Wyniki wyszukiwania - BazTech

1

Biodeterioration Due to Improper Exploitation of External Facades

Piontek M., Lechów H.

Civil and Environmental Engineering Reports

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2018

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Vol. 28, no. 3

145--154

EN

Unaesthetic stains and deposits often form on external facades (especially those facing the north) in places where barriers were installed on them. Such places include, for example: fragments of facades in which external window sills were mounted, canopies, downspouts, boxes, advertising billboards, flags holders, lightning conductors, aerials as well as facade steps, and many others. During exploitation, elevations are exposed to water retention. In places were barriers are installed, moisture occurs with greater intensity than in other parts of the facade. Over time, in addition to the aesthetic problem, this results in biodeterioration (biological corrosion), induced by the deposited biological factors. The article presents the issue of placing barriers on external facades, on the example of buildings developed in Zielona Góra.

PL

Na elewacjach zewnętrznych ( szczególnie północnych) w miejscach wystąpienia barier pojawiają się nieestetyczne zacieki lub naloty. Miejsca, o których mowa w artykule to np.: fragmenty elewacji, w których zamontowano parapety zewnętrzne, daszki, rury spustowe, skrzynki, bilbordy reklamowe, uchwyty na flagi, piorunochrony, jak również uskoki elewacji i inne. Podczas eksploatacji elewacje narażone są na retencję wodną, a miejscach usytuowania barier zawilgocenie występuje z większym nasileniem, niż na pozostałych fragmentach elewacji. Z czasem oprócz problemu estetycznego dochodzi do powstania biodeterioracji (korozji biologicznej), wywołanej przez osadzające się czynniki biologiczne. W artykule przedstawiono problem związany z umieszczaniem barier na elewacjach zewnętrznych, na przykładzie budynków w Zielonej Górze.

2

Wykwity - można sobie z nimi poradzić

Wojtasik P.

Ceramika Budowlana

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2012

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nr 1

9-10

PL

W artykule autor podaje przyczyny i skutki występowania wykwitów, a także sposoby na ich uniknięcie a jeśli już powstaną to i tajniki ich usuwania. Jak pisze, zjawisko powstawania wykwitów jest z założenia zawsze zjawiskiem skończonym. Ponadto nie ma ono wpływu na trwałość materiału czy jego parametry techniczne - jedyny jego negatywny wpływ na konstrukcję to obniżenie estetyki.

EN

In this article the author gives reasons for and consequences of occurrence of eruptions, and how to avoid them and if they arise and secrets to their removal. As he writes, the phenomenon of efflorescence is by definition always a finite phenomenon. In addition, it has no effect on the durability of the material and its parameters - the only of its negative impact on reduction of aesthetic design.

3

Segregation in sympatrically nesting red-winged starling Onychognathus Morio (L.) and European Starling Sturnus Vulgaris L.

Kopij G.

Polish Journal of Ecology

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2009

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Vol. 57, nr 3

589-595

EN

If two related species come into contact, it could be expected that, in order to coexist, they will either shift their niches apart from each other or one species will replace the other in the course of ever growing competition. Recently, two starling species, the indigenous Red-winged Starling and the exotic European Starling, came into contact in some places in Lesotho (southern Africa). In this paper, some breeding parameters of these species have been compared in an area of their co-occurrence. Studies were carried out in an urbanised habitat in Lesotho, in four consecutive breeding seasons (August-March) during the years 1998-2001. The average density of the Redwinged Starling was 13.8 pairs 100 ha[^-1], while that of the European Starling was 9.3 pairs 100 ha[^-1]. The proportion of the Red-winged Starling to European Starling breeding pairs (1.0:0.7) was strikingly constant over the four consecutive breeding seasons. Most Red-winged Starling breeding territories (78%, N = 56) were located within builtup areas, while most European Starling territories were located either within built-up areas (25%) or on the border of built-up areas and open areas (59%, N =41). Most Red-winged Starling nests (96%) were situated in buildings (N = 46), while European Starling nests were located both in tree holes (43%) and in buildings (57%, N = 28). Both starling species show high nest site tenacity. The Red-winged Starling daily activity pattern during the nestling phase differed considerably from that of the European Starling. Although both starling species do not overlap their feeding niches and daily and seasonal activities, their sympatric occurrence in urbanised habitats may be limited, if suitable nesting sites are lacking.

4

Co powoduje powstawanie wykwitów solnych?

Gąsiorowski S.

Materiały Budowlane

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2008

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nr 9

86-87

5

Obrona przed rozpoznaniem i uderzeniami z powietrza : doświadczenia z wojny w Zatoce Perskiej

Jauer T.

Wiedza Obronna

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2001

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nr 4

43--65