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dc.contributor.authorGrau, Richard H.-
dc.description.abstractAbstract: A review of two previously published reports concerning the evaluation of anchors was made to determine the feasibility of using any of the anchors tested to secure membrane surfacings. Tests reported herein were conducted to evaluate and compare the performances of various anchors driven into a lean clay subgrade. Holding strengths of the various anchors were determined in four types of soil subgrades. Performances of the anchors were compared with the performance of the guy anchor, which is a standard item. The literature review and test results indicated that the heads of the guy anchors were either broken from the reinforcing bars or bent when the anchors were driven to a depth of 24 in.; disk-type anchors were easily driven into the soil subgrade; two-legged, threaded guy, and threaded disk-type anchors were damaged when they were driven into the clay subgrade; arrowhead anchors had the greatest holding strengths; guy and arrowhead anchors developed adequate holding strengths in sand, silt, and fat and lean clay subgrades; disk-type and two-legged anchors produced adequate holding strengths in the silt, fat clay, and lean clay subgrades; anchors developed the greatest holding strengths when extracted at a 60-deg angle with the surfaces of the subgrades; anchors described in the literature review were not feasible for use in securing membrane surfacing. Based on the results of the tests reported herein, it is concluded that the disk-type anchors are satisfactory for securing membrane surfacing.en_US
dc.description.sponsorshipUnited States. Army Materiel Command.en_US
dc.relation.ispartofseriesTechnical Report;S-71-10-
dc.subjectGuy anchorsen_US
dc.subjectMembranes (Technology)en_US
dc.subjectAnchors (fasteners)en_US
dc.titleEvaluation of anchors used to secure membrane surfacingsen_US
dc.typeTechnical Reporten_US
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