The Research On Basic Behaviors Of Self-insulation Tenon Type Block Masonry

The self-insulation tenon type block is a new type wall material that light andenergy-saving, this kind of hollow block can be promoted as bearing loads andinsulation material, it is suitable for popularizing and using in hot summer and coldwinter region, so for self-insulation tenon type block masonry’s the research of basicmechanical properties and thermal performance is especially important. In this article,through the analysis of experimental data, according to the self-insulation tenon typeblock from the aspects such as physical properties, mechanical properties, thermalproperties were studied in detail:1.Physical and mechanical performance of the self-insulation tenon type block.Through the test obtained this kind of block of compressive strength, flexural strength,density, hollow rate, bibulous rate, moisture content, relative water content, softeningcoefficient, etc., let the test results comparing with lightweight aggregate concretesmall hollow block specification, all have reached the standard requirements.2.Basic mechanical properties of the self-insulation tenon type block masonry.Through test and research of compressive strength and shear strength of ungroutedmasonry and grouted masonry, to understand block masonry compression and sheartest process phenomenon, based on the analysis of experimental results, respectivelystudied compressive strength, elastic modulus, poisson’s ratio, compressive stress-strain curve and shear strength of ungrouted masonry and grouted masonry, on thebasis of compression test data of ungrouted masonry and grouted masonry to fit fortheir respective masonry constitutive equation. A comparison of ungrouted masonryand grouted masonry indicates that grouted masonry its initial cracking load andfailure load is improved obviously, when damaged the number of cracks more thanthose in ungrouted masonry, in terms of stress-strain curve, grouted masonry showedmore significant nonlinear characteristics.3.Numerical simulation analysis of axial compressive strength of theself-insulation tenon type block masonry. Based on test results, this paper uses ANSYSsoftware to establish a separate model, to research on deformation and cracksdistribution of masonry, and calculating mechanical parameters of the masonry such asbearing capacity, peak stress and strain, by comparison with experimental results, thefinite element calculation results and the measured values are basically identical.4.Thermal performance of the self-insulation tenon type block masonry.Specification provides the calculation method for the heat preservation and heatinsulation performance of the self-insulation tenon type block masonry are analyzedtheoretically, and through tests determined the heat transfer coefficient of the self-insulation tenon type block masonry, the calculation results and test data show thatthe self-insulation tenon type block’s design adopts rectangle holes staggered, forblock the effect of heat conduction route has extended and beneficial to theimprovement of the masonry thermal resistance. Heat preservation and heat insulationperformance of the self-insulation tenon type block masonry meet building envelopeenergy saving requirements in hot summer and cold winter area, in line with nationalpolicy of energy saving.