Ecological sea dike with multiple voids in strong tidal bore area and vegetation planting method

Abstract

The application discloses a kind of strong tidal zone multi-void structure ecological seawall and vegetation planting method, belong to ecological seawall technical field, specifically related to a kind of vegetation-growing concrete, comprising: powder and aggregate, powder includes cement and fly ash, the use amount of fly ash is 5-15wt% of cement, the particle size of aggregate is 20-30mm, the use amount of aggregate is 400-600wt% of cement.Plant-growing concrete also contains polyacrylate material, polyacrylate material includes phenyl polyacrylate and / or silicon-based polyacrylate.The application provides a kind of plant-growing concrete with high connected porosity and good frost resistance, and further prepares to obtain the strong tidal zone multi-void structure ecological seawall using plant-growing concrete, and plants vegetation on ecological seawall.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ecological seawall and specifically relates to a multi-void structure ecological seawall in a strong tidal area and a vegetation planting method. BACKGROUND

[0002] Traditional river, lake and ocean revetments and road slope revetments generally adopt ordinary concrete, and the revetment form is single, which blocks the connection between the water body and the soil on the bank, or the closed revetment surface causes plants to be unable to grow, so that many aquatic animals or plants lose living space, biological diversity is reduced, the biological chain is broken, and the ecological balance is destroyed. The vegetation-growing concrete, also known as the pervious concrete or porous concrete, is a kind of porous lightweight concrete which is prepared by mixing aggregates, cement and water, and does not contain fine aggregates. The vegetation-growing concrete is formed by the mutual adhesion of a thin layer of cement paste on the surface of coarse aggregates to form a honeycomb structure with uniformly distributed pores, and has the characteristics of air permeability, water permeability and light weight. The application of the vegetation-growing concrete to the river, lake and ocean revetments and road slope revetments can improve the heat and moisture exchange capacity, reduce the surface temperature of the concrete material, alleviate the contradiction between urban construction and urban ecology, and more importantly, can realize the effective combination of the revetment and plant growth to form a relatively stable and ornamental ecological system. SUMMARY

[0003] The application aims to provide vegetation-growing concrete with high connected porosity and good frost resistance, and further provide a multi-void structure ecological seawall in a strong tidal area and a vegetation planting method using the vegetation-growing concrete.

[0004] The technical scheme adopted by the application to achieve the above-mentioned purpose is as follows.

[0005] Preferably, the polyacrylate material comprises a phenyl polyacrylate and / or a silicon-based polyacrylate.

[0006] The application discloses a preparation method of vegetation-growing concrete, which comprises the following steps: mixing a powder and an aqueous solution, then adding aggregates, and molding to obtain the vegetation-growing concrete, wherein the use amount of fly ash is 5-15wt% of cement, the particle size of the aggregates is 20-30mm, and the use amount of the aggregates is 400-600wt% of cement.

[0007] The ecological planting type concrete cannot adopt the conventional mixing process of ordinary concrete, and adopts a neat paste stone-wrapping process. The powder and the aqueous solution are stirred for a period of time, and then the aggregates are added and stirred together. In this way, the aggregates are neither subjected to the damaging effect of mechanical abrasion nor absorb water in the cement paste to reduce the fluidity of the slurry.

[0008] Preferably, the aqueous solution comprises water or a polyacrylate emulsion; the polyacrylate emulsion comprises a phenyl polyacrylate emulsion and / or a silicon-based polyacrylate emulsion. In the process of preparing the green concrete, the performance of the green concrete can be improved by adding the polyacrylate in the mixing of the polyacrylate and the powder and the aggregate. In the use of the polyacrylate, the phenyl polyacrylate and / or the silicon-based polyacrylate is used to prepare the green concrete, so that the frost resistance and the connected porosity of the green concrete can be improved.

[0009] The application discloses a kind of green concrete, comprising: powder and aggregate, powder includes cement and fly ash, the use amount of fly ash is 5-15wt% of cement, the particle size of aggregate is 20-30mm, the use amount of aggregate is 400-600wt% of cement.

[0010] Preferably, the aggregate includes gravel or pebble, the gravel is formed by natural rock crushing and screening, and the pebble is formed by natural weathering and water transport; or, the aggregate is used after being fully pre-soaked in water.

