Title:
Novel Cements and Cement Products for Applications in the 21st Century
Author(s):
D. M. Roy and M. R. Silsbee
Publication:
Symposium Paper
Volume:
144
Issue:
Appears on pages(s):
349-382
Keywords:
cement pastes; cements; ceramics; flexural strength; high-early-strength cements; moisture; novel cements; porosity; silica fume; strength; waste management; General
DOI:
10.14359/4413
Date:
3/1/1994
Abstract:
Novel cements used in the making of very strong or otherwise high-performance cementitious materials are discussed. These include chemically bonded ceramics (CBC), a generic term describing ceramic-like materials formed by chemical reactions at ordinary temperatures. Innovations in chemistry, as well as processing, are responsible for the major improvements. MDF and DSP cements are discussed briefly, as are rapid-setting belite-sulfoaluminate and related cements. Applications of certain cements in waste management are also discussed. These include alkali-activated cements, which generate very high early strength, develop a working strength in about 4 hr, have relatively low porosity, and consequently have low permeability. A summary is included of the current status of the materials and their applications, limitations, and potential for further innovations, with a view to applications in the 21st century.