Experimental Research On The Basic Mechanical Behavior Of Autoclaved Flyash-lime Brick Masonry

This thesis is part of the research item of a China Association for EngineeringConstruction research subject for editing "Code for technique application of autoclavedflyash-lime brick masonry structures".Through the experiment on 15 autoclaved flyash-lime solid brick masonry and 12autoclaved flyash-lime perforated brick masonry specimens loaded in axial compression withdifferent category of mortar compressive strength, we get some Physical MechanicalParameters of autoclaved flyash-lime brick masonry such as Compressive strength, theYoung's modulus, Poisson's Ratio and the stress-strain curve(Curveσ-ε). In the samecondition, 6 fired common brick masonry specimens were tested in comparison with them.Based the experiment on 18 autoclaved flyash-lime solid brick masonry and 18autoclaved flyash-lime perforated brick masonry specimens loaded in eccentric compressionwith different category of mortar compressive strength (f₂) and e, we get Compressivestrength, typical failure and strain distribution. Modulus a has also been analysed.Through the experiment on 30 autoclaved flyash-lime perforated brick masonry and 48autoclaved flyash-lime solid brick masonry shear specimens, we get the shear strength ofthem, the effect of mortar compressive strength andξw on the shear strength of brickworkwas studied in this part.Based the experiment on 15 autoclaved flyash-lime solid brick masonry specimensloaded in axial compression and 54 shear specimens both with different joint(appropriativemortar) thickness, we researched the effect of joint thickness on the compressive strength andshear strength.At last, through the experiment on 8 prisms of brick, 9 prisms of mortar, we get thestress-strain curve(Curveσ-ε) of them, based the result of experiment on 35 five-brick prismsloaded in axial compression, we established a theoretical deduction on the formulation of thepressure resistance property of masonry through experimenting found on elasticity, then, theeffect of joint thickness on the compressive strength has been explained in another way.In this thesis we get some beneficial research result from the basic mechanics performance experiment and theoretical analysis, provides some recommendations and dates for editing"Code for technique application of autoclaved flyash-lime brick masonry structures".