[0011] Preferably, the green concrete further contains a polyacrylate material.

[0012] Preferably, in the preparation of the green concrete, the cement and the fly ash are dry mixed for 1-5 minutes, then the aqueous solution is added and mixed for 1-5 minutes, then the aggregate is added and mixed for 1-5 minutes, and then the mixture is formed in a mold, cured for 28 days, soaked in a dealkalization solution for 12-48 hours, washed and dried to obtain the green concrete.

[0013] More preferably, in the preparation of the green concrete, the use amount of fly ash is 5-15wt% of cement.

[0014] More preferably, in the preparation of the green concrete, the aqueous solution is water or a polyacrylate emulsion, and the use amount of the aqueous solution is 30-40wt% of cement.

[0015] More preferably, in the preparation of the green concrete, the aggregate includes gravel or pebble, the gravel is formed by natural rock crushing and screening, and the pebble is formed by natural weathering and water transport, the particle size of the aggregate is 20-30mm, the aggregate is fully pre-soaked in water, and the use amount of the aggregate is 400-600wt% of cement.

[0016] More preferably, in the preparation of the green concrete, the dealkalization solution includes a calcium superphosphate solution, a ferrous sulfate solution and a DPS permanent setting solution.

[0017] More preferably, in the preparation of the green concrete, the content of calcium superphosphate in the calcium superphosphate solution is 2-5wt%.

[0018] More preferably, in the preparation of the vegetation concrete, the content of ferrous sulfate in the ferrous sulfate solution is 1-2wt%.

[0019] More preferably, in the preparation of the vegetation concrete, the polyacrylate emulsion comprises a phenyl polyacrylate emulsion and a silicon-based polyacrylate emulsion, and the phenyl polyacrylate emulsion and the silicon-based polyacrylate emulsion in the polyacrylate emulsion are mixed at a volume ratio of 1:0.1-10.

[0020] Preferably, in the preparation of the phenyl polyacrylate emulsion, an emulsifier is added to deionized water and stirred and mixed to obtain an emulsified aqueous solution; an acrylate monomer is added to the emulsified aqueous solution and homogeneously mixed to obtain an acrylate emulsion; then an initiator is added, stirred and mixed, and reacted at a temperature of 60-90℃ for 10-60min to obtain the polyacrylate emulsion.

[0021] More preferably, in the preparation of the phenyl polyacrylate emulsion, the emulsifier comprises at least one of sodium dodecyl sulfate and polyoxyethylene octyl phenol ether-10, and the use amount of the emulsifier is 3-15wt% of the deionized water, and SDS and OP-10 in the emulsifier are used at a mass ratio of 1:0.2-5.

[0022] More preferably, in the preparation of the phenyl polyacrylate emulsion, the acrylate monomer comprises butyl methacrylate and 2-phenylethyl methacrylate, the use amount of the butyl methacrylate is 1-5wt% of the emulsified aqueous solution, and the use amount of the 2-phenylethyl methacrylate is 10-30wt% of the butyl methacrylate.

[0023] More preferably, in the preparation of the phenyl polyacrylate emulsion, the initiator is APS, and the use amount of the initiator is 1-5wt% of the acrylate monomer.

[0024] Preferably, in the preparation of the silicon-based polyacrylate emulsion, an emulsifier is added to deionized water and stirred and mixed to obtain an emulsified aqueous solution; an acrylate monomer is added to the emulsified aqueous solution and homogeneously mixed to obtain an acrylate emulsion; then an initiator is added, stirred and mixed, and reacted at a temperature of 60-90℃ for 10-60min to obtain the polyacrylate emulsion.

[0025] More preferably, in the preparation of the silicon-based polyacrylate emulsion, the emulsifier comprises at least one of sodium dodecyl sulfate and polyoxyethylene octyl phenol ether-10, and the use amount of the emulsifier is 3-15wt% of the deionized water, and SDS and OP-10 in the emulsifier are used at a mass ratio of 1:0.2-5.

