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Author
Yancey, C. W. C.
Title
Hollow Clay Tile Prism Tests for Martin Marietta Energy Systems: Task 2 Testing.
Coporate
National Institute of Standards and Technology, Gaithersburg, MD
Report
NISTIR 5328, November 1993, 318 p.
Distribution
Available from National Technical Information Service
Keywords
hollow clay tile units | compressive strength | compression testing | modulus of elasticity | masonry prisms
Abstract
Forty-one Hollow Clay Tile prisms were tested in monotonic, uniaxial compression to failure as the second task in a two-task prism test program for the Department of Energy (DOE). Twenty prisms were nominally 330 nm (13 in) thick and twenty-one were nominally 200 nm (8 in) thick. Twenty-one prisms were tested with the compressive load applied normal to the axis of the hollow cores and the other twenty were subjected to compressive load acting parallel to the axis of the cores. The objectives of the Task 2 test series were to: 1) obtain the compressive strength, 2) determine the modulus of elasticity in compression, 3) determine Poisson's ratio for the prisms, 4) study and understand the behavior of this type of masonry prism, 5) determine whether workmanship during construction of the prisms significantly affects the strength and 6) compare the results of using load control versus displacement control while loading the prisms. Test results are presented in tabular form to report the gross and net area compressive strengths, and Secant Modulus of Elasticity on the gross and net areas. Load-displacement plots are presented to graphically report the output from vertical and horizontal Linear Variable Differential Transformers attached to the prism faces.