阅读说明：本技术 一种浓缩乳化沥青及其制备方法和使用方法 (A kind of condensed emulsified pitch and preparation method thereof and application method ) 是由 李启仲 祁聪 孙美丽 栾波 牟庆平 于 2019-09-05 设计创作，主要内容包括：本发明提供了一种浓缩乳化沥青,由质量比为(25～35)：(75～65)的皂液和沥青组成：所述皂液包括：乳化剂0.5wt％～0.85wt％；余量的水；所述乳化剂为中裂型阳离子沥青乳化剂。与现有技术相比,本发明提供的浓缩乳化沥青采用特定含量组分,实现较好的相互作用,得到的浓缩乳化沥青的沥青固含量高,体系稳定性好,方便长距离运输,且在生产时能节能降耗,降低成本；同时在使用时添加特定稀释剂进行稀释至一定固含量即可正常使用,稀释后的乳化沥青指标符合JTG_F40-2004《公路沥青路面施工技术规范》普通乳化沥青技术要求。(The present invention provides a kind of condensed emulsified pitches, and be (25~35) by mass ratio: the soap lye and pitch of (75~65) form: the soap lye includes: emulsifier 0.5wt%~0.85wt%；The water of surplus；The emulsifier splits type cation asphalt emulgent in being.Compared with prior art, condensed emulsified pitch provided by the invention uses certain content component, realizes preferable interaction, the pitch solid content of obtained condensed emulsified pitch is high, and system stability is good, facilitates long-distance transportation, and can be energy-saving in production, reduce cost；Add when in use simultaneously specific diluent be diluted to certain solid content can normal use, the emulsified asphalt index after dilution meets JTG_F40-2004 " standard specification for construction and acceptance of highway asphalt pavement " common emulsified asphalt technical requirements.)

1. a kind of condensed emulsified pitch, be (25~35) by mass ratio: the soap lye and pitch of (75~65) form: the soap lye packet It includes:

Emulsifier 0.5wt%~0.85wt%；

The water of surplus；The emulsifier splits type cation asphalt emulgent in being.

2. condensed emulsified pitch according to claim 1, which is characterized in that the pitch is bi tumenf orr oad；It is described 25 DEG C of needle penetrations of pitch are 50dmm~100dmm, and softening point is 40 DEG C~55 DEG C, 10 DEG C of ductility > 100cm.

3. a kind of preparation method of the described in any item condensed emulsified pitches of claim 1~2, comprising the following steps:

A) emulsifier is soluble in water, obtain soap lye；

B) it after heating pitch, is emulsified with the obtained soap lye of step a), obtains condensed emulsified pitch.

4. preparation method according to claim 3, which is characterized in that the temperature of water described in step a) is 40 DEG C~70 ℃。

5. preparation method according to claim 3, which is characterized in that the temperature of heating described in step b) be 100 DEG C~ 200℃。

6. preparation method according to claim 3, which is characterized in that the temperature of soap lye described in step b) is 40 DEG C~70 ℃。

7. preparation method according to claim 3, which is characterized in that emulsification described in step b) is in colloid mill It carries out；The time of the emulsification is 0.5min~5min.

8. a kind of application method of condensed emulsified pitch, comprising the following steps:

Use the dilution described in any item condensed emulsified pitches of dilution agent claim 1~2 to pitch solid content for 50%~ It is used after 60%；

The diluent includes:

Emulsifier 0.35wt%~0.67wt%；

0~0.23wt% of stabilizer；

The water of surplus；The emulsifier splits type cation asphalt emulgent in being.

9. application method according to claim 8, which is characterized in that the stabilizer is soluble easily in water and can exothermic nothing Machine object.

The present invention relates to asphalt production technical fields, are to be related to a kind of condensed emulsified pitch and its preparation more specifically Method and application method.

The complex mixture that asphalt is made of saturated hydrocarbons, aromatic hydrocarbon, colloid, asphalitine etc. is led in road engineering Domain and building engineering field are all widely used, and with the continuous development that highway in China is built, asphalt dosage increases year by year Add, asphalt plays irreplaceable role in China's infrastructure.

As road surface load is continuously increased, weather conditions are severe year by year, environmental protection pressure is increasing, in the base of asphalt Occur a series of asphalt spin-offs on plinth in succession, including modified pitch, emulsified asphalt, hydraulic asphalt, airport pitch, anti- Bituminous grout etc., wherein emulsified asphalt has the characteristics that environmentally protective, energy saving, construction is simple, function admirable, has biggish application Space.

Emulsified asphalt is pitch and emulsifier under certain process acts, generates the liquid bitumen of oil-in-water or Water-In-Oil. Emulsified asphalt is by mechanical stirring and chemically stable method (emulsification), to be diffused into the road asphalt of usual applied at elevated temperature It is liquefied as that viscosity under room temperature is very low, a kind of mobility pavement construction material well in water, it is cold again in pavement construction, road In terms of raw, maintenance of surface and there is good application in water-repellent paint field.

Due to pitch with water be it is incompatible, pitch is that a kind of thermodynamics is unstable by the dispersion for emulsifying formation in water Determine state, external condition and self property can all lead to the layering of pitch phase and water phase, but in order to guarantee the normal of emulsified asphalt It uses, it is necessary to assure be able to maintain prolonged homogeneously dispersed state.

