Title: STRESS-DEFORMATION PREDICTION IN CEMENT-TREATED SOIL PAVEMENTS
Abstract: THE APPLICABILITY OF ELASTIC-LAYER THEORY AND THE FINITE-ELEMENT METHOD FOR THE PREDICTION OF STRESSES AND DEFLECTIONS IN CEMENT-STABILIZED SOIL PAVEMENTS UNDER REPEATED PLATE LOADS HAS BEEN FOUND TO BE GOOD. TWO PAVEMENT TEST SECTIONS, EACH 8-IN. THICK AND 20 BY 20 FT. IN PLAN WERE CONSTRUCTED BY USING A CEMENT-TREATED SILTY CLAY OVERLYING A CLAY SUBGRADE. PAVEMENT 1 CONTAINED 3 PERCENT CEMENT, AND PAVEMENT 2 CONTAINED 6 PERCENT CEMENT. INSTRUMENTATION WAS DEVELOPED AND INSTALLED IN THE PAVEMENT THAT ALLOWED MEASUREMENT OF VERTICAL DEFLECTIONS BOTH AT THE PAVEMENT SURFACE AND NEAR THE BOTTOM OF THE STABILIZED LAYER, COMPRESSIVE STRESS AT THE TOP OF THE SUBGRADE, AND RADIAL STRAIN AT THE BOTTOM OF THE STABILIZED LAYER. CHARACTERIZATION OF MATERIAL PROPERTIES FOR USE IN ANALYSIS WAS DONE BY USING THE RESULTS OF STRENGTH AND REPEATED LOAD COMPRESSION AND FLEXURE TESTS ON UNDISTURBED SAMPLES TAKEN FROM THE TEST SECTIONS. BECAUSE THE RESULTS OF THIS INVESTIGATION DEMONSTRATE THAT STRESSES AND STRAINS IN CEMENT-STABILIZED SOIL PAVEMENTS CAN BE PREDICTED SUCCESSFULLY BY USING EXISTING THEORY, A BASIS FOR PAVEMENT THICKNESS DESIGN MAY BE POSSIBLE THAT LIMITS CRITICAL STRESSES AND STRAINS WITHIN THE PAVEMENT AND SUBGRADE TO ACCEPTABLE VALUES. /AUTHOR/
Publication Year: 1971
Publication Date: 1971-01-01
Language: en
Type: article
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Cited By Count: 1
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