CN105503042A - Clay-based anti-seepage material used for rainwater collection in desertification region and preparing and using method thereof - Google Patents
Clay-based anti-seepage material used for rainwater collection in desertification region and preparing and using method thereof Download PDFInfo
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- CN105503042A CN105503042A CN201510948645.2A CN201510948645A CN105503042A CN 105503042 A CN105503042 A CN 105503042A CN 201510948645 A CN201510948645 A CN 201510948645A CN 105503042 A CN105503042 A CN 105503042A
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- clay
- rainwater
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/28—Polysaccharides or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a clay-based anti-seepage material which is low in cost, nontoxic and good in performance. The preparing method includes the steps that pure natural clay is smashed, natural gum and water are added, and the mixture is stirred uniformly, then soaked for 20-25 h and then stirred and mixed for 3-5 h in a vacuum pug mill to obtain the clay-based anti-seepage material. The clay-based anti-seepage material is detected according to the national standard GB 23440-2009, the coating seepage-resisting pressure of the prepared anti-seepage material reaches the standards that no water seeps within 1 hour at the pressure of 0.3 MPa, the water absorption is smaller than 2% within 48 h, the bonding strength (7d) is larger than or equal to 0.7 Mpa, and the number of times of qualified freezing and thawing cycle is 20, and all the performance indexes are higher than the national standard. The clay-based anti-seepage material is low in cost, simple in preparation technology, free of toxicity, and particularly suitable for collecting and using rainwater in a desertification region, and will not cause secondary pollution to water resources and ecology. The clay-based anti-seepage material has a good effect when used in the desertification region.
Description
Technical field
The present invention relates to a kind of impervious material, particularly relate to a kind of preparation of clay-based impervious material, be mainly used in the Collection and use of desertificated area rainwater.
Background technology
DESERTIFICATION IN CHINA situation is very severe, points out according to the State Administration of Forestry in 1998 material that the government departments such as office deliver that prevents and controls desertification, and China is one of serious country of desertification in the world.Show according to Deserts in China, Gobi desert and sandy land generaI investigation and desertification finding, DESERTIFICATION IN CHINA land area is 262.2 ten thousand square kilometres, account for 27.4% of area, 400000000 population lives are in desertification impact area, sandstorm takes place frequently, and the traffic of husky district, the energy, industrial and mineral, national defence space flight base, farmland, meadow suffer from hazards of sand storms.According in, beautiful, add international cooperative project research, the Chinese direct economic loss caused because of desertification is about 54,100,000,000 Renminbi.
Desertification is also a global environmental problem, and its expansion trend serious threat is to the Sustainable development of human society.Desertification control is just becoming the pioneer field of a Universal Mobile, its enforcement must be based upon scientifically evaluate desertification present situation, dynamically and on the basis of trend.Desertification Assessment the earliest, can trace back to Lamprey to Sahara Desert dynamic research.Result of study shows, 515km is moved in average annual south, Sahara Desert.Although this conclusion is subject to the criticism of many colleagues, pull open the prelude of Desertification Assessment.
In order to stop spreading of desertification, scientific research personnel and environmental worker have actively developed relevant preventing and reclamation activities.By the end of so far, the product more than 20 that China has preventing and fixing sand is planted, as: vegetable fibre sand-proof net, pinus sylvestris var. mongolica sand prevention, fix the sand new seeds, medicine polyacrylamide, pure hand and spell bamboo raft shelf etc., their popular feature is easily aging, timeliness is short, and wastes a large amount of manpower and materials when installing and using.Also have some enterprises to utilize Polymer materialspreparation sand-proof net, as HDPE sand-proof net, single with regard to Desert Control region, this product mainly contains two kinds of effects, resistance husky (preventing sand and dust from stretching), fixes the sand (preventing sand and dust from raising up).But the ageing resistance of macromolecular material sand-proof net does not still improve.Check on the spot according to us, this kind of material is just aging pulverizing in about a year in desert, and drift sand defines fibrous powder after impacting, and causes serious secondary pollution to desert.
