CN102079105A - Preparation method of ecological embankment type porous concrete special for plant growing - Google Patents
Preparation method of ecological embankment type porous concrete special for plant growing Download PDFInfo
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- CN102079105A CN102079105A CN 201010543032 CN201010543032A CN102079105A CN 102079105 A CN102079105 A CN 102079105A CN 201010543032 CN201010543032 CN 201010543032 CN 201010543032 A CN201010543032 A CN 201010543032A CN 102079105 A CN102079105 A CN 102079105A
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Abstract
The invention discloses a preparation method of ecological embankment type porous concrete special for plant growing. The preparation method comprises the following steps of: adding premixing water into crushed stones and stirring to ensure that the surfaces of the crushed stones are moistened; adding cement and mineral waste residues or fly ash, and stirring the mixture for 15 to 45 seconds to ensure that a layer of cement grout shell is wrapped on the surfaces of the crushed stones; adding remaining mixing water for stirring, and continuously stirring the mixture for 1 to 10 minutes to obtain a mixed material, wherein the ratio of the water to the cement to the crushed stones is (0.29-0.39):1:(4-7), the used amount of the mineral waste residues or the fly ash is 10 to 30 percent of that of the weight of the cement; performing layer-by-layer pressing and gentle oscillation for moulding; and finally, covering the mixture by using a plastic film, and maintaining the mixture under a natural condition to obtain the ecological embankment type porous concrete. The materials adopted by the method are common, have wide sources and are simple in manufacturing; and the prepared porous concrete has high strength and high porosity, can be made into any shape as required, and can be applied to vegetation slope protections of roads and rivers as a base material for vegetation growth.
Description
Technical field
The present invention relates to water conservancy, environment and restoration of the ecosystem engineering field, specifically is a kind of preparation method who plants living ecological revetment type celluar concrete that is exclusively used in, and is applicable to protection and greening River Embankment, rivers and lakes levee slope.
Background technology
Greening people's living environment more and more is subject to people's attention, and after particularly xoncrete structure became the leading structure of urban construction, for afforesting urban environment better, concrete structure had become a frontier of environmental greening technology.
In recent years, the most noticeable concrete technology is being applied, Here it is a kind of concrete for plant growth that structurally can help plant growth.Concrete for plant growth was at first succeeded in developing by Japanese Taisei technical research place in 1993, obtained application more and more widely at present at aspects such as river course slope protection and view reparations.Concrete for plant growth is to be skeleton with the celluar concrete, transforms, pours into steps such as suitable green material, plant seeding and later stage maintenance by concrete internal pore alkalescence and make.
When concrete for plant growth is applied in channel revetment, safe revetment and beautification of landscape are combined, reproduce the water environment that constitutes jointly by water, grass; Also can reduce revetment material surface temperature and increase revetment material surface water-permeable and air permeable, reduce tropical island effect and improve damp and hot exchange capacity.Concrete for plant growth is a kind of ecology typed bank revetment material, has the full flood passage in Jian, purification of water quality, ecological recovery and beautification of landscape in the effect of one.
And an important assurance that will make concrete for plant growth performance greening function is to make celluar concrete possess a large amount of stable interconnected pores.At present, celluar concrete has had widely in American-European, Japan to be used, and China only uses to some extent in northern minority place.Trace it to its cause, in preparation method's also not unification at present, system, the rational standard of China's celluar concrete.Existing manufacturing technology often causes slurry dirty easily, can not form uniform hole and the bottom hole is shut.Simultaneously, the celluar concrete of being done is inner because alkalescence is too high, can not satisfy the requirement of plant growth.In addition, the geographical restriction of plant, raw material consumption calculation of complex, inaccurate, complex manufacturing process is loaded down with trivial details also is to hinder the major reason that celluar concrete is applied.Therefore, the solution of the problems referred to above will bring huge ecology, economic and social benefit.
Summary of the invention
The objective of the invention is weak point, a kind of preparation method who plants living ecological revetment type celluar concrete that is exclusively used in is provided at existing celluar concrete preparation method.Adopt novel " secondary cement is made the shell method " to stir, and the layering compression moulding of gently vibrating, cover natural curing by plastic sheeting then and make.This celluar concrete has to be suitable for planting gives birth to required suitable porosity, coefficient of permeability, low basicity and high compression strength.
