Page 7 - New Trends in Eco efficient and Recycled Concrete

vi Contents

2.3 Utilisations of biomass fly ash (BFA) and biomass bottom
ash (BBA) in concrete design 40
2.3.1 The design of concrete with biomass ash: general
properties for design 41
2.3.2 Influence of BA on concrete’s fresh-state properties:
density and slump 41
2.3.3 Physical-mechanical properties of mortars and concrete
with BA 42
2.3.4 Durability-related properties: water absorption
(by immersion and capillarity), carbonation resistance
and chloride penetration, sulphate and acid attack 44
2.3.5 Technological properties: thermal and acoustic insulation 45
2.4 Biomass ash-based geopolymer: clean production, properties
and applications 46
2.4.1 Geopolymer concrete. A green concrete 46
2.4.2 Limits and opportunities of biomass ash to produce
geopolymer concrete 47
2.4.3 Stabilisation of biomass ashes using geopolymerisation:
leaching characteristics 49
2.4.4 Properties of geopolymer concrete produced with
biomass ash 49
2.4.5 Adsorption characteristics of BA-based geopolymers
towards micropollutants 51
2.4.6 Use of BA-based geopolymers for thermal and acoustic
insulation 51
2.5 Concluding remarks 52
References 53
Further reading 58

3 Recycled plastic 59
Aliakbar Gholampour and Togay Ozbakkaloglu
3.1 Introduction 59
3.2 Material properties of recycled plastics used in concrete 60
3.3 Preparation and physical properties of recycled plastic concrete 60
3.4 Mechanical properties of recycled plastic concrete 66
3.4.1 Compressive properties 66
3.4.2 Flexural and tensile properties 69
3.5 Durability properties of recycled plastic concrete 73
3.5.1 Water absorption and air/water permeability 73
3.5.2 Degradation in alkaline environment 74
3.6 Time-dependent properties of recycled plastic concrete 75
3.6.1 Creep 75
3.6.2 Shrinkage 76
3.7 Other properties 77
3.7.1 Resistance to elevated temperature 77
3.7.2 Thermal conductivity 78