阅读说明：本技术 用于固土和改善生态环境的绿化混凝土材料及其制备方法 (Greening concrete material for fixing soil and improving ecological environment and preparation method thereof ) 是由 王基和 于 2021-07-29 设计创作，主要内容包括：本发明公开了用于固土和改善生态环境的绿化混凝土材料及其制备方法,配方包括：底层混凝土材料和面层混凝土材料；该发明通过底层和面层结合的方式,提高固土和改善生态环境的目的,通过底层大孔径混凝土的大孔蓄容作用,利于向底层土疏导雨水,蓄容尘土和有机物,由于聚丙烯纤维材料耐酸、耐碱性能优良,抗拉强度好的特点,通过聚丙烯纤维材料的使用,增加了混凝土的裹握力和抗裂性,提高了底层混凝土的性能；面层是在大孔径混凝土表层覆盖一层用于改善生态环境的绿化混凝土,在根系通过时,获得养分,并利于生长,同时,植物根系通过孔隙生长到混凝土底层与土壤紧密结合,进一步发挥抗蚀能力,对防止水土流失起到了固土作用和达到绿化目的。(The invention discloses a greening concrete material for fixing soil and improving ecological environment and a preparation method thereof, wherein the formula comprises the following steps: a bottom concrete material and a surface concrete material; the invention improves the purposes of soil fixation and ecological environment improvement by combining the bottom layer and the surface layer, is beneficial to dredging rainwater to the bottom layer soil and storing dust and organic matters by the large-pore storage effect of the large-pore-diameter concrete of the bottom layer, and increases the wrapping force and crack resistance of the concrete and improves the performance of the bottom layer concrete by using the polypropylene fiber material due to the characteristics of excellent acid resistance and alkali resistance and good tensile strength of the polypropylene fiber material; the surface layer is formed by covering a layer of greening concrete for improving the ecological environment on the surface layer of the large-aperture concrete, so that nutrients are obtained when root systems pass through the greening concrete, the greening concrete is favorable for growth, meanwhile, plant root systems grow to the bottom layer of the concrete through pores and are tightly combined with soil, the corrosion resistance is further exerted, and the soil stabilization effect is realized for preventing water and soil loss and the greening purpose is achieved.)

1. The greening concrete material for fixing soil and improving ecological environment comprises the following components in percentage by weight: bottom concrete material and surface course concrete material, its characterized in that: the weight parts of the components are respectively as follows: 2 parts of bottom concrete material and 1 part of surface concrete material.

2. A green concrete material for soil stabilization and ecological environment improvement according to claim 1, wherein said bottom layer concrete material is composed of 300kg/m³1300kg/m of cement³300kg/m of crushed stone³15kg/m of sand (c)³15kg/m of cementing agent³And 2kg/m of accelerator³Is used as a fiber.

3. A green concrete material for reinforcing soil and improving ecological environment as claimed in claim 1, wherein said surface layer concrete material is composed of 900kg/m³70kg/m of raw planting soil³100g/m of cement²30g/m of organic fertilizer²1kg/m of green seeds³1kg/m of the adhesive³And 2kg/m of a water-retaining agent³The wood fiber of (2).

4. The preparation method of the greening concrete material for fixing soil and improving ecological environment comprises the steps of firstly, surveying the construction site; step two, preparing bottom layer soil stabilization construction; thirdly, soil stabilization construction of the bottom layer; step four, preparing surface layer greening construction; step five, greening the surface; the method is characterized in that:

firstly, checking a construction slope, and reinforcing and stabilizing an unstable slope by using a engineering method; investigating peripheral plants, and analogizing plants suitable for the area according to the distribution condition of the peripheral plants; surveying the topography and geology, and observing the shape, the gradient, the slope height, the lithology, the weathering degree of surface rock mass and the existence of water inrush phenomenon at the site of the engineering;

wherein in the second step, a proper amount of 300kg/m is added³1300kg/m of cement³Of crushed stone、300kg/m³15kg/m of sand (c)³15kg/m of cementing agent³And 2kg/m of accelerator³The polypropylene fiber is mixed by a concrete mixer, and concrete is used for bottom layer concrete fixation;

in the third step, firstly, measurement and paying-off work is carried out, then a galvanized wire mesh is hung on the slope according to the measurement result, then the galvanized wire mesh is fixed through an anchoring part by combining the topographic geology surveyed in the first step, then the concrete prepared in the second step is added with water, and spraying construction is carried out, so that the concrete is quickly attached to the surface of soil (or rock) and is quickly hardened;