Realize that the used technical scheme of purpose of the present invention is:
A kind of preparation method who plants living ecological revetment type celluar concrete that is exclusively used in may further comprise the steps:
(1) in rubble, adds the stirring of premixing water and make the rubble surface wettability, add cement and slag or flyash then, above-mentioned mixed material is continued to stir 15-45s, make the rubble surface superscribe one deck cement mortar shell, add remaining mixing water at last and stir, rubble surface water mud shell thickening is become evenly, continue to stir 1～10min, obtain mix, i.e. " secondary cement is made the shell method "; By weight ratio, described water: cement: rubble=(0.29～0.39): 1: (4～7), the consumption of slag or flyash are 10%～30% of cement weight;
(2) mix is divided be poured on the mould for three times, obtain the celluar concrete of moulding.
(3) celluar concrete is carried out maintenance, promptly make to be exclusively used in and plant living ecological revetment type celluar concrete.
Above-mentioned preparation method by weight ratio, water: cement: rubble=(0.33～0.37): 1: (4～6), the consumption of slag are 8%～20% of cement weight.
Above-mentioned preparation method by weight ratio, water: cement: rubble=(0.32～0.39): 1: (4～6), the consumption of flyash are 15%～30% of cement weight.
When containing slag in the mixed material in above-mentioned preparation method's step (1), also add water reducer in this compound, by weight ratio, water: cement: rubble=(0.29～0.33): 1: (5～7), the slag consumption is 10%～15% of a cement weight, and the consumption of water reducer is 0.8%～1.2% of a cement weight.
The particle diameter of described rubble for all comprise 10～20mm or all comprise 20～30 or comprise particle diameter 10～20mm account for 30%, particle diameter 20～30mm accounts for 70%.
Described water reducer be naphthalene be in efficient retarding and water reducing agent or the polycarboxylic acid series high efficiency water reducing agent any.
Described slag is levigate II level slag.
Described flyash is II level flyash.
Premixing water described in above-mentioned preparation method's step (1) is 5%～15% of total water amount weight.
Described maintenance method is a plastic sheeting covering curing mode under the natural conditions.
Outstanding feature of the present invention is:
(1) making simple, slurry can not flow downward and stop up hole, can realize commercialization, large-scale production.
(2) compare with the like product of prior art, cement, stirring and the moulding process that can adopt label 32.5 is comparatively simple, finished product celluar concrete hole alkalescence is low, and can make arbitrary shape as required and plant advantages such as living afforestation effect is good.
(3) of the present invention is the maintenance method that plastic sheeting covers under the natural conditions, and this maintenance is simple.
The specific embodiment
Below in conjunction with specific embodiment the present invention is done further concrete detailed description the in detail, but embodiments of the present invention are not limited thereto, the technological parameter for not indicating especially can carry out with reference to routine techniques.
Embodiment 1:
Make the rubble surface wettability with adding the stirring of 6kg water among the clean rubble 1800kg, wherein ballast grain sizes is 10～20mm, then cement 360kg, slag 36kg are poured into mixer and stir 15s, make the rubble surface superscribe one deck cement mortar shell, adding 112kg water at last again stirs, rubble surface water mud shell thickening is become evenly, stir 3min, obtain mix.Adopt the layering pressing, the above-mentioned mix that makes is divided be poured on the mould for three times, each added mix is flattened compacting and gentle agitation, increase the contact point between spheroid and reduce spacing, make the institutional framework of celluar concrete more closely knit and stable.Began to water in back 1 day building, and cover plastic sheeting, build back demoulding in the 2nd day.In such a way, water the water more than 2 times every day, use the plastic sheeting maintenance for three days on end.28d is arrived in natural curing, can make to be used to plant living ecological revetment type celluar concrete.
Embodiment 2:
Make the rubble surface wettability with adding the stirring of 20kg premixing water among the clean rubble 2000kg, wherein ballast grain sizes is 20～30mm, then cement 335kg, slag 67kg are poured into mixer and stir 30s, make the rubble surface superscribe one deck cement mortar shell, adding remaining mix 115kg at last stirs, rubble surface water mud shell thickening is become evenly, stir 5min, obtain mix.Adopt the layering pressing, the above-mentioned mix that makes is divided be poured on the mould for three times, each added mix is flattened compacting and gentle agitation, increase the contact point between spheroid and reduce spacing, make the institutional framework of celluar concrete more closely knit and stable.Began to water in back 1 day building, and cover plastic sheeting, build back demoulding in the 2nd day.In such a way, water the water more than 4 times every day, used the plastic sheeting maintenance in continuous 5 days.28d is arrived in natural curing, can make to be used to plant living ecological revetment type celluar concrete.
