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ویرایش: 9
نویسندگان: Frederick Sandrock Fulton
سری:
ISBN (شابک) : 9780958477918, 0958477914
ناشر: Document Transformation Technologies
سال نشر: 2009
تعداد صفحات: 465
زبان: English
فرمت فایل : PDF (درصورت درخواست کاربر به PDF، EPUB یا AZW3 تبدیل می شود)
حجم فایل: 31 مگابایت
در صورت تبدیل فایل کتاب Fulton's concrete technology به فرمت های PDF، EPUB، AZW3، MOBI و یا DJVU می توانید به پشتیبان اطلاع دهید تا فایل مورد نظر را تبدیل نمایند.
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Cover Preface Acknowledgements Contributors Print SEARCH Contents Ch.1 Cementitious materials 1.1 Introduction 1.2 Specifications and test methods 1.2.1 Common cements 1.2.2 Masonry cements 1.2.3 Cement extenders 1.2.4 Limestone Filler 1.3 Properties and uses 1.3.1 Cements for concrete 1.3.2 Cements for mortars and plasters 1.4 Storage and handling 1.4.1 Bagged cement 1.4.2 Bulk cement 1.5 Setting and hardening of cement 1.5.1 False set and flash set 1.5.2 Brief-mix set 1.6 Curing 1.7 Water:cement ratio 1.8 The cement industry as a contributor of greenhouse gas emissions 1.9 Manufacture and composition 1.9.1 Portland cement 1.9.2 Ground granulated blastfurnace slag (GGBS) 1.9.3 Fly ash (FA) 1.9.4 Condensed silica fume (CSF) 1.9.5 Limestone 1.10 Cementing reactions and reaction products 1.10.1 Portland cement 1.10.2 Ground granulated blastfurnace slag 1.10.3 Fly ash and condensed silica fume 1.10.4 Limestone 1.11 Setting and hardening of portland cement 1.12 Physical aspects of cement paste 1.12.1 Portland cement paste 1.12.2 HCP made with portland cement and cement extenders Further reading References Ch.2 Other cements 2.1 Introduction 2.2 Modified portland cements 2.2.1 Air-entraining cement 2.2.2 Anti-bacterial cement 2.2.3 Coloured cement 2.2.4 Expansive cement 2.2.5 Extra-rapid-hardening cement 2.2.6 Hydrophobic cement 2.2.7 Low-heat cement 2.2.8 Oilwell cement 2.2.9 Regulated-set cement (jet cement) 2.2.10 Trief cement 2.2.11 Ultra-rapid-hardening cement 2.2.12 Waterproof cement 2.2.13 White cement 2.3 Other hydraulic cements 2.3.1 Calcium aluminate cements 2.3.2 Geopolymers 2.3.3 Hydraulic lime 2.3.4 Natural cement 2.3.5 Strontium and barium cements 2.3.6 Supersulphated cement (SSC) 2.4 Chemical cements 2.4.1 Aluminium oxychloride cement 2.4.2 Magnesium oxychloride cement (Sorel cement) 2.4.3 Magnesium oxysulphate cement 2.4.4 Magnesium phosphate cement or magnesia-ammonium phosphate cement 2.4.5 Sulphur 2.4.6 Zinc oxychloride cement Further reading References Ch.3 Aggregates for concrete 3.1 Introduction 3.2 Properties of concrete aggregates and their influence on the properties of concrete 3.2.1 Absorptivity and porosity 3.2.2 Dimensional properties 3.2.3 Grading, fineness modulus and dust and clay content 3.2.4 Organic material in aggregates 3.2.5 Particle density 3.2.6 Particle shape and surface texture 3.2.7 Soundness 3.2.8 Strength 3.2.9 Water-soluble salt and other deleterious chemicals in aggregates 3.2.10 Rocks and minerals that may be deleterious in aggregates 3.3 Specification for aggregates 3.3.1 Definitions 3.3.2 Requirements for fine aggregate 3.3.3 Requirements for coarse aggregate 3.4 Sampling and testing 3.5 Origin of aggregates 3.5.1 Igneous rocks 3.5.2 Sedimentary rocks 3.5.3 Metamorphic rocks 3.5.4 Geological history 3.6 South African aggregates 3.6.1 Coarse aggregate 3.6.2 Fine aggregate 3.7 The effect of crushing techniques on aggregate properties Appendix Aggregates derived from waste materials