CN100415079C - Vegetation ecological concrete precast block and preparation method thereof - Google Patents

Vegetation ecological concrete precast block and preparation method thereof Download PDF

Info

Publication number
CN100415079C
CN100415079C CNB2005100301334A CN200510030133A CN100415079C CN 100415079 C CN100415079 C CN 100415079C CN B2005100301334 A CNB2005100301334 A CN B2005100301334A CN 200510030133 A CN200510030133 A CN 200510030133A CN 100415079 C CN100415079 C CN 100415079C
Authority
CN
China
Prior art keywords
layer
culture medium
grass
vegetation
precast block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2005100301334A
Other languages
Chinese (zh)
Other versions
CN1768569A (en
Inventor
何池全
钱光人
智光源
李琳琳
董世祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Shanghai for Science and Technology
Original Assignee
University of Shanghai for Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CNB2005100301334A priority Critical patent/CN100415079C/en
Publication of CN1768569A publication Critical patent/CN1768569A/en
Application granted granted Critical
Publication of CN100415079C publication Critical patent/CN100415079C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cultivation Of Plants (AREA)

Abstract

The present invention relates to a vegetation ecological concrete precast block and a preparation method thereof. The vegetation concrete precast block of the present invention is composed of a top cultivation basal layer, an upper layer porous concrete layer, a middle layer waste masonry culture medium mixing layer and a lower layer porous concrete layer which are formed into a four-layer structure, wherein the top cultivation basal layer is suitable for vegetation growth, the upper layer porous concrete layer is suitable for the penetration of vegetation root systems, the middle layer waste masonry culture medium mixing layer is suitable for the growth of the vegetation root systems, and the lower layer porous concrete layer is suitable for the penetration of the vegetation root systems. The present invention has the preparation steps that two layers of upper and lower porous concrete layers with the same size are prepared firstly, the lower porous concrete layer is laid with the culture medium, the middle layer culture medium is covered with the prepared upper porous concrete layer, the peripheric wall is sealed with smooth cement, the curing is carried out by three to four days, and the precast block is covered with the top culture basal layer. The precast block is laid and arranged on a bank, the top is provided with grass after about 14 to 20 days, grass roots penetrate through the upper layer, the middle layer and the lower layer to enter the outer soil, and the grass plays the functions of greening and conservation of both moisture and soil. The present invention has the advantage of convenient laying and can be carried out with the production of industrialization.

