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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

CRISTIANE MACHADO PARISI JONOV CRISTIANE MACHADO PARISI JONOV CRISTIANE MACHADO PARISI JONOV CRISTIANE MACHADO PARISI JONOV OCTOBER 2009 OCTOBER 2009 OCTOBER 2009 OCTOBER 2009

Study about the behaviour and evaluation of the recovering costs of materials and components of buildings when exposed to the action of water from floods

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Introduction Introduction

• Flooding

Flooding issue issue today today

• Great

Great social social and and economic economic impacts impacts

• Buildings

Buildings recovering recovering impacts impacts

• Rivers

Rivers natural natural behaviour behaviour

• Urbanization

Urbanization

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Flooding Flooding on

• n Avenida Tereza Cristina

Avenida Tereza Cristina -

• Belo Horizonte

Belo Horizonte 31 31 December December 2008 2008

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Avenida Tereza Cristina Avenida Tereza Cristina flooded flooded 31 31 December December 2008 2008

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Vulnerability Vulnerability

• Building

Building condition condition and and preservation preservation state state

• Flood

Flood proofing proofing

• Forecast

Forecast system system and and flooding flooding alert alert

• Actions

Actions financing financing capacity capacity during during and and after after floods floods

• Recovery

Recovery of

• f damage

damage infra infra-

• structure

structure and and restablishment restablishment

• f
• f essential

essential public public services services

• Insurance

Insurance, , collecting collecting and and transference transference of

• f aid

aid to to damaged damaged dwelling dwelling

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Objective Objective Doctorate Doctorate research research first first outcomes

• utcomes presentation

presentation: :

• Behavioural

Behavioural study study of

• f materials

materials and and components components from from building building under under flooding flooding events events

• Viability

Viability study study for for buildings buildings protection protection

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Pathologies Pathologies caused caused by by humidity humidity Most Most humidity humidity pathologies pathologies are are not not linked linked to to only

• nly one
• ne

cause cause

• Work

Work humidity humidity

• Absortion

Absortion and and capillarity capillarity humidity humidity

• Infiltration

Infiltration humidity humidity

• Condensation

Condensation humidity humidity

• Accidental

Accidental humidity humidity

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Pathologies Pathologies’ ’ manifestation manifestation ways ways

• Spots

Spots

• Mould

Mould formation formation

• Cracks

Cracks and and fissures fissures

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Formation of Formation of efflorescence efflorescence and Formation of bubbles

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Pathologies Pathologies caused caused by by flood flood

• Mansory

Mansory – – water water absortion absortion and and drying drying

• Walls

Walls mortar mortar covering covering _ short time: _ short time: non non occurance

• ccurance of
• f serious

serious damages damages when when covering covering is in is in good good conditions conditions prior to prior to flood flood _ _ long long time: time: saturation and loss of adherence / restauration

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS

Painting – damages under short and long time fllooding _ water penetration on painting causing fading and shattering during drying _ new painting on all building

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

The The ways ways to to protect protect buildings buildings from from flood flood

Elevation and Wet Floodproofing

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS Relocation and Dry Floodproofing

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS Levees and flodwalls

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

Materials Materials & & Methods Methods To the development of the experimental part of this study, visits were done to affected areas by recent floods in the Barreiro / Belo Horizonte (December 2008 and January 2009) The registration done is shown next:

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS Vila dos Carroceiros – demolition and Appearance of cracks

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS Height of flood water and Interiors of a building affected by flooding

1,50m

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

It was also obtained information with the local authorities from Belo Horizonte, which consisted on the registration

• f the dwellings affected by water action and the social

economic characteristics of the families affected In order to classify the damage suffered by the families affected, these criteria were considered:

capacity to solve the family problems related to their income the intensity of the flood in the property the material damage

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

The classification of families concerning Financial Help was established according to the grading shown on the previous slide, following the model below:

Families that had small damages - Light Level: 2 to 4 Families that had medium damages - Medium Level: 5 to 6 Families that had big damages - Severe Level: 7 to 8

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

Conclusions Conclusions The studies carried until this moment show the seriousness of floods effects on materials and buildings components, as well as on populations which lives in areas subjected to floods On the follow-up of this study, it will be evaluated the costs of recovering the damages caused by such floods

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WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS

These costs will be compared with the results obtained in other regions of Minas Gerais affected by floods and with evaluation of costs made a priori throw technical doctrine and results obtained with Specialists Moreover, it will be done studies on the feasibility of the adoption of protective measures of areas subjected to floods