Información importante sobre cookies: Utilizamos cookies propias y de terceros para mejorar nuestros servicios. Si continuas navegando, consideramos que aceptas su uso. OK | Más información

Los Angeles test

This test measures the aggregate's resistance to impact and serves, amongst other things, to set the characteristics of the ballast and gravel for the railway track's settling layers. In a standardised procedure, pre-set granulometric fractions of the ballast or gravel are introduced into a horizontal axis rotary cylinder. The cylinder rotates a set number of revolutions at a set speed and the test finishes by separating and weighing particles of less than 1,6 mm (?m' value in grams) formed during the test. The Los Angeles coefficient for ballast is obtained from the LA= (100*m/5000) formula.

Images

Los Angeles test