Vegetative sand control is the effective way of preventing and treating sand damage and building the Wind-sandy Area ecological protective screen, however decline of groundwater level, vegetation degeneration and sand-fixing effect unsustainable etc. be solve the subject matter that desertification faces at present.Vegetative sand control is by planting artificial vegetation, control the harm of active sand dune and the semifixed dune main line of communication, small towns, industrial and mineral, farmland, Energy Base, national defense facility and other important engineering construction, prevent and treat grassland desertification and promote the major measure of ecological recovery.The greatest problem that vegetative sand control exists at present is plant survival and follow-up viability problems, and the key solving this problem to have suff water.Desertificated area has certain precipitation every year, but natural rainfall does not utilize well, and how the collection rainwater of high-efficiency environment friendly is a very crucial problem.And in collection rainwater, the antiseep of rainwater is a very important problem.Although have certain methods and anti-seepage material at present, there is material cost high, the problem such as poisonous.Desertification environment remediation is a very huge engineering, very strict to the cost requirement of material therefor; In addition, as the pouring water of plant, require use water can not be subject to the pollution of chemical substance.Therefore, research and develop low cost, the impervious material tool that nontoxic, performance is good is of great significance.
Summary of the invention
The object of the invention is some problems for existing in prior art, a kind of low cost, the clay-based impervious material that nontoxic, performance is good and preparation method thereof are provided
Another object of the present invention is to provide a kind of in desertificated area use impervious material ground method.
The present invention is used for the preparation of the clay-based impervious material of rainwater-collecting, that pure natural clay was pulverized, add natural gum and water, after stirring, within 20 ~ 25 hours, (object of immersion has two, one, makes clay become more soft and smooth in immersion, they are two years old, clay is made to play the effect of sex change), in vacuum deairing machine, then stir mixing 3 ~ 5 hours, obtain earth rubber type impervious material.
Described pure natural clay adopts polygorskite (Attapulgite), and polynite, kaolin, loess, laterite, black earth, carclazyte etc., are crushed to more than 500 orders during use.
Described natural gum adopts plant secretion thing (plant secretion thing is as gum arabic, peach gum), the flooding extract (as pectin etc.) of plant, seed glue (as guar gum, angle beans bean gum etc.) or seaweed gel (as agar-agar, algin etc.).The consumption of natural gum is 2% ~ 5% of clay quality.
The consumption of water is as the criterion with the humidity of clay, is generally 80% ~ 150% of butt clay quality.
Anti-seepage material prepared by the present invention detects according to standard GB/T 23440-2009, and property indices is all better than national standard.Concrete detected result is as follows:
Coating impermeability pressure: anhydrously in 0.3MPa1h to ooze out; Water-intake rate: 48h, water-intake rate is less than 2%; Cohesive strength (7d): be not less than 0.7MPa; Freezing-thawing cycles: 20 times qualified.
Anti-seepage material prepared by the present invention is compared to existing technology, with low cost, and preparation technology is simple, and product, without any toxicity, can not cause secondary pollution to water resources and ecology, is particularly suitable for collection and the utilization of Desert Area rainwater.
During use, add in the earth rubber type impervious material of above-mentioned preparation flaxseed water (flaxseed glassware for drinking water has very strong gumminess, and process clay surface after, water resistant seepage ability is very good), after being uniformly mixed, spread upon catch pit internal surface, coat-thickness is 8-10mm, is coated with 4 ~ 5 layers altogether.
The wherein preparation of flaxseed water: flaxseed is added water with the mass ratio of 1:10 ~ 1:100, slow fire is endured 50 ~ 80min slowly and be get final product.The consumption of flaxseed water is 3 ~ 6% of earth rubber type impervious material quality.
Embodiment
Below by specific embodiment, the preparation of impervious material of the present invention and service condition are described further.
