What is the friction ratio in cone penetration testing?
The friction ratio Rf in a cone penetration test is local sleeve friction divided by cone resistance, as a percentage. Formula, indicative values per soil type and how to read a CPT log.
What is a fender wale?
A fender wale (Dutch wrijfgording) is a horizontal beam along a quay, jetty or bank revetment that protects boats and stiffens the wall. Materials, construction and tips.
What is smoke leakage resistance (WRD)?
WRD is the Dutch abbreviation for the resistance of a partition to smoke passing through. Sa and S200 classes, the difference from fire resistance, and practical points.
What is a wouterman (shelf bearer)?
A wouterman is a small batten in a cupboard on which a shelf rests, often adjustable in notched uprights. Types, fitting and tips for sturdy shelves.
What is a modular housing unit?
A modular housing unit (Dutch woonunit) is a small, prefabricated, relocatable home, often used for temporary housing. Sizes, uses, permits and tips for buying or renting.
What is a residential block?
A residential block is a building with several homes stacked above and beside each other. Features, access types, and what to watch when renovating a flat in a block.
What is a housing shortage?
A housing shortage is a structural lack of (affordable) homes compared with the number of households. Causes, historical periods, effects and building solutions.
What is Woningborg?
Woningborg is a Dutch warranty body for new-build homes. What its guarantee and insolvency scheme covers, which periods apply, and what buyers should check.
What is a wolfskuil?
The Dutch term wolfskuil can mean a floor grease trap, a defensive pitfall, an Amsterdam cellar light well, or a lewis hole for lifting stone. All meanings explained.
What is whitewash?
Whitewash is a white, matt, lime-based finish for walls and ceilings. Properties, uses, and a step-by-step guide to removing it before applying emulsion paint.