Pathological changes waterproof membranes and their identification

Marek Novotný,Ivan Misar,I Juhásová Šenitková

doi:10.1051/matecconf/20179302008

Marek Novotný, Ivan Misar + Show 1 more

Open Access

https://doi.org/10.1051/matecconf/20179302008

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Abstract

With the development of waterproofing systems based on synthetic membranes, especially mPVC, there is an increase in pathological changes of these membranes. Competing manufacturers and pressure on price of the final product have resulted in usage of unstable or low quality raw materials. After production, these materials keep their specific characteristics, however, their aging is accelerated, i.e. they lose their essential qualitative characteristics very quickly. Very important is the detection of these processes which is possible using chemical analysis (gas chromatography, IR analysis and others) as well as using visual inspection of surface by microscope, including 3D modeling. Very important are weldability tests which identify glass transition temperature of the material. The results can then be used as a basis for correct identification of problems with weldability, nonweldability of synthetic membranes, respectively, as well as for identification of normal or abnormal aging of these materials.

Highlights

The price war has already broken out in the building industry
Waterproofing materials based on plasticized PVC, shortly mPVC, are no exception
The mPVC foil is produced by a mix of polyvinylchloride, plasticizers, stabilizers and other admixtures [1]

Summary

Introduction

The price war has already broken out in the building industry. Waterproofing materials based on plasticized PVC, shortly mPVC, are no exception. The investors are ultimate victims, who must deal with complaints, and reduced durability of waterproofing materials, especially in roof constructions. This situation does concern to foil waterproofing materials, and waterproofing materials base on asphalt. The problem of shortened durability does not arise immediately after its production, but after incorporation into the building constructions. This condition is characterized as accelerated aging of waterproofing materials of mPVC type. The aging is accelerated with respect to increasing surface of evaporation (Figure 12)

Materials testing

Conclusion