Strength and Deformability of Stone Masonry Made of Cellular Concrete Blocks of Autoclaved Hardening with Polyurethane Joints . Part 2 . Bending Tensile Strength

Results of the experimental study of bending tensile of the samples of stone masonry made of cellular-concrete blocks with thin-layer polyurethane joints are presented. On the basis of experimental studies, peculiarities of the destruction of experimental samples have been revealed, values of bending tensile strength of stone masonry along bound and unbound sec- tions have been obtained. The level of anisotropy of bending tensile strength of the masonry with polyurethane joints has been determined. It is established that when the bending moment acts perpendicular to the plane of the masonry with polyurethane joints, its destruction is due to the exhaustion of tensile strength of block’s material. The comparison of results obtained with results of the experimental study of the stone masonry made of cellular concrete blocks with thin-layer glue polymer-cement joints has been made. The difference in the destruction nature of masonry samples on polymer-cement glue solution and adhesive foam as well as their strength characteristics at tensile bending are shown

V.N. DERKACH, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),

Branch of Republican Unitary Enterprise “Institute BelNIIS”, “Scientific-Technical Center” (267/2, Moskovskaya Street, Brest, 224023, Republic of Belarus)

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