ICCX Middle East 2019 - Conference Program



Significance of Gulf Building Codes and certification systems for official bodies and project developers

In 2017, the Gulf Cooperation Council Standardization Organization entered into an agreement with the American Concrete Institute to utilize ACI’s Building Code Requirements for Structural Concrete (ACI 318), Specifications for Structural Concrete (ACI 301), and Building Code Requirements for Masonry Structures (ACI 530), to develop a Gulf Building Code. The development of a Gulf Building Code will ensure that ACI’s one-hundred-plus years of consensus-based knowledge combined with the tremendous innovation occurring now in the Gulf region will result in construction projects that stand the test of time. This is expected to increase the confidence that concrete construction, testing, and inspection are performed correctly through industry-accepted training and certification programs.

Khaled W. Awad, is the Chairman and Founder of ACTS, a material and geotechnical consulting firm based in Beirut, Lebanon, and operating in Qatar, Saudi Arabia, and several other countries of the Middle East. An active member of ACI, he serves on numerous ACI Organisational and Technical Committees. He is the founder of Grenea, an investment firm advancing and providing technical assistance to eco-developments around the world. Prior to establishing Grenea, he was the founding Director of Property Development at the Masdar Initiative in Abu Dhabi, UAE. Awad worked in the real estate and construction industry in the Arabian Gulf for more than 30 years. He was the Founder and CEO of various construction and real estate companies, dealing with the supply chain and information technology side of the industry, as well as the development of large-scale projects. He received his BE in civil engineering from the American University, Beirut, Lebanon, and his MA in business administration from the Lebanese University, Beirut, Lebanon. Awad is also a member of the American Society of Civil Engineers (ASCE) and ASTM International, and a Fellow of the UK Institute of Concrete Technology. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Eng. Khaled Awad, ACI Past President

Additive manufacturing for an optimized concrete slab

The optimized concrete slab introduced in this presentation combines the structural strength of concrete with the fabrication-freedom of 3D printing. The pioneering construction method of the Smart Slab uses 3D-printed formwork for casting and spraying concrete in geometrically complex shapes. 3D printing overcomes the geometric limitations of traditional formwork fabrication methods. Furthermore, it enables the construction of integrative concrete elements with elaborate, free-form and highly detailed surfaces and smart construction details. 3D printing has the added benefit that geometric complexity and differentiation come at no additional production cost. Smart Slab has been installed as one of the core elements of the residential unit DFAB House in Switzerland. The 80 m2, 15 ton ceiling consists of eleven prestressed concrete segments and connects the lower floor with the two-storey timber structure above. Just 20 mm thick at its thinnest point, decoratively ribbed and less than 50% as heavy as a conventional concrete ceiling, the element gives an outlook on how digital fabrication can increase the design freedom and lead to more sustainable construction.

Architect Benjamin Dillenburger is Assistant Professor for Digital Building Technologies at the Institute of Technology In Architecture (ITA) at the Department of Architecture, ETH Zurich, Switzerland. He is focusing on „Numerical Material“ and he will present smart slabs that were produced using 3D-printed formwork.  

Prof. Benjamin Dillenburger

Smart materials for civil engineering applications: challenges and needs

Strength and durability requirements are equally important in design and long-term performance of concrete structures. Utilization of supplementary cementitious (Nano-particles) materials to improve concrete durability is aimed to avoid early cracking and deterioration and hence, improving performance and extending structures’ service life. Advances in construction materials have led to smart materials that have sensing characteristics to indicate strain development due to changes in loadings and environmental conditions. In addition, routine inspections and structural health monitoring strategies have been adopted to assess behavior of structures under load and different exposure conditions. Fiber optic sensors, vibrating wire gauges and different transducers are used in the monitoring of civil infrastructure projects. In this presentation, advances in construction materials and implementation of sensors technology in civil engineering applications will be discussed. In addition, challenges and future needs will be highlighted.