Acknowledgements Further reading References Ch.4 Mixing water 4.1 Introduction 4.2 Practical guidelines 4.2.1 General 4.2.2 Assessing the suitability of water for mixing water for concrete 4.3 Additional information 4.3.1 General 4.3.2 Chlorides 4.3.3 Sulphates 4.3.4 Alkali carbonates and bicarbonates 4.3.5 0il 4.3.6 Sugar 4.3.7 Algae 4.3.8 pH 4.3.9 Natural waters of South Africa 4.3.10 Wash water 4.3.11 Sea water 4.3.12 Domestic waste water 4.3.13 Waste waters Further reading References Ch.5 Chemical admixtures 5.1 Introduction 5.1.1 Types 5.1.2 Mechanism of action 5.2 Admixture categories and guide-lines for use 5.2.1 Dispersing admixtures 5.2.2 Retarding and retarding plasticising admixtures 5.2.3 Accelerating admixtures 5.2.4 Air-entraining admixtures 5.2.5 Water-resisting admixtures (waterproofing) 5.2.6 Mortar admixtures 5.2.7 Sprayed concrete admixtures 5.2.8 Grout admixtures 5.3 Admixtures not covered by EN 934 or ASTM C494 5.3.1 Admixtures for foamed concrete and low-density fill materials 5.3.2 Admixtures for precast semi-dry concrete 5.3.3 Corrosion inhibitors 5.3.4 Pumping aids 5.3.5 Anti-washout admixtures 5.3.6 Polymer-dispersing admixtures 5.3.7 Shrinkage-reducing admixtures 5.4 Using admixtures: practical considerations 5.4.1 Design of mixes 5.4.2 Quality assurance 5.4.3 Storage and handling 5.4.4 Dosage and dispensing 5.4.5 Safety Further reading References Ch.6 Properties of fresh concrete 6.1 Introduction 6.2 Workability 6.2.1 Factors affecting workability 6.3 Consistence 6.3.1 Measuring consistence 6.3.2 Control of consistence 6.4 Cohesiveness 6.5 Bleeding 6.6 Plastic cracking 6.6.1 Plastic-shrinkage cracking 6.6.2 Plastic settlement cracking 6.7 Slump loss 6.8 The “green” state 6.9 The density of fresh concrete 6.9.1 Measuring the density of fresh concrete 6.10 Air content of fresh concrete 6.10.1 Measuring air content 6.11 Conclusion Further reading References Ch.7 Strength of hardened concrete 7.1 Introduction 7.2 Methods of measuring strength 7.2.1 Compressive strength 7.2.2 Tensile strength 7.3 The way concrete fails 7.4 The relationship between com-pressive and tensile strength 7.5 Factors which influence the strength of concrete 7.5.1 The nature of concrete 7.5.2 Intrinsic factors 7.5.3 Extrinsic factors 7.6 Bond strength Further reading References Ch.8 Deformation and volume change of hardened concrete 8.1 Introduction 8.1.1 Importance of deformations in concrete structures 8.1.2 Components of deformation 8.1.3 Factors affecting concrete deformations 8.1.4 Design approaches 8.1.5 Levels of estimation 8.2 Elastic deformation of concrete 8.2.1 Elastic modulus (Ec) 8.2.2 Factors affecting elastic modulus 8.2.3 Estimation of elastic modulus 8.2.4 Structural implications of elastic modulus 8.2.5 Elastic modulus in tension 8.2.6 Elastic modulus of high-strength concrete (HSC) 8.2.7 Tests to determine elastic modulus 8.2.8 Comparison of static and dynamic moduli 8.2.9 Micro-rheological models for estimating concrete elastic modulus 8.3 Poisson\'s ratio 8.3.1 Estimating Poisson’s ratio 8.4 Creep of concrete 8.4.1 Creep expressions 8.4.2 Characteristics of creep 8.4.3 Structural effects of creep 8.4.4 Factors affecting creep of concrete 8.4.5 Estimation of creep 8.4.6 Other aspects including theoretical considerations 8.4.7 Creep testing of concrete 8.4.8 Creep literature and further reading 8.5 Shrinkage of concrete 8.5.1 Characteristics of shrinkage 8.5.2 Structural effects of shrinkage 8.5.3 Factors affecting shrinkage 8.5.4 