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

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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


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

THE END


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