Dr. Yehia earned a PhD in Civil Engineering from the University of Nebraska, Lincoln, USA. He has taught in civil and construction engineering departments at the University of Nebraska, Omaha, and Western Michigan University, USA. Dr. Yehia is a registered Professional Engineer in the states of Nebraska and Michigan. He is the co-developer of the patented newly conductive concrete application for deicing operations and the patented precast post-tensioned segmental pole system. His research interests include behavior of reinforced and prestressed concrete, composite structures, special concrete, structural health monitoring, nondestructive testing, and infrastructure management systems. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Professor Sherif Yehia, American University of Sharjah, United Arab Emirates

Utilization of desert sand to produce high strength aggregates for structural concrete applications

The world’s urban population is expected to increase by about two billion until 2040’s. More than 75% of this will be in Asia, Middle East and Africa. Humanity must learn to produce more by consuming less especially for the key construction material, concrete. Usable sand for concrete is short in supply, and cement consumption has a negative environmental impact. The increasing needs of the society must be addressed urgently to prevent unrecoverable environmental damage, while coping with elevated costs. MultiCON has recently developed a technology that converts abundant and useless desert sand into construction sand and aggregates. Combined with the dual mixing scheme of MultiCON that can provide up to 40% of cement savings during concrete production, a revolutionary technology that is economical and environmentally friendly is now available. The technical details are presented, followed by a discussion of possible applications of this technology for efficient, sustainable and resilient construction.

Professor Baris Binici obtained his undergraduate degree in Civil Engineering at Middle East Technical University, Ankara, Turkey, and his MSc and PhD from the University of Texas at Austin, USA. Since 2006 he has been Associate Professor of Civil Engineering at Middle East Technical University. Barıs Binici <该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。>  

Baris Binici, Erdem Canbay, Leopold Halser, Helmut Rosenlöcher, Middle East Technical University, MultiCON Group, Ankara, Turkey

New developments in admixtures for precast and ready-mix concrete

Chemical admixtures are indispensable to control the properties of fresh and hardened concrete such as e.g. rheology, setting behavior, strength development, shrinkage, durability etc. Recent developments in admixture technology are presented and an outlook into the future of this field is given. The last decade has seen an unprecedented development of polycarboxylate (PCE) superplasticizers. Methallyl-, isoprenol-ether based and phosphate-modified PCEs have been added to the already very broad family of this admixture. Furthermore, new concepts have been introduced to achieve longer slump retention in ready-mix concrete, to reduce the stickiness of precast concrete made at low w/c ratio and to enhance the clay tolerance of PCE admixtures. Another significant innovation is presented by C-S-H-PCE nanocomposites. These seeding materials not only produce exceptionally high early strength in Portland cement, they can also stimulate the pozzolanic reaction of blended cements (CEM II/III) and thus facilitate a more widespread use of “green” cements. Finally, novel superabsorbent polymers have been presented which can provide effective inner curing and reduce shrinkage. Among these products are not only polyacrylamides, but also natural biopolymers such as carrageenan and alginates. Future developments will focus on reducing the undesired brittleness of concrete through biomimetic approaches.

Professor Dipl. – Chem. Johann Plank is full professor for Construction Chemistry and head of the Institute for Inorganic Chemistry at Technische Universität München. He studied chemistry in Regensburg, Germany and in 1980 earned a Ph.D. degree there. He then joined SKW Trostberg as a research group leader, construction polymers and founded SKW’s oilfield chemicals business before he became General Manager of SKW Construction Polymers GmbH in 1997. In 2001, he joined Technische Universität München, Germany, as a full professor for Construction Chemistry. His current research interests include cement and admixture chemistry for concrete, gypsum, mortar and oil well cementing. Prof. Plank has published about 400 scientific papers, holds 40 patents in the field of construction admixtures and has received many awards and honorary professorships from universities in Japan, China, Singapore and Thailand. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Prof Johann Plank, Technical University Munich, Germany

New Knowledge on the High-temperature Behaviour of Mineral Building Materials

During their service life, concrete structures are exposed to several loading conditions. Besides sustained and frequently recurring actions, also exceptional effects may occur such as high temperatures or even fire. In the case of high temperatures or fire, the behaviour of mineral building materials is principally characterized by a coupling of temporal and temperature-dependent changes of the physio-chemical and mechanical material properties, which finally can lead to a significant loss in load bearing capacity up to the failure of the material and/or structure. Based on recent research results on the high temperature behaviour of binders, the temperature-dependent transition processes of aggregates and the mode of action of polymer fibres to reduce spalling, the contribution summarizes new knowledge how the high temperature and fire resistance of mineral building materials increases by the technological measures and optimizations

