A Preliminary Investigation to Determine the Feasibility of Compacting Fine-grained Soils Using the Gyratory Testing Machine PDF Download

Author: Rupert Graham Tart
Publisher:
ISBN:
Category : Soil stabilization
Languages : en
Pages : 178

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Book Description

Author: John L. McRae
Publisher:
ISBN:
Category : Compacting
Languages : en
Pages : 102

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Book Description

Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 170

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Book Description

Author: Wendell Wilkie Parker
Publisher:
ISBN:
Category : Soil stabilization
Languages : en
Pages : 672

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Book Description

Author: William B. Fenwick
Publisher:
ISBN:
Category : Compacting
Languages : en
Pages : 62

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Book Description

Author: William B. Abbott
Publisher:
ISBN:
Category : Clay
Languages : en
Pages : 66

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Book Description

Author: B. Sharma
Publisher:
ISBN:
Category : Compacting
Languages : en
Pages : 8

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Book Description
Engineering projects such as roads, earthen dams, embankments, and trench backfills require soil compacted at higher dry unit weight. In a majority of geotechnical projects, compaction of soils is involved with increasing strength and decreasing compressibility and permeability. The Proctor compaction test forms one of the most popular and important tests in geotechnical engineering practice. The moisture content-dry unit weight relationship of the soil obtained from the standard Proctor test forms the basis for specification and field compaction control. Standard Proctor test, also known as the dynamic compaction test requires considerable time and effort and has few imperfections. This study examined the possibility of determining the equivalent static pressure to the standard Proctor test to obtain the optimum moisture content, OMC, and maximum dry unit weight, of fine-grained soils. For this, a static compaction pressure test was devised in the Proctor mold itself to statically compact the soil at different water contents. The equivalent static pressure so determined will simplify the compaction procedure and will also result in considerable saving of time, money, and effort, especially so when dealing with highway and earth embankment projects.

Author: Waterways Experiment Station (U.S.)
Publisher:
ISBN:
Category : Compacting
Languages : en
Pages : 130

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Book Description

Author: Waterways Experiment Station (U.S.)
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 28

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Book Description

Author: William N. Brabston
Publisher:
ISBN:
Category : Compacting
Languages : en
Pages : 94

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Book Description
Objectives of this field study were to investigate means of compacting soils at near-zero water content. Two 125-ft-long test sections were constructed, each consisting of five test items 25 ft long with a 5-ft-deep test bed. In each test section, the first item consisted of 1.5 ft of crushed limestone (GW) over 3.5 ft of bomb-crater debris. The remaining four items consisted of 5 ft of silty clay (ML0, river sand (CL-ML), gravelly sand (SP), and sand tailings (SP), respectively. One test section was compacted with a single drum self-propelled vibratory roller and the other with a towed four-sided impact single drum sel-propelled vibratory roller and the other with a towed four-sided impact roller. Test results were not fully conclusive because of the difficulty in drying soils with fines, rotational slippage of the impact roller during testing, and precompaction of the soils in the vibratory roller test section during construction. However, it could be concluded that (a) compaction at low water content was feasible primarily with soils with few fines, (b) significant difficulty would be experienced in field-drying soils with high fines content, (c) both compactors generally gave acceptable results, but the rate of compaction of the impact roller was much higher than that of the vibratory roller, and (d) test results warranted further investigation of compaction with the impact roller.