Embodiment 3:
Make the rubble surface wettability with adding the stirring of 17kg premixing water among the clean rubble 1600kg, its medium stone is the rubble mixture of particle diameter 10～20mm (accounting for 30%) and particle diameter 20～30mm (accounting for 70%), then cement 400kg, flyash 120kg are poured into mixer and stir 45s, make the rubble surface superscribe one deck cement mortar shell, adding remaining mixing water 139kg at last stirs, rubble surface water mud shell thickening is become evenly, stir 10min, obtain mix.Adopt the layering pressing, the above-mentioned mix that makes is divided be poured on the mould for three times, each added mix is flattened compacting and gentle agitation, increase the contact point between spheroid and reduce spacing, make the institutional framework of celluar concrete more closely knit and stable.Began to water in back 1 day building, and cover plastic sheeting, build back demoulding in the 2nd day.In such a way, water the water more than 6 times every day, used the plastic sheeting maintenance in continuous 7 days.28d is arrived in natural curing, can make to be used to plant living ecological revetment type celluar concrete.
Embodiment 4:
Make the rubble surface wettability with adding the stirring of 5kg premixing water among the clean rubble 1600kg, its medium stone is the rubble mixture of particle diameter 10～20mm (accounting for 30%) and particle diameter 20～30mm (accounting for 70%), be efficient retarding and water reducing agent 3kg with cement 320kg, slag 32kg, naphthalene then, pour mixer into and stir 30s, make the rubble surface superscribe one deck cement mortar shell, add remaining mixing water 88kg at last and stir, rubble surface water mud shell thickening is become evenly, stir 3min, obtain mix.Adopt the layering pressing, the above-mentioned mix that makes is divided be poured on the mould for three times, each added mix is flattened compacting and gentle agitation, increase the contact point between spheroid and reduce spacing, make the institutional framework of celluar concrete more closely knit and stable.Began to water in back 1 day building, and cover plastic sheeting, build back demoulding in the 2nd day.In such a way, water the water more than 2 times every day, use the plastic sheeting maintenance for three days on end.28d is arrived in natural curing, can make to be used to plant living ecological revetment type celluar concrete.
Behind the vegetation form cellular concrete maintenance 28d according to making of the present invention, the main performance that tests out them is as shown in table 1:
Table 1 vegetation form cellular concrete performance
The various embodiments described above results of property shows, adopts patent of the present invention successfully to prepare and meets the ecological revetment type celluar concrete of planting living requirement.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. one kind is exclusively used in the preparation method who plants living ecological revetment type celluar concrete, it is characterized in that, may further comprise the steps:
(1) in rubble, adds the water stirring for the first time and make the rubble surface wettability, add cement and slag or flyash then, above-mentioned mixed material is continued to stir 15～45s, make the rubble surface superscribe one deck cement mortar shell, adding for the second time water then stirs, rubble surface water mud shell thickening is become evenly, continue to stir 1～10min, obtain mix; By weight ratio, described total water amount: cement: rubble=(0.29～0.39): 1: (4～7), the consumption of slag or flyash are 8%～30% of cement weight;
(2) mix is divided be poured on the mould for three times, obtain the celluar concrete of moulding;
(3) celluar concrete is carried out maintenance, promptly make to be exclusively used in and plant living ecological revetment type celluar concrete.
2. method according to claim 1 is characterized in that, by weight ratio, total water amount: cement: rubble=(0.33～0.37): 1: (4～6), the consumption of slag are 8%～20% of cement weight.
3. method according to claim 1 is characterized in that, by weight ratio, total water amount: cement: rubble=(0.32～0.39): 1: (4～6), the consumption of flyash are 15%～30% of cement weight.
4. method according to claim 1, it is characterized in that, when containing slag in the mixed material in the step (1), also add water reducer in this compound, by weight ratio, total water amount: cement: rubble=(0.29～0.33): 1: (5～7), slag consumption are 10%～15% of cement weight, and the consumption of water reducer is 0.8%～1.2% of a cement weight.
