Environmental Control Materials

Code:

EC5291

Acronym:

MCA

Instance: 2006/2007 - 1S

Active?	Yes
Responsible unit:	Construction Materials Division
Course/CS Responsible:	Civil Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
LEC	4	Plano de estudos de transição para 2006/07	5	6	6	-
MIEC	5	Plano de estudos de transição para 2006/07	5	-	6	-

Teaching language

Portuguese

Objectives

This subjects aims to provide the knowledge about the constitution, behavior, construction procedures, quality control and application control of materials applied in stanching systems of poluent containing structures and materials that result from the sub-product valorization

Program

1- Constituent Materials of Polluent Stanching Systems

INTRODUCTION
Stanching systems constitution bearing the poluent riskness.
The geotextiles, the geomembranes e the geocomposites bentonics as those systems constituent materials.

GEOTEXTILES
Addictive and Constituent Polymers. Structures. Fabrication methods.
Stanching systems relevant functions: separation; protection.
Physical properties: mass per area unit; thickness; oppening specific dimension.
Mechanics functions: traction-deformation; statics and dinamics punctioning.
Durability: to the damage during the instalation; to the ultra-violet radiations; to the acid and alkaline solutions; to the thermal-oxidation; to the hydrolyses and micro-organismes.
Identification test and quality of the physical, mechanics and durability properties control.
Quantification test of the protection efficacy.
Application methods.

GEOMEMBRANES
Constituent and additive Polymers. Types of geomembranes. Methods of production. Selection of constituent polymer face to the characteristics of the present polluent. Physical properties: mass for unit of area; thickness; density; index of fusing flow; vapor and water vapor transmission of solvent. Mechanical properties: traction-deformation; static and dynamic punctioning; tearing; splitting; behavior of the joints
Durability: to the damnification during the installation; to the ultraviolet radiations; to the acid and alkaline solutions; to the term-oxidation; to hydrolysis and the microorganisms.
Assays of identification and quality control of the physical, mechanical properties and of durability.
Methodologies of rank in workmanship and linking of the joints.
Assays of application control: non destructive and destructive.

GEOCOMPOSITES BENTONÍTICOS
Constituent materials of the bentoníticos geocomposites
Geotextiles or Main geomembranas
Bentonite
Properties of the bentonites
Factors that can modify the properties of the bentonites
Types of bentoniticos geocomposites. Processes of production
Physical Properties: type of clay; thickness; mass for unit of area; text in water. Hydraulical properties: moisturizing; expansion capacity; water absorption; hydraulical conductivity; permeability - in phase of saturation, function of the confinement tension, after deformation; permeability in the overlappings; permeability in function of the permeabal liquid; permeability to not miscible fluids in water; permeability to the gases; diffusion.
Mechanical properties: traction-deformation; cut (internal); peelling; static punctuoning and dynamic
Durability: to the damnification during the installation; to the cycles ice-thawing and of drying-weattening; face to the capacity of absortion and the time of passage of water or of a solution.
Assays of identification and quality control of the physical, hydraulical, mechanical properties and of durability.
Equivalence technique between the bentoníticos geocomposites and the compact clay. Methodologies of rank in workmanship.

INTERFACES BETWEEN THE CONSTITUENT MATERIALS Of THE STANCHING SYSTEMS
Importance of the resistance of the interfaces in the stability of the systems.
Relative movements: pulling; direct cut.
Mechanisms of mobilization of the resistance.
Factors that afect the resistance of the interfaces: structure of the material; confinement tension; inclination of the cut plan.
Assays of characterization of the resistance of the interfaces: direct cut; cut in inclined plan; pulling.

METHODOLOGIES OF SYSTEMS OF STANCHING SIZING
2 - MaterialS of Construction Resultant of the By-product Valuation
INTRODUCTION
The importance of the by-product valuation in the control of the production of residues, in the reduction of environmental impact and the exploration of sources non renewal. The slags of incineration of urban solid residues and the residues of construction and demolition

Teaching methods and learning activities

A parallelism will be looked between the subjects of the theoretical lessons and the applications made in the theorectical-practical ones, in the way that the relation of the theory and the practical is more easily assimilated by the pupils. On the other hand, it will be used projection of slides and of films of real cases of the subjects, enlightening and demonstrative materials of the application of the substances turned in it disciplines in the exercise of the professional activity of civil engineers.

Evaluation Type

Evaluation with final exam

Eligibility for exams

The evaluation will be made, basically, through tests (examinations) with theoretical part and practical part. It will not be left, however, to have in account in the evaluation the assiduity, interest and participation spirit demonstrated by the pupils in the continuation of the classes.

Observations

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Estimated working time out of classes: 4 hours