Description

Vegetation ecological concrete precast block and preparation method thereof
Technical field
The present invention relates to a kind of eco-concrete, particularly a kind of plant ecological concrete precast block and preparation method thereof.
Background technology
Research aspect eco-concrete, more Zao abroad than domestic starting, as Japan, Holland etc.Particularly Japanese, level in this respect is in a leading position.Before 10 years, Japan carries out the research of eco-concrete and has put into practice work with regard to beginning.Particularly recent years, the protection of environment and personal safety have caused more widely notices that the utilization of eco-concrete technology becomes emphasis.The greening technique of eco-concrete mainly contains three aspects: (1) aspect, metope; (2) road special space; (3) concrete is directly afforested.
The eco-concrete technology is protected beautifying of domatic greening and surrounding environment in greening, the greening of both sides of highway bank protection face, rivers and creeks that Japan has been used for Urban House.The greening aspect is the new stage of the roofing technique development nineties, both can beautify roofing, can play the effect of heat-insulation and heat-preservation again.
The research start-stop of China aspect eco-concrete is later, but fast-growth.By " research of environment-friendly type green concrete " present ministerial level evaluation of having passed through Ministry of Water Resources's international cooperation and science and technology department tissue that Shuili Industry Co, Jilin Prov and Jishui, Jilin Province engineering material research institute finish, this achievement has reached international most advanced level.
In addition, advance storehouse highway rock slope, Jiangsu Hua Shan stone in the high steep rock slope of Three Gorges Projects, the Qingjian River every He Yan hydroelectric power plant concrete high slope, the high steep concrete side slope of the Lingshan, Wuxi giant Buddha, beach power plant of Huanglong concrete side slope, Tai'an water-storage and delay in more than 20 engineering such as massif ecological recovery, all used the eco-concrete technology.
Japan just made practice aspect ecological slope protection structure before 10 years, current, and Japan uses afforestation always as ecomaterial in soft rock slope ecological bank protection.China starts to walk evening in this regard, in April, 2002, " environment-friendly type green concrete research and use " project of being finished by Shuili Industry Co, Jilin Prov and Jishui, Jilin Province engineering material research institute has been passed through the ministerial level of sharp water portion and has been identified, in addition, the green ecological cement of developing by SanXia University, the method of stake spraying is struck in employing, has also obtained consistent favorable comment.
Above-mentioned eco-concrete is directly construction formation on quilt greening face all, lays inconvenience, can not carry out industrialization production.
Summary of the invention
The object of the present invention is to provide a kind of vegetation ecological concrete precast block and preparation method thereof, for greening environment provides the greening prefabricated section of shaping piece, be used for laying by greening face, it is convenient to lay, and can form industrialization production.
For achieving the above object, the present invention adopts following technical proposals:
A kind of vegetation ecological concrete precast block, plant living base material for multilayer, it is characterized in that by the top layer culture medium layer that is suitable for vegetation growth, be suitable for upper strata celluar concrete layer that vegetation root system runs through, be suitable for the middle level culture medium layer of vegetation root system growth and be suitable for the prefabricated section that lower floor's celluar concrete layer that vegetation root system runs through constitutes four-layer structure.
The thickness that above-mentioned prefabricated section is four layers is respectively: the top layer culture medium layer is 3~8mm, and upper strata celluar concrete layer is 5~8cm, and the middle level culture medium layer is 5~15mm, and lower floor's celluar concrete layer is 5~8cm; The length and width of prefabricated section is respectively 20~30cm.
Wall has the bonding and reinforced structure layer that the cement thin layer constitutes around the above-mentioned prefabricated section, and its thickness is 2~4mm.
The raw material of above-mentioned upper and lower layer celluar concrete layer is formed as follows by weight ratio:
Aggregate 100g, cement 50~65g, slag micropowder 95~115g, water 450~500g, water reducer 45~55g; Orthopaedics is the useless masonry of building, and its fragment particle diameter is 2~5cm; Particle diameter<the 5mm of slag micropowder; Water reducer is a bitter edible plant acid formaldehyde condensation products.
The raw material of above-mentioned middle level medium is formed and weight proportion is: peat 100g, chaff 1~3g, active carbon 4~6g, additive 1~2g, perhaps peat 100g, grass are considered 20~30g, additive 2~3g to be worth doing, described additive is the mixture of dried liver moss and auximone, and the weight proportion of its dried liver moss and auximone is 5~10: 1.
On the top layer culture medium layer be to add grass seeds in the medium, its raw material is formed: 400~600 of peat 100g, chaff 1~3g, active carbon 4~6g, additive 1~2g, grass seeds, and perhaps peat 100g, grass bits 20~30g, additive 2~3g, grass seeds are 400~600; Described additive is the mixture of dried liver moss and auximone, and the weight ratio of its dried liver moss and auximone is 5~10: 1.
Above-mentioned grass seeds is the grass seeds of the high wool grass of 3A or Mei Dali X perennial ryegrass or highland grass.
