This volume provides an overview of the mineral admixtures used in concrete, including silica fume, slag, rice-husk ash, fly ash and natural pozzolans. It also includes the mineral/chemical composition of the admixtures, their chemical reactions with cement and as a method of recycling.

Pozzolanic and cementitious admixtures are becoming increasingly important to enhance the environmental friendliness of portland-cement concrete and to improve workability, durability, and other properties of the material. This book provides a simple but comprehensive review of the composition and performance of important pozzolanic and cementitious admixtures, such as fly ash, granulated blast-furnace slag, natural pozzolans, silica fume, rice-husk ash and metakaolin.

"Pozzolanic and cementitious admixtures are becoming increasingly important to enhance the environmental friendliness of portland-cement concrete and to improve workability, durability, and other properties of the material. This book provides a simple but comprehensive review of the composition and performance of important pozzolanic and cementitious admixtures, such as fly ash, granulated blast-furnace slag, natural pozzolans, silica fume, rice-husk ash and metakaolin."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved

Manual of integrated material and construction practices for concrete pavements.

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