Estimation of shrinkage 8.5.5 Other aspects: shrinkage mechanisms and shrinkage tests 8.5.6 Tests for shrinkage 8.6 Creep and shrinkage of high-strength concrete (HSC) 8.6.1 Creep of HSC 8.6.2 Shrinkage of HSC 8.6.3 Creep and shrinkage predictions for HSC 8.7 Thermal movement 8.7.1 Effect of aggregate on thermal movement References Ch.9 Durability of concrete 9.1 Introduction 9.2 Factors affecting concrete durability 9.3 Concrete properties in relation to durability 9.3.1 Transport properties 9.3.2 Mechanical and physical properties 9.3.3 Chemical properties 9.4 Mechanisms of deterioration 9.4.1 General aspects 9.4.2 Mechanical and physical processes affecting durability 9.4.3 Chemical factors and processes affecting durability 9.4.4 Detailed discussion of some common mechanisms of chemical attack 9.4.5 Corrosion of reinforcement 9.4.6 Damage caused by electromagnetic and nuclear radiation 9.5 Guidelines for ensuring durability 9.5.1 Concrete subjected to water-borne chemical attack 9.5.2 Concrete subject to air-borne chemical attack 9.5.3 Concrete subject to physical attack 9.5.4 Design and construction considerations for ensuring durability 9.6 Recent approaches to durability of reinforced concrete structures 9.6.1 General 9.6.2 From prescriptive to performance-based durability design 9.6.3 Different strategies for service life design 9.6.4 Service life models for reinforced concrete structures 9.6.5 Test methods for concrete cover properties 9.7 Performance-based durability testing, design and specification in South Africa 9.7.1 General 9.7.2 Durability index test methods 9.7.3 Application of the durability index approach References Ch.10 Alkali-silica reaction 10.1 Introduction 10.2 Reactions between alkalis and aggregate: terms used 10.3 Alkali-silica reaction in South Africa and Namibia 10.4 Mechanism of expansion and cracking 10.5 Factors that influence alkali-silica reaction 10.5.1 Alkalis 10.5.2 Aggregate type 10.5.3 Environmental conditions 10.6 Minimising the risk of ASR 10.6.1 General considerations 10.6.2 Cement 10.6.3 Potentially reactive aggregates 10.6.4 Environment 10.7 Methods and criteria for evalua-ting aggregate, cement and cementitious materials 10.7.1 Evaluating aggregates 10.7.2 Evaluating common cements and sup-plementary major constituents (extenders) 10.8 Calculating the alkali content of concreting materials 10.8.1 General 10.8.2 CEM I cement 10.8.3 Other SANS 50197-1 cements 10.8.4 Mixing water 10.8.5 Chemical admixtures 10.9 Investigation of damaged structures 10.10 Diagnosis of ASR in damaged structures 10.10.1 Appearance of the structure 10.10.2 Examination of concrete specimens 10.11 Detailed investigation 10.11.1 Expansion and cracking 10.11.2 Concrete strength 10.11.3 Structural severity rating 10.11.4 Appraisal of durability and serviceability 10.12 Repair procedures 10.12.1 No more reaction and expansion 10.12.2 Reaction and expansion continuing References Ch.11 Concrete mix design 11.1 Introduction 11.2.1 Applying the method 11.2 C&CI method 11.3 Mix design for special applications 11.3.1 Concrete mixes for pumping 11.3.2 Air-entrained concrete (AEC) 11.3.3 High-density concrete 11.3.4 Low-density concrete 11.3.5 Mixes for compaction by heavy vibration 11.3.6 Mixes made with very fine sand 11.3.7 Mine-shaft linings 11.3.8 Sliding formwork 11.4 Designing a mix by eye 11.5 Examples of calculations References Ch.12 Manufacture and handling of concrete 12.1 Introduction 12.2 Planning 12.3 Production of concrete 12.4 