[0026] More preferably, in the preparation of the silicon-based polyacrylate emulsion, the acrylate monomer comprises butyl methacrylate and triisopropyl silicyle acrylate, the use amount of butyl methacrylate is 1-5wt% of the aqueous solution, and the use amount of triisopropyl silicyle acrylate is 10-30wt% of butyl methacrylate.

[0027] More preferably, in the preparation of the silicon-based polyacrylate emulsion, the initiator is APS, and the use amount of the initiator is 1-5wt% of the acrylate monomer.

[0028] More preferably, in the preparation of the phenyl polyacrylate emulsion, hydroxyethyl methacrylate can also be added, and the use amount of hydroxyethyl methacrylate is 5-20wt% of butyl methacrylate. When phenyl polyacrylate and silicon-based polyacrylate are used, hydroxyethyl methacrylate is added in the preparation of phenyl polyacrylate to obtain phenyl polyacrylate containing hydroxyethyl methacrylate structure, which can further improve the frost resistance and connected porosity of the vegetation concrete when used together with the silicon-based polyacrylate.

[0029] The application discloses an ecological seawall, comprising the vegetation concrete and a coating material.

[0030] Preferably, the coating material comprises garden soil, peat soil, vermiculite, organic fertilizer, ferrous sulfate and potassium dihydrogen phosphate.

[0031] Preferably, the pore filling material comprises garden soil, peat soil, organic fertilizer, ferrous sulfate and potassium dihydrogen phosphate.

[0032] Preferably, in the preparation of the pore filling material, garden soil, peat soil, organic fertilizer, ferrous sulfate, potassium dihydrogen phosphate and water are mixed to obtain the pore filling material.

[0033] More preferably, in the preparation of the pore filling material, the use amount of peat soil is 83-93wt% of the garden soil.

[0034] More preferably, in the preparation of the pore filling material, the use amount of organic fertilizer is 3-9wt% of the garden soil.

[0035] More preferably, in the preparation of the pore filling material, the use amount of ferrous sulfate is 1.5-4.5wt% of the garden soil.

[0036] More preferably, in the preparation of the pore filling material, the use amount of potassium dihydrogen phosphate is 1.5-4.5wt% of the garden soil.

[0037] More preferably, in the preparation of the pore filling material, the use amount of water is 300-500wt% of the garden soil.

[0038] More preferably, in the preparation of the pore filling material, the garden soil is common cultivation soil, and the organic fertilizer comprises at least one of human excrement and urine, manure, compost, green manure, cake fertilizer and biogas fertilizer.

[0039] Preferably, in the preparation of the coating material, the garden soil, peat soil, vermiculite, organic fertilizer, ferrous sulfate, potassium dihydrogen phosphate and water are mixed to obtain the coating material.

[0040] More preferably, in the preparation of the coating material, the amount of the peat soil is 80-88wt% of the garden soil.

[0041] More preferably, in the preparation of the coating material, the amount of the vermiculite is 5-15wt% of the garden soil.

[0042] More preferably, in the preparation of the coating material, the amount of the organic fertilizer is 2-6wt% of the garden soil.

[0043] More preferably, in the preparation of the coating material, the amount of the ferrous sulfate is 0.5-2wt% of the garden soil.

[0044] More preferably, in the preparation of the coating material, the amount of the potassium dihydrogen phosphate is 5-20wt% of the garden soil.

[0045] More preferably, in the preparation of the coating material, the amount of the water is 90-150wt% of the garden soil.

[0046] Preferably, in the preparation of the ecological seawall, the pore filling material is filled into the phytogenic concrete by the soaking method or the perfusion method to obtain the middle-layer phytogenic concrete, and then the ecological seawall is prepared by using the layer structure of the coating material, the middle-layer phytogenic concrete and the lower coating material. Since the effective pore diameter of the phytogenic concrete is small, if the matrix of the pore filling material is dry mixed and directly filled into the pores, the viscosity is insufficient to stay on the pore wall, and a fault is easily formed in the middle region of the phytogenic concrete. The soaking method or the perfusion method is used for filling, and all regions in the pores are uniformly covered by using the gravity and the flow performance of the matrix, and the effect is good.

[0047] More preferably, in the preparation of the ecological seawall, the pore filling material is uniformly covered in all regions in the pores of the phytogenic concrete by using the gravity and the flow performance of the matrix.

