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In spite of the increasing use and demand for lightweight aggregate concrete (LWAC), there is still a lack of adequate explanations to understand the mechanisms responsible for the strength and durability properties of LWAC. This book is written to give an overall picture of LWAC, from the historical background, aggregate production, proportioning and production of concrete, to applications in structures. Physical properties and chemical durability are described in detail. The physical properties include density, strength, shrinkage, and elasticity. Chemical durability includes resistance to acids, chloride ingress, carbonation, and freeze-thaw resistance. Fire resistance is also included, which is seldom considered, but is a very important aspect of the safety of the structure.
Microstructure development and its relation to the durability properties of LWAC generally are not highlighted in the literature. The development of bonds, the microstructure with different binder systems, and different types of lightweight aggregates are explained. They show how lightweight aggregate concrete differs from normal weight concrete. The chapters on chloride ingress and freeze-thaw resistance are detailed because of the use of LWAC in offshore construction.
The economical aspects of using LWAC are also reviewed. Emphasis is placed on the fact that although the cost of LWAC is high, the total cost of construction has to be considered, including the cost of transport, reinforcement, etc. When these are considered then LWAC becomes cheaper and attractive. The life cycle cost of the concrete is another consideration for calculating long-term savings on maintenance costs.
Scientists, researchers, engineers and technicians in the concrete industry. Also useful for architects and materials engineers.
Historical Background of Lighweight Aggregate Concrete
Production of Lightweight Aggregates and Its Properties
Natural Lightweight Aggregates
Supplementary Cementing Materials
High Performance Cement
LWAC With a Mineral Admixture
Mix Proportioning of No-Fines LWAC
Mix Proportioning of Structural Lightweight Aggregate Concrete
Lightweight Aggregate and Its Supply
Remarks on Mix Design
Transportation and Placing of Concrete
Testing of LWAC Related to Production
Lightweight Aggregate Concrete Microstructures
Interfaces in Concrete
Pore Structure of Lightweight Aggregate
Microstructure of the Interfacial Transition Zone
Inter-relation of Microstructure and the Strength of LWAC
Physical Properties of Lightweight Aggregate Concrete
Density and Strength
Elastic Compatibility and Microcracking Shrinkage and Creep of LWAC
Thermal Conductivity of LWAC
Durability of Lightweight Aggregate Concrete to Chemical Attack
Carbonation and Corrosion
Chloride Ion Penetration
Fire Resistance of Lightweight Aggregate Concrete
Behavior of Concrete at Elevated Temperature
Fire Test of LWAC
Freeze-Thaw Resistance of Lightweight Aggregate Concrete
Freeze-Thaw Resistance of LWAC
Applications of Lightweight Aggregate Concrete
Lightweight Concrete and Thermal Insulation
Lightweight Aggregates - Horticulture Applications
LWAC in Shipbuilding
LWAC in the Building Industry
Advantages and Disadvantages of Using LWAC
Economical Aspects of Using LWAC
Examples of Applications
- No. of pages:
- © William Andrew 2002
- 28th October 2002
- William Andrew
- eBook ISBN:
- Hardcover ISBN:
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