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Natural Weathering Of Mineral Stabilized Asphalt Coatings On Organic Felts
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Book Synopsis Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt by : Sidney H. Greenfeld
Download or read book Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt written by Sidney H. Greenfeld and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixteen years of outdoor weathering of laboratory-prepared smooth-surface and mineral-surfaced, felt-base roofing specimens has provided information on the effects of mineral additives on the durability of coating-grade roofing asphalts. Six finely divided mineral additives (blue black slate, clay, dolomite, fly ash, mica, and silica) were evaluated at concentrations up to 60 percent in California, Mid Continent and Venezuela asphalts. The mineral-surfaced specimens are all performing satisfactorily, and show only minor degrees of degradation. Of the smooth-surfaced specimens, the Mid-Continent asphalt performed the best and the California asphalt the poorest. The mica and blue black slate increased the durabilities of all three asphalts at all concentrations and two coating thicknesses. Fly ash, clay, dolomite, and silica were beneficial in some combinations, but had little effect in others. In general, these early results from outdoor exposure tend to corroborate the results obtained on these coatings exposed in weatherometers. (Author).
Download or read book Building Science Series written by and published by . This book was released on 1969-10 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of Technical Meeting Concerning Wind Loads on Buildings and Structures by : Richard D. Marshall
Download or read book Proceedings of Technical Meeting Concerning Wind Loads on Buildings and Structures written by Richard D. Marshall and published by . This book was released on 1970 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Engineering Aspects of the 1971 San Fernando Earthquake by : Hai Sang Lew
Download or read book Engineering Aspects of the 1971 San Fernando Earthquake written by Hai Sang Lew and published by . This book was released on 1971 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Building Science Series by : United States. National Bureau of Standards
Download or read book Building Science Series written by United States. National Bureau of Standards and published by . This book was released on 1972 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interrelations Between Cement & Concrete Properties by : Benjamin Leonard Bean
Download or read book Interrelations Between Cement & Concrete Properties written by Benjamin Leonard Bean and published by . This book was released on 1969 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 1939 Exposure Test of Porcelain Enamels on Steel 30-year Inspection by : Margaret A. Baker
Download or read book 1939 Exposure Test of Porcelain Enamels on Steel 30-year Inspection written by Margaret A. Baker and published by . This book was released on 1971 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The weather resistance of 192 porcelain enameled panels representing 14 enamel types was evaluated after being exposed for 30 years at Washington, D.C.A direct correlation was found between the acid resistance and weather resistance of the enamels tested.The porcelain enamel protected the base metal from corrosion if the initial coverage was complete.Similar evaluations and findings were made on 58 panels representing 13 enamel types that were added to this test in 1947.(Author).
Book Synopsis Performance of Louvered Devices as Air Mixers by : T. K. Faison
Download or read book Performance of Louvered Devices as Air Mixers written by T. K. Faison and published by . This book was released on 1970 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of a study evaluating methods for reducing thermal gradients within the cross section of an air stream, three louvered mixing devices were investigated. Each of these devices was found to be capable of reducing the cross-sectional nonuniformity of air temperature to a few percent of the entering value.
Book Synopsis Paper Honeycomb Sandwich Panels as Lightweight Structural Components by : Thomas W. Reichard
Download or read book Paper Honeycomb Sandwich Panels as Lightweight Structural Components written by Thomas W. Reichard and published by . This book was released on 1972 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper presents a resume of current practice in the U.S. with regard to the use of sandwich panels in single-story buildings. A description and the properties of typical paper honeycomb cores are given. Some of the factors which are considered in choosing sandwich facings and adhesives are given.
Book Synopsis Interrelations Between Cement and Concrete Properties by : Raymond Leonard Blaine
Download or read book Interrelations Between Cement and Concrete Properties written by Raymond Leonard Blaine and published by . This book was released on 1971 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The studies of the interrelations between cement and concrete properties are presented in a series of related articles.This first section presents the type classification of the cements and the areas from which they were procured together with the tests performed on the cements and concretes.Also presented are the methods employed in the statistical treatment of the data and a discussion of the significance of the various statistical techniques employed in the following sections dealing with specific aspects of the interrelations between cement and concrete properties.(Author).
Book Synopsis 1964 Exposure Test of Porcelain Enamels on Aluminum by : Margaret A. Baker
Download or read book 1964 Exposure Test of Porcelain Enamels on Aluminum written by Margaret A. Baker and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: An exposure test of porcelain enamels on aluminum was initiated by the National Bureau of Standards and the Porcelain Enamel Institute in 1964.The enamels were returned from the exposure sites to the laboratory at NBS to be measured for changes in gloss and col * or after exposures of six months, one year, and three years.Changes were found to be greatest at Kure Beach and least at Montreal and Los Angeles, with moderate changes occurring at Washington and New York.Although the boiling citric acid test is used as an acceptance test for these enamels, the correlation with color change, particularly at Kure Beach, was not as good as expected.A cupric chloride test was developed which shows an improvement in this correlation.(Author).
Book Synopsis Radiation Errors in Air Ducts Under Nonisothermal Conditions Using Thermocouples, Thermistors, and a Resistance Thermometer by : Joseph C. Davis
Download or read book Radiation Errors in Air Ducts Under Nonisothermal Conditions Using Thermocouples, Thermistors, and a Resistance Thermometer written by Joseph C. Davis and published by . This book was released on 1969 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies were made to determine the radiation error in temperature measurements made with thermocouples, thermistors, and a resistance thermometer in moving air at velocities ranging from 300 to 1300 fpm when the temperature of the duct wall surrounding the air stream was from 0 to 50 deg F higher than that of the air in the center of the duct. To eliminate all but the variable under study, conduction errors were minimized to a point where they were almost nonexistent by using Chromel P-constantan thermocouple wire and by employing other techniques. Radiation effects were studied when the probe housing the three types of temperature sensors was unshielded and again when it was shielded. Under the test conditions that prevail in the testing of air conditioners and heat pumps in laboratories, it should be possible to reduce the error in temperature measurement of the moving air to about 0.2 deg F by a suitable combination of air mixers, duct insulation, radiation shields, and calibration techniques. (Author).
Book Synopsis Building Science Series by : Henry E. Robinson
Download or read book Building Science Series written by Henry E. Robinson and published by . This book was released on 1970 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications by : United States. National Bureau of Standards
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1969 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Bureau of Standards by : United States. National Bureau of Standards
Download or read book Publications of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1968 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Bureau of Standards ... Catalog by : United States. National Bureau of Standards
Download or read book Publications of the National Bureau of Standards ... Catalog written by United States. National Bureau of Standards and published by . This book was released on 1968 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Institute of Standards and Technology ... Catalog by : National Institute of Standards and Technology (U.S.)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1970 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
