Ruili Technology
Key words:
Bioenzyme soil solidified subbase and multi-element multi-modified roller compacted cement concrete surface layer new pavement structure complete set technology is to use soil curing agent, adopt polymer compound road construction technology, build road subbase and base layer; adopt multi-element multi-modified roller compacted cement concrete surface technology, form a new type of pavement structure, widely applicable to different grades of road needs, is a technological revolution in the field of road construction in China. From September 2007 to June 2014, the Hunan Provincial Department of Science and Technology listed this complete set of technology as a major science and technology project in Hunan Province, and jointly tackled key problems with the Hunan Provincial Department of Transportation.
Key words:
Experiment on RCC Modified by Fiber Rubber Powder
Test purpose: to determine the flexural (I. e. bending tensile) strength of RCC modified by fiber crumb rubber.
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Screening of Soil Diameter Particles
Determine the percentage of particles or grain groups smaller than a certain particle size in the mass of sand in order to understand the particle size composition of the soil and serve as the basis for sand classification and geotechnical construction material selection.
Key words:
Before subgrade construction, the center line shall be restored and the cross section shall be remeasured, including field investigation and record, penetration measurement of center line and level, laying of center line piles and subgrade side piles, excavation of side ditches, and provision of construction machinery according to the volume of earth and stone and the requirements of construction period.
Key words:
Construction of biological enzyme soil solidified layer
The contents include: delimiting the construction red line range, setting up traffic blocking safety signs, and clearing the factors affecting the construction in the operation surface. Check the quality of the subgrade at the severely damaged area, and treat the subgrade that does not meet the requirements according to the specifications. Nail the middle pile and the side pile at the distance not greater than the requirements of the subgrade construction specification, lay the side line, and set the standard pile within every 0.3~0.5m outside the edge of the shoulder on both sides.
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