wherein in the fourth step, a proper amount of 900kg/m is added³70kg/m of raw planting soil³100g/m of cement²30g/m of organic fertilizer²1kg/m of green seeds³1kg/m of the adhesive³And 2kg/m of a water-retaining agent³The wood fiber is stirred and mixed by a stirrer to prepare the surface layer greening concrete;

and in the fifth step, firstly adding water into the surface layer greening concrete prepared in the fourth step, spraying the water onto the surface of the solidified bottom layer solid concrete, then covering non-woven fabrics on the surface layer of the greening concrete, and then performing maintenance regularly.

5. A method for preparing green concrete material for soil stabilization and ecological environment improvement according to claim 4, characterized in that: in the first step, gradient measurement is carried out, and a proper amount of concrete for fixing the concrete is prepared according to the gradient.

6. A method for preparing green concrete material for soil stabilization and ecological environment improvement according to claim 4, characterized in that: in the second step, the adhesive matrix is a material composition system formed by mixing materials such as redispersible latex powder, silicon powder, cellulose, silicate and the like.

7. A method for preparing green concrete material for soil stabilization and ecological environment improvement according to claim 4, characterized in that: in the third step, before the measurement and paying-off work, the slope surface is cleaned, loose stones and sundries are cleaned, and the hollow part is repaired.

8. A method for preparing green concrete material for soil stabilization and ecological environment improvement according to claim 4, characterized in that: in the fourth step, the water-retaining agent is one or more of PAMA copolymerized super absorbent resin, acrylamide-acrylate copolymerized cross-linked substance and starch grafted acrylate copolymerized cross-linked substance.

9. A method for preparing green concrete material for soil stabilization and ecological environment improvement according to claim 4, characterized in that: and fifthly, checking and accepting work is further included, whether the surface of the green concrete cracks or not is observed, a scouring test is carried out, whether scouring strength and mechanical property reach standards or not is detected, and a water permeability detector is adopted for carrying out water permeability detection.

Technical Field

The invention relates to the technical field of greening engineering materials, in particular to a greening concrete material for fixing soil and improving ecological environment and a preparation method thereof.

Background

In desertification, sandy desertification, soil salinization, water and soil loss and the like are serious, the economic development of desertification areas and the improvement of the living standard of people are greatly limited, the main reasons for forming the desertification are natural factors and human factors, the originally fragile ecological environment is stricken by fatal wind in the natural factors, the accumulation of salts is accelerated by the evaporation of farmlands, the infertile land is further deteriorated along with drought, the desertification can be caused by rainstorm, and the resistance to rainfall is weak in the arid areas with poor vegetation and fragile land, so that the erosion of the soil is easy to occur; human factors, industrial progress and rapid development of infrastructure bring certain damage and influence to the ecological environment, so that vegetation damage, water and soil loss and imbalance of a natural ecological system in some regions are caused, excessive grazing, random cultivation and disorder, unreasonable cultivation and extensive management are caused by the rapid increase of population and improper utilization of natural resources, the balance of the ecological system is damaged by human activities such as unreasonable utilization of water resources, and desertification of the land is caused.

Disclosure of Invention

The invention aims to provide a greening concrete material for fixing soil and improving ecological environment and a preparation method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the greening concrete material for fixing soil and improving ecological environment comprises the following components in percentage by weight: the concrete material of the bottom layer and the concrete material of the surface layer comprise the following components in parts by weight: 2 parts of bottom concrete material and 1 part of surface concrete material.

Preferably, the bottom concrete material is made of 300kg/m³1300kg/m of cement³300kg/m of crushed stone³15kg/m of sand (c)³15kg/m of cementing agent³And 2kg/m of accelerator³Is used as a fiber.

Preferably, the surface layer concrete material consists of 900kg/m³70kg/m of raw planting soil³100g/m of cement²30g/m of organic fertilizer²1kg/m of green seeds³1kg/m of the adhesive³And 2kg/m of a water-retaining agent³The wood fiber of (2).

