Ditapis dengan
Resilient modulus variations with water content
Resilient modulus (Mr) variations with water content were carefully examined for three subgrade soils - lean clay, clayey sand, and clayey gravel. For each soil type, four Mr tests were performed at the following water contents: 2 to 3% dry of optimum, at optimum; 2 to 3% wet of optimum, and at full backpressure saturation. The backpressure-saturated samples were molded at optimum and gained u…
Resilient modulus of soils and soil-cement mixtures
Knowledge of the resilient modulus (Mr) of the sub-grade soils and materials that compose the layers of road pavements is mandatory for an efficient analysis of their structural behavior as a whole. However, laboratory determination of Mr requires employment of relatively sophisticated loading systems and data acquisition, besides demanding considerable testing time. Therefore, it is desirable …
Geotechnical characterization of a clayey soil stabilized with polypropylene …
This paper focuses on the geotechnical characterization of a clayey soil and its mixture with polypropylene fiber. The laboratory testing program was directed to: (1) analysis of the influence of fiber content and fiber length on the unconfined compression strength of a clayey soil in order to determine optimum parameters to be used in repeated-loading triaxial tests, and (ii) analysis of the…
Comparison of laboratory resilient modulus with back calculated elastic modul…
A comparison is made between resilient moduli obtained from (i) a conventional small-scale resilient modulus test, (ii) a large-scale model experiment (LSME), and (iii) an FWD in the field. the LSME is a large prototype-scale test simulating a pavement section. The FWD tests were conducted on a highway test section. All tests were conducted on a typical base course material and two granular in…
