Recent technologies in sustainable materials engineering :‡bproceedings of the 3rd GeoMEast International Congress and Exhibition, Egypt 2019 on sustainable civil infrastructures - the official international congress of the Soil-Structure Interaction Grou

This book publishes a number of papers that were presented at GeoMEast, Sustainable Civil Infrastructures, an international congress held in Cairo, Egypt, in November 2019. A number of papers were presented about materials for infrastructure sustainability, and those are the papers published in this book. A unique group of chapters have been well-organized and handled by a group of international experts in order to be included in this book to discuss a timely topic with regard to the sustainable infrastructures. Contents 6 About the Editors 8 Development and Performance of Manual Technique Used in Production of Compressed Earth Blocks 10 Abstract 10 1 Introduction 10 2 Equipment Design and Manufacturing 12 2.1 Equipment Efficiency Assessment 13 3 Block Mix Design and Dimensions 16 3.1 CEB Mixture Choice 16 3.2 CEB Thickness Choice 18 4 Conclusions 20 Acknowledgments 20 References 20 Efficacy of Treatments on Coal Bottom Ash as a Cement Replacement 22 Abstract 22 1 Introduction 22 2 Material Preparation 23 3 Characterisation and Testing 24 4 Results and Discussions 26 5 Conclusions and Recommendations 29 Acknowledgements 29 References 30 Development of Porous Concrete with Recycled Aggregate 31 Abstract 31 1 Introduction 31 2 Experimental Program 32 2.1 Material 32 2.2 Mix Proportions 32 3 Results and Discussion 33 4 Conclusion 37 References 37 Soil Conservation on Slopes Subject to Water Erosion: The Application of the Concrete Lozenges Channels Technique for Slope Stability 39 Abstract 39 1 Introduction 39 2 Geological and Climatological Framework 40 2.1 Geology 41 2.2 Granulometric Characteristics 42 2.3 Precipitations 42 3 Methods 42 3.1 Methods 42 3.2 Application of the Technique 46 4 Results and Discussions 47 4.1 Results 47 5 Discussions 49 6 Conclusion 50 References 50 Effect of Salt Water on Unconfined Compressive Strength for Cement Kiln Dust 52 Abstract 52 1 Introduction 52 2 Materials 53 2.1 Cement Kiln Dust 53 2.2 Fresh Water 53 2.3 Salt Water 53 3 Experimental Program 53 4 Test Results 54 4.1 Cement Kiln Dust Characterization Tests 54 4.1.1 Chemical Composition 54 4.1.2 Particle Size Distribution 55 4.2 Unconfined Compressive Strength of CKD 55 5 Comparisons and Discussions 61 5.1 Effect of Different Mixing Ratios on UCS Results 61 5.2 Effect of Water Type on UCS Results 64 6 Conclusions 65 Acknowledgments 65 References 65 Use of Hot Spring Bacteria for Remediation of Cracks in Concrete 68 Abstract 68 1 Introduction 68 2 Experimental Program 69 2.1 Materials 69 2.2 Tests 69 3 Results and Discussion 70 4 Conclusions 73 References 73 A Comparative Study Between the Individual, Dual and Triple Addition of (S.F.), (T.G.P.) and (P.V.A.) for Improving Local Gypsum (Juss) Properties 74 Abstract 74 1 Introduction 75 2 Experimental Work 75 2.1 Materials 75 2.2 Gypsum Mixes 76 2.3 Mixing Procedure 77 2.4 Testing Program 78 3 Results and Discussions 79 3.1 Compressive Strength 79 3.2 Setting Time 82 3.3 Privilege of the Combined Effect of Adding: (S.F.), (P.V.A.) and (T.G.P.) 85 4 Conclusions 86 References 88 Evaluation of Tensile Strength and Durability of Microbial Cement Mortar 89 Abstract 89 1 Introduction 89 2 Experimental Work 90 2.1 Materials 90 2.2 Cement Mortar Mixes 92 2.3 Tensile Strength Test 93 3 Results and Discussion 94 3.1 Effect of Additive Micro-organisms on Tensile Strength of Cement Mortar with Variable Mix Cases 94 3.2 Durability 95 4 Conclusion 97 References 97 Bio Concrete 99 Abstract 99 1 Introduction 99 2 Research Objectives 100 3 Materials 100 4 Methodology 101 5 Results and Discussion 102 6 Conclusions 109 References 109 Author Index 110 Front Matter ....Pages i-viii Development and Performance of Manual Technique Used in Production of Compressed Earth Blocks (Mohamed Darwish, Safwan Khedr, Fady Halim, Rana Khalil)....Pages 1-12 Efficacy of Treatments on Coal Bottom Ash as a Cement Replacement (Sharon Gooi, Ahmad A. Mousa, Daniel Kong)....Pages 13-21 Development of Porous Concrete with Recycled Aggregate (Saroj Mandal, Bibekananda Mandal)....Pages 22-29 Soil Conservation on Slopes Subject to Water Erosion: The Application of the Concrete Lozenges Channels Technique for Slope Stability (Latifa El Bouanani, Khadija Baba)....Pages 30-42 Effect of Salt Water on Unconfined Compressive Strength for Cement Kiln Dust (Mahmoud E. Hassan, Ayman L. Fayed, Mohamed Y. Abd El-Latif)....Pages 43-58 Use of Hot Spring Bacteria for Remediation of Cracks in Concrete (Saroj Mandal, B. D. Chattopadhyay)....Pages 59-64 A Comparative Study Between the Individual, Dual and Triple Addition of (S.F.), (T.G.P.) and (P.V.A.) for Improving Local Gypsum (Juss) Properties (Ahmed S. D. AL-Ridha, Ali A. Abbood, Ali F. Atshan, Hussein H. Hussein, Layth Sahib Dheyab, Mohammed Sabah Mohialdeen et al.)....Pages 65-79 Evaluation of Tensile Strength and Durability of Microbial Cement Mortar (Ahmed S. D. AL-Ridha, Ali F. Atshan, Hussein H. Hussein, Ali A. Abbood, Layth Sahib Dheyab, Ayoob Murtadha Alshaikh Faqri)....Pages 80-89 Bio Concrete (Hager El-Mahdy, Ahmed Tahwia)....Pages 90-100 Back Matter ....Pages 101-101