Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Monitoring of Mechanical Properties, Chemistry, and Material Loss of Stone Surfaces
As part of its effort on the effects of acid rain and weathering on fabricated materials, NADAP Task Group G is preparing to begin a field program in which masonry samples are exposed at several existing stations. It is planned to correlate the data on ambient conditions with the results of periodic measurements of damage to the masonry samples, and to distinguish the effects of acid deposition by analyzing the results obtained under differing sets of environmental conditions. In support of the field program, the subject task concerns the development of methods to assess damage experienced by the masonry specimens. In particular, the work explores (1) the use of ultrasonic surface waves to measure changes in surface mechanical properties and (2) methods of evaluating spurious effects on weight change measurements. The latter subtask includes the establishment of surface chemical analysis techniques, drying parameters, and method of measuring residual moisture.
Monitoring of Mechanical Properties, Chemistry, and Material Loss of Stone Surfaces
As part of its effort on the effects of acid rain and weathering on fabricated materials, NADAP Task Group G is preparing to begin a field program in which masonry samples are exposed at several existing stations. It is planned to correlate the data on ambient conditions with the results of periodic measurements of damage to the masonry samples, and to distinguish the effects of acid deposition by analyzing the results obtained under differing sets of environmental conditions. In support of the field program, the subject task concerns the development of methods to assess damage experienced by the masonry specimens. In particular, the work explores (1) the use of ultrasonic surface waves to measure changes in surface mechanical properties and (2) methods of evaluating spurious effects on weight change measurements. The latter subtask includes the establishment of surface chemical analysis techniques, drying parameters, and method of measuring residual moisture.
Monitoring of Mechanical Properties, Chemistry, and Material Loss of Stone Surfaces
C. A. Youngdahl (Autor:in) / D. S. Kupperman (Autor:in) / K. J. Reimann (Autor:in)
1984
9 pages
Report
Keine Angabe
Englisch
Construction Equipment, Materials, & Supplies , Construction Materials, Components, & Equipment , Limestone , Marble , Acid Rain , Calcium Sulfates , Damage , Feasibility Studies , Moisture , Nondestructive Testing , Nuclear Magnetic Resonance , Surfaces , Ultrasonic Testing , Weathering , ERDA/360605 , ERDA/420500
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