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Trylinka
From Wikipedia, the free encyclopedia
Trylinka (Polish: [trɨˈliŋka] ⓘ; pl. trylinki), also known as shashka Trylins'koho (Ukrainian: шашка Трилінського, lit. 'Tryliński's paving block'),[1] is a concrete block in the shape of a regular hexagon or occasionally a tetragon, with stone fragments embedded in its upper layer. Different stone varieties, which include basalt and porphyry, are used for the embedments depending on the local availability of the stones. Inexpensive, durable and relatively simple to build, trylinki were mass-produced and used on a large scale in the construction of roads in interwar Poland, covering an estimated 1 million square metres (11×10^6 sq ft) of surface area between 1933 and 1938.[2][3] Some of those roads are in present-day Belarus and Ukraine.
Trylinka was named after its inventor, Władysław Tryliński, a transportation engineer recognised for the engineering design of the Maurzyce Bridge, a credit he shared with construction engineer Stefan Bryła.[4] Whilst Tryliński was overseeing construction aggregate and paving slab productions at the Miękini porphyry quarry [pl], he noticed that the production processes left large amounts of fragmented stone wastes, leading to the idea of recycling the fragments as embedments in trylinki.[5]