The effect of frost on soil
frost action on soil, Cassagrande, Rukliev criterion, soil granulometric composition
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Friction and cohesion of soil
soil friction and cohesion, colloidal activity, clay, sand, effective and neutral stress,
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Capillarity and permeability of soil
soil moisture, capillarity and permeability of soil, water, water film, capillary rise, earth
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Soil compaction
An archival overview of cohesionless and cohesive soil compaction, the Proctor test, optimum moisture content and the effect of compaction energy.
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Soil structure, porosity and moisture
soil structure, cohesionless soil, cohesive soil, soil porosity, soil moisture, water in the ground, cohesionless soil, cohesive soil
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Soil phases and particle-size distribution
An archival overview of soil phases, particle-size distribution, grain classification, coefficient of uniformity and filter rules.
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Types of soil and soil formation
alluvial soil, aeolian soil, fertile soil, loose and bound soil, cohesive and non-cohesive soil, humus, soil mechanics
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Wooden or PVC windows — why choose wooden joinery?
Wooden or PVC windows? The decision will affect how your house breathes, heating bills, how long the joinery lasts and how you feel when you look at your home.
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Repair or purchase new wooden windows?
Should wooden windows be repaired or replaced? Learn the advantages and disadvantages of both options, how to preserve authenticity, save on heating and increase the value of your home. Contact us for a professional assessment and the best solution for your windows.
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Lateral buckling and torsional buckling
Lateral buckling. Buckling in torsion. Lateral-torsional buckling. Simple beam. Critical force. Bending moment. Differential equation.
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Flexural buckling
An archival overview of the buckling differential equation, Euler critical load, built-up compression members and line systems.
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Torsion of bars and thin-walled sections
An archival overview of free torsion, stress functions, the membrane analogy, thin-walled tubes and stresses caused by restrained warping.
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Articles related to selection, use and maintenance.
Featured topics help explain glass, wood, surface protection, and window and door systems.
01 Why can glass break even though no one hit it? Thermal glass breakage and ways to reduce the risk. → 02 How to choose the best glass for joinery and save money? A guide to choosing glass for windows and doors. → 03 The real truth about wooden joinery Existing article about choosing between wooden and PVC windows. → 04 Repair or purchase new wooden windows? Existing article about restoring or replacing wooden windows. → 05 Protecting windows from water and sun Article about protecting wooden windows from weather exposure. → 06 Windows and doors Overview of the role and basic parts of windows and doors. → 07 Glass at a different altitude Article about the effect of altitude differences on insulating glass. → 08 Wood moisture — why it is important to understand it Article about wood moisture and its importance in processing. → 09 Painting and varnishing wooden doors and windows Article about preparation and finishing of wooden surfaces. → 10 Wood-joining technique Article about joints in wooden elements. → 11 Weight and moisture of wood Existing article related to the properties of wood. →
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