[0048] More preferably, in the preparation of the ecological seawall, the thickness ratio of the upper coating material, the middle-layer phytogenic concrete and the lower coating material is 10-30:50-100:100-300.

[0049] The application discloses a vegetation planting method, which comprises planting vegetation on the ecological seawall.

[0050] The present application adopts the method of mixing cement and fly ash into powder, then adding water solution, adding pre-soaked aggregate, stirring and mixing, shaping in a mold, treating in a dealkalization solution and drying to obtain the vegetation concrete, the vegetation concrete has good frost resistance, the mass loss rate of the vegetation concrete is low after freeze-thaw cycle, the polyacrylate can be added in the preparation of the vegetation concrete, and the vegetation concrete is prepared together with the powder and the aggregate, the vegetation concrete can be used for vegetation to obtain the ecological seawall with multi-void structure, and the vegetation concrete has the following beneficial effects: the vegetation concrete has good frost resistance and high connected porosity, and the ecological seawall with good frost resistance and high connected porosity is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 Figure 1 is a vegetation planting structure diagram.

[0052] Figure 2 Figure 2 is an ecological seawall structure diagram.

[0053] Figure 3 Figure 3 is a mass loss rate diagram.

[0054] Figure 4 Figure 4 is a connected porosity diagram. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0056] The concepts involved in the present application will be described below with reference to the drawings. It should be pointed out that the descriptions of the concepts below are only to make the content of the present application easier to understand, and do not limit the scope of protection of the present application; meanwhile, the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0057] Embodiment 1: A preparation method of vegetation concrete

[0058] Preparation of the green concrete: cement and fly ash were dry mixed for 1 min, then water was added and mixed for 1 min, then aggregate was added and mixed for 1 min, and then the mixture was shaped in a mold, cured for 28 days, soaked in a dealkalization solution for 24 h, washed and dried to obtain the green concrete. The amount of fly ash used was 11.11 wt% of cement, the amount of water used was 38.89 wt% of cement, the aggregate was gravel, the gravel was obtained by crushing and sieving natural rock, the particle size of the aggregate was 20-30 mm, the aggregate was fully pre-soaked in water, and the amount of aggregate used was 518 wt% of cement. The dealkalization solution was a calcium superphosphate solution. The content of calcium superphosphate in the calcium superphosphate solution was 5 wt%.

[0059] Example 2: A method for preparing a green concrete

[0060] Preparation of the phenyl polyacrylate emulsion: an emulsifier was added to deionized water and mixed to obtain an emulsified aqueous solution; an acrylate monomer was added to the emulsified aqueous solution and homogeneously mixed to obtain an acrylate emulsion; then an initiator was added and mixed, and the mixture was reacted at a temperature of 75 °C for 20 min to obtain a polyacrylate emulsion. The emulsifier included sodium dodecyl sulfate (SDS) and polyoxyethylene octyl phenol ether-10 (OP-10), and the amount of emulsifier used was 7.6 wt% of deionized water; the mass ratio of SDS to OP-10 in the emulsifier was 1:0.75; the acrylate monomer included butyl methacrylate and 2-phenylethyl methacrylate, the amount of butyl methacrylate used was 2.5 wt% of the emulsified aqueous solution, and the amount of 2-phenylethyl methacrylate used was 27 wt% of the butyl methacrylate; the initiator was APS, and the amount of initiator used was 3 wt% of the acrylate monomer.

[0061] Preparation of the silicon-based polyacrylate emulsion: an emulsifier was added to deionized water and mixed to obtain an emulsified aqueous solution; an acrylate monomer was added to the emulsified aqueous solution and homogeneously mixed to obtain an acrylate emulsion; then an initiator was added and mixed, and the mixture was reacted at a temperature of 75 °C for 20 min to obtain a polyacrylate emulsion. The emulsifier included sodium dodecyl sulfate (SDS) and polyoxyethylene octyl phenol ether-10 (OP-10), and the amount of emulsifier used was 7.6 wt% of deionized water; the mass ratio of SDS to OP-10 in the emulsifier was 1:0.75; the acrylate monomer included butyl methacrylate and triisopropyl silyl acrylate, the amount of butyl methacrylate used was 2.5 wt% of the emulsified aqueous solution, and the amount of triisopropyl silyl acrylate used was 25 wt% of the butyl methacrylate; the initiator was APS, and the amount of initiator used was 3 wt% of the acrylate monomer.

