Cover; Handbook of Alkali-activated Cements, Mortars and Concretes; Copyright; Contents; List of contributors; Woodhead Publishing Series in Civil and Structural Engineering; Foreword; 1 Introduction to Handbook of Alkali-activated Cements, Mortars and Concretes; 1.1 Brief overview on alkali-activated cement-based binders (AACB); 1.2 Potential contributions of AACB for sustainable development and eco-efficient construction; 1.3 Outline of the book; References; Part One Chemistry, mix design and manufacture of alkali-activated cement-based concrete binders.
2 An overview of the chemistry of alkali-activated cement-based binders2.1 Introduction: alkaline cements; 2.2 Alkaline activation of high-calcium systems: (Na, K)2O-CaOAl2O3-SiO2-H2O; 2.3 Alkaline activation of low-calcium systems: (N, K)2O-Al2O3-SiO2-H2O; 2.4 Alkaline activation of hybrid cements; 2.5 Future trends; References; 3 Crucial insights on the mix design of alkali-activated cement-based binders; 3.1 Introduction; 3.2 Cementitious materials; 3.3 Alkaline activators: choosing the best activator for each solid precursor; 3.4 Conclusions and future trends; References.
4 Reuse of urban and industrial waste glass as a novel activator for alkali-activated slag cement pastes: a case study4.1 Introduction; 4.2 Chemistry and structural characteristics of glasses; 4.3 Waste glass solubility trials in highly alkaline media; 4.4 Formation of sodium silicate solution from waste glasses dissolution: study by 29Si NMR; 4.5 Use of waste glasses as an activator in the preparation of alkali-activated slag cement pastes; 4.6 Conclusions; Acknowledgements; References; Part Two The properties of alkali-activated cement, mortar and concrete binders.
5 Setting, segregation and bleeding of alkali-activated cement, mortar and concrete binders5.1 Introduction; 5.2 Setting times of cementitious materials and alkali-activated binder systems; 5.3 Bleeding phenomena in concrete; 5.4 Segregation and cohesion in concrete; 5.5 Future trends; 5.6 Sources of further information and advice; References; 6 Rheology parameters of alkali-activated geopolymeric concrete binders; Introduction: main forming techniques; 6.2 Rheology of suspensions; 6.3 Rheometry; 6.4 Examples of rheological behaviors of geopolymers; 6.5 Future trends; References.
7 Mechanical strength and Young’s modulus of alkali-activated cement-based binders7.1 Introduction; 7.2 Types of prime materials -- solid precursors; 7.3 Compressive and flexural strength of alkali-activated binders; 7.4 Tensile strength of alkali-activated binders; 7.5 Young’s modulus of alkali-activated binders; 7.6 Fiber-reinforced alkali-activated binders; 7.7 Conclusions and future trends; 7.8 Sources of further information and advice; References; 8 Prediction of the compressive strength of alkali-activated geopolymeric concrete binders by neuro-fuzzy modeling: a case study.
This book provides an updated state-of-the-art review on new developments in alkali-activation. The main binder of concrete, Portland cement, represents almost 80% of the total CO2 emissions of concrete which are about 6 to 7% of the Planet’s total CO2 emissions. This is particularly serious in the current context of climate change and it could get even worse because the demand for Portland cement is expected to increase by almost 200% by 2050 from 2010 levels, reaching 6000 million tons/year. Alkali-activated binders represent an alternative to Portland cement having higher durability and a lower CO2 footprint..