challenges in meeting functional and sustainability needs of infrastructure in southern africa
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Challenges in meeting functional and sustainability needs of Infrastructure in Southern Africa. Dr. Michael N Mulenga, FEIZ, MASCE, REng UNZA-School of Engineering

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challenges in meeting functional and sustainability needs of infrastructure in southern africa

Challenges in meeting functional and sustainability needs of Infrastructure in Southern Africa

Dr. Michael N Mulenga, FEIZ, MASCE, REng

UNZA-School of Engineering

FUTURISTIC BUILT ENVIRONMENT EDUCATION, BEST PRACTICES, AND STANDARD FOR SOUTHERN AFRICA, NCC, Lusaka, Zambia , 24-25th February 2011

overview of presentation
Overview of Presentation
  • Introduction
  • Conception, Design and Specifications
  • Materials of Construction
  • Construction, refurbishment and maintenance of constructed facilities
  • Monitoring, Evaluation and Feedback
  • Conclusions and Recommendations
introduction
Introduction

Zambia-Country Profile

  • Landlocked country
  • Land Area 752, 612 sq km
  • Population 12.9 million
  • Total Road Network 67,671 km
  • Core Road Network 40,000 km
introduction cont d
Introduction (Cont’d)
  • Southern Africa is endowed with large amounts of construction raw materials
  • Manufactured materials such as structural and reinforcing steel, cement and masonry units are produced locally
  • Zambia imports different various manufactured materials from the region and other countries
  • Limited number of harmonized standards and codes of practice exist
conception design and specifications
Conception, design and specifications
  • Successful construction projects require a thorough thought process to ensure performance to expectations
  • Concerted efforts are required between the various players (planners to designers and contractors)
  • Poorly planned and executed projects can lead to disaster
  •  The design process should be subjected to a quality assurance plan to ensure responsibility, accountability and traceability.
conception design and specifications cont d
Conception, design and specifications (Cont’d)
  •  The specifications should be ‘green’ and should encourage innovation.
  • New materials of construction and related practices can be promoted through intelligent specifications and advocacy.
  •  Issues of the Climate Change, for example, should be incorporated in our standards, codes of practice and specifications.
materials of construction
Materials of construction
  • The behavior of constructed facilities depends to a large extent on the materials that are incorporated in the construction.
  • Basic materials such as the aggregates have to be blended and used in prescribed quantities
  • Manufactured materials have to be used ingeniously to satisfy strength, functional and serviceability requirements.
  • Use of novel materials of construction, such as composites, re-use and recycling of materials are all feasible options.
materials cont d
Materials (Cont’ d)
  • For cost effectiveness and sustainability, emphasis should be placed on effective use the locally available construction materials
  • Standardization is key to promoting regional and international, bilateral and multi-lateral agreements that promote socio-economic developmental
  • SADC and COMESA protocols emphasize ‘trade beyond borders’
construction refurbishment and maintenance of constructed facilities
Construction, refurbishment and maintenance of constructed facilities
  • To meet present and future needs, as well as heritage requirements, novelty in design, construction and maintenance is required
  • Education and Training and Research and Development (R & D) are major inputs.
  • Strong partnerships are required amongst stakeholders, to achieve futuristic built-environment.
funding for education training and research development
Funding for Education, Training and Research & Development
  • The efforts require sustainable funding and deliberate policies targeted at sustainable built environment.
  • One way is to ensure that a percentage of each contract sum is channeled to education, training, research and development.
monitoring evaluation and feedback
Monitoring, Evaluation and Feedback
  • There is need for monitoring and evaluation of the processes and the resulting constructed infrastructure.
  • Mechanisms for feedback and updating of the codes have to be developed
  • Information flow to end users should be efficient and effective, as demanded by the construction industry
  • Corrective action and improvements can then be instituted in a timely manner.
conclusions and recommendations
Conclusions and Recommendations
  • Several materials of construction, from different sources are available on the Southern African market.
  • There is need for harmonization of standards in Southern African
  •  Standardization is a means by which we can boost regional and international developmental initiatives
  • ‘Green’ practices and innovation must be encouraged through intelligent standards, codes of practice and specifications, as well as advocacy.
conclusions and recommendations cont d
Conclusions and Recommendations (Cont’d)
  • Topical issues such as Climate Change need be incorporated in codes and specifications development
  • Robust Specifications should not be looked upon as ‘policing’ mechanisms, but rather ‘opportunities’ for innovation and sustainability.
  • Funding and strong partnerships between players is absolutely essential
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