[0062] Preparation of the green concrete: the cement and fly ash were stirred and dry-mixed for 1 min, then the polyacrylate emulsion was added and stirred and mixed for 1 min, then the aggregate was added and stirred and mixed for 1 min, and then the mixture was shaped in a mold, cured for 28 d, soaked in a desalination solution for 24 h, washed and dried to obtain the green concrete. The amount of fly ash used was 11.11 wt% of the cement, the polyacrylate emulsion included a phenyl polyacrylate emulsion and a silicon-based polyacrylate emulsion, the phenyl polyacrylate emulsion and the silicon-based polyacrylate emulsion were mixed at a volume ratio of 1:1, the amount of polyacrylate emulsion used was 38.89 wt% of the cement, the aggregate was gravel, the gravel was obtained by crushing and sieving natural rock, the particle size of the aggregate was 20-30 mm, the aggregate was fully pre-soaked in water, and the amount of aggregate used was 518 wt% of the cement. The desalination solution was a superphosphoric acid calcium solution. The content of superphosphoric acid calcium in the superphosphoric acid calcium solution was 5 wt%.

[0063] Example 3: A method for preparing a green concrete

[0064] This example differs from Example 2 in the preparation of the phenyl polyacrylate emulsion and the preparation of the silicon-based polyacrylate emulsion. In the preparation of the phenyl polyacrylate emulsion, the amount of 2-phenylethyl methacrylate used was 15 wt% of the butyl methacrylate. In the preparation of the silicon-based polyacrylate emulsion, the amount of triisopropyl silicate acrylate used was 13 wt% of the butyl methacrylate.

[0065] Example 4: A method for preparing a green concrete

[0066] This example differs from Example 2 in the preparation of the phenyl polyacrylate emulsion.

[0067] Preparation of the phenyl polyacrylate emulsion: the emulsifier was added to deionized water and stirred and mixed to obtain an emulsified aqueous solution; the acrylate monomer was added to the emulsified aqueous solution and homogeneously mixed to obtain an acrylate emulsion; then the initiator was added and stirred and mixed, and the reaction was carried out at a temperature of 75°C for 20 min to obtain a polyacrylate emulsion. The emulsifier included sodium dodecyl sulfate (SDS) and polyoxyethylene octyl phenol ether-10 (OP-10), the amount of emulsifier used was 7.6 wt% of the deionized water, and the mass ratio of SDS to OP-10 in the emulsifier was 1:0.75; the acrylate monomer included butyl methacrylate, 2-phenylethyl methacrylate, and hydroxyethyl methacrylate, the amount of butyl methacrylate used was 25 wt% of the emulsified aqueous solution, the amount of 2-phenylethyl methacrylate used was 27 wt% of the butyl methacrylate, and the amount of hydroxyethyl methacrylate used was 16 wt% of the butyl methacrylate; the initiator was APS, and the amount of initiator used was 3 wt% of the acrylate monomer.

[0068] Example 5: A method for preparing a green concrete

[0069] The difference between this embodiment and embodiment 4 is the preparation of the phenyl polyacrylate emulsion. In the preparation of the phenyl polyacrylate emulsion, the amount of hydroxyethyl methacrylate used is 6wt% of butyl methacrylate.

[0070] Embodiment 6: A method for preparing an ecological seawall

[0071] Preparation of the pore filling material: garden soil, peat soil, organic fertilizer, ferrous sulfate, potassium dihydrogen phosphate and water are mixed to obtain the pore filling material. The amount of peat soil used is 88wt% of the garden soil, the amount of organic fertilizer used is 6wt% of the garden soil, the amount of ferrous sulfate used is 3wt% of the garden soil, the amount of potassium dihydrogen phosphate used is 3wt% of the garden soil, and the amount of water used is 400wt% of the garden soil. The garden soil is ordinary cultivation soil, and the organic fertilizer includes at least one of human excrement, manure, compost, green manure, cake fertilizer and biogas fertilizer.

