JA-170
LENGTH GAUGE
BS-812
For rapid measuring the length of aggregates
Hard wood base, steel base plate, distance: 89.0, 62.86, 39.9, 28.5, 20.1, 14.2 mm
JA-180
THICKNESS GAUGE
“For determing the flakiness index
of coarse aggregate. Galvanized
metal sheet, hole size 100 x 33.9,
90 x 26.3, 80 x 19.7, 60 x 14.4,
50 x 10.2, 40 x 7.2, 30 x 4.9
“