Papers by Keyword: Structure Defect

Abstract: Wooden claddings are often being used as a façade layout in recent times. However, there are many possible problems with this construction, either aesthetic or even functional. A drawback is that they might be revealed after longer time period, when it comes to a serious issue. These problems are mainly caused by impropriate mounting of the support structure, impropriate dilatation not respecting various material properties etc. In this article, an example of such problematic cladding mounting on a façade of two-floor family house is presented. Wooden cladding of this house is uneven, cracked, particular planks have different shades, they are not parallel etc.

Abstract: Preparation of porous ceramic body foamed by microbe is prone to structure defects such as inequality of pore size and distribution, crack, contraction deformation, etc. Four-level orthogonal tests based on three improving factors such as water content(WC) and carboxymethyl cellulose (CMC) and stirring time(ST) were carried out to improve the method of preparing porous ceramic body foamed by microbe at ordinary tempreature. It is concluded that water content is the key improving facor followed by stirring time and CMC content, and the optimized formula could be A3B3C1 or A3B4C2.