A kind of preparation method who is used for above-mentioned vegetation ecological concrete precast block, it is characterized in that preparation process is as follows: 1. on identical two of preparation size, lower floor's celluar concrete layer: at first be equipped with needed raw material, prepare by following technological process: with water+additive+cement+aggregate, after concrete mixer is even, inject in the prefabricated section diaphragm capsule and compacting, the demoulding and the shape piece becomes the celluar concrete layer: 2. on lower floor's celluar concrete layer, spread the middle level medium, on the medium of middle level, cover the upper strata celluar concrete layer that has prepared, and wall is sealed up smooth cement around whole prefabricated section, to reach the effect of bonding up and down and reinforced structure; 3. maintenance: in temperature is 18~22 ℃, and relative moisture is to leave standstill 3~4 days in 80~90% the cement conservation case; 4. covering medium formation top layer culture medium layer on the prefabricated section; Prefabricated section is layed on the riverbank, and after 100 days, the top layer culture medium layer promptly grows grass on (4), and grass roots penetrates the dark soil layer of upper strata celluar concrete layer, middle level culture medium layer and lower floor's porous and enters outside soil.
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art: the present invention plants multilayer and gives birth to the greening prefabricated section of making four-layer structure substantially, is used for laying by greening face, and it is convenient to lay, and can form industrialization production.The prefabricated section of four layers of knot of the present invention, its top layer culture medium layer grows grass, grass roots runs through the useless masonry medium mixed layer of upper strata celluar concrete layer, middle level and lower floor's celluar concrete layer and enters outside soil, thereby its grass plays the greening environment effect, and root system plays and conserves water and soil, reinforces the embankment effect.Adopt the useless masonry of building as the aggregate in the raw material among the present invention, construction waste is effectively addressed and utilizes.
Description of drawings
Accompanying drawing is the prefabricated section structural representation of one embodiment of the invention.
Embodiment
Embodiment one: referring to accompanying drawing, this vegetation ecological concrete precast block is that multilayer is planted living base material, by the top layer culture medium layer 4 that is suitable for vegetation growth, be suitable for upper strata celluar concrete layer 3 that vegetation root system runs through, be suitable for the middle level culture medium layer of vegetation root system growth and be suitable for the prefabricated section that lower floor's celluar concrete layer 1 that vegetation root system runs through constitutes four-layer structure.The thickness that above-mentioned prefabricated section is four layers is respectively: top layer culture medium layer 4 is 3mm, and upper strata celluar concrete layer 3 is 5cm, and the useless brick medium mixed layer in middle level is 5mm, and lower floor's celluar concrete layer 1 is 5cm; Prefabricated length and width is respectively 20cm.Wall has the bonding and reinforced structure layer that cement thin layer 7 constitutes around the prefabricated section, and its thickness is 2mm.
The raw material of above-mentioned upper and lower layer celluar concrete layer 3,1 is formed as follows by weight ratio: aggregate 100g, cement 50g, slag micropowder 95g, water 450g, water reducer 45g; Orthopaedics is the useless masonry of building, and its fragment particle diameter is 2~5cm; Particle diameter<the 5mm of slag micropowder; Water reducer is a bitter edible plant acid formaldehyde condensation products.
The raw material of middle level medium 6 is formed and weight proportion is: peat 100g, chaff 1~3g, active carbon 4~6g, additive 1~2g, described additive is the mixture of dried liver moss and auximone, and the weight proportion of its dried liver moss and auximone is 5~10: 1.
Above-mentioned top layer culture medium layer 4 is to add grass seeds in the medium, its raw material is formed: 400~600 of peat 100g, chaff 1~3g, active carbon 4~6g, additive 1~2g, grass seeds, additive is the mixture of dried liver moss and auximone, and the weight ratio of its dried liver moss and auximone is 5~10: 1.Grass seeds is the high wool grass seeds of 3A.
The preparation method who is used for above-mentioned vegetation ecological concrete precast block, see that preparation process is as follows: 1. on identical two of preparation size, lower floor's celluar concrete layer 3,1: at first be equipped with needed raw material, prepare by following technological process: with water+additive+cement+aggregate, after concrete mixer is even, inject in the prefabricated section diaphragm capsule and compacting, the demoulding and the shape piece becomes celluar concrete layer 3,1: 2. on lower floor's celluar concrete layer 1, spread middle level medium 6, on middle level medium 6, cover the upper strata celluar concrete layer 3 that has prepared, and wall is sealed up smooth cement around whole prefabricated section, to reach the effect of bonding up and down and reinforced structure; 3. maintenance: in temperature is 18~22 ℃, and relative moisture is to leave standstill 3~4 days in 80~90% the cement conservation case; 4. covering medium formation top layer culture medium layer 4 on the prefabricated section; Prefabricated section is layed on the riverbank, after about 100 days, promptly grows grass 5 on the top layer culture medium layer 4, and grass roots penetrates the dark soil layer 1 of upper strata celluar concrete layer 3, middle level medium 6 and lower floor's porous and enters outside soil.
Embodiment two: also referring to accompanying drawing, present embodiment and the foregoing description are basic identical, institute's difference is the different of prefabricated section size and raw material proportioning, prefabricated section four layer thicknesses are respectively in the present embodiment: top layer culture medium layer 4 is 8mm, upper strata celluar concrete layer 3 is 8cm, middle level medium mixed layer 6 is 15mm, and lower floor's celluar concrete layer 1 is 8cm; Prefabricated length and width is respectively 30cm, and wall cement thin layer 7 thickness are 4mm all around.
The raw material of upper and lower layer celluar concrete layer 3,1 is formed as follows by weight ratio: aggregate 100g, cement 65g, slag micropowder 115g, water 500g, water reducer 55g.
The raw material of middle level culture medium layer 6 is formed and weight proportion is: peat 100g, grass bits 20~30g, additive 2~3g.
The raw material of top layer culture medium layer 4 is formed: peat 100g, grass are considered 400~600 of 20~30g, additive 2~3g, grass seeds to be worth doing.Grass seeds is a Mei Dali X rye grass seeds.
The preparation method of this vegetation ecological concrete precast block is identical with the preparation method of the foregoing description.

