Management of Structure Formation and Properties of Cement Concretes

Preface
Contents
Part I: Heavy Concretes and Mechanical Vibration
Chapter 1: State-of-the-Art and Theoretical Background
	1.1 Technologies for the Manufacture of Reinforced Concrete Goods and Structures of Annular Cross-Section with Functionally Gr...
	1.2 Features of the Functionally Gradient Structure of Centrifuged Concretes
	1.3 Theoretical Grounds of Calculation Methods for Centrifuged Reinforced Concrete Structures with Annular Cross-Sections
	1.4 Working Concepts, Goals, and Objectives
Chapter 2: Technology and Experimental Setup for Manufacturing Centrifuged (CF) and Vibro-centrifuged (VCF) Concrete Elements ...
	2.1 Theoretical Grounds of the Formation of the Functionally Gradient Structure of Concrete CF- and VCF-Elements of Annular Cr...
	2.2 Experimental Centrifugation Facilities
		2.2.1 Functional Gradient of Centrifuged Concrete
		2.2.2 Centrifugation Setups
	2.3 Combined Unit for Centrifugation and Vibration Centrifugation, Its Features, and Calculations of Parameters
	2.4 Selection of Basic Concrete Compositions of Test Samples
	2.5 Resonance Method
	2.6 Instrumental Methods of Experimental Studies of Prototypes
	2.7 Conclusions
Chapter 3: Aggregate and Local Characteristics of Vibrated (V), Centrifuged (CF), and Vibro-Centrifuged (VCF) Concretes
	3.1 Schedule and Methodology of Experimental Studies of the Ultimate Characteristics of Concrete
		3.1.1 Manufacture Methods
		3.1.2 Test Method
	3.2 Aggregate Structural Characteristics of V-, CF-, and VCF-Concretes
		3.2.1 Results of Studies of the Aggregate Characteristics of Concrete
		3.2.2 Analysis of Aggregate Density, Strength, Ultimate Deformations, Modulus of Elasticity, and Diagrams of Concrete Deformat...
	3.3 Local Design Characteristics of CF- and VCF-Concretes of Functionally Gradient Cross-Sections
		3.3.1 Methods of Experimental Studies of the Local Characteristics of Concrete by Ultrasonic Method
		3.3.2 Analysis of the Results of Studies of the Local Characteristics of Concrete
			Compressive and Tensile Strength of the Layers of Functionally Gradient Cross-Section
			Changes in the Ultimate Deformations Under Compression and Tension in the Layers of the Functionally Gradient Cross-Section
			Features of the Change in the Elastic Modulus for the Layers of Functionally Gradient Cross-Section
			Transformation of Deformation Diagrams for the Various Layers of Functionally Gradient Cross-Section
			Influence of Age on the Differential Characteristics of the Concrete Layers of Functionally Gradient Cross-Section
	3.4 Conclusions
Chapter 4: Modeling of Aggregate and Local Structural Characteristics of V-, CF-, and VCF-Concretes
	4.1 Calculation of the Aggregate Characteristics of V-, CF-, and VCF-Concretes
		4.1.1 Standard and Design Resistances of V-, CF-, and VCF-Concretes
		4.1.2 Differences in the Aggregate Structural Characteristics of V-, CF-, and VCF-Concretes Depending on the Manufacturing Tec...
			Differences in the Aggregate Characteristics of Concretes Depending on the Manufacturing Technology
			Determination of the Aggregate Characteristics of Vibrated, Centrifuged, and Vibro-centrifuged Concretes Depending on Age
		4.1.3 Analytical Description of Stress-Strain Diagrams Under Compression and Tension of V-, CF-, and VCF-Concretes, Their Mutu...
	4.2 Calculation of Local Structural Characteristics of CF- and VCF-Concrete Depending on Technological Parameters
	4.3 Conclusions
Chapter 5: Calculation of the Load-Bearing Capacity of V-, CF-, and VCF-Reinforced Concrete Columns, Taking into Account the S...
	5.1 Standards and Regulatory for Calculating the Load-Bearing Capacity of Short CF- and VCF-Columns, Taking into Account the S...
	5.2 Diagram Approach to the Calculation of the Load-Bearing Capacity of Short V-, CF-, and VCF-Columns, Taking into Account th...
