Download or read book Precision of Quartz Crystal and Mercury Differential Thermometers in Heat of hydration Test written by Leonard Pepper and published by . This book was released on 1969 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The precision of a quartz crystal thermometer was directly compared with that of a mercury differential thermometer in the determination of the heat of solution of a type II low-heat portland cement and a hardened paste made with the cement. The standard calorimeter apparatus was altered to permit (a) the insertion of one crystal probe into the calorimeter and a second crystal probe into the thermal jacket of the calorimeter and (b) the storage of the sample within the calorimeter enclosure. The calorimeter temperature rise was determined during solution of zinc oxide, dry cement, and 7-day hydrated paste. The test precision obtained using the quartz crystal thermometer was far poorer than expected, due to its low thermal mass in contrast to the high thermal mass of the rest of the calorimeter system. It was concluded that improved precision would require a low thermal mass calorimeter and closely controlled ambient temperature. The precision obtained with the differential thermometer was better than expected and was improved by storage of the sample within the calorimeter enclosure. The test results indicated that calibrated differential thermometers are not needed for this test procedure. The test results also indicated that properly prepared zinc oxide does not dissolve at the same rate as dry cement, but dissolves at a rate two to three times as fast as the dry cement. (Author).

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1970 with total page 1730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1976 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by Waterways Experiment Station (U.S.) and published by . This book was released on 1973 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the U S Army Engineers Waterway Experiment Station written by United States. Army. Corps of Engineers and published by . This book was released on 1976 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Defense Industry Bulletin written by and published by . This book was released on 1970 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1969 with total page 1318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Classed Subject Catalog written by Engineering Societies Library and published by . This book was released on 1969 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book HRIS Abstracts written by National Research Council (U.S.). Highway Research Information Service and published by . This book was released on 1970 with total page 1276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1969 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1969-11 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1969 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cumulative Title Index to United States Public Documents 1789 1976 written by Daniel W. Lester and published by . This book was released on 1981 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1969 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research and Development Reports Index written by and published by . This book was released on 1969 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: