Properties Of Fresh And Hardened Concrete Containing Supplementary Cementitious Materials

This volume represents the current knowledge on the effect of SCMs (slag, fly ash, silica fume, limestone powder, metakaolin, natural pozzolans, rice husk ash, special SCMs, ternary blends) on the properties of fresh and hardened concrete (e.g. early strength development, workability, shrinkage) and curing requirements. Other topics treated in the book are postblending vs preblending, implications of SCM variability, interaction between SCM and commonly used admixtures (e.g. superplasticizers, air entrainers).

This book is an attempt to consolidate the published research related to the use of Supplementary Cementing Materials in cement and concrete. It comprises of five chapters. Each chapter is devoted to a particular supplementing cementing material. It is based on the literature/research findings published in journals/conference proceeding, etc. Topics covered in the book are; coal fly ash, silica fume (SF), granulated blast furnace slag (GGBS), metakaolin (MK), and rice husk ash (RHA). Each chapter contains introduction, properties of the waste material/by-product, its potential usage, and its effect on the properties of fresh and hardened concrete and other cement based materials.

The use of Supplementary cementing materials (SCMs) dates back to the ancient Greeks who incorporated volcanic ash with hydraulic lime to create a cementitious mortar. Supplementary cementing materials (SCMs) subsidize to the properties of hard-edged concrete through hydraulic or pozzolanic movement. Usual examples are fly ashes, slag cement, and silica fume. These can be used exclusively with Portland or blended cement or in different combinations in order to concrete to make concrete mixtures more economical, reduce permeability, increase strength, or influence other concrete properties. The key to concrete's success is its versatility and no other sector of the construction industry utilizes this attribute more than the manufactured concrete products industry. Concrete can be designed to withstand the harshest environments while taking on the most inspirational forms. This book is an attempt to integrate the current trends and reviews related to the use of Supplementary Cementing Materials in cement and concrete. The book is packed with a range of topics from understanding the fundamental science behind using Supplementary Cementing Materials (SCMs) to practical examples of their use in real situations. It includes a wide range of studies on the properties of the waste material/by-product, its potential usage, and its effect on the properties of fresh and hardened concrete and other cement based materials. With these issues and complexities in mind, the purpose of this book is to provide policymakers with information and analysis necessary to develop regulations and design instruments that have the greatest potential to remove impediments to increased SCM consumption in world and optimize SCM utilization in a manner that is consistent with evolving market conditions in the short, medium, and long terms. It describes how supplementary cementitious materials (SCMs) and blended cements are used in paving concrete as one way of increasing the overall sustainability of concrete mixturesThis book serves as a guiding tool for students, engineers, and practitioners to optimize the use of supplementary cementing materials to improve concrete performance.

Aside from water the materials which are used by mankind in highest quantities arecementitious materials and concrete. This book shows how the quality of the technical product depends on mineral phases and their reactions during the hydration and strengthening process. Additives and admixtures infl uence the course of hydration and the properties. Options of reducing the CO2-production in cementitious materials are presented and numerous examples of unhydrous and hydrous phases and their formation conditions are discussed. This editorial work consists of four parts including cement composition and hydration, Special cement and binder mineral phases, Cementitious and binder materials, and Measurement and properties. Every part contains different contributions and covers a broad range within the area. Contents Part I: Cement composition and hydration Diffraction and crystallography applied to anhydrous cements Diffraction and crystallography applied to hydrating cements Synthesis of highly reactive pure cement phases Thermodynamic modelling of cement hydration: Portland cements – blended cements – calcium sulfoaluminate cements Part II: Special cement and binder mineral phases Role of hydrotalcite-type layered double hydroxides in delayed pozzolanic reactions and their bearing on mortar dating Setting control of CAC by substituted acetic acids and crystal structures of their calcium salts Crystallography and crystal chemistry of AFm phases related to cement chemistry Part III: Cementitious and binder materials Chemistry, design and application of hybrid alkali activated binders Binding materials based on calcium sulphates Magnesia building material (Sorel cement) – from basics to application New CO2-reduced cementitious systems Composition and properties of ternary binders Part IV: Measurement and properties Characterization of microstructural properties of Portland cements by analytical scanning electron microscopy Correlating XRD data with technological properties No cement production without refractories

This book presents new information on concrete properties and production in the light of the widespread use of ready mixed concrete and new concreting materials. This book forms the Proceedings of the RILEM Colloquium held in Hanover, West Germany in October 1990. Papers from 18 countries in Europe, North America and the Far East are included.

Manual of integrated material and construction practices for concrete pavements.

Waste and Supplementary Cementitious Materials in Concrete: Characterisation, Properties and Applications provides a state-of-the-art review of the effective and efficient use of these materials in construction. Chapters focus on a specific type of material, addressing their characterization, strength, durability and structural applications. Sections include discussions of the properties of materials, including their physical, chemical and characterization, their strength and durability, modern engineering applications, case studies, the state of codes and standards of implementation, cost considerations, and the role of materials in green and sustainable construction. The book concludes with a discussion of research needs. Focuses on material properties and applications (as well as ‘sustainability’ aspects) of cementitious materials Assembles leading researchers from diverse areas of study Ideas for use as a ‘one stop’ reference for advanced postgraduate courses focusing on sustainable construction materials