[0072] Preparation of the coating material: garden soil, peat soil, vermiculite, organic fertilizer, ferrous sulfate, potassium dihydrogen phosphate and water are mixed to obtain the coating material. The amount of peat soil used is 84wt% of the garden soil, the amount of vermiculite used is 10wt% of the garden soil, the amount of organic fertilizer used is 4wt% of the garden soil, the amount of ferrous sulfate used is 1wt% of the garden soil, the amount of potassium dihydrogen phosphate used is 10wt% of the garden soil, and the amount of water used is 100wt% of the garden soil.

[0073] Preparation of the ecological seawall: the pore filling material is filled into the vegetation concrete by soaking or pouring method to obtain the middle layer vegetation concrete, and then the ecological seawall is prepared by using the hierarchical structure of the upper coating material, the middle layer vegetation concrete and the lower coating material. The pore filling material is evenly covered in all areas of the vegetation concrete pores by using gravity and the flow performance of the substrate itself. The thickness ratio of the upper coating material, the middle layer vegetation concrete and the lower coating material is 25:75:225. The lower coating material is in the soil loss prevention net bag. The vegetation concrete is prepared by the method of embodiment 1.

[0074] The vegetation planting structure is as shown in Figure 1 , 1 is the upper coating material, 2 is the middle layer vegetation concrete, and 3 is the lower coating material. The structure diagram of the ecological seawall is as shown in Figure 2 , 1 is the upper coating material, 2 is the middle layer vegetation concrete, 3 is the lower coating material, 4 is the vegetation, 5 is ordinary concrete, and 6 is the soil loss prevention net bag.

[0075] Embodiment 7: A method for preparing an ecological seawall

[0076] The difference between this embodiment and embodiment 6 is that in the preparation of the ecological seawall, the vegetation concrete is prepared by the method of embodiment 2.

[0077] Example 8: A method of preparing an ecological seawall

[0078] This example differs from Example 6 in that the ecological seawall is prepared using the method of Example 3 to prepare the plant growth concrete.

[0079] Example 9: A method of preparing an ecological seawall

[0080] This example differs from Example 6 in that the ecological seawall is prepared using the method of Example 4 to prepare the plant growth concrete.

[0081] Example 10: A method of preparing an ecological seawall

[0082] This example differs from Example 6 in that the ecological seawall is prepared using the method of Example 5 to prepare the plant growth concrete.

[0083] Example 11: A method of planting vegetation

[0084] Planting vegetation: vegetation is placed on the mulch material on top of the ecological seawall and the vegetation roots draw nutrients from the mulch material at the bottom of the ecological seawall after passing through the plant growth concrete. The ecological seawall is from Example 6.

[0085] Example 12: A method of planting vegetation

[0086] Planting vegetation: vegetation is placed on the mulch material on top of the ecological seawall and the vegetation roots draw nutrients from the mulch material at the bottom of the ecological seawall after passing through the plant growth concrete. The ecological seawall is from Example 7.

[0087] Example 13: A method of planting vegetation

[0088] Planting vegetation: vegetation is placed on the mulch material on top of the ecological seawall and the vegetation roots draw nutrients from the mulch material at the bottom of the ecological seawall after passing through the plant growth concrete. The ecological seawall is from Example 8.

[0089] Example 14: A method of planting vegetation

[0090] Planting vegetation: vegetation is placed on the mulch material on top of the ecological seawall and the vegetation roots draw nutrients from the mulch material at the bottom of the ecological seawall after passing through the plant growth concrete. The ecological seawall is from Example 9.

[0091] Example 15: A method of planting vegetation

[0092] Planting vegetation: vegetation is placed on the mulch material on top of the ecological seawall and the vegetation roots draw nutrients from the mulch material at the bottom of the ecological seawall after passing through the plant growth concrete. The ecological seawall is from Example 10.

[0093] Preparation method of a kind of vegetation concrete

[0094] The present comparative example differs from example 2 in the preparation of vegetation concrete. In the preparation of vegetation concrete, the phenyl polyacrylate emulsion is replaced by a silicon-based polyacrylate emulsion.

