Manufacturing method for waste soil and expanded polystyrene particle mixed light embankment filler

A production method and technology of lightweight fillers, which are applied in the direction of roads, roads, solid waste management, etc., can solve the problems of road cracking and instability, and achieve the advantages of saving soil resources, simple and convenient construction technology, obvious economic and social benefits. Effect

Inactive Publication Date: 2016-11-23
SOUTHEAST UNIV
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Problems solved by technology

At present, there is a heat wave of expressway widening construction in China. The technical difficulties encountered in the embankment widening project may be more difficult than the new expressway construction, because ...

Method used

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Embodiment Construction

[0017] The specific operation is as follows:

[0018] a. Determine the particle gradation curve of the waste soil.

[0019] b, prepare different waste soil: EPS volume ratios, such as waste soil: EPS volume ratio=4: 6, 5: 5, 6: 4, 7: 3; the particle diameter of EPS particles is 2-3mm, and the density is 12-13kg / m 3 Then add different proportions of curing agent (usually cement), the amount of curing agent added is 4% to 10% of the weight of the waste soil, and the compaction test is carried out after mixing with an appropriate amount of water, so as to obtain different proportions Maximum dry density and optimum moisture content of mixed lightweight materials.

[0020] c. Prepare samples according to the corresponding optimal water content and maximum dry density in step b, and measure the unconfined compressive strength for 7 days and 28 days of curing.

[0021] d. According to the strength and density requirements of the embankment filler design, determine the proportion...

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Abstract

The invention provides a manufacturing method for waste soil and EPS particle mixed light embankment filler. The manufacturing method is an effective method for reducing the embankment load, saving expressway construction use soil and reducing soft soil foundation treatment. The method includes the steps that a, a particle grading curve of waste soil is measured; b, the maximum dry density and the optimum moisture content of waste soil and EPS particle mixed light filler prepared in different ways are determined; c, the unconfined compression intensity of the waste soil and EPS particle mixed light filler prepared in different ways is determined; d, according to the intensity and density requirements of the embankment filler design, the ratios of corresponding mixed light materials are determined; e, a lime-fly ash stabilized aggregate mixing plant is transformed, an EPS particle feeding bin is additionally arranged, corresponding computer control programs are revised, and the weight of the waste soil, the weight of cement, the weight of water feedstock and the feeding volume of EPS particles are controlled; f, in order to guarantee the mixing evenness of the waste soil and EPS particle mixed light filler, a proper quantity of a thickening agent is added; and g, the density, the compressive strength and the curing agent doping amount are tested and checked.

Description

technical field [0001] The invention relates to a manufacturing method of waste soil expanded polystyrene (EPS) particles mixed with lightweight embankment filler, which can not only save land, but also reduce the load of the embankment, thereby reducing the cost of foundation reinforcement treatment of expressway engineering. Utilizing this technology can better protect cultivated land, save engineering investment and have good sustainable development characteristics. Background technique [0002] In the construction of expressways, a large amount of clay is used as embankment filling materials. According to statistics, more than 6,000 mu of soil is used for every 100 kilometers of expressway construction. In the economically developed eastern region, land resources are very scarce. This extensive construction model is undoubtedly necessary. Subject to certain restrictions. In addition, due to the relatively large load of the embankment itself, the use of clay embankment m...

Claims

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Application Information

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IPC IPC(8): E01C3/04C04B28/00C04B18/04C04B16/08
CPCY02W30/91E01C3/04C04B28/00C04B18/04C04B16/08C04B24/2652
Inventor 缪林昌陈艺南王非
Owner SOUTHEAST UNIV
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