Novoplast® - Double waterproofing

206 views

Published on

An essential element for the longevity of concrete structures is to provide an efficient waterproofing
to protect the structure against the corrosive action of water. The double waterproofing system
occupies a central place to satisfy these conditions.
Eurovia is innovating in this area by proposing a waterproofing process new and reliable, which finds
its advantage over all types of works, new or maintenance, Novaplast®.

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
206
On SlideShare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Novoplast® - Double waterproofing

  1. 1. WATERPROOFING PROCESS novAplast  Double waterproofing ®
  2. 2. novaplast® waterproofing process An essential element for the longevity of concrete structures is to provide an efficient waterproofing to protect the structure against the corrosive action of water. The double waterproofing system occupies a central place to satisfy these conditions. Eurovia is innovating in this area by proposing a waterproofing process new and reliable, which finds its advantage over all types of works, new or maintenance, Novaplast® key benefits key figures structure that can be adapted to all A types of traffic 2 components process used both in new construction A and maintenance for a perfect waterproofing etter long-term view in terms of B management and maintenance strategy of the structure A process chosen in 2011 as part of the call for Innovation Road launched by the Ministry of Ecology, Sustainable Development, Transportation and Housing (MEDDTL) and by the Setra, in the « sustainability of civil engineering structures » category.
  3. 3. Yesterday background Today’s solution The waterproofing of structures in France falls into identified categories: mastic asphalt, prefabricated bituminous sheets possibly protected by mastic asphalt, resins and mechanized high-rate systems. After consideration, the main way of reducing costs has been identified: substituting the mastic asphalt by a «traditional» bituminous micro-asphalt mix which will be produced in asphalt plants and applied by equipment specific to the roadworks industry. Many project managers and owners prefer a waterproofing based on prefabricated sheets protected with mastic asphalt, mainly for security reasons. The mastic asphalt has however two major drawbacks: Only a few production units, Application at low rate. The system which was then chosen consists of a prefabricated sheet protected by a bituminous microasphalt mix specially designed to maximize its level of density and give it de facto waterproofing properties. This solution keeps the advantage of the «double» waterproofing, longevity token. The challenge was therefore to provide a waterproofing system more flexible in terms of production and application, in order to reduce costs, while remaining on a system based on two waterproofing components that ensure sustainability. In order to protect the waterproofing of the structure for years and future works, the idea of introducing a pigment in the micro-asphalt mix emerged. This measure makes it detectable during maintenance operations, which will facilitate the work of operators responsible for the repair of the wearing course. This feature has led Eurovia to apply for a patent. Thanks to this colorful innovation, the client can count on a durable waterproofing system able to bear several maintenance sequences of the surface layer. This last aspect gives to the new system an adequacy for each component of the whole structure between its function and its lifetime: On one hand, the waterproofing system ensuring its structural protection role as long as possible, On the other hand, the wearing course which is directly in contact with the external factors such as traffic and climate and should therefore be replaced more often.
  4. 4. A METHODICAL AND CONTROLLED application old impregnating varnish. Unlike conventional C varnishes based on solvents, the new varnish, used preferentially for Novaplast®, is a solvent-free emulsion. ne-component liquid resin to carry out the O waterproofing edges (generally vertical parts waterproofed so far with sheet). As the varnish presented above, this product is bringing progress for working conditions of application teams. refabricated bituminous sheet. It consists of a filler P added bituminous binder highly modified by polymers SBS and a non-woven polyester steel frame. This sheet also has a Technical approval for over 10 years and is therefore largely proven with millions of square meters of references. icro-asphalt mix Microplast® N with highly modified M bitumen Styrelf® 13/40. Applied from 25 to 30 mm thick, its high density brings a supplement to the waterproofing of the process. The binder provides excellent resistance to rutting, fatigue and cracking. earing course of minimum thickness of 45 mm. In W the common case, it will be a Semi-Coarse Asphalt Concrete 0/10 or High Modulus Asphalt Concrete 0/10. The important mechanised laying process allows cost reduction. First, the sheet is rolled out and hot-bonded onto the support by a secured device working with hotair, automatically guided. The rate of laying can reach up 2,000 m2/day while the same operation performed manually only reaches about 100 m2/day. Secondly, the micro-asphalt mix is produced in traditional mixing plant and applied by common equipment specific of the roadworks industry. These equipments are available in all Eurovia divisions, which represent an important network. This solution therefore reduces transport between the mixing plant and the jobsite in comparison with the mastic asphalt technique. Novaplast® is the subject of a request for a patent. Novaplast® is the subject of a request for a Technical approval. Novaplast® is selected in 2011 as part of the IDRRIM Innovation Awards. Novaplast® is a registered trademark TECHNICAL DEPARTMENT 18, place de l’Europe - 92565 Rueil-Malmaison cedex Tel. : 33 (0)1 47 16 38 00 - Fax : 33 (0)1 47 16 38 01 www.eurovia.com technique@eurovia.com - January 2013 - photos credit: photolibrary Eurovia After careful cleaning of the substrate, the various components of the Novaplast® process are applied as follows:

×