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135aaa

Introduction

By the year 2001 the project DIGBUILD was started, performing important gas companies and manufacturers of pipes and fittings, whose aim was to look for an improvement in the costs of the and the installation of the metal pipes used up to then in the interior supply of gas in the buildings, so it was performed pilot tests and instillations with cross-linked polyethylene pipes (PEX) and multilayer pipes (PEX-AL-PEX).Leer más

134aIntroduction

The Normative UNE 53008 is a normative of system. It is applicable to Multilayer pipes, fittings, its joins and also for joins with components made up plastic and non-plastic materials destined to an installations of gas receiver, so making sure that all the components are perfectly adapted among them, taking into account this point in the installation.Leer más

130aa

SPAIN

Spain is one of the largest countries in Western Europe. 85% of the crop area is dependent on rainfall as source of water. More than half of the irrigated area was planted with corn, fruits, and vegetables in 2010. Grapes, cotton, sugar beets, potatoes, legumes, olive trees, strawberries, tomatoes, and fodder grasses are other few crops benefited by irrigation in terms of yield and quality. 20.36% of Spain’s crop land was irrigated in 2010.Leer más

127a

Characteristics of the fibre cement pipes

The fibre cement is, as it indicates its name, a material made up of fibres of asbestos mixed with cement. The asbestos is a group of fibrous silicates with some important physic-chemical and mechanical characteristics, that’s why it has been widely used in construction materials and in canalizations.Leer más

126a

Introduction

For safety in the handling of fibre cement pipes, I have considered that it is very interesting to include in Blogplastics, this subject which was already treated by Roberto Laborda Grima, 130729 in i.environment (THE PORTAL OF THE ENVIRONMENT). In the year 2003 the extraction of asbestos was forbidden and the fabrication and transformation of asbestos products as it is very harmful for the health and which can enter the body by ingestion, through the skin and, the most dangerous of all, through the respiratory system, by inhalation of the dust that it is produced during its handling and cutting, therefore it is necessary to exacerbate the safety measures, pick it up selectively and take it to a treatment centre of homologated wastes.Leer más