Title:
Lightweight Concrete with Bottom Ash: Radiological Aspects
Author(s):
M. Nisnevich, T. Schlesinger, Y. Eshel, and Y. Grof
Publication:
Materials Journal
Volume:
96
Issue:
2
Appears on pages(s):
250-254
Keywords:
aggregate; cement; lightweight concretes; radioactivity; sand
DOI:
10.14359/452
Date:
3/1/1999
Abstract:
This work presents the results of a research carried out at the Research Institute of the College of Judea and Samaria (study of raw materials and lightweight concrete properties) and at the Soreq Nuclear Research Center (study of the activity concentration of radionuclides in raw materials and lightweight concrete and their radiological implication). Furnace bottom ash from Israel’s thermal power stations is a prospective material as an aggregate in lightweight concretes. Utilization of furnace bottom ash wastes can offer a solution to persistent ecological problems related to the disposal of the ash, as well as solving economical problems of building materials production.Lightweight concrete based on furnace bottom ash is a promising material for construction (walls, ceilings) in civil engineering. However, by using furnace bottom ash as an aggregate, it is necessary to take into consideration the fact that products of coal combustion contain certain quantities of radionuclides. The current study was carried out to evaluate the radioactivity of lightweight concrete based on furnace bottom ash from Israel’s power stations, to study ways of reducing the radioactivity and to examine the compliance of the product with legal requirements.