skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Use of sewage sludge ash (SSA)-cement admixtures in mortars

Journal Article · · Cement and Concrete Research
; ; ;  [1]
  1. Univ. Politecnica de Valencia (Spain). Dept. de Ingenieria de la Construccion

The chemical composition of sewage sludge ash (SSA) and their sized fractions are studied; some differences in chemical composition are observed. SEM studies show irregular shape of SSA particles and sized fractions, this shape has a decisive influence on workability of mortars. The effect of replacing 15% of portland cement by SSA and their sized fractions: coarse (SSAC) and medium (SSAM) obtained by sieving on compressive (R{sub c}) and flexural (R{sub f}) strength of mortars was investigated. The study reveals an enhancement of strength when ashes are used, due to probably, pozzolanic properties of SSA.

OSTI ID:
377997
Journal Information:
Cement and Concrete Research, Vol. 26, Issue 9; Other Information: PBD: Sep 1996
Country of Publication:
United States
Language:
English