In March 2010, the European standards for the design, so-called. Eurocodes, replaced the former Pol

In March 2010, the European standards for the design, so-called. Eurocodes, replaced the former Polish design standards. I will not describe what they are Eurocodes, as this can easily read the blog here and here and here and here. Part Six Eurocodes concerns the design of masonry structures. It is located in the PN-EN 1996-1-2 Eurocode 6 - Design of masonry structures Part 1-2: General rules - Design due to fire conditions. In Annex B standard fire resistance cites tables brick walls of various types of masonry, including calcium-silicate blocks (Silka) and aerated concrete (YTONG). New tables, however, differ from the earlier fire classification, issued by an accredited laboratory fire tests. Previous classifications simply give out that provide fire resistance element of a given thickness. In other words, respond to the question "what kind of fire resistance provides a block / block / Block". Fire classification contained in the Eurocodes used the opposite approach - answers the question: "what is the minimum wall thickness required to achieve the desired resistance to fire". Such an approach to the subject is a nod to the designers whose job involves the selection of materials and technologies that will meet the preset parameters. Finally, kambrook heater the building is primarily to meet the requirements. How, then, should be read in new tables fire resistance? First of all, identify requirements - whether kambrook heater they relate to non-load bearing partitions (classification EI) and carriers (REI). Among the fire classification table also provides information on the walls resistant to impact (EI-M or REI-M) and the walls acting as a support function only (criterion R). In each table contains kambrook heater data for individual groups of masonry construction. Assignment of masonry element to the design kambrook heater group depends primarily on its geometry kambrook heater - Drazen and volume of the system. Next, the table distinguishes between density and / or the strength of masonry, mortar used type (normal or thin joints), kambrook heater and finally the utilization capacity of the wall (below or above 60%). On this basis, the designer is able to determine the minimum wall thickness required to achieve set fire resistance. Example from the table below allows you to specify that to achieve kambrook heater fire resistance REI 120 in the wall of sand-lime brick Silka, loaded below 60% load capacity of masonry with a density of 1 S Group 1800 kg / m 3, and the strength of 20 N / mm 2, brick mortar for thin joints, the minimum thickness of the wall is not plastered between 140 and 170 mm. In addition, the minimum value of brackets for wall plaster. Comparing the fire resistance of the walls of blocks of sand-lime brick and mortar normal to thin joints, soon you will find that the type of mortar does not affect the fire resistance of the walls. Similarly, in the case of cellular concrete kambrook heater walls YTONG. Since the general fire resistance tables located in the PN-EN 1996-1-2 does not take into account the thickness of the blocks and Ytong Silka, we have adapted them to make it easier to choose the available range to the required value. Tables for the walls of the blocks YTONG Silka and references can be found in the table. The row number of material properties: resistance element fb [N / mm ] bulk density ρ [kg / m 3] The minimum wall thickness t F [mm] for REI fire classification for time t fi, d [minutes] 30 45 60 90 120 180 240 1S 1S Group masonry mortar 1S.1: normal 1 ρ 700 2 400 1.S.1.1 1.S.1.2 1.S.1.3 1.S.1.4 α 1.0 90 (90) 90 ( 90) 90 (90) 100 (90/100) 100/170 (100/140) 170 (170) 140/190 (140/190) α 0.6 90 (90) 90 (90) 90 (90) 100 (90/100) 100/170 (100/140) 170 (170) 140/190 kambrook heater (140/190) 1S.2 mortar: for thin joints 1 ρ 700 2 400 1.S.2.1 1.S.2.2 1.S.2.3 1.S.2.4 α 1.0 90 (90) 90 (90) 90 (90) 100 (90/100) 100/170 (100/140) 170 (170) 140/190 (140 / 190) α 0.6 90 (90) 90 (90) 90 (90) 100 (90/100) 100/170 (100/140) 170 (170) 140/190 (140/190)
At Xella deal with the Telemarketing department, management of corporate web pages, the CRM system. Personally I like walking with a camera in hand - a photograph and obróbkowo-graphic classes.
PR deals with real estate and construction. kambrook heater Postgraduate Studies in Public Relations School of Economics and the Faculty of Journalism and Communication, University of Warsaw, currently a student of the Higher School of Real Estate for the developer and investment.
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