5. according to claim 1 or 2 or 3 or 4 described methods, it is characterized in that the particle diameter of described rubble is that 10～20mm or 20～30mm or 10～20mm account for 30%, 20～30mm and account for 70%.
6. method according to claim 4 is characterized in that, described water reducer be naphthalene be in efficient retarding and water reducing agent and the polycarboxylic acid series high efficiency water reducing agent any.
7. according to claim 1 or 2 or 4 described methods, it is characterized in that described slag is levigate II level slag.
8. method according to claim 3 is characterized in that, described flyash is II level flyash.
9. method according to claim 1 is characterized in that, the first time described in the step (1), amount of water was 5%～15% of a total water amount weight.
10. method according to claim 1 is characterized in that, the maintenance method described in the step (3) is a plastic sheeting covering curing mode under the natural conditions.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102630517A (en) * | 2012-04-24 | 2012-08-15 | 任小伟 | Concrete water storage and retention type vegetation base material and preparation method thereof |
| CN103936355A (en) * | 2014-04-17 | 2014-07-23 | 山东大学 | Underwater dispersion-resistant porous concrete with large particle size and preparation method thereof |
| CN105603849A (en) * | 2015-12-18 | 2016-05-25 | 南通科达建材股份有限公司 | Pervious concrete precast component for road |
| CN106278021A (en) * | 2016-07-29 | 2017-01-04 | 兰州理工大学 | Lightweight aggregate non-fine concrete and preparation method thereof |
| CN107021778A (en) * | 2017-02-17 | 2017-08-08 | 三川德青科技有限公司 | A kind of plant growth pervious concrete system for realizing reuse of dredging disposal and preparation method thereof |
| CN107572952A (en) * | 2017-08-30 | 2018-01-12 | 河北建筑工程学院 | A kind of plant-growing type eco-concrete and its preparation and application |
| CN107698213A (en) * | 2017-09-20 | 2018-02-16 | 广州大学 | Restoring vegetation concrete component and its preparation method and application |
| CN114988794A (en) * | 2022-05-23 | 2022-09-02 | 长江水利委员会长江科学院 | High-strength ecological concrete for river and lake ecological bank protection and test block preparation method |
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| CN101456711A (en) * | 2008-09-28 | 2009-06-17 | 马鞍山钢铁股份有限公司 | Steel slag plant-growing concrete and preparation method thereof |
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| CN101538135A (en) * | 2008-03-19 | 2009-09-23 | 深圳市海川实业股份有限公司 | Vegetation form cellular concrete and method for preparing same |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102630517A (en) * | 2012-04-24 | 2012-08-15 | 任小伟 | Concrete water storage and retention type vegetation base material and preparation method thereof |
| CN103936355A (en) * | 2014-04-17 | 2014-07-23 | 山东大学 | Underwater dispersion-resistant porous concrete with large particle size and preparation method thereof |
| CN103936355B (en) * | 2014-04-17 | 2015-11-04 | 山东大学 | Anti-dispersion Large stone cellular concrete and preparation method thereof under water |
| CN105603849A (en) * | 2015-12-18 | 2016-05-25 | 南通科达建材股份有限公司 | Pervious concrete precast component for road |
| CN106278021A (en) * | 2016-07-29 | 2017-01-04 | 兰州理工大学 | Lightweight aggregate non-fine concrete and preparation method thereof |
| CN107021778A (en) * | 2017-02-17 | 2017-08-08 | 三川德青科技有限公司 | A kind of plant growth pervious concrete system for realizing reuse of dredging disposal and preparation method thereof |
| CN107021778B (en) * | 2017-02-17 | 2020-09-15 | 三川德青科技有限公司 | Plant-growing pervious concrete system for realizing sludge recycling treatment and preparation method thereof |
| CN107572952A (en) * | 2017-08-30 | 2018-01-12 | 河北建筑工程学院 | A kind of plant-growing type eco-concrete and its preparation and application |
| CN107698213A (en) * | 2017-09-20 | 2018-02-16 | 广州大学 | Restoring vegetation concrete component and its preparation method and application |
| CN114988794A (en) * | 2022-05-23 | 2022-09-02 | 长江水利委员会长江科学院 | High-strength ecological concrete for river and lake ecological bank protection and test block preparation method |
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Application publication date: 20110601 |