		5.2.1 Iterative Calculation of the Strength of Short Centrally Compressed Reinforced Concrete Columns
		5.2.2 Approximate Calculation of the Strength of Short Centrally Compressed Reinforced Concrete Columns
		5.2.3 Simplified Calculation of the Strength of Short Centrally Compressed Reinforced Concrete Columns
	5.3 Schedule and Methodology of the Experiment
		5.3.1 Features of Manufacturing and Testing of Prototypes
		5.3.2 Analysis of the Results of Experimental Studies
			Load-Bearing Capacity
			The Influence of the Class of Reinforcement
			Deformability
	5.4 Schedule, Methodology, and Results of Numerical Experiments
	5.5 Comparison of Experimental and Theoretical Results Obtained for V-, CF-, and VCF-Reinforced Concrete Columns According to ...
		5.5.1 Determination of the Load-Bearing Capacity of V-, CF-, and VCF-Reinforced Concrete Columns According to the Standard, Ag...
		5.5.2 Calculation of the Load-Bearing Capacity of V-, CF-, and VCF-Reinforced Concrete Columns by the Proposed Diagram Methods...
	5.6 Conclusions
Chapter 6: Redesign and Improvement of CF- and VCF-Reinforced Concrete Columns, Taking into Account the Technology of Their Ma...
	6.1 Technological, Structural, and Design Advantages of the Proposed Actual Structures
	6.2 Redesign of Actual Reinforced Concrete Column and Calculation of the Load-Bearing Capacity of Such a VCF-Column
	6.3 Implementation of the Research Results in the Practice of Building and Designing and Regulatory Documents
	6.4 Conclusions
PartPart10005399055
	Common Conclusions to Part I
Part II: Cement, Foam, Fiber-Foam Concretes and Electrophysical Impacts
Chapter 7: Classification of Electrophysical Methods Regulating the Properties of Cement Concretes
	7.1 Existing Methods of Electrophysical Impact in Cement Concrete Technology
		7.1.1 Electrothermal Action on Concretes and Concrete Mixtures
		7.1.2 Electromagnetic Activation of Concrete Mixture Components
			Electromagnetic Activation of Mixing Water
			Electrophysical Impact on Concrete Aggregates
			Electrophysical Effect on Cement
			Electrophysical Impact on Cement Slurries and Concrete Mixtures
	7.2 Conclusions
Chapter 8: Electrophysical Effect on Concrete Mixtures and Their Components
	8.1 Treatment of Mixing Water for Concrete
	8.2 Processing of Aggregates for Concrete
	8.3 Processing of Cement for the Preparation of Concretes and Mortars
	8.4 Processing of Cement Dough for Concrete
	8.5 Concrete Mixture Treatment
	8.6 Systematization of Ideas About the Mechanisms of Electrophysical Effects on the Concrete Mixture and Its Components
	8.7 Conclusions
Chapter 9: Features of Electrophysical Impact on Mortar and Concrete Mixtures
	9.1 Optimization of the Parameters of Electric Treatment of Concrete Mixtures According to the Criterion of Concrete Strength
	9.2 Influence of the Composition of the Concrete Mixture on the Efficiency of Electrical Activation
	9.3 Influence of High-Voltage Electric Field of Corona Discharge on Mineral Components of Concrete
	9.4 Influence of High-Voltage Electrostatic Field on the Rheological Properties of Mineral Powders
	9.5 The Idea and Essence of the Activation of Aerated Concrete Mixtures with Low-Power AC Electrophysical Impact
	9.6 Theoretical Substantiation of the Expediency of Activation of Aerated Concrete Mixtures by Low-Power AC Electrophysical Im...
	9.7 Characteristics of the Optimal Activation Mode for Foam and Fiber-Foam Concrete by Low-Power Variable Electrophysical Impa...
	9.8 Identifying Rational Modes of Low-Power Electrophysical Impact on Foam and Fiber-Foam Concrete Mixtures and Concretes
	9.9 Identification of the Optimal Mode of Activation of Foam and Fiber-Foam Concrete by Low-Energy-Consuming Electrophysical I...
	9.10 Features of Changes in the Structure Formation and Properties of Foam and Fiber-Foam Concrete Mixtures and Concretes Duri...
	9.11 Conclusions
PartPart20005399057
	Common Conclusions to Part II
References
Index