Thermal Shock Resistance For Built Up Membranes
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Author | : William C. Cullen |
Publisher | : |
Total Pages | : 28 |
Release | : 1967 |
Genre | : Building materials |
ISBN | : |
Download Thermal-shock Resistance for Built-up Membranes Book in PDF, Epub and Kindle
The resistance of bituminous built-up roofing membranes to thermally induced forces is considered in terms of their strength properties such as breaking load in tension, modulus of elongation and apparent linear thermal expansion coefficient.The development of a Thermal-Shock Resistance Factor is described and values are given for three bituminous built-up membranes at temperatures of - 30F (-34.4C), 0F (-17.8C), 30F (-1.1C) and 73F (22.8C).The apparent relation between the values obtained in the laboratory and the observed performance of roofing membranes in service is considered.The utilization of the Thermal-Shock Resistance Factor in the reduction of potential failures of bituminous built-up roofing membranes in service from thermally induced forces is also discussed.(Author).
Author | : William C. Cullen |
Publisher | : |
Total Pages | : |
Release | : 1966 |
Genre | : Bituminous materials |
ISBN | : |
Download Thermal-shock Resistance for Bituminous Built-up Roofing Membranes Book in PDF, Epub and Kindle
Author | : T. H. Boone |
Publisher | : |
Total Pages | : 13 |
Release | : 1967 |
Genre | : Bitumens |
ISBN | : |
Download Progress in the Development of a Thermal-Shock-Resistance Factor for Bituminous Built-Up Roofing Membranes Book in PDF, Epub and Kindle
The resistance of bituminous built-up roofing membranes to thermally induced forces is considered in terms of their strength properties such as breaking load in tension, modulus of elongation, and apparent linear-thermal-expansion coefficient. The development of a thermal-shock-resistance factor is described and values are given for three bituminous built-up membranes at temperatures of -30 F (-34.4 C), 0 F (-17.8 C), 30 F (-1.1 C), and 73 F (22.8 C). The apparent relation between the values obtained in the laboratory and the observed performance of roofing membranes in service is considered. The utilization of the thermal-shock-resistance factor in the reduction of potential failures of bituminous built-up roofing membranes in service from thermally induced forces is also discussed.
Author | : United States. National Bureau of Standards |
Publisher | : |
Total Pages | : 35 |
Release | : 1967 |
Genre | : |
ISBN | : |
Download Thermal-Shock Resistance For Built-Up Membranes Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 13 |
Release | : 1967 |
Genre | : |
ISBN | : |
Download Thermal-shock Resistance for Built-up Membranes [with List of References; Book in PDF, Epub and Kindle
Author | : Thomas H. Boone |
Publisher | : |
Total Pages | : 20 |
Release | : 1968 |
Genre | : Roofing |
ISBN | : |
Download Laboratory-field Comparisons of Built-up Roofing Membranes Book in PDF, Epub and Kindle
The values of breaking load, elongation and thermal expansion of nine bituminous built-up membranes prepared by roofing contractors under field conditions and by technicians in the laboratory were measured at sub-freezing temperatures.The data indicated that the field-prepared specimens agreed favorably with laboratory-prepared specimens, although the samples from the field frequently reflected higher values for thermal-shock resistance than did their laboratory-prepared counterparts.The higher values were attributed to the smaller amounts of bitumen used between the plies of the field specimens.The results appeared to support the validity of the application of the 'strength-thickness rule' to bituminous built-up membranes.(Author).
Author | : |
Publisher | : |
Total Pages | : 500 |
Release | : 1970 |
Genre | : Engineering |
ISBN | : |
Download Journal of Research of the National Bureau of Standards Book in PDF, Epub and Kindle
Author | : Robert G. Mathey |
Publisher | : |
Total Pages | : 24 |
Release | : 1974 |
Genre | : Roofing, Bituminous |
ISBN | : |
Download Preliminary Performance Criteria for Bituminous Membrane Roofing Book in PDF, Epub and Kindle
This report is the first in a series of publications on performance criteria for built-up roof membranes. The development of a performance approach to bituminous built-up roof membranes is described and preliminary performance criteria are recommended. A number of test methods have been developed in order to obtain data to evaluate roofing membranes against the recommended criteria. Twenty attributes that effect the performance of roof membranes under service conditions are identified and laboratory tests are described for measuring the engineering properties of the membrane that pertain to many of these attributes. A level of performance is recommended for nine of the identified performance attributes.
Author | : |
Publisher | : |
Total Pages | : 28 |
Release | : 1967-08 |
Genre | : Building materials |
ISBN | : |
Download Building Science Series Book in PDF, Epub and Kindle
Author | : United States. National Bureau of Standards |
Publisher | : |
Total Pages | : 822 |
Release | : 1970 |
Genre | : Building |
ISBN | : |
Download Building Science Series Book in PDF, Epub and Kindle