阅读说明：本技术 一种环保型粘土固化剂及其制备方法和使用方法 (A kind of environment-friendlysticky sticky soil consolidator and preparation method thereof and application method ) 是由 陈正年 刘云 魏汝庆 丁晨晟 叶欣鑫 程镕时 于 2019-08-21 设计创作，主要内容包括：本发明公开了一种环保型粘土固化剂及其制备方法和使用方法,粘土固化剂包括以下质量组份的原料：植物油10~50份,不饱脂肪酸钾盐10~30份,扩散剂5~20份,金属阳离子硫酸盐或盐酸盐0.01~0.5份,共聚丙烯酸钠10~50份,pH值缓冲液1~20份。本发明提供的固化剂渗透性、扩散性、稳定性和环保性好,应用于粘土强化时,所得固化土既可满足路基底层施工要求,也可满足路基防水层施工要求,可大大节省工程建设成本,提高施工质量,加快施工进度。(The invention discloses a kind of environment-friendlysticky sticky soil consolidator and preparation method thereof and application methods, clay hardening agent includes the raw material of following quality component: 10 ~ 50 parts of vegetable oil, 10 ~ 30 parts of insatiable hunger fatty acid potassium salt, 5 ~ 20 parts of diffusant, metal cation sulfate or 0.01 ~ 0.5 part of hydrochloride, 10 ~ 50 parts of co-polypropylene acid sodium, 1 ~ 20 part of pH value buffer.Curing agent permeability, diffusivity, stability and the feature of environmental protection provided by the invention are good, and when being applied to clay reinforcing, gained solidified earth can both meet roadbed bottom construction requirement, roadbed construction of waterproof layer requirement can also be met, engineering construction cost can be greatlyd save, construction quality is improved, accelerates construction progress.)

1. a kind of environment-friendlysticky sticky soil consolidator, which is characterized in that the raw material including following quality component:

10 ~ 50 parts of vegetable oil；

10 ~ 30 parts of insatiable hunger fatty acid potassium salt；

5 ~ 20 parts of diffusant；

Metal cation sulfate or 0.01 ~ 0.5 part of hydrochloride；

10 ~ 50 parts of co-polypropylene acid sodium；

1 ~ 20 part of pH value buffer.

2. environment-friendlysticky sticky soil consolidator according to claim 1, which is characterized in that the vegetable oil includes that iodine number is 130 Above non-consumption drying oil, the vegetable oil include one of tung oil, Chinese catalpa oil, linseed oil or a variety of.

3. environment-friendlysticky sticky soil consolidator according to claim 1, which is characterized in that the unsaturated fat acid potassium salt includes Unsaturated organic linear carboxylic acid potassium salt, the unsaturated fat acid potassium salt include potassium oleate, linoleic acid potassium, in potassium ricinoleate It is one or more of.

4. environment-friendlysticky sticky soil consolidator according to claim 1, which is characterized in that the diffusant includes non-ionic surface The composite type capillary agent of activating agent and zwitterionic surfactant composition.

5. environment-friendlysticky sticky soil consolidator according to claim 1, which is characterized in that the metal cation sulfate or salt Hydrochlorate includes Al₂(SO₄)₃、Fe₂(SO₄)₃、AlCl₃、FeCl₃One of or it is a variety of.

6. environment-friendlysticky sticky soil consolidator according to claim 1, which is characterized in that the co-polypropylene acid sodium is acrylic acid After butadiene 3:7 copolymerization in molar ratio, gained oligomer is neutralized with NaOH, relative molecular mass is 5000 ~ 10000.

7. a kind of preparation method of environment-friendlysticky sticky soil consolidator, which comprises the following steps:

It is mixed and stirred for pH buffer and co-polypropylene acid sodium to obtain component A by mass component；

Diffusant, unsaturated fat acid potassium salt and vegetable oil are mixed by mass component, heats and stirs evenly, gold is then added dropwise Belong to cation sulfate or HCI solution, stirring to obtain component B；

Component A is added dropwise in component B, constant temperature is kept, stirs evenly and can be obtained clay hardening agent.

8. the preparation method of environment-friendlysticky sticky soil consolidator according to claim 7, which is characterized in that the system of the component B Temperature when standby temperature and component A are added dropwise to component B is 50 ± 5 DEG C；The metal cation sulfate or hydrochloride are molten The mass concentration of liquid is 20%.