Control, handling and storage of materials 12.4.1 Receiving inspection 12.4.2 Material storage 12.5 Batching 12.5.1 Batching by volume 12.5.2 Batching by mass 12.5.3 Measurement and control of water 12.5.4 Batching of admixtures 12.5.5 Maintenance and calibration 12.6 Mixing 12.6.1 Hand mixing 12.6.2 Machine mixing 12.7 Transporting 12.7.1 Loss of workability 12.7.2 Contamination 12.7.3 Segregation 12.7.4 Selecting the method of transporting 12.7.5 Types of equipment 12.8 Placing concrete 12.8.1 Placing concrete under water 12.8.2 Grouted concrete 12.9 Compaction 12.9.1 Compaction without mechanical vibration 12.9.2 Compaction with mechanical vibration 12.9.3 Revibration 12.10 Working the surface of concrete in the “green” state 12.11 Protection and curing 12.11.1 Protection 12.11.2 Curing 12.12 Concreting in cold weather 12.12.1 Cement type 12.12.2 Aggregate protection 12.12.3 Lagging of water pipes 12.12.4 Heating the mixing water 12.12.5 Batching and mixing 12.12.6 Concrete temperature 12.12.7 Transporting and placing 12.12.8 Protection and curing 12.13 Concreting in hot weather 12.14 Finishing concrete 12.15 Construction joints 12.15.1 Positioning 12.15.2 Featuring joints 12.15.3 Forming Further reading References Ch.13 Formwork 13.1 Introduction 13.2 Purpose and requirements of formwork 13.3 Types of formwork 13.3.1 Permanent formwork 13.3.2 Temporary formwork 13.3.3 Slip-forming 13.3.4 Climbing formwork 13.3.5 Slab formwork principles 13.4 Form-face materials 13.4.1 Wood-based materials 13.4.2 Metal form-face materials 13.4.3 Plastics and rubber 13.4.4 Permanent formwork 13.4.5 Controlled permeability formwork (CPF) 13.5 Formwork ties 13.6 Formwork release agents 13.6.1 Types of release agents 13.7 Care of formwork 13.8 Safety measures 13.9 Striking formwork 13.9.1 Reference to standard tables 13.9.2 Methods to determine concrete strength before striking formwork 13.10 Glossary Acknowledgements Further reading References Ch.14 Reinforcement 14.1 Introduction 14.1.1 Terminology 14.2 Types of reinforcement 14.2.1 Mild steel bars 14.2.2 High-yield bars 14.2.3 Steel fabric 14.3 Alternative reinforcement for concrete 14.3.1 Fusion-bonded epoxy-coated steel reinforcement 14.3.2 Galvanised steel reinforcement 14.3.3 Stainless steel reinforcement 14.4 Cover to reinforcement 14.5 Control of reinforcement on site 14.5.1 Fixing of reinforcement 14.5.2 Splicing reinforcement 14.5.3 Surface corrosion 14.6 Prestressed concrete 14.6.1 Principles Further reading References Ch.15 Thermal properties of concrete and temperature development at early ages in large concrete elements 15.1 Introduction 15.2 Development of thermal stresses in concrete structures 15.2.1 Free thermal movement of concrete 15.2.2 Restraint of thermal movement and development of stress 15.3.2 Thermal conductivity 15.3 The thermal properties of concrete 15.3.1 Specific heat capacity 15.4 Heat evolution from cementing reactions 15.4.1 Rate of heat evolution and the hydration process 15.4.2 Determination of heat evolution of cementitious binders 15.4.3 The concrete maturity heat rate 15.5 Finite difference temperature prediction model 15.5.1 Operation of the temperature prediction model 15.6 Practical measures for avoiding thermal cracking at early ages 15.6.1 Practical measures at the design and pre-construction stage 15.6.2 Practical measures during the construction stage References Temperature Model file://Ballim Temp Model.xlsCh.16 Control of concrete quality 16.1 Introduction 16.2 Factors affecting