Dr. Frank Dehn is university professor at the Karlsruhe Institute of Technology (KIT) which is the largest research facility in Germany and one of the leading Technical Universities in Europe. Dr. Dehn is head of the Institute of Building Materials and Concrete Structures and director of the Materials Testing and Research Laboratory of KIT. He is member and head of several national and international pre-normative and standardization committees (e.g. CEN/TC 104) as well as expert boards related to concrete technology, numerical modelling of concrete deterioration and service life design and works in the field of retrofitting and rehabilitation of concrete structures. In particular, he is presidium member of The International Federation for Structural Concrete (fib) and also chairperson of fib Commission 4 Concrete and Concrete Technology. Additionally, he holds the co-chairmanship of fib Action Group 4 Durability and Service Life Design, which is responsible for the related chapters in the new fib Model Code for Concrete Structures 2020. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Prof. Frank Dehn, Karlsruhe Institute of Technology, Germany

How to deal with challenges resulting from pozzolan requirements for precast concrete in the UAE

To achieve green and durable concrete some jurisdictions require the partial replacement of ordinary Portland cement (OPC) with pozzolans in precast elements. Most pozzolans react slower than Portland cement, resulting in a lower early-age concrete strength. For precast elements, which are demoulded, transported to site and installed within days of being cast, this increases the risk of cracking prior to and during installation. If such cracks occur, a suitable repair strategy must be found. This paper discusses current best practice while also touching on the question of when during the construction phase such cracks should be repaired. Further to that, concrete technology-based strategies to reduce the risk of cracking and the subsequent need for repair are presented.

Frank Altmann is publicly certified and sworn in as Expert Analyst for Damages to Buildings by the Chamber of Commerce and Industry Heilbronn-Franken, Germany, and has worked as an Expert Witness on a wide range of disputes and litigation in Germany. He has more than 15 years’ experience in the construction industry, having begun his career as a structural engineer in Australia. Frank has a particular interest in concrete durability and service life design and holds a Doctorate in Engineering for his research in this field. He joined BG&E, to lead Middle East Operations for the Materials Technology Division in 2016. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。 ((Fussing bio ist vorhanden)) 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Frank Altmann, Jens Fussing, BG&E Consulting Engineers, Dubai, UAE

Certification and its Role in Building the World’s Concrete Structures

It is imperative that personnel involved in the construction, testing, and inspection of concrete have the most up-to-date knowledge, skills, and experience to perform their work correctly. With over 123,000 individuals currently certified around the world, the American Concrete Institute’s 27 unique certification programs ensure that individuals can demonstrate their knowledge of working with concrete and display specific skills for advanced placing and testing techniques. With programs tailored to the needs of both field and laboratory personnel covering topics appropriate for ready-mixed concrete, precast concrete, tilt-up concrete, and more, considering ACI certification for your team is vital to ensuring the safety and quality of concrete projects.

Khaled W. Awad, is the Chairman and Founder of ACTS, a material and geotechnical consulting firm based in Beirut, Lebanon, and operating in Qatar, Saudi Arabia, and several other countries of the Middle East. An active member of ACI, he serves on numerous ACI Organisational and Technical Committees. He is the founder of Grenea, an investment firm advancing and providing technical assistance to eco-developments around the world. Prior to establishing Grenea, he was the founding Director of Property Development at the Masdar Initiative in Abu Dhabi, UAE. Awad worked in the real estate and construction industry in the Arabian Gulf for more than 30 years. He was the Founder and CEO of various construction and real estate companies, dealing with the supply chain and information technology side of the industry, as well as the development of large-scale projects. He received his BE in civil engineering from the American University, Beirut, Lebanon, and his MA in business administration from the Lebanese University, Beirut, Lebanon. Awad is also a member of the American Society of Civil Engineers (ASCE) and ASTM International, and a Fellow of the UK Institute of Concrete Technology. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Eng. Khaled Awad, ACI Past President

Durability of surface enhanced concrete products in GCC countries

Concrete paving can be designed and produced to meet a vast range of performance requirements concerning long-lasting mechanical and aesthetic properties. The durability of concrete paving depends to a large extent on its resistance against abrasion, corner spalling and salt scaling. From an architectural point of view, a durable surface finish with consistently high quality needs to be provided, which requires minimizing colour changes and preventing efflorescence on the surface of concrete pavers. In light of these requirements, the durability of concrete products can be enhanced through an optimization of constituent materials, concrete mix design, manufacturing technology and surface treatment. Suitable approaches and technologies are discussed, with particular emphasis on the environmental exposure conditions experienced in the Arabian Gulf region.