9. a kind of application method of environment-friendlysticky sticky soil consolidator, which is characterized in that be applied to clay hardening, comprising the following steps:

By quick lime and clay mix, curing 3 ~ 5 days is stacked under natural conditions, obtains mellow soil；

Cement, clay hardening agent and the mellow soil for crossing mesh screen are stirred and evenly mixed, mixture moisture content is 10 ~ 20% after controlling mix, booth Roller-compaction is spread, controls its compacted density in 1.5 ~ 2.0g/cm³；

It is conserved 6 days after compaction moulding, high-intensitive, hydrophobic type solidified earth can be obtained.

10. the application method of environment-friendlysticky sticky soil consolidator according to claim 9, which is characterized in that the clay, raw stone Ash, cement and the mass component of clay hardening agent are as follows:

1000 ~ 2000 parts of clay；

10~60 parts of quick lime；

30~100 parts of cement；

0.1~1.0 part of clay hardening agent.

Technical field

The invention belongs to curing agent technology fields, and in particular to a kind of environment-friendlysticky sticky soil consolidator and preparation method thereof and make Use method.

Background technique

The hygroscopic expansion of clay, is gelatinized, intensity declines rapidly.In road construction, since the water of clay is stablized Poor, the roadbed of the laying intensity wretched insufficiency after immersion of property, causes road surface to collapse or occur apparent sedimentation phenomenon, construction quality It cannot be guaranteed.Such case is encountered, the hard materials such as sand, stone, cement is often required to use and it reinforce even directly Concrete is used instead to be replaced.With the increase of all kinds of engineering construction amounts, construct required sand, stone, cement are more and more, and This has both aggravated the cost of construction, has also aggravated to be unfavorable for sustainable development to the burden of natural environment.

Soil-solidified-agent is divided into Organic Soils earth curing agent, inorganic firming agent for soil, ionic species according to its chemical composition Soil-solidified-agent and biological enzyme firming agent for soil.The essence of soil-solidified-agent curing soil is by occurring between soil particle A series of physical chemical reaction, improves the contact surface between soil particle, the intergranular connection structure of reinforced soil.Variety classes Soil-solidified-agent difference be mainly chemical component difference so that the reaction of reinforced soil particle is different.Traditional soil Earth curing agent permeability and poor diffusivity, after such curing agent, hydrophobicity and the water-resistance for solidifying clay are undesirable, cause Strength reduction after clay water suction.In addition, the poor storage stability of conventional soil curing agent, Yi Fasheng split-phase is rotten, and it is certain at Divide bio-refractory, the feature of environmental protection is poor.

Summary of the invention

It is an object of the invention to overcome deficiency in the prior art, a kind of environment-friendlysticky sticky soil consolidator and its preparation are provided Method and application method solve the problems, such as that conventional curing agents storage stability, permeability, diffusivity and the feature of environmental protection are poor.

The present invention provides the following technical solutions:

A kind of environment-friendlysticky sticky soil consolidator, the raw material including following quality component:

Preferably, the vegetable oil includes the non-consumption drying oil that iodine number is 130 or more, and the vegetable oil includes paulownia One of oil, Chinese catalpa oil, linseed oil are a variety of.

Preferably, double containing one or more unsaturated carbon-to-carbons on the organic molecule chain of the unsaturated fat acid potassium salt Key, including unsaturated organic linear carboxylic acid potassium salt, the unsaturated fat acid potassium salt include potassium oleate, linoleic acid potassium, castor oil One or more of sour potassium.

Preferably, the diffusant include nonionic surfactant and zwitterionic surfactant composition it is compound Bleeding agent；Nonionic surfactant includes octyl phenol polyoxyethylene ether -10 (OP-10), sorbitan monooleate (department Class -80), one of polyoxyethylene 20 sorbitan monooleate (soil temperature -81) or a variety of；Zwitterionic surfactant packet Include one of alkyl dimethyl sulfoethyl glycine betaine and alkyl dimethyl azochlorosulfonate propyl lycine.

Preferably, the metal cation sulfate or hydrochloride include Al₂(SO₄)₃、Fe₂(SO₄)₃、AlCl₃、FeCl₃In It is one or more.A small amount of sulfate or hydrochloride is added, contained by Al³⁺、Fe³⁺Adsorption by clay negative electrical charge can be effectively neutralized, The electrostatic repulsion forces between clay clay are reduced, the compactness that clay rolls can be improved, effectively improve the intensity for solidifying clay.

