The methodology of optimal choice of aerated concrete brand for walls
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 66
Abstract
One of the most effective wall materials is porous concrete, strength and thermal conductivity indicators of which can be changed in wide range, depending on the brand of an average density. By increasing of an average density, the average of thermal conductivity and wall thickness is increased, that is required in terms of thermal protection. Simultaneously the strength increases and the thickness of the walls decreases due to load bearing capacity. The technique of choosing the optimal brand of porous concrete is based on wall thickness aligning, required in terms of thermal protection and load bearing capacity. The object of study is exterior bearing walls that are typical for low-rise residential and public buildings. To solve the optimization problem set an approximate analytical dependence of thermal conductivity and calculated resistance of average density porous concrete. Bearing capacity of the pillar in safety margin, estimated by the strength criteria considering the geometric building options, loads of weight structures and payloads on the floor structures. The basis for selection the optimal brand of a porous concrete is the wall thickness that is required to satisfy conditions of the bearing capacity and thermal insulation of medium density. The equality of thickness, determines the optimal brand of porous concrete of an average density. Calculation samples showed that for erection of 2-3 storied public building, a porous concrete brand D 400…D 500 should be used.
Authors and Affiliations
V. A. , Pashinsky, S. O. , Karpushyn
Keywords
Related Articles
- EP ID EP317516
- DOI -
- Views 162
- Downloads 0
Strengthening of reinforced concrete structures by external reinforcement with composite materials
Investigations of national and foreign achievements in the rehabilitation and reinforcement of reinforced concrete using composite materials containing fibers with high mechanical strength and use of special epoxy resins...
Methodology of numerical modeling by boundary element method (BEM) of development of soil border condition zones of the ring foundation
Since reliability of foundations depends on the ability to assess engineering and geological conditions of bases, their hydrogeological situation, change in these properties during construction and operation, there is a...
Some questions of stability of multi-span continuous rods
The paper is devoted to some problems of stability of straight continuous rods simply supported at the ends and having one or more intermediate rigid or elastic roller supports compressed by axial force constant along th...
Bending strength and deformability of multilayered glass plates with different types of glass
The cohesion of steel and composite fittings with wood through epoxy adhesive has been investigated. Experimental samples of plankglued prisms were tested for the removal of glued fittings. After experimental research, t...
The strength of cement stone on mechanically activated portland slag cement
Discusses the effect of mechanical activation of Portland cement with slag additive on the kinetics of strength development of cement stone. It is established that mechanical activation allows you to enter in Portland ce...