Claims (8)

1. vegetation ecological concrete precast block, plant living base material for multilayer, it is characterized in that by the top layer culture medium layer (4) that is suitable for vegetation growth, be suitable for upper strata celluar concrete layer (3) that vegetation root system runs through, be suitable for the middle level culture medium layer (6) of vegetation root system growth and be suitable for the prefabricated section of lower floor's celluar concrete layer (1) formation four-layer structure that vegetation root system runs through.
2. vegetation ecological concrete precast block according to claim 1, the thickness that it is characterized in that four layers of described prefabricated sections is respectively: top layer culture medium layer (4) is 3~8mm, upper strata celluar concrete layer (3) is 5~8cm, middle level culture medium layer (6) is 5~15mm, and lower floor's celluar concrete layer (1) is 5~8cm; The length and width of prefabricated section is respectively 20~30cm.
3. require 1 described plant ecological concrete precast block according to the root profit, it is characterized in that described prefabricated section around the wall bonding and reinforced structure layer that has cement thin layer (7) to constitute, its thickness is 2~4mm.
4. require 1 described plant ecological concrete precast block according to the root profit, the raw material that it is characterized in that described upper and lower layer celluar concrete layer (3,1) is formed as follows by weight ratio: aggregate 100g, cement 50~65g, slag micropowder 95~115g, water 450~500g, water reducer 45~55g; Aggregate is the useless masonry of building, and its fragment particle diameter is 2~5cm; Particle diameter<the 5mm of slag micropowder; Water reducer is a bitter edible plant acid formaldehyde condensation products.
5. require 1 described plant ecological concrete precast block according to the root profit, the raw material composition and the weight proportion that it is characterized in that described middle level culture medium layer (6) are: peat 100g, chaff 1~3g, active carbon 4~6g, additive 1~2g, perhaps peat 100g, grass are considered 20~30g, additive 2~3g to be worth doing, described additive is the mixture of dried liver moss and auximone, and the weight proportion of its dried liver moss and auximone is 5~10: 1.
6. require 1 described plant ecological concrete precast block according to the root profit, it is characterized in that described top layer culture medium layer (4) is to add grass seeds in the medium, its raw material is formed: 400~600 of peat 100g, chaff 1~3g, active carbon 4~6g, additive 1~2g, grass seeds, and perhaps peat 100g, grass bits 20~30g, additive 2~3g, grass seeds are 400~600; Described additive is the mixture of dried liver moss and auximone, and the weight ratio of its dried liver moss and auximone is 5~10: 1.
7. require 6 described plant ecological concrete precast blocks according to the root profit, it is characterized in that described grass seeds is the grass seeds of the high wool grass of 3A or Mei Dali X perennial ryegrass or highland grass.
8. require the preparation method of 1 described plant ecological concrete precast block according to the root profit, it is characterized in that described preparation process is as follows: 1. on identical two of preparation size, lower floor's celluar concrete layer (3,1): at first be equipped with needed raw material, prepare by following technological process: with water+additive+cement+aggregate, after concrete mixer is even, inject in the prefabricated section diaphragm capsule and compacting, the demoulding and the shape piece becomes celluar concrete layer (3,1): 2. on lower floor's celluar concrete layer (1), spread middle level medium (6), on middle level medium (6), cover the upper strata celluar concrete layer (3) that has prepared, and wall is sealed up smooth cement around whole prefabricated section, to reach the effect of bonding up and down and reinforced structure; 3. maintenance: in temperature is 18~22 ℃, and relative moisture is to leave standstill 3~4 days in 80~90% the cement conservation case; 4. covering medium formation top layer culture medium layer (4) on the prefabricated section; Prefabricated section is layed on the riverbank, after 100 days, promptly grows grass on the top layer culture medium layer (4) (5), and grass roots penetrates the dark soil layer (1) of upper strata celluar concrete layer (3), middle level medium (6) and lower floor's porous and enters outside soil.
CNB2005100301334A 2005-09-29 2005-09-29 Vegetation ecological concrete precast block and preparation method thereof Expired - Fee Related CN100415079C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100301334A CN100415079C (en) 2005-09-29 2005-09-29 Vegetation ecological concrete precast block and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100301334A CN100415079C (en) 2005-09-29 2005-09-29 Vegetation ecological concrete precast block and preparation method thereof

