PL4071B1

PL4071B1 - The method of producing wood concrete.

Info

Publication number: PL4071B1
Application number: PL4071A
Authority: PL
Filing date: 1921-09-15
Publication date: 1926-04-30

Description

Przy budowach, szczególnie domów mieszkalnych, ogólne jest dazenie do budo¬ wania scian, odpornych na zmiane tempera¬ tury to jest scian „cieplych". Sciany ze zwy¬ klego betonu sa zimne, jakkolwiek na ci¬ snienie wytrzymale, wiec buduje sie je z pustaków, które tworza warstwy powietrz¬ ne, a wiec izolacyjne, albo jadro betonowe oslanial sie warstwami zle przewodzacemi cieplo, najczesciej z porowatego materjalu.Sciany budowane wedlug wynalazku niniej¬ szego zawieraja obie zalety czyli sa dosta¬ tecznie wytrzymale na cisnienie, a zarazem dzialaja izolacyjnie, jakkolwiek nie posia¬ daja osobnych warstw nieczulych na zmia¬ ny temperatury.Beton drzewny sklada sie wedlug wyna¬ lazku niniejszego z jednej czesci objetoscio¬ wej cementu, 4 czesci objetosciowych pian sku i 4 czesci objetosciowych drzewa! w ka¬ walkach. Drzewo kraje sie na drobne ka¬ walki, najlepiej w ksztalcie kostek o wy¬ miarze okolo 1 cm. Przed uzyciem nalezy je dobrze wymoczyc w wodzie, a nastepnie mieszanine z tych kostek, cementu i piasku ubija sie lub odlewa w zwykly sposób, jak przy budowie scian betonowych.Do budowy murów, które podlegaja wiekszemu cisnieniu, nalezy obrac inny sto¬ sunek cementu, piasku i drzewa, mianowi¬ cie dodac wiecej cementu, podczas gdy inne mury, mniej obciazone, moga byc wiecej po¬ rowate, a zatem lepiej izolujace. Porowa¬ tosc powstaje wskutek tego, ze przy wysy¬ chaniu betonu i równoczesnie czastek drzewnych, jako tez rozkladu ich tworzysie okolo tych ostatnich próznia, wobec cze¬ go i cala sciana jest porowata i gabczasta, a wiec odporna na zmiany temperatury. PLIn construction, especially in residential houses, the general tendency is to build walls that are resistant to temperature fluctuations, that is, "warm" walls. Walls of ordinary concrete are cold, although pressure-resistant, so they are built with hollow blocks, which form air layers, and thus insulating, or the concrete core, were covered with layers of poor thermal conductivity, usually of porous material. The walls constructed according to the present invention have both advantages, i.e. they are sufficiently resistant to pressure, and at the same time work insulating, although they do not have separate layers insensitive to temperature fluctuations. Wood concrete is, according to this invention, composed of one cement volume part, 4 volumetric parts of skim foam and 4 volume parts of a tree! cut into small fights, preferably in the shape of cubes of about 1 cm. Before use, they should be well soaked in water, and then a mixture of these cubes, Cement and sand are compacted or poured in the usual way, as in the construction of concrete walls. For the construction of walls that are subject to more pressure, it is necessary to rotate a different ratio of cement, sand and wood, namely add more cement, while other walls, less loaded, they can be more rough and therefore better insulating. Porosity arises due to the fact that when the concrete and at the same time wood particles dry out, as well as their decomposition, they form around the latter vacuum, so that the entire wall is porous and spongy, and therefore resistant to temperature changes. PL

Claims

1. Patent claim. The method of making wood concrete, characterized by the fact that a mixture of cement, sand and wood in small pieces, well-soaked in water, is compacted like ordinary cement, as a result of which, after drying and time decaying of the tree, a porous wall is formed, well heat insulating and pressure-resistant at the same time. Józef Maslowski. Deputy: A. Bolland, patent attorney. Print by L. Boguslawski. Warsaw. PL