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Cast-in-situ invert filter type pervious ecological concrete and method for constructing slope protection thereof

An ecological concrete and cast-in-place technology, applied in the field of ecological concrete, can solve the problems of difficult control of porosity, poor slope protection planting function, low concrete strength, etc., and achieve the effects of improving compressive strength, simplifying construction technology, and reducing construction costs

Inactive Publication Date: 2009-07-22
JCK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of cast-in-place reverse filter type permeable ecological concrete, and its construction method for concrete slope protection applied to slope protection, which can solve the technology that ecological concrete is difficult to carry out on-site pouring construction in existing ecological concrete and application technology problems, as well as the problem of poor planting function in slope protection, and overcome the shortcomings of poor filter effect, low concrete strength and difficult control of porosity that usually exist in permeable concrete and slope protection

Method used

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  • Cast-in-situ invert filter type pervious ecological concrete and method for constructing slope protection thereof
  • Cast-in-situ invert filter type pervious ecological concrete and method for constructing slope protection thereof
  • Cast-in-situ invert filter type pervious ecological concrete and method for constructing slope protection thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1 Reverse filter type permeable ecological concrete for slope protection

[0051] The particle size distribution of the selected coarse and fine aggregates in Example 1 (reverse filter type permeable ecological concrete for slope protection) is shown in Table 3. The coarse aggregate used is GB / T14685-2001 Class I coarse aggregate, its nominal particle size ranges from 5 to 10mm, the minimum particle size is 2.36mm, and the maximum particle size is 16.0mm.

[0052] Table 3 Particle size distribution of selected coarse and fine aggregates

[0053]

[0054] According to the reverse filter type permeable ecological concrete of the present invention, the standard formula table of each component of embodiment 1 is as shown in table 4.

[0055] Table 4 Standard formulation of filter-type permeable ecological concrete for slope protection

[0056]

[0057] According to the above table, the performance index (measured value) of the reverse filter type permeable e...

Embodiment 2

[0060] Example 2 Reverse filter type permeable ecological concrete for slope protection

[0061] The particle size distribution of the coarse and fine aggregates selected in Example 2 (reverse filter type permeable ecological concrete for slope protection) is shown in Table 6. The coarse aggregate used is the second type of coarse aggregate in GB / T14685-2001, that is, the nominal particle size ranges from 5 to 16.5mm, the minimum particle size is 2.36mm, and the maximum particle size is 19.0mm.

[0062] Table 6 Particle size distribution of selected coarse and fine aggregates

[0063]

[0064]

[0065] According to the anti-filtration type permeable ecological concrete of the present invention, the standard formula of the slope protection anti-filtration type permeable ecological concrete prepared by using the coarse and fine aggregates in the above table is shown in Table 7.

[0066] Table 7 Standard formula table of reverse filter permeable ecological concrete for slo...

Embodiment 3

[0071] Example 3 Reverse filter type permeable and vegetative ecological concrete for slope protection

[0072] The particle size distribution of the coarse and fine aggregates selected in Example 3 (reverse filter type permeable and plant-growing ecological concrete for slope protection) is shown in Table 9. The coarse aggregate used is the third type of coarse aggregate in GB / T14685-2001, that is, the nominal particle size ranges from 5 to 20mm, the minimum particle size is 2.36mm, and the maximum particle size is 26.5mm.

[0073] The anti-filter type permeable ecological concrete in this embodiment has a certain vegetation function, so coarse aggregate with a relatively large particle size is selected to expand the aperture of the continuous gap in the anti-filter type permeable ecological concrete so that the roots of the plants can penetrate into the concrete. .

[0074] Table 9 Particle size distribution of selected coarse and fine aggregates

[0075]

[0076]

[0...

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Abstract

The invention discloses cast-in-situ reversed filtering type non-watertight eco-concrete and a construction method for a revetment thereof. The eco-concrete is the composition of grain aggregates and a cement hydrate; the grain aggregates comprise coarse aggregates and thin aggregates, which account for 70 to 85 percent of the total weight of the composition; the cement hydrate is the mixture of Portland cement, water and additive; the doping amount of the cement and the water accounts for 14.5 to 29.5 percent of the total weight of the composition; the additive comprises calcium salt, silicon powder, functional inorganic salt as well as lignosulphonate question mark hydroxycarboxylic acid; and the doping amount of the additive accounts for 0.1 to 0.5 percent of the total weight of the composition. The eco-concrete of the invention can realize cast-in-situ construct, and has higher anti-pressing intensity; moreover, the poriness size and the aperture distribution range can be designed and the controllability is good; the cast-in-situ reversed filtering type non-watertight eco-concrete applied to the fields of revetment protecting and controlling can improve the anti-pressing intensity, the permeable performance and the reversed filtering performance of the concrete revetment and simultaneously has the function of greening vegetation.

Description

technical field [0001] The invention relates to an ecological concrete and an application thereof, in particular to a cast-in-place reverse filter ecological concrete and a construction method for concrete slope protection applied to slope protection of reservoirs, river dams, mountains and roads. Background technique [0002] The protection and management of slopes (reservoirs, river embankments, mountains and road slopes, etc.) and the research and development of related new technologies have attracted more and more attention. The traditional slope treatment methods mainly include pouring concrete on site, laying stones or slabs on the filter layer, masonry stones, anchoring of reinforced concrete prestressed frame beams, concrete fences, metal plastic mesh, accumulation of gravel, retaining walls and Anti-slide piles and other methods. These methods are not only time-consuming and labor-intensive but also have a single function, and usually do not have the functions of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B22/08C04B24/18
CPCC04B28/04C04B2111/00241
Inventor 吴智仁杨才千吴智深
Owner JCK
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