Get a certain amount of pure natural clay, pulverize in ultrafine crusher, cross 500m mesh sieve; Add the natural gum of clay quality 2% ~ 5% and the water of 80% ~ 150%, be uniformly mixed rear immersion 20 ~ 25 hours, in vacuum deairing machine, stir mixing 3 ~ 5 hours afterwards, obtain earth rubber type impervious material.
Raw material pure natural clay can be drawn materials nearby according to territory of use, as polygorskite (Attapulgite), and polynite, kaolin, loess, laterite, black earth, carclazyte etc.Natural gum is selected from gum arabic, peach gum; Pectin, guar gum, angle beans bean gum, agar-agar, algin etc.Can be bought by market.
During use, according to the size of water storage, dig out certain dell, hole wall and oblique angle at 45 °, the end, hole (the mouth large end is little); In hole, wall surface digs diameter at 50mm, the hole of dark 150mm, hole and wall oblique angle at 45 °, hole.
Distance all around between hole is 200mm, and distributes in a triangle between hole.The earth rubber handled well by vacuum deairing machine dips 10 ~ 30s in flaxseed water, inserts in hole, and beats reality with hammer, and the height of earth rubber is to be advisable higher than hole wall surface 40 ~ 50mm.Follow the prescribed rules in each hole.
In earth rubber type impervious material, add the flaxseed water (get 500g flaxseed, add 50L water, slow fire endures 50 ~ 80min slowly) of its quality 4 ~ 6%, spread upon hole wall and hole basal surface after mixing and stirring, the thickness of coating is about 10mm, is coated with 4 ~ 5 layers altogether.Namely last one deck surface smear is smooth obtains prepared catch pit.
This material is after the desert areas such as Minqin County of Gansu use, water (annual 7 ~ September) is stored when annual precipitation is more, through comparing discovery, the catch pit water retention prepared by this material is relatively the time period is more than 1.5 times that other common used materials prepare catch pit.Pouring water can be provided for a long time, and water-quality ratio store before more time livestock consumption.
Claims (10)
1. for a preparation for the clay-based impervious material of rainwater-collecting, be that pure natural clay was pulverized 500 orders, add natural gum and water, soak 20 ~ 25 hours after stirring, then stir in vacuum deairing machine mixing 3 ~ 5 hours and get final product.
2. as claimed in claim 1 for the preparation of the clay-based impervious material of rainwater-collecting, it is characterized in that: described pure natural clay adopts polygorskite, polynite, kaolin, loess, laterite, at least one in black earth or carclazyte.
3. as claimed in claim 1 or 2 for the preparation of the clay-based impervious material of rainwater-collecting, it is characterized in that: described natural gum adopts plant secretion thing, the flooding extract of plant, seed glue or seaweed gel; The consumption of described natural gum is 2% ~ 5% of clay quality.
4. as described in claim 1,2 for the preparation of the clay-based impervious material of rainwater-collecting, it is characterized in that: the consumption of water is 80% ~ 150% of clay quality.
5. as claimed in claim 3 for the preparation of the clay-based impervious material of rainwater-collecting, it is characterized in that: described plant secretion thing is gum arabic, peach gum.
6. as claimed in claim 3 for the preparation of the clay-based impervious material of rainwater-collecting, it is characterized in that: the flooding extract of described plant is pectin.
7. as claimed in claim 3 for the preparation of the clay-based impervious material of rainwater-collecting, it is characterized in that: described seed glue is guar gum, angle beans bean gum.
8. as claimed in claim 3 for the preparation of the clay-based impervious material of rainwater-collecting, it is characterized in that: seaweed gel is agar-agar or algin.
9. the using method of the clay-based impervious material for rainwater-collecting prepared of method as claimed in claim 1, be add flaxseed water in the earth rubber type impervious material of above-mentioned preparation, after being uniformly mixed, spread upon catch pit internal surface, coat-thickness is 8 ~ 10mm, is coated with 4 ~ 5 layers altogether.
