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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 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 CRISTIANE MACHADO PARISI JONOV CRISTIANE MACHADO PARISI JONOV CRISTIANE MACHADO PARISI JONOV CRISTIANE MACHADO PARISI JONOV OCTOBER 2009 OCTOBER 2009 OCTOBER 2009 OCTOBER 2009 1

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Introduction Introduction Flooding issue issue today today • Flooding • Great social social and and economic economic impacts impacts • Great • Buildings recovering recovering impacts impacts • Buildings • Rivers natural natural behaviour behaviour • Rivers • Urbanization • Urbanization • 2

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Flooding on Flooding on Avenida Tereza Cristina Avenida Tereza Cristina - - Belo Horizonte Belo Horizonte 3 31 December 31 December 2008 2008

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Avenida Tereza Cristina Avenida Tereza Cristina flooded flooded 31 December December 2008 2008 31 4

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Vulnerability Vulnerability Building condition condition and and preservation preservation state state • Building • Flood proofing proofing • Flood • Forecast system system and and flooding flooding alert alert • Forecast • Actions financing financing capacity capacity during during and and after after floods floods • Actions • Recovery of of damage damage infra infra- -structure structure and and restablishment restablishment • Recovery • of essential essential public public services services of Insurance, , collecting collecting and and transference transference of of aid aid to to damaged damaged • Insurance • dwelling dwelling 5

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Objective Objective Doctorate research research first first outcomes outcomes presentation presentation: : Doctorate Behavioural study study of of materials materials and and components components from from • Behavioural • building under under flooding flooding events events building Viability study study for for buildings buildings protection protection • Viability • 6

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Pathologies caused caused by by humidity humidity Pathologies Most humidity humidity pathologies pathologies are are not not linked linked to to only only one one Most 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 � 7

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Pathologies’ ’ manifestation manifestation ways ways Pathologies � Spots Spots � � Mould Mould formation formation � � Cracks Cracks and and fissures fissures � 8

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Formation of efflorescence efflorescence and Formation of bubbles Formation of 9

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTA YOUNG ENVIRONMENTAL SCIENTISTS L SCIENTISTS Pathologies caused caused by by flood flood Pathologies � Mansory Mansory – – water water absortion absortion and and drying drying � � Walls Walls mortar mortar covering covering � _ short time: non non occurance occurance of of serious serious damages damages when when _ short time: covering is in is in good good conditions conditions prior to prior to flood flood covering _ long long time: time: saturation and loss of adherence / _ restauration 10

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 11

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS The ways ways to to protect protect buildings buildings from from flood flood The Elevation and Wet Floodproofing 12

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS Relocation and Dry Floodproofing 13

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS Levees and flodwalls 14

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS Materials & & Methods Methods Materials 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: 15

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS Vila dos Carroceiros – demolition and Appearance of cracks 16

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS 1,50m Height of flood water and Interiors of a building affected by flooding 17

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 of 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 18

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS 19

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 20

WORLD WIDE WORKSHOP for WORLD WIDE WORKSHOP for YOUNG ENVIRONMENTAL SCIENTISTS YOUNG ENVIRONMENTAL SCIENTISTS 21

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 22

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 23