Publications (2)

Publication Number Publication Date
CN1768569A CN1768569A (en) 2006-05-10
CN100415079C true CN100415079C (en) 2008-09-03

Family

ID=36750321

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100301334A Expired - Fee Related CN100415079C (en) 2005-09-29 2005-09-29 Vegetation ecological concrete precast block and preparation method thereof

Country Status (1)

Country Link
CN (1) CN100415079C (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100411506C (en) * 2006-10-27 2008-08-20 南京大学 Micro ecological system unit and its use in water environment treatment
CN101538135B (en) * 2008-03-19 2012-11-14 深圳市海川实业股份有限公司 Vegetation form cellular concrete and method for preparing same
CN101313655B (en) * 2008-06-24 2011-03-23 南京大学 Concrete ecological earthen bowl, production and application method
CN101548615A (en) * 2009-05-22 2009-10-07 山东省古窖藏酒与酒文化研究发展中心 Porous nest brick 3D green plant technology
CN102060604B (en) * 2010-11-11 2013-10-30 华南理工大学 Suitable material special for plant-growing type porous concrete and filling method
CN102172127B (en) * 2010-12-11 2012-12-05 棕榈园林股份有限公司 Manufacturing method of ecological moss blankets
CN102369834B (en) * 2011-03-03 2013-05-29 袁彬鸿 Aggregate bio-substrate concrete (BSC) and preparation and construction method thereof
CN102409637B (en) * 2011-08-16 2013-06-05 中国科学院武汉植物园 Ecological restoration method of hydro-fluctuation belt
CN103141252A (en) * 2013-03-04 2013-06-12 三亚新大兴园林股份有限公司 Material for slope fixing and virescence and application thereof
CN103951512A (en) * 2014-04-29 2014-07-30 济南大学 Method of improving nutrient preserving capability of planting concrete
CN104891892A (en) * 2015-05-13 2015-09-09 河海大学 Method used for preparing simulate planting concrete from sludge
CN105625262B (en) * 2015-12-31 2017-11-14 扬州大学 A kind of gutter prefabricated ecological revetment plate and preparation method thereof
CN109137938A (en) * 2018-07-31 2019-01-04 浙江普天园林建筑发展有限公司 A kind of rock side slope ecological recovery method
CN110959423A (en) * 2018-09-26 2020-04-07 广东清大同科环保技术有限公司 Grass planting brick for roof planting and preparation method thereof
CN109287187B (en) * 2018-11-28 2021-07-27 中国科学院、水利部成都山地灾害与环境研究所 Vegetation recovery system based on satellite remote sensing image and monitoring method thereof
CN111316781B (en) * 2020-02-25 2021-06-04 农业农村部农业生态与资源保护总站 Planting method for ecological crust of vegetation degraded bare land
CN111670718A (en) * 2020-05-29 2020-09-18 广东省水利水电科学研究院 Seepage-storage type vertical greening component and construction method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1048704C (en) * 1994-10-18 2000-01-26 胡德熙 Slope-protecting vegetation concrete
CN1091021C (en) * 1999-07-09 2002-09-18 北京德元混凝土草坪绿化有限公司 Prefabricated concrete block with grass and its cultivating method and use
CN2595151Y (en) * 2002-11-25 2003-12-31 张正梁 Honeycomb-shaped concrete afforestation vegetation brick
CN1568650A (en) * 2004-04-30 2005-01-26 重庆交通科研设计院 Recipe and structure of plant growing basis material of brae protection vegetation concrete

