Open AccessInfluence of wood-concrete material structure on strength and deformation properties
Author(s) -
В. И. Запруднов,
AUTHOR_ID
Publication year - 2022
Publication title -
lesnoj vestnik
Language(s) - English
Resource type - Journals
ISSN - 2542-1468
DOI - 10.18698/2542-1468-2022-1-91-96
Subject(s) - shrinkage , composite material , materials science , pressing , aggregate (composite) , filler (materials) , deformation (meteorology) , prism , volume (thermodynamics) , compression (physics) , compressive strength , perpendicular , physics , quantum mechanics , optics , geometry , mathematics
It is established that with an increase in the length of the filler particles, the axial compression strength of the wood-concrete material (arbolite) increases, and the volume shrinkage decreases. An increase in the linear shrinkage of the arbolite across the prism parallel to the direction of the pressing force and a decrease in the linear shrinkage across the prism perpendicular to the direction of the pressing force with an increase in the length of the filler particles is determined. An increase in the specific pressure of pressing arbolite with an increase in the length of the filler particles was revealed. Studies have shown that the dependence of the strength of arbolite is inversely proportional to the content of water-soluble wood substances in the organic aggregate of which it is made, its shrinkage, the specific surface area of the aggregate, water consumption and the volume content of wood filler in arbolite. Theoretically necessary for a chemical compound, the water-concrete ratio In/C is 0,4, however, from the condition of the workability of arbolite, the ratio In/C is recommended to be equal to 0,7...0,8.