Hans Beushausen is Professor in the Department of Civil Engineering at the University of Cape Town. He is a member of the Concrete Materials & Structural Integrity Research Unit, which focuses on infrastructure performance and renewal research. His research fields include concrete durability (material aspects, durability testing, durability design and specification), performance assessment of concrete structures, repair systems for concrete structures, and bonded concrete overlays. His interests further include precast concrete technology and he is editor of the magazine Concrete Plant International. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Prof. Hans Beushausen, University of Cape Town, South Africa

Innovative acoustic vibration for the precast concrete industry

Vibrators are classically used to generate vibration on trestles, tables, or even directly on the moulds. Vibrations are transmitted to the mould and to the concrete through solid shocks. Shocks decrease the duration of the vibration cycle but generate noise, increase the wearing of moulds and may result in uncontrolled vibrations. CERIB designed an innovative system to vibrate concrete with controlled acoustic waves. Concrete compaction is achieved under (or around) the mould with various signals and modular intensities. Besides flexibility and noise reduction, technical advantages are achieved in relation to mould weight and equipment costs. The system allows easy mastering of frequencies and amplitudes to eliminate any excess voids in the concrete. It can be applied for wet and dry concrete casting, on a laboratory scale or for full industrial application.

Kais Mehiri, graduated from the engineering school of Metz in France in 2004, and obtained the degree of doctor in mechanics of materials, structure and processes in 2007. He was appointed as Professor in a French Engineering school from 2007 to 2009. He joined the CERIB (Research center for the precast concrete industry) as a process engineer in 2009. Since 2015 he has been in charge of development and innovation at the CERIB’s Strategic development department. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Kais Mehiri and Alberto Arena, CERIB, Epernon, France

Combined use of calcium nitrate and SCMs for concrete production; environmental and economic advantages

Cement production is among the largest carbon dioxide emitting sources in the industry. Therefore, the use of Supplementary Cementitious Materials (SCMs) has become more and more common due to the associated environmental advantages. However, compared to ordinary Portland cements, the setting time of such blended cements is typically considerably increased. Calcium nitrate (CN) can help to compensate time loss by accelerating the hydration process. The production of concrete elements and bricks needs to be sustainable and cost efficient. A major improvement in this regard comes from blended cement incorporating SCMs. By adding CN, the energy demand fort he curing process can be reduced without sacrificing the production rate. This presentation shows that the combined use of CN and blended cements will allow to use less energy in the curing process and significantly reduce the amount of CO2, without a loss in technical performance.

Mehrdad Torabzadegan is Senior Application Engineer at Industrial segment, Yara International ASA and based in Yara Technology Centre in Porsgrunn, Norway. He is Senior construction engineer with experience in sustainable solutions in construction technology, energy and environmental technology. His main focus is on technical development, research projects and global market support for Yara’s industrial grade products for wide range of applications including concrete admixtures, oil and gas drilling technology, wastewater treatment and biogas production enhancement. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Mehrdad Torabzadegan, Yara International ASA, Norway

Modular and fully automated production process for free-form concrete formwork in building construction based on technical waxes

This aim of this ground-breaking research is to combine economic efficiency with ecological sustainability of formwork for free-form concrete structures. The development of suitable processes and plant technology makes it possible to produce reusable formwork modules based on technical wax for free-formed concrete formwork in a fully automated production process. By joining individual modules into a completed formwork system, concrete components with an almost unlimited shape and size spectrum can be produced.

Franz Wirth obtained an MSc in Civil Engineering from the RheinMain University in Germany. Subsequently he worked as project engineer in the consultancy osd – office for structural design, Frankfurt. Since 2014, he has been a Technical Assistant at the Institute for Structural Engineering at the Technical University of Braunschweig, Germany. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Franz Wirth, Technical University Braunschweig, Germany