The preparation method of the greening concrete material for fixing soil and improving ecological environment comprises the steps of firstly, surveying the construction site; step two, preparing bottom layer soil stabilization construction; thirdly, soil stabilization construction of the bottom layer; step four, preparing surface layer greening construction; step five, greening the surface;

firstly, checking a construction slope, and reinforcing and stabilizing an unstable slope by using a engineering method; investigating peripheral plants, and analogizing plants suitable for the area according to the distribution condition of the peripheral plants; surveying the topography and geology, and observing the shape, the gradient, the slope height, the lithology, the weathering degree of surface rock mass and the existence of water inrush phenomenon at the site of the engineering;

wherein in the second step, a proper amount of 300kg/m is added³1300kg/m of cement³300kg/m of crushed stone³15kg/m of sand (c)³15kg/m of cementing agent³And 2kg/m of accelerator³The polypropylene fiber is mixed by a concrete mixer, and concrete is used for bottom layer concrete fixation;

in the third step, firstly, measurement and paying-off work is carried out, then a galvanized wire mesh is hung on the slope according to the measurement result, then the galvanized wire mesh is fixed through an anchoring part by combining the topographic geology surveyed in the first step, then the concrete prepared in the second step is added with water, and spraying construction is carried out, so that the concrete is quickly attached to the surface of soil (or rock) and is quickly hardened;

wherein in the fourth step, a proper amount of 900kg/m is added³70kg/m of raw planting soil³100g/m of cement²30g/m of organic fertilizer²1kg/m of green seeds³1kg/m of the adhesive³And 2kg/m of a water-retaining agent³The wood fiber is stirred and mixed by a stirrer to prepare the surface layer greening concrete;

and in the fifth step, firstly adding water into the surface layer greening concrete prepared in the fourth step, spraying the water onto the surface of the solidified bottom layer solid concrete, then covering non-woven fabrics on the surface layer of the greening concrete, and then performing maintenance regularly.

Preferably, in the first step, gradient measurement is performed, and a proper amount of concrete for fixing is prepared according to the gradient.

Preferably, in the second step, the adhesive matrix is a material composition system formed by mixing materials such as redispersible latex powder, silica powder, cellulose, silicate and the like.

Preferably, in the third step, before the measurement and paying-off work, the slope surface is cleaned, loose stones and sundries are cleaned, and the hollow part is repaired.

Preferably, in the fourth step, the water retention agent is one or more of PAMA copolymerized super absorbent resin, acrylamide-acrylate copolymerized cross-linked product and starch grafted acrylate copolymerized cross-linked product.

Preferably, the fifth step further comprises acceptance work, whether the surface of the green concrete cracks or not is observed, a scouring test is performed, whether scouring strength and mechanical property reach standards or not is detected, and a water permeability detector is used for water permeability detection.

Compared with the prior art, the invention has the beneficial effects that: the invention is safe and reliable, the purposes of soil fixation and ecological environment improvement are improved in a mode of combining the bottom layer and the surface layer, rainwater is favorably dredged to the bottom layer soil, dust and organic matters are stored and held by the large-pore storage function of the large-pore-diameter concrete of the bottom layer, and the wrapping force and the crack resistance of the concrete are improved and the performance of the bottom layer concrete is improved due to the characteristics of excellent acid resistance and alkali resistance and good tensile strength of the polypropylene fiber material; the surface layer is formed by covering a layer of greening concrete for improving the ecological environment on the surface layer of the large-aperture concrete, so that nutrients are obtained and the growth is facilitated when root systems pass through, meanwhile, the plant root systems grow to the bottom layer of the concrete through pores and are tightly combined with soil, the corrosion resistance is further exerted, the soil fixation effect is achieved for preventing water and soil loss, and the greening purpose is achieved; the greening concrete material greatly improves the soil fixation rate, solves the problem of water and soil loss, has high greening rate, solves the problem of desertification, has no crack in the appearance of the concrete ground made of the greening concrete material, solves the problem of cracking of the surface of the greening concrete, has strong anti-scouring capability and solves the strength problem of the greening concrete.

Drawings

FIG. 1 is a flow chart of the bottom soil stabilization construction process of the present invention;

FIG. 2 is a flowchart of the surface greening construction process of the present invention;

FIG. 3 is a flow chart of the method of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a technical solution provided by the present invention is: the greening concrete material for fixing soil and improving ecological environment comprises the following components in percentage by weight: the concrete material of the bottom layer and the concrete material of the surface layer comprise the following components in parts by weight: 2 parts of bottom layer concrete material and 1 part of surface layer concrete material; the bottom layer concrete material is composed of 300kg/m³1300kg/m of cement³300kg/m of crushed stone³15kg/m of sand (c)³15kg/m of cementing agent³And 2kg/m of accelerator³The polypropylene fiber composition of (a); the surface layer concrete material consists of 900kg/m³70kg/m of raw planting soil³100g/m of cement²30g/m of organic fertilizer²1kg/m of green seeds³1kg/m of the adhesive³And 2kg/m of a water-retaining agent³The wood fiber of (2).