[0095] Preparation method of a kind of vegetation concrete

[0096] The present comparative example differs from example 2 in the preparation of vegetation concrete. In the preparation of vegetation concrete, the silicon-based polyacrylate emulsion is replaced by a phenyl polyacrylate emulsion.

[0097] Preparation method of a kind of vegetation concrete

[0098] The present comparative example differs from example 2 in the preparation of vegetation concrete, replacing the polyacrylate emulsion with a polybutyl methacrylate emulsion.

[0099] Preparation of polybutyl methacrylate emulsion: emulsifying agent was added to deionized water and stirred to mix, obtaining an emulsified aqueous solution; acrylic ester monomer was added to the emulsified aqueous solution and homogenized to mix, obtaining an acrylic ester emulsion; then initiator was added, stirred to mix, and reacted at a temperature of 75°C for 20 min, obtaining a polyacrylate emulsion. The emulsifying agent includes sodium dodecyl sulfate and polyoxyethylene octyl phenol ether-10, and the use amount of the emulsifying agent is 7.6wt% of the deionized water, and SDS and OP-10 in the emulsifying agent are used in a mass ratio of 1:0.75; the acrylic ester monomer includes butyl methacrylate, and the use amount of butyl methacrylate is 2.5wt% of the emulsified aqueous solution; the initiator is APS, and the use amount of the initiator is 3wt% of the acrylic ester monomer.

[0100] Test example:

[0101] The vegetation concrete prepared in examples 1-5 and comparative examples 1-3 was subjected to freeze-thaw cycle test according to GB / T 50082-2024 "Standard Test Methods for Long-Term Performance and Durability of Concrete", and the mass loss rate of the vegetation concrete was calculated after 300 cycles of freeze-thaw, and the results are as follows Figure 3The cement and fly ash are mixed into powder, then the water-based solution is added for mixing, then the pre-soaked aggregate is added, and after stirring and mixing, the mixture is placed in a mold, and finally, the alkaline solution is treated and dried to obtain the green concrete. The green concrete obtained by the application has good frost resistance, and the mass loss rate of the green concrete after freeze-thaw cycle is low. In the preparation of the green concrete, polyacrylate can also be added, which is used together with the powder and aggregate to prepare the green concrete. The polyacrylate includes phenyl polyacrylate and silicon-based polyacrylate. The phenyl polyacrylate is prepared by the reaction of butyl methacrylate and 2-phenylethyl methacrylate, and the silicon-based polyacrylate is prepared by the reaction of butyl methacrylate and triisopropyl silyl acrylate. It is found that when the phenyl polyacrylate and the silicon-based polyacrylate are used together in the preparation of the green concrete, the mass loss rate is reduced, and the frost resistance of the green concrete is improved. However, if only the phenyl polyacrylate or the silicon-based polyacrylate is used, the mass loss rate of the green concrete obtained is not significantly reduced, and the improvement of the frost resistance is weak. The higher the amount of phenyl polyacrylate and silicon-based polyacrylate used, the more the mass loss rate of the green concrete obtained is reduced, indicating that the frost resistance is better. In the preparation of the phenyl polyacrylate, hydroxyethyl methacrylate can also be added. The phenyl polyacrylate is prepared by the reaction of hydroxyethyl methacrylate, butyl methacrylate and 2-phenylethyl methacrylate, and then the silicon-based polyacrylate and the powder and aggregate are used to prepare the green concrete. The mass loss rate of the green concrete obtained is further reduced, and the frost resistance is further improved.

