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Precast concrete raft units

Author: John W Bull
Publisher: Glasgow : Blackie ; New York : Van Nostrand Reinhold, 1991.
Edition/Format:   Print book : EnglishView all editions and formats
Summary:

These advantages have been recognized for precast concrete raft pavement units (raft units) since their introduction in the 1930s.

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Additional Physical Format: Online version:
Precast concrete raft units.
Glasgow : Blackie ; New York : Van Nostrand Reinhold, 1991
(OCoLC)555824908
Document Type: Book
All Authors / Contributors: John W Bull
ISBN: 0442302967 9780442302962 0216926963 9780216926967
OCLC Number: 20671059
Description: xii, 193 pages : illustrations ; 24 cm
Contents: 1 A review of precast concrete pavements and rafts.- 1.1 Introduction.- 1.2 New precast pavement construction.- 1.2.1 Airfield construction.- 1.2.2 Road construction.- 1.2.3 Precast concrete slabs.- 1.2.4 Slab reinforcement.- 1.2.5 Slab prestressing.- 1.2.6 Fibre reinforcement.- 1.2.7 Precast operations.- 1.3 Pavement repairs with slabs.- 1.4 Concrete pavement design.- 1.4.1 Semi-infinite slabs.- 1.4.2 Finite-sized slabs.- 1.4.3 Concrete fatigue relationships.- 1.4.4 Subgrade loading.- 1.4.5 Slab handling stresses.- 1.5 Joints.- 1.6 Construction.- 1.7 Summary.- 2 Analytical procedures for concrete pavements.- 2.1 Introduction.- 2.2 Concrete pavement subgrade support characterization.- 2.2.1 The dense liquid foundation.- 2.2.2 The elastic solid foundation.- 2.2.3 Can the dense liquid and the elastic solid be compared?.- 2.3 Closed-form solutions for concrete pavement responses.- 2.3.1 Slab resting on a dense liquid foundation.- 2.3.2 Slab resting on an elastic solid foundation.- 2.3.3 Limitations of the closed-form solutions.- 2.4 Computerized numerical analysis methods for concrete slabs-on-grade.- 2.4.1 Computer programs for concrete pavements.- 2.5 Principles of dimensional analysis applied to concrete pavement data interpretation.- 2.5.1 Dimensional analysis and data interpretation.- 2.5.2 Dimensional analysis applied to pavement systems.- 2.5.3 Implications of dimensional analysis: some examples.- 2.6 Conclusions.- 3 The design of precast concrete raft-type pavements.- 3.1 Introduction.- 3.1.1 Raft production and use.- 3.1.2 Raft design and laying.- 3.2 Previous methods of analysis.- 3.2.1 Pre-computer methods of analysis.- 3.3 Repair criteria.- 3.4 Loading.- 3.4.1 Standard axle loadings.- 3.4.2 Non-standard axle loadings.- 3.5 Computer modelling.- 3.6 Raft pavement design method.- 3.7 Design example.- 3.8 Conclusions.- 4 The behaviour of precast concrete raft pavements under fatigue loading with special reference to their use in port areas.- List of symbols.- 4.1 Introduction.- 4.2 Port loading.- 4.2.1 Dynamic loading.- 4.2.2 Static loading.- 4.3 Fatigue behaviour of concrete.- 4.3.1 Plain concrete.- 4.3.2 Reinforced concrete.- 4.3.3 Fatigue models.- 4.3.4 Port pavement model.- 4.4 Structural analysis.- 4.4.1 Analysis models.- 4.4.2 Precast concrete pavement models.- 4.5 Finite element analysis.- 4.5.1 Previous work.- 4.5.2 Current analysis.- 4.6 Conclusions.- 5 Performance improvement of precast, reinforced and prestressed concrete raft units (beam and slab) under impulsive loading.- 5.1 Introduction.- 5.2 Load characteristics.- 5.2.1 Types of impulsive loads.- 5.2.2 Load modelling.- 5.3 Analytical studies.- 5.3.1 Analytical methods.- 5.3.2 Non-linear model.- 5.3.3 Finite element model for beams.- 5.3.4 Finite element model for slabs and handrails.- 5.3.5 Dynamic solution of equilibrium equation.- 5.4 Experimental studies.- 5.4.1 Test program for beams.- 5.4.2 Test program for slabs and handrails.- 5.4.3 Verification of analytical results for beams and slabs.- 5.5 Concepts of performance improvement for impulsive loading.- 5.5.1 Concepts of performance improvement for beams.- 5.5.2 Concepts of performance improvement for slabs and handrails.- 5.6 Conclusions.- 6 The behaviour of plain undowelled raft-type concrete pavement.- 6.1 Introduction.- 6.2 Laying of a plain cement concrete pavement.- 6.3 Effects of temperature change and reversible moisture movement.- 6.4 Structural response.- 6.4.1 Deflection.- 6.4.2 Joint efficiency.- 6.5 Effects of pumping.- 7 Rapid pavement repair using precast concrete rafts.- 7.1 Introduction.- 7.2 Preliminary considerations.- 7.3 Surfacing types.- 7.3.1 Mat systems.- 7.3.2 Flush repair systems.- 7.4 Key factors in repair design.- 7.4.1 Loading.- 7.4.2 Durability.- 7.4.3 Specific military needs.- 7.4.4 Ride quality.- 7.4.5 Installation speed.- 7.5 Repair design.- 7.5.1 Bulk fill.- 7.5.2 Base layer.- 7.6 Raft design.- 7.6.1 Raft size.- 7.6.2 Raft edge detail.- 7.6.3 Raft reinforcement.- 7.7 Repair boundary.- 7.8 Special equipment.- 7.8.1 Subsurface screed beam.- 7.8.2 Raft-lifing beam.- 7.8.3 Concrete cutting saws.- 7.9 Practical experience.- 7.9.1 Early tests.- 7.9.2 Recent developments.- 7.9.3 Heavy aircraft tests.- 7.9.4 Current experience.- 7.10 Road repairs.- 7.11 Future developments.- 8 A review of the analysis, design, manufacture and use of precast concrete raft pavement units.- 8.1 Introduction.- 8.2 Manufacture of raft units.- 8.3 Materials used in raft manufacture.- 8.4 The analysis of raft unit pavements.- 8.4.1 Concrete stress and subgrade stress.- 8.4.2 Analytical and numerical analysis.- 8.4.3 Loading.- 8.5 On-site laying raft units.- 8.5.1 Subbase.- 8.5.2 Joints.- 8.6 Conclusions.- References.
Responsibility: edited by John W. Bull.

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