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Title: HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE

Low cost material is needed for grouting abandoned retorts. Experimental work has shown that a hydraulic cement can be produced from Lurgi spent shale by mixing it in a 1:1 weight ratio with limestone and heating one hour at 1000°C. With 5% added gypsum, strengths up to 25.8 MPa are obtained. This cement could make an economical addition up to about 10% to spent shale grout mixes, or be used in ordinary cement applications.
Authors:
; ;
Publication Date:
OSTI Identifier:
1072214
Report Number(s):
LBL-11071
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: 13th Oil Shale Symposium, Golden, CO, April 16-18, 1980
Research Org:
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
Sponsoring Org:
Environmental Energy Technologies Division
Country of Publication:
United States
Language:
English
Subject:
04 OIL SHALES AND TAR SANDS