Title:
A Fundamental Study on Hydration of Cement with Steam
Author(s):
Wei-Ming Lin, T. D. Lin, C. L. Hwang, and Y. N. Peng
Publication:
Materials Journal
Volume:
95
Issue:
1
Appears on pages(s):
37-49
Keywords:
cement; compaction; compounds; dry-mix/steam injection; fineness;
heat of hydration; steam hydration; thermocouples;
DOI:
10.14359/350
Date:
1/1/1998
Abstract:
This paper discusses the basic concept of steam hydration and presents test data on heat of hydration by exposing cement compounds to pressurized steam. The test samples include cement and its individual compounds; tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and tetracalcium aluminoferrite (C4AF). For a compacted 10 grams C3S sample, the heat of hydration was determined as 209 cal/g. All samples except C3A hardened during steaming. Nonetheless, the C3A samples reacted very rapidly with steam and registered a 91 deg C temperature rise during the test. This paper also discusses effects of sample's fineness and degree of compaction on heat evolution and hydrate morphology during exposure to steam. The test results verify the validity of the Dry-Mix/ Steam-Injection (DMSI) concept.