10. as claimed in claim 9 for the using method of the clay-based impervious material of rainwater-collecting, it is characterized in that: the wherein preparation of flaxseed water: flaxseed is added water with the mass ratio of 1:10 ~ 1:100, slow fire is endured 50 ~ 80min slowly and be get final product; The consumption of flaxseed water is 3 ~ 6% of earth rubber type impervious material quality.
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| CN201510948645.2A CN105503042A (en) | 2015-12-17 | 2015-12-17 | Clay-based anti-seepage material used for rainwater collection in desertification region and preparing and using method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417178A (en) * | 2017-05-08 | 2017-12-01 | 西北师范大学 | A kind of preparation method of natural minerals clay-based composite anti-penetrating leakage material |
| CN108585632A (en) * | 2018-06-09 | 2018-09-28 | 西北师范大学 | A kind of anti-chap water retention composite material of soil matrix and preparation method thereof |
| CN108865164A (en) * | 2018-08-21 | 2018-11-23 | 西北师范大学 | A kind of preparation method of inorganic clay-biogum composite water conservation material |
| CN109294591A (en) * | 2018-10-18 | 2019-02-01 | 西北师范大学 | A kind of preparation method of natural earth radical biogum soil waterproof corrosion material |
| CN110482918A (en) * | 2019-09-02 | 2019-11-22 | 西北师范大学 | A kind of preparation method of inorganic clay-macromolecule composite anti-penetrating leakage interlayer |
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| US5917112A (en) * | 1995-05-30 | 1999-06-29 | Van Stephoudt; Franz | Mineral vegetation substrate process for the (Re)cultivation of soils and use |
| CN102174329A (en) * | 2011-02-01 | 2011-09-07 | 甘肃源岗农林开发有限公司 | Gel material for desert planting and preparation method and using method thereof |
| CN102199925A (en) * | 2010-03-24 | 2011-09-28 | 现代工业株式会社 | Particle antiseepage material for seawater |
| CN102630462A (en) * | 2012-04-20 | 2012-08-15 | 西北师范大学 | Method for planting medlar in moving sand areas |
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2015
- 2015-12-17 CN CN201510948645.2A patent/CN105503042A/en active Pending
Patent Citations (4)
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| US5917112A (en) * | 1995-05-30 | 1999-06-29 | Van Stephoudt; Franz | Mineral vegetation substrate process for the (Re)cultivation of soils and use |
| CN102199925A (en) * | 2010-03-24 | 2011-09-28 | 现代工业株式会社 | Particle antiseepage material for seawater |
| CN102174329A (en) * | 2011-02-01 | 2011-09-07 | 甘肃源岗农林开发有限公司 | Gel material for desert planting and preparation method and using method thereof |
| CN102630462A (en) * | 2012-04-20 | 2012-08-15 | 西北师范大学 | Method for planting medlar in moving sand areas |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417178A (en) * | 2017-05-08 | 2017-12-01 | 西北师范大学 | A kind of preparation method of natural minerals clay-based composite anti-penetrating leakage material |
| CN108585632A (en) * | 2018-06-09 | 2018-09-28 | 西北师范大学 | A kind of anti-chap water retention composite material of soil matrix and preparation method thereof |
| CN108865164A (en) * | 2018-08-21 | 2018-11-23 | 西北师范大学 | A kind of preparation method of inorganic clay-biogum composite water conservation material |
| CN109294591A (en) * | 2018-10-18 | 2019-02-01 | 西北师范大学 | A kind of preparation method of natural earth radical biogum soil waterproof corrosion material |
| CN110482918A (en) * | 2019-09-02 | 2019-11-22 | 西北师范大学 | A kind of preparation method of inorganic clay-macromolecule composite anti-penetrating leakage interlayer |
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Application publication date: 20160420 |
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