Accelerated bridge construction using high performance concrete

The National Bridge Inventory (NBI) of the United States includes more than 600,000 highway bridges with spans exceeding 20 ft. Approximately one-fourth of the nation’s inventory are structurally deficient or functionally obsolete, thus, repair, rehabilitation, or total replacement is required to maintain the highway bridges, reduce the probability of catastrophic failures, and/or increase the safety of commuting traffic. The total cost of required bridge maintenance activities requires a total annual budget of $15 billion compared to a $1 billion available budget at the Federal Highway Administration. The budget deficiency requires innovative techniques in bridge rehabilitation and replacement that provides the construction industry with sufficient savings in the direct and indirect cost of bridge maintenance activities. Accelerated Bridge Construction (ABC) techniques are introduced as a new-approach that uses innovative planning, design, and construction techniques in a cost-effective manner to reduce onsite activities, utilize site-available topography and materials to reduce construction time and consumed materials, and minimize the use of heavy equipment. The use of Prefabricated Bridge Elements and Systems (PBES) is a successful and innovative ABC technique that utilize elements fabricated off-site and transferred to the construction site at the erection time. PBES is currently adopted by the FHWA and State DoTs as a successful ABC technique for its time and cost savings. The off-site fabrication of bridge elements and systems allows for an improved quality control procedure, which increases the life span of the constructed bridge.

Dr. Amin Akhnoukh is currently an Associate Professor at East Carolina University, Greenville, North Carolina. Dr. Akhnoukh earned his B.S. in Civil Engineering from Cairo University, Cairo, Egypt (1997), and M.S. of Civil Engineering from Kansas State University, Manhattan, KS (2005), and Ph.D. in Construction Engineering from the University of Nebraska, Lincoln, Nebraska (2008). Dr. Akhnoukh has 8 years of structural design experience in multinational companies. Dr. Akhnoukh area of research includes high strength concrete, prestressed concrete, and structure reliability. Dr. Akhnoukh is a registered professional engineer in the State of Arkansas. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Prof. Amin Akhnoukh, University of North Carolina, USA

Development of a new steel fibre for application in concrete segments

The usage of steel fibre reinforcement could reduce the required amount or completely eliminate conventional steel reinforcement in concrete segments. As a consequence, costs of reinforcement works and whole project costs could be minimized. This requires a high post-cracking tensile strength of the steel fibre reinforced concrete and a homogenous fibre distribution in the component. A new type of steel fibre (from the company Feel Fiber Gmbh) meets these demands. These fibres have a profile and contain end anchors. The number, position and size of these anchors can be flexibly adapted in order to optimize the load bearing behavior of the element. Due to the straight fibre shape, the influence on fresh concrete properties is smaller compared to conventional hooked fibres. Consequently, a more homogenous fibre distribution is expected and larger amounts of fibres can be used.

Michael Huss studied civil engineering sciences and structural engineering at Graz University of Technology. He wrote his master thesis at the institute of structural concrete, supervised by Prof. Nguyen Viet Tue. After his graduation, he started his doctoral thesis there. The main focus of his research work is on concrete technology, especially in fibre reinforced concrete (FRC) and ultra high performance fibre reinforced concrete (UHPFRC). 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Michael Huß, Technical University Graz, Austria

Spun Concrete Pole Innovations - Unique Applications Including Smart Poles

The first spun concrete pole reinforced with mild steel was produced in 1907 by the firm Otto and Schlosser in Meiszen, Germany. Today the spun concrete technology has advanced by leaps and bounds. Recent advances in the materials, manufacture, design, and applications have taken place rendering the spun prestressed concrete pole a most efficient, durable, versatile, and a universally accepted support structure – a first choice for numerous applications in the concrete industry. This paper outlines the innovations in spun concrete pole technology over recent years, focusing on some of the unique and multifarious applications of the product. A brief overview of the smart pole application using street lighting poles to offer an infrastructure network that can play a key role in smart cities, is also presented with thoughts on the future use and potential market for this application. Overall, future developments and opportunities for the product are also discussed.

Dr. Fouad H. Fouad is Professor and Chairman of the Civil, Construction, and Environmental Engineering Department at the University of Alabama at Birmingham (UAB), and the Director of the UAB established Sustainable Smart Cities Research Center. Dr. Fouad is a fellow of the American Concrete Institute (ACI) and the American Society of Civil Engineers (ASCE). His research interest is in the area of sustainable infrastructure design, maintenance, and rehabilitation with a focus on reinforced concrete and steel structures, as well as sustainable construction materials. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Fouad H. Fouad

Paula Alvarez Pino is the Associate Director of the Sustainable Smart Cities Research Center at University of Alabama Birmingham (UAB). She received a bachelor of science in Civil, Construction and Environmental Engineering from UAB and is a credentialed practitioner on Envision Sustainable Infrastructure rating system (ENV SP). She is finalizing her masters in the field of Civil Engineering and has a research interest in utility distribution poles and the development of an innovative pole for smart cities – smart poles. 该 Email 地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。  

Paula Alvarez Pino