quality of concrete 16.3 Codes, specifications and control systems 16.4 Practical quality control 16.4.1 Target design strength 16.4.2 Mix design 16.4.3 Sampling and testing 16.4.4 Acceptance criteria 16.4.5 Presentation of control data 16.4.6 Non-compliance Further reading References Ch.17 High-performance concrete 17.1 Introduction 17.2 Constituent materials and mix design 17.2.1 Cementitious materials 17.2.2 Aggregates 17.2.3 Admixtures 17.2.4 Mix design 17.3 Manufacture, casting and curing 17.3.1 Concrete manufacture 17.3.2 Placing of HPC 17.3.3 Protection and curing of HPC 17.4 Properties of HPC 17.4.1 Microstructure 17.4.2 Hardening process 17.4.3 Hydration heat development 17.4.4 Compressive strength 17.4.5 Strength development 17.4.6 Deformation characteristics 17.4.7 Durability 17.4.8 Costs 17.5 Ultra-high-performance concrete References Ch.18 High-density concrete 18.1 Introduction 18.2 Choice of materials 18.2.1 Aggregates 18.2.2 Cement 18.2.3 Admixtures 18.3 Mix proportions 18.4 Manufacture of concrete 18.4.1 Storage and handling of materials 18.4.2 Transporting and placing 18.4.3 Testing and control 18.5 Physical properties References Ch.19 Low-density concrete 19.1 Introduction 19.2 Low-density aggregates 19.2.1 Furnace clinker and ash 19.2.2 Expanded slag 19.2.3 Expanded clay and shale 19.2.4 Sintered fly ash 19.2.5 Exfoliated vermiculite 19.2.6 Expanded perlite 19.2.7 Wood particles 19.2.8 Plastic particles 19.2.9 Pumice and diatomite 19.3 Low-density-aggregate concrete 19.3.1 Materials 19.3.2 Production and manufacture 19.3.3 Properties 19.4 Cellular or aerated concrete 19.4.1 Gas concrete 19.4.2 Foamed concrete 19.5 Durability of low-density concrete Further reading References Ch.20 Self-compacting concrete 20.1 Introduction 20.2 Fresh concrete properties 20.2.1 Rheology 20.2.2 Workability 20.2.3 Filling ability 20.2.4 Segregation resistance 20.2.5 Passing ability 20.3 Testing of fresh concrete properties 20.3.1 Slump flow test 20.3.2 Slump flow test and blocking resistance 20.3.3 V-funnel test 20.3.4 U-box test 20.3.5 L-box test 20.3.6 Segregation resistance (sieve) test 20.4 Specifying SCC based on fresh concrete properties 20.5 Mix design principles 20.5.1 Introduction 20.5.2 Mix design according to the General Method 20.5.3 Limiting values for mix proportions 20.6 Constituent materials 20.6.1 General 20.6.2 Cement and additional powder materials 20.6.3 Aggregates 20.6.4 Admixtures 20.7 Mixing, handling and curing 20.8 Hardened concrete properties 20.8.1 General 20.8.2 Deformation and volume change 20.8.3 Durability Further reading References Ch.21 Fibre-reinforced concrete 21.1 Introduction 21.2 Types of fibre 21.2.1 Glass 21.2.2 Steel 21.2.3 Synthetic fibres 21.2.4 Natural fibres 21.3 Theoretical considerations 21.3.1 Introduction 21.3.2 Fundamentals of fibre reinforcement 21.3.3 Fibre effectiveness 21.3.4 Stress-strain behaviour 21.3.5 The concept of toughness 21.4 New developments 21.4.1 High-performance fibre-reinforced cement-based composites 21.4.2 Textile concrete Further reading References Ch.22 Precast concrete products 22.1 Introduction 22.2 Masonry units and paving blocks 22.2.1 Characteristics 22.2.2 Manufacture 22.2.3 Development of strength 22.2.4 Water content 22.2.5 Mix proportions 22.2.6 Determining the best blend of aggregates 22.2.7 Curing 22.3 Concrete retaining blocks 22.3.1 Characteristics 22.3.2 Manufacture 22.4 Precast concrete suspended slabs 22.4.1 Characteristics 22.4.2 Manufacture 22.5 Concrete pipes 