---

Cement Kiln Dust (CKD) is a voluminous co-generated
product of the cement manufacturing process. This
book presents the feasibility of incorporating CKD,
from various sources, as a replacement for Portland
cement in the development of Controlled Low Strength
Materials (CLSM) with acceptable properties.
The findings show that with a little Portland cement
and moderate volumes of CKD a good mix that easily
satisfies the requirements of CLSM can be developed.
Suitable CLSM mixes can also be produced without
Portland cement, using CKD alone. The latter mixes
showed reasonable fresh and hardened properties,
however, increased shrinkage was observed.
Sustainable development in the cement industry can be
achieved by producing CLSM with moderate volumes of
CKD as it reduces the use of Portland cement and
consumes a co-generated product that has little or no
current use. This book should be useful to cement
companies or anyone else in the construction industry
that is interested in a cost effective sustainable CLSM.

---

Wafiq M. Thaha, P.Eng, M. A. Sc.: Ryerson University, Toronto.Technical Services Engineer at St Marys Cement

---