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Skład zapraw w murach obronnych Starego Miasta w Warszawie

100%

Jarmontowicz A., Krzywobłocka-Laurów R.

Ochrona Zabytków

1996

issue 4

359-364

The authors examined the composition o f twelve samples o f mortar from the defensive binding o f brick walls in the Old Town in Warsaw. The researchers applied the X-ray method, thermal analysis and observations with an optical and scanning microscope. The composition o f the hardened mortar made it possible to determine the original composition. Two groups: lime and cement-lime were distinguished from the point o f view o f the composition o f the mortar in question. A characteristic feature o f the cement-lime mortar was the differentiated contents o f the binder. The relation between the binding and sand in this case oscillated from 1:1,8 to 1:6,2.

Konserwacja murów z cegły suszonej na słońcu

100%

Skibiński S.

Ochrona Zabytków

1990

issue 3

123-134

Structures made of sun-dried brick (adobe) can be found all over the world, in desert-climate regions. They came into being in various periods and in various cultures in the western parts of both Americas, in north Africa, in the Near East, in central Asia and also to a small extent in Australia. Also in Europe, clay was used sporadically in the construction of various rural structures. The choice of clay as building material in dry-climate areas was no doubt optimal. On the one hand, structures could be built in practically any place, because the acquisition and preparation of clay was an easy and uncomplicated process. On the other hand, this material is characterized by good durability in this climate and secures the appropriate heat-humidity comfort of the interior, being a shield for the inhabitants against intense insolation during the day, and high chilling during the night. Thaus, historically valued structures were created from adobe. I shall name only two existing near the town of Trujillo (Peru) at the foot of Mount Cerro Blanco, the pyramids: the gigantic Sun pyramid and the smaller Moon pyramid. As part of laboratory and field work, in 1987-1988, in the vicinity of Nasca (Peru), possibilities were seen of conducting conservation of structures existing in sector A of the Ceremonial Centre at the Cahuachi archaeological site. The technology of obtaining sun-dried brick was recreated and the recipe of clay mortar was developed for supplementing losses in walls, based on montrhorillonite clay acquired in the vicinity of the construction. In addition, there was successful development of the technology of preliminary surface strengthening of the walls for the period of conducting conservation work, by means of Synthetic Cola aqueous dispersion (Peru) and the surface hydrophobic protection by means of Imlar C PC 1175 T (Du Pont) aqueous acrylic-fluoric dispersion.

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2 Ochrona Zabytków

1 Jarmontowicz A.

1 Krzywobłocka-Laurów R.

1 Skibiński S.

1 1996

1 1990

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Skład zapraw w murach obronnych Starego Miasta w Warszawie

Konserwacja murów z cegły suszonej na słońcu