22.5.1 Manufacture 22.6 Concrete roof tiles 22.6.1 Characteristics 22.6.2 Manufacture Further reading References Ch.23 Shotcrete 23.1 Introduction 23.2 Uses of shotcrete 23.3 Shotcreting processes 23.3.1 Dry-mix process 23.3.2 Wet-mix process 23.4 Materials 23.4.1 Cementitious materials 23.4.2 Aggregates 23.4.3 Water 23.4.4 Admixtures 23.4.5 Reinforcement 23.5 Shotcrete mix design 23.6 Manufacture and placing of shotcrete 23.6.1 Mixing and batching 24.6.2 Placing time 23.6.3 Placing equipment 23.6.4 Surface preparation 23.6.5 Reinforcement 23.6.6 Addition of water 23.6.7 Rebound 23.6.8 Curing 23.6.9 Safety, health and environment 23.6.10 Shotcrete operators 23.7 Testing 23.7.1 Thickness control 23.7.2 Surface finish 23.7.3 Compressive strength 24.7.4 Workability of fresh shotcrete 23.7.5 Density 23.7.6 Toughness and energy absorption 23.7.7 Bond strength 23.8 Properties of hardened shotcrete 23.8.1 Water content 23.8.2 Compressive strength and variability 23.8.3 Density 23.8.4 Drying shrinkage 23.9 Fibre-reinforced shotcrete References Ch.24 Roller-compacted concrete 24.1 Introduction 24.2 Properties of RCC 24.3 RCC for dams 24.3.1 Introduction 24.3.2 Modern RCCs 24.3.3 Materials 24.3.4 Mix parameters 24.3.5 Mix proportioning methods 24.3.6 Construction 24.3.7 Quality control 24.4 RCC for pavements 24.4.1 Introduction 24.4.2 Materials 24.4.3 Mix proportioning 24.4.4 Thickness design 24.4.5 Subgrades and subbases 24.4.6 Control of transverse cracking 24.4.7 Joint sealing 24.4.8 Construction Further reading References Ch.25 No-fines concrete 25.1 Introduction 25.2 Applications 25.3 Materials 25.3.1 Cement 25.3.2 Water 25.3.3 Aggregates 25.4 Mix proportions 25.5 Manufacture 25.5.1 Batching and mixing 25.5.2 Placing 25.5.3 Construction joints 25.5.4 Formwork 25.5.5 Reinforcement 25.5.6 Curing 25.5.7 Provision for services 25.5.8 Rendering and plastering 25.5.9 Screeding of NFC 25.5.10 Weep-holes 25.6 Physical properties 25.6.1 Compressive strength 25.6.2 Other strengths 25.6.3 Density 25.6.4 Drying shrinkage 25.6.5 Absorptiveness 25.6.6 Capillary action 25.6.7 Thermal properties References Ch.26 Sand-cement mixes – mortars, plasters, and screeds 26.1 Introduction 26.2 Mortar and plaster 26.2.1 Materials 26.2.2 Mix proportions for normal applications 26.2.3 Properties of fresh mortar and plaster 26.2.4 Properties of hardened mortar and plaster 26.2.5 Practical assessment of sand quality and workability of mixes 26.2.6 Applications 26.2.7 Common problems 26.2.8 Estimating quantities and wastage 26.3 Sand-cement floor screeds 26.3.1 Materials 26.3.2 Mix proportions for normal applications 26.3.3 Properties of fresh sand-cement screed mixes 26.3.4 Properties of hardened sand-cement screed mixes 26.3.5 Practical assessment of sand quality for screeds and workability of mixes 26.3.6 Applications 26.3.7 Common problems 26.3.8 Estimating quantities and wastage Further reading References Ch.27 Concrete repair 27.1 Introduction 27.2 Condition assessment of concrete structures 27.2.1 Methodology 27.2.2 In-situ assessment 28.2.3 Laboratory tests 27.3 Repair strategies and techniques 27.3.1 General considerations 27.3.2 Repair principles for structures damaged by reinforcement corrosion 27.3.3 Patch repairs and bonded concrete overlays 27.3.4 Surface protection systems and coatings 27.3.5 Penetrating corrosion inhibitors 27.3.6 Temporary electrochemical techniques 27.3.7 Cathodic protection systems 27.3.8 Crack repair 27.3.9 Structural strengthening References Index Exit