Preferably, after the co-polypropylene acid sodium is the 3:7 copolymerization in molar ratio of acrylic acid and butadiene, and in NaOH and institute Oligomer is obtained, relative molecular mass is 5000~10000, and water-soluble, diffusivity and stability are preferable, easy biochemical degradation, and fourth Unreacted double bond may participate in the polymerization reaction of double bond on vegetable oil and unsaturated fatty acid salt molecule in diene units, is formed and is divided The sub- higher polymer mesh structure of relative mass improves solidification clay intensity.In addition, propylene on co-polypropylene acid sodium molecule chain Sour sodium unit accounts for about 30%, the Ca in carboxylate anion and clay²⁺、Mg²⁺Deng combination, co-polypropylene acid sodium molecule chain has Similar reinforcing bar acts in concrete, strengthens clay；And clay hydrophobicity can be improved in butadiene unit, and clay is effectively prevent to inhale Water expansion is even gelatinized.

Preferably, pH value buffer includes the aqueous solution being formulated by disodium hydrogen phosphate and sodium dihydrogen phosphate, quality Concentration is 10%, pH=6.5~7.5.For the clay more containing humus, in order to avoid acidity is to unsaturated fatty acid potassium The diffusible negative effect of salt selects phosphate pH value buffer system, on the one hand can keep clay pH stable, on the other hand Phosphate and cement act on, and can slow down cement aquation, improve the intensity for solidifying clay.

A kind of preparation method of environment-friendlysticky sticky soil consolidator, comprising the following steps:

It is mixed and stirred for pH buffer and co-polypropylene acid sodium to obtain component A by mass component；

Diffusant, unsaturated fat acid potassium salt and vegetable oil are mixed by mass component, heats and stirs evenly, then drip Add metal cation sulfate or HCI solution, stirring to obtain component B；

Component A is added dropwise in component B, constant temperature is kept, stirs evenly and can be obtained clay hardening agent.

Preferably, the preparation temperature of the component B and the temperature of component A and component B mixing are 50 ± 5 DEG C, temperature Too low then mixing is uneven, and heat polymerization easily occurs for the unsaturated double-bond in excessively high curing agent on organic component strand, leads Cause curing agent failure；The mass concentration of the metal cation sulfate or HCI solution is 20%.

A kind of application method of environment-friendlysticky sticky soil consolidator is applied to clay hardening, comprising the following steps:

By quick lime and clay mix, curing 3~5 days is stacked under natural conditions, obtains mellow soil；

By cement, clay hardening agent and cross mesh screen mellow soil stir and evenly mix, control mix after mixture moisture content be 10~ 20%, decking and rolling molding controls its compacted density in 1.5~2.0g/cm³；

It is conserved 6 days after compaction moulding, high-intensitive, hydrophobic type solidified earth can be obtained.

Preferably, the crossed mesh screen of mellow soil is 2.5 mesh.It is excessive to cross mesh size, since curing agent is spread inside big partial size clay It is insufficient, easily cause the intensity of solidified earth and hydrophobicity poor；It is too small to cross mesh size, clay utilization rate decline, cost improves.

Preferably, the temperature condition of clay hardening is not less than 10 DEG C, the thin clay of the clay (partial size is less than 0.01mm) Ingredient is higher than 30%.

Preferably, the clay, quick lime, cement and the mass component of clay hardening agent are as follows:

Preferably, the cement is one or both of non-early-strength P.C42.5, P.C52.5 portland cement, is prevented Shorten the making safety operation time because cement gel occurs too early.

Compared with prior art, the beneficial effects of the present invention are:

(1) clay hardening agent provided by the invention, vegetable oil and unsaturated fat acid potassium salt used, strand by one with Upper unsaturated double-bond forms derivative of fatty acid, unsaturated double-bond activity with higher in molecular structure, in clay Al³⁺Deng work It is copolymerized under, forms the high molecular material of flexible network structure, solidification clay is hydrophobic simultaneously improving, and plays Enhancing and toughening effect improve the compression strength for solidifying clay.

