Causes of Variation in Chemical Analyses and Physical Tests of Portland Cement (open access)

Causes of Variation in Chemical Analyses and Physical Tests of Portland Cement

Report discussing variations in comparative tests of portland cements that could lead to the rejection of a material fully conforming to specification requirements, or the acceptance of a material with undesirable chemical or physical properties. Many of the causes for variation in chemical analyses and physical test results are listed in this discussion, and remedies for some of the more frequently encountered deficiencies in apparatus and methods are suggested.
Date: April 27, 1961
Creator: Bean, B. Leonard & Dise, John R.
System: The UNT Digital Library
Chemistry of Cement: Proceedings of the Fourth International Symposium, Washington 1960, Volume 2 (open access)

Chemistry of Cement: Proceedings of the Fourth International Symposium, Washington 1960, Volume 2

From Synopsis: "This paper deals mainly with cement paste in terms of its porosity, internal surface area, interaction between solid substance and evaporable water and related properties."
Date: September 27, 1962
Creator: United States. Bureau of Standards.
System: The UNT Digital Library
HAYSTAQ: a Mechanized System for Searching Chemical Information (open access)

HAYSTAQ: a Mechanized System for Searching Chemical Information

Description of a computer program for searching chemical information on magnetic tape.
Date: September 27, 1965
Creator: Marden, Ethel C.
System: The UNT Digital Library
Thermal Expansion of Insulating Materials (open access)

Thermal Expansion of Insulating Materials

Scientific paper issued by the Bureau of Standards over studies on thermal expansion. Expansivity tests are conducted on many different insulating materials. The results of the tests are discussed. This paper includes tables, photographs, and illustrations.
Date: December 27, 1919
Creator: Souder, Wilmer H. & Hidnert, Peter
System: The UNT Digital Library