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1048704C (en) * 1994-10-18 2000-01-26 胡德熙 Slope-protecting vegetation concrete
CN1091021C (en) * 1999-07-09 2002-09-18 北京德元混凝土草坪绿化有限公司 Prefabricated concrete block with grass and its cultivating method and use
CN2595151Y (en) * 2002-11-25 2003-12-31 张正梁 Honeycomb-shaped concrete afforestation vegetation brick
CN1568650A (en) * 2004-04-30 2005-01-26 重庆交通科研设计院 Recipe and structure of plant growing basis material of brae protection vegetation concrete

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
浅谈绿化混凝土. 毛鑫.中国水利,第19期. 2004
浅谈绿化混凝土. 毛鑫.中国水利,第19期. 2004 *
绿化混凝土在护坡工程中的应用. 毛鑫.市政技术,第22卷第6期. 2004
绿化混凝土在护坡工程中的应用. 毛鑫.市政技术,第22卷第6期. 2004 *

Also Published As

Publication number Publication date
CN1768569A (en) 2006-05-10

Similar Documents

Publication Publication Date Title
CN100415079C (en) Vegetation ecological concrete precast block and preparation method thereof
CN104264692B (en) A kind of side slope ecological renovation method
CN107963838B (en) Ecological spray anchor slope protection structure and method
CN102021897B (en) Construction method of ecological revetment
CN110521503A (en) Wet shot plant cover concrete ecological vestige
CN103362132A (en) Construction method of cast-in-site planting concrete revetment
CN106193066B (en) A kind of Loess landslide administering method based on restoration of the ecosystem
CN206784315U (en) Ecological riverway shore protection
CN102031786A (en) Greening vegetation concrete and construction method thereof
CN102926391A (en) Loess slope ecological protection method
CN107034767A (en) A kind of full pervious concrete pavement structure of regeneration aggregate and its construction method
CN106759389A (en) A kind of cast-in-place construction method of green concrete
CN102745961B (en) Mine mullock pervious concrete and preparation method thereof
CN202444757U (en) Water and salt discharging system
CN102919010A (en) TEPS (Total Ecology Protection System) for vegetation and construction method of TEPS
CN100567685C (en) Construction method for building water storage facility by using soil solidifying material
CN101548615A (en) Porous nest brick 3D green plant technology
CN102369834B (en) Aggregate bio-substrate concrete (BSC) and preparation and construction method thereof
CN105239532A (en) Ecological concrete building block similar to sponge and preparation method thereof
CN209194466U (en) A kind of Reservoir Bank leakage preventing structure
CN206784356U (en) A kind of three-dimensional cement base earthwork composite material collision mat
CN110066159A (en) A kind of purified water type greening brick and preparation method thereof applied to ecological slope protection
CN1242126C (en) Channel joint leakage prevention construction method
CN114319395A (en) Ecological bag modified expansive soil flexible ecological slope protection structure and construction method
CN104120642B (en) A kind of method greening structure soil being used as rainwater accumulator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080903

Termination date: 20110929