(2) there is excellent biology can drop for clay hardening agent provided by the invention, used vegetable oil and cross-linking products Xie Xing；The water solubility and diffusivity of unsaturated fat acid potassium salt are good, have good degradability, wherein potassium element is as clay Nutrient useful supplement, can effectively prevent salinization of soil of the unsaturated fat acid sodium-salt to clay, and the feature of environmental protection is strong.

(3) clay hardening agent provided by the invention, used co-polypropylene acid sodium, water-soluble and diffusivity is preferable, storage It is good to deposit stability, while bio-degradable.

(4) clay hardening agent provided by the invention is used, the clay after solidification has good hydrophobicity, gas permeability, i.e., Polar water molecules do not enter inside solidification clay, but O₂、N₂、CO₂Equal nonpolar molecules can free in and out；The 1~10% of addition Strong basicity, but CO in air is presented in cement and quick lime₂Under the action of, become the ingredients such as neutral calcium carbonate, calcium silicates, and The additive amount of curing agent is only the 0.1%~0.01% of clay, and can be biodegradable, on clay function substantially without influence, is glued Soil such as need to be multiplexed, can by bank up, dry and nature microorganism degradation can restore substantially clay original seed plant etc. functions.

(5) clay hardening agent provided by the invention is used, there is preferable salt tolerance and acidity buffer capacity, be not only applicable in In high clay, high humus riverway sludge, the solidification of alkali clay with high salt is applied also for, it can also be used to which the soils such as saline and alkaline, sand ground are protected Water harnessing；Clay intensity after solidification is high, and intensity can reach 2MPa or more, fully meet all kinds of road surfaces and want to subgrade strength It asks.

(6) application method of clay hardening agent provided by the invention, the construction period is short, only needs to conserve 6 days after compacting i.e. Can mat formation the surface layer in road or place；In addition, construction simple process, easy to operate, and after clay curing is completed at scene, control Water content, small-sized integrated mixing station completes the mix of cement and curing agent at the scene, can also scene on the spot mix, mat formation, press General construction requirement, rolls and finishes.

Specific embodiment

The following examples are only intended to illustrate the technical solution of the present invention more clearly, and cannot be used as a limitation the limitation present invention Protection scope.

Material prepares

Tung oil: the production of Gushi of Henan county An Shan tung oil factory, 99%；

Linseed oil: the production of Jiangxi Ji'an Hai Rui natural plants Co., Ltd, technical grade；

Chinese catalpa oil: the production of Wuhan Neng Ren medication chemistry Co., Ltd, 99%；

Potassium oleate: the production of Hubei Xin Runde Chemical Co., Ltd., 99%；

Linoleic acid potassium: the happy Chemical Co., Ltd.'s production of Hunan Jin Jin, 99%；

Potassium ricinoleate: the production of Qingdao Rui Nuo Chemical Co., Ltd., 90%；

P-10, soil temperature -81, Span 80: Jiangsu Hai'an petrochemical plant, technical grade；

Dodecyl dimethyl sulfoethyl glycine betaine, octadecyldimethyl sulfoethyl glycine betaine, dodecyl dimethyl Azochlorosulfonate propyl lycine, octadecyldimethyl azochlorosulfonate propyl lycine: Qixia Hill In Nanjing printing and dyeing assistant factory, technical grade；

Aluminum sulfate, aluminium chloride, iron chloride: Chinese medicines group, chemistry are pure；

Quick lime: the production of Suzhou Chang Kungai industry Co., Ltd, powdery, technical grade；

Cement A: the non-early-strength P.C42.5 of silicate, conch cement company；

Cement B: the non-early-strength P.C52.5 of silicate, conch cement company；

Clay A: the proposed construction of hydropower scene spoir sample of Lianyun Harbour Sheng Hong petrochemical industry, (partial size is less than the thin clay of clay 0.01mm) ingredient is 42%；

Clay B: the quasi- solidification road scene soil sampling product in Hangzhou village, Fuyang area, (partial size is less than the thin clay of clay 0.01mm) ingredient is 57%；

Co-polypropylene acid sodium: self-control, 30%, acrylic acid neutralizes gained with NaOH with after butadiene 3:7 copolymerization in molar ratio Oligomer, relative molecular mass are 5000~10000；

PH value buffer: 10% aqueous solution prepared by sodium dihydrogen phosphate and disodium hydrogen phosphate.