[0102] The connected porosity of the green concrete prepared in Examples 1-5 and Comparative Examples 1-3 is tested. The green concrete sample is soaked in water for 24 hours to fully saturate the water, then the green concrete sample is taken out of the water, the surface water is wiped off, and the wet weight is measured. Next, the green concrete sample is dried to constant weight, and the dry weight is measured again. The connected porosity is calculated according to the formula: connected porosity = 1 - (wet weight - dry weight) / (volume of sample x density of water) x 100%. The connected porosity of the green concrete prepared in Examples 1-5 and Comparative Examples 1-3 in the application is as follows: Figure 4The cement and fly ash are mixed into powder, then the water-based solution is added for mixing, then the pre-soaked aggregate is added, and the mixture is stirred and mixed, and then poured into a mold for setting, and finally treated in a dealkalization solution and dried to obtain the green concrete, the green concrete obtained by the application has good connected porosity; In the preparation of the green concrete, polyacrylate can also be added, which is used together with the powder and aggregate to prepare the green concrete, the polyacrylate includes phenyl polyacrylate and silicon-based polyacrylate, the phenyl polyacrylate is prepared by reacting butyl methacrylate and 2-phenylethyl methacrylate, and the silicon-based polyacrylate is prepared by reacting butyl methacrylate and triisopropyl silyl acrylate, it is found that the use of phenyl polyacrylate and silicon-based polyacrylate together in the preparation of the green concrete improves the connected porosity of the green concrete, but if only phenyl polyacrylate or silicon-based polyacrylate is used, the improvement of the connected porosity of the green concrete is not significant; the higher the amount of phenyl polyacrylate and silicon-based polyacrylate used, the higher the connected porosity of the green concrete obtained; in the preparation of phenyl polyacrylate, hydroxyethyl methacrylate can also be added, and phenyl polyacrylate is prepared by the reaction of hydroxyethyl methacrylate, butyl methacrylate and 2-phenylethyl methacrylate, and then used together with silicon-based polyacrylate, powder and aggregate to prepare the green concrete, and the connected porosity of the green concrete is further improved.

[0103] The above-described embodiments and / or implementations are merely used to illustrate the preferred embodiments and / or implementations of the present application, and are not intended to limit the embodiments of the present application in any form, and any person skilled in the art can make some changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the present application, but should be considered as the same technology or embodiment as the present application.

[0104] The principles and implementations of the present application are described by using specific examples herein, and the above example descriptions are only used to help understand the method and core idea of the present application. The above description is only a preferred embodiment of the present application, and it should be pointed out that due to the limitation of language expression, there are infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be considered as the protection scope of the present application.

Claims

1. A method for preparing plant-based concrete, comprising: The powder and aqueous solution are mixed, then aggregate is added, and the mixture is molded to obtain planted concrete. The amount of fly ash used is 5-15 wt% of cement, the particle size of the aggregate is 20-30 mm, and the amount of aggregate used is 400-600 wt% of cement. The aqueous solution is a polyacrylate emulsion. The polyacrylate emulsion includes phenyl polyacrylate emulsion and silicone polyacrylate emulsion. The phenyl polyacrylate emulsion and silicone polyacrylate emulsion are mixed in a volume ratio of 1:0.1-10. The monomers in the preparation of the phenyl polyacrylate emulsion include butyl methacrylate and 2-phenylethyl methacrylate. The monomers in the preparation of the silicone polyacrylate emulsion include butyl methacrylate and triisopropylsilyl acrylate.

2. A type of bio-concrete, comprising: Powder and aggregate, the powder includes cement and fly ash, the amount of fly ash used is 5-15 wt% of cement, the particle size of the aggregate is 20-30 mm, and the amount of aggregate used is 400-600 wt% of cement; The planted concrete also contains polyacrylate materials, including phenyl polyacrylate and silicone polyacrylate; the monomers in the preparation of the phenyl polyacrylate emulsion include butyl methacrylate and 2-phenylethyl methacrylate; the monomers in the preparation of the silicone polyacrylate emulsion include butyl methacrylate and triisopropylsilyl acrylate.

3. The type of plant-based concrete according to claim 2, characterized in that: The aggregate includes crushed stone or pebbles, with crushed stone being formed by crushing and screening natural rocks, and pebbles being formed by natural weathering and water transport; or, the aggregate is used after being fully pre-soaked in water.

4. An ecological seawall, comprising: The vegetation concrete and cladding material of claim 2, which are filled with a porous filler material.

5. An ecological seawall according to claim 4, characterized in that: The covering material includes garden soil, peat moss, vermiculite, organic fertilizer, ferrous sulfate, and potassium dihydrogen phosphate.

6. An ecological seawall according to claim 4, characterized in that: The pore-filling material includes garden soil, peat moss, organic fertilizer, ferrous sulfate, and potassium dihydrogen phosphate.

7. A method for planting vegetation, including: Plant vegetation on the ecological seawall as described in claim 6.

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