Fibrous Composites
420(2)
11.11 Research and Developmental Requirements
422(1)
11.12 Concluding Remarks
422(1)
References
423(2)
Index 425
Prof. Ganesh Babu Kodeboyina, after obtaining his bachelors degree in Civil Engineering with Distinction from the Andhra University, joined IIT Madras for his Masters in Structural engineering. He then continued in IIT Madras and obtained his doctoral degree working in the area of behaviour of Partially Prestressed Concrete structural members. He then joined as a Scientist in the Structural Engineering Research Centre and was involved in several projects like Large Diameter Prestressed Concrete Pipes, Ferro cement, Fiber Reinforced Concrete apart from being the principal investigator on the UNDP sponsored project on Polymer Concrete Composites.
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