BASE COURSE MATERIAL MADE OF GRANULATED MATERIAL PRODUCED FROM SLUDGE

摘要

PPROBLEM TO BE SOLVED: To provide a base course material made of a good quality granulated material obtained from construction sludge, regenerated aggregate, and incinerated ash. PSOLUTION: Dewatered cake obtained by dewatering process of construction sludge is supplied to a rotary feeder together with 5-15 wt.% cement and water and granulated by mixing/kneading in the rotary feeder. The obtained granurated material is cured for a certain time and then dried to produce recycled sand. The recycled sand, classified aggregate in 20-40 mm size, classified aggregate in 10-20 mm size, and incinerated ash finer than 5 mm are mixed together to get the base course material. PCOPYRIGHT: (C)2005,JPO&NCIPI