The preparation method of the greening concrete material for fixing soil and improving ecological environment comprises the steps of firstly, surveying the construction site; step two, preparing bottom layer soil stabilization construction; thirdly, soil stabilization construction of the bottom layer; step four, preparing surface layer greening construction; step five, greening the surface;

firstly, checking a construction slope, and reinforcing and stabilizing an unstable slope by using a engineering method; investigating peripheral plants, and analogizing plants suitable for the area according to the distribution condition of the peripheral plants; surveying the topography and geology, observing the shape, the gradient, the slope height, the lithology and the weathering degree of surface rock mass and the existence of water inrush phenomenon of a side slope at the engineering location, measuring the gradient, and preparing a proper amount of concrete for fixing the soil according to the gradient;

wherein in the second step, a proper amount of 300kg/m is added³1300kg/m of cement³300kg/m of crushed stone³15kg/m of sand (c)³15kg/m of cementing agent³And 2kg/m of accelerator³The polypropylene fiber is mixed by a concrete mixer, the concrete is used for bottom layer concrete fixation, and the adhesive matrix is a material composition system formed by mixing materials such as redispersible latex powder, silica powder, cellulose, silicate and the like;

in the third step, firstly, cleaning and tidying the slope surface, cleaning loose stones and sundries, repairing the hollow parts, then carrying out measurement and paying-off work, then hanging and plating a galvanized wire mesh on the slope surface according to the measurement result, fixing the galvanized wire mesh through an anchoring part by combining the topographic geology investigated in the first step, then adding water into the concrete prepared in the second step, carrying out spray construction, and enabling the concrete to be quickly attached to the surface of soil (or rocks) and to be quickly hardened;

wherein in the fourth step, a proper amount of 900kg/m is added³70kg/m of raw planting soil³100g/m of cement²30g/m of organic fertilizer²1kg/m of green seeds³1kg/m of the adhesive³And 2kg/m of a water-retaining agent³The wood fiber is stirred and mixed by a stirrer to prepare surface layer greening concrete, and the water retention agent is one or more of PAMA (polyaspartic acid) copolymerized super absorbent resin, acrylamide-acrylate copolymerized cross-linked substance and starch grafted acrylate copolymerized cross-linked substance;

and in the fifth step, firstly adding water into the surface layer greening concrete prepared in the fourth step, spraying the water onto the surface of the solidified bottom layer solid concrete, then covering non-woven fabrics on the surface layer of the greening concrete, carrying out maintenance work at regular time, carrying out acceptance check work, observing whether the surface of the greening concrete cracks, carrying out a scouring test, detecting whether the scouring strength and the mechanical property reach the standard, and carrying out water permeation detection by adopting a water permeation detector.

Based on the above, compared with the traditional greening concrete material, the greening concrete material adopts a mode of combining the bottom layer and the surface layer, the bottom layer adopts large-aperture concrete, rainwater can be guided to the bottom layer soil by the concrete body through the large-aperture capacity storage effect, dust and organic matters can be stored, and due to the characteristics of excellent acid resistance and alkali resistance and good tensile strength of the polypropylene fiber material, the wrapping force and crack resistance of the concrete are increased and the performance of the bottom layer concrete is improved by adding the polypropylene fiber material into the bottom layer concrete material; the surface layer is a green concrete layer which is covered on the surface of the bottom layer concrete and is used for improving the ecological environment, when the root system passes through, nutrients are obtained, the growth is facilitated, meanwhile, the plant root system grows to the concrete bottom layer through the pores and is tightly combined with the soil, the corrosion resistance is further exerted, the water and soil loss is facilitated, and the greening is improved; the greening concrete material greatly improves the soil fixation rate, solves the problem of water and soil loss, has high greening rate, solves the problem of desertification, has no crack in appearance, solves the problem of cracking of the surface of the greening concrete, has strong anti-scouring capability and solves the strength problem of the greening concrete.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.