Description
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.- Reviews the chemistry, mix design, manufacture and properties of alkali-activated cement-based concrete binders- Considers performance in adverse environmental conditions.- Offers equal emphasis on the science behind the technology and its use in civil engineering.
Table of Contents
1: Introduction to Handbook of Alkali-activated Cements, Mortars and ConcretesAbstract1.1 Brief overview on alkali-activated cement-based binders (AACB)1.2 Potential contributions of AACB for sustainable development and eco-efficient construction1.3 Outline of the bookPart One: Chemistry, mix design and manufacture of alkali-activated, cement-based concrete binders2: An overview of the chemistry of alkali-activated cement-based bindersAbstract2.1 Introduction: alkaline cements2.2 Alkaline activation of high-calcium systems: (Na,K)2O-CaO-Al2O3-SiO2-H2O2.3 Alkaline activation of low-calcium systems: (N,K)2O-Al2O3-SiO2-H2O2.4 Alkaline activation of hybrid cements2.5 Future trends3: Crucial insights on the mix design of alkali-activated cement-based bindersAbstract3.1 Introduction3.2 Cementitious materials3.3 Alkaline activators: choosing the best activator for each solid precursor3.4 Conclusions and future trends4: Reuse of urban and industrial waste glass as a novel activator for alkali-activated slag cement pastes: a case studyAbstract4.1 Introduction4.2 Chemistry and structural characteristics of glasses4.3 Waste glass solubility trials in highly alkaline media4.4 Formation of sodium silicate solution from waste glasses dissolution: study by 29Si NMR4.5 Use of waste glasses as an activator in the preparation of alkali-activated slag cement pastes4.6 ConclusionsAcknowledgementsPart Two: The properties of alkali-activated cement, mortar and concrete binders5: Setting, segregation and bleeding of alkali-activated cement, mortar and concrete bindersAbstract5.1 Introduction5.2 Setting times of cementitious materials and alkali-activated binder systems5.3 Bleeding phenomena in concrete5.4 Segregation and cohesion in concrete5.5 Future trends5.6 Sources of further information and advice6: Rheology parameters of alkali-activated geopolymeric concrete bindersAbstract6.1 Introduction: main forming techniques6.2 Rheology of suspensions6.3 Rheometry6.4 Examples of rheological behaviors of geopolymers6.5 Future trends7: Mechanical strength and Young's modulus of alkali-activated cement-based bindersAbstract7.1 Introduction7.2 Types of prime materials – solid precursors7.3 Compressive and flexural strength of alkali-activated binders7.4 Tensile strength of alkali-activated binders7.5 Young's modulus of alkali-activated binders7.6 Fiber-reinforced alkali-activated binders7.7 Conclusions and future trends7.8 Sources of further information and advice8: Prediction of the compressive strength of alkali-activated geopolymeric concrete binders by neuro-fuzzy modeling: a case studysAbstract8.1 Introduction8.2 Data collection to predict the compressive strength of geopolymer binders by neuro-fuzzy approach8.3 Fuzzy logic: basic concepts and rules8.4 Results and discussion of the use of neuro-fuzzy modeling to predict the compressive strength of geopolymer binders8.5 Conclusions9: Analysing the relation between pore structure and permeability of alkali-activated concrete bindersAbstract9.1 Introduction9.2 Alkali-activated metakaolin (AAM) binders9.3 Alkali-activated fly ash (AAFA) binders9.4 Alkali-activated slag (AAS) binders9.5 Conclusions and future trends10: Assessing the shrinkage and creep of alkali-activated concrete bindersAbstract10.1 Introduction10.2 Shrinkage and creep in concrete10.3 Shrinkage in alkali-activated concrete10.4 Creep in alkali-activated concrete10.5 Factors affecting shrinkage and creep10.6 Laboratory work and standard tests10.7 Methods of predicting shrinkage and creep10.8 Future trendsPart Three: Durability of alkali-activated cement-based concrete binders11: The frost resistance of alkali-activated cement-based bindersAbstract11.1 Introduction11.2 Frost in Portland cement concrete11.3 Frost in alkali-activated binders – general trends and remarks11.4 Detailed review of frost resistance of alkali-activated slag (AAS) systems11.