And formula is settled according to Stokes:

W is that pitch particle sedimentation hastens, and ρ S is grain density, and ρ is the density of water, and μ is viscosity, and r is particle radius, and g is Acceleration of gravity.

Emulsified asphalt viscosity is bigger, and pitch particle sinking speed is slower, and emulsified asphalt system is more stable.In general emulsification In pitch, pitch solid content is higher, and emulsified asphalt viscosity is bigger, JTG_F40-2004 " standard specification for construction and acceptance of highway asphalt pavement " In require spray-type emulsified asphalt pitch solid content > 50%, production high solids content emulsified asphalt (pitch solid content > 68%) is no It only can be improved the stability of entire emulsified asphalt system, convenient transportation, and can be energy-saving, it has a clear superiority.

In view of this, the purpose of the present invention is to provide a kind of condensed emulsified pitch and preparation method thereof and application method, The pitch solid content of condensed emulsified pitch provided by the invention is high, and system stability is good, facilitates long-distance transportation, and in production Can be energy-saving, reduce cost；Be diluted can normal use to certain solid content for addition diluent when in use simultaneously.

The present invention provides a kind of condensed emulsified pitches, are (25~35): the soap lye and pitch of (75~65) by mass ratio Form: the soap lye includes:

Emulsifier 0.5wt%~0.85wt%；

The water of surplus；The emulsifier splits type cation asphalt emulgent in being.

Preferably, the pitch is bi tumenf orr oad；25 DEG C of needle penetrations of the pitch are 50dmm~100dmm, soft Changing point is 40 DEG C~55 DEG C, 10 DEG C of ductility > 100cm.

The present invention also provides a kind of preparation methods of condensed emulsified pitch described in above-mentioned technical proposal, including following step It is rapid:

A) emulsifier is soluble in water, obtain soap lye；

B) it after heating pitch, is emulsified with the obtained soap lye of step a), obtains condensed emulsified pitch.

Preferably, the temperature of water described in step a) is 40 DEG C~70 DEG C.

Preferably, the temperature of heating described in step b) is 100 DEG C~200 DEG C.

Preferably, the temperature of soap lye described in step b) is 40 DEG C~70 DEG C.

Preferably, emulsification described in step b) carries out in colloid mill；The time of the emulsification be 0.5min~ 5min。

The present invention also provides a kind of application methods of condensed emulsified pitch, comprising the following steps:

Use condensed emulsified pitch described in dilution dilution agent above-mentioned technical proposal to pitch solid content for 50%~60% After use；

The diluent includes:

Emulsifier 0.35wt%~0.67wt%；

0~0.23wt% of stabilizer；

The water of surplus；The emulsifier splits type cation asphalt emulgent in being.

Preferably, the stabilizer is soluble easily in water and can exothermic inorganic matter.

The present invention provides a kind of condensed emulsified pitches, are (25~35): the soap lye and pitch of (75~65) by mass ratio Composition: the soap lye includes: emulsifier 0.5wt%~0.85wt%；The water of surplus；The emulsifier splits the drip of type cation in being Green emulsifier.Compared with prior art, condensed emulsified pitch provided by the invention uses certain content component, realizes preferable phase The pitch solid content of interaction, obtained condensed emulsified pitch is high, and system stability is good, facilitates long-distance transportation, and producing When can it is energy-saving, reduce cost；Adding that specific diluent is diluted when in use simultaneously can be normal to certain solid content It uses, the emulsified asphalt index after dilution meets JTG_F40-2004 " standard specification for construction and acceptance of highway asphalt pavement " commonly emulsification drip Green technical requirements.

In addition, preparation method simple process provided by the invention, easy controlled operation, are suitble to large-scale production and application.

Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair The range of bright protection.

The present invention provides a kind of condensed emulsified pitches, are (25~35): the soap lye and pitch of (75~65) by mass ratio Form: the soap lye includes:

Emulsifier 0.5wt%~0.85wt%；

The water of surplus；The emulsifier splits type cation asphalt emulgent in being.

In the present invention, the condensed emulsified pitch is (25~35): the soap lye and pitch group of (75~65) by mass ratio At preferably (28~32): (72~68), more preferably 31:69；To make the drip of the subsequent condensed emulsified pitch being prepared Green solid content obtains height 68% or more in higher level, the pitch solid content of the condensed emulsified pitch as described in preferred embodiment Solid content emulsified asphalt.

In the present invention, the soap lye includes:

Emulsifier 0.5wt%~0.85wt%；

The water of surplus.

In the present invention, the emulsifier be in split type cation asphalt emulgent；In the preferred embodiment of the invention, The emulsifier splits emulsifier in the Kang Zewei 802 for Tianjin Conservation Chemical Technology Co., Ltd.'s production.The present invention uses specific kind The emulsifier of class, de-emulsification speed are suitble to, and are conducive to obtain the condensed emulsified pitch that pitch solid content is high, system stability is good.In In the present invention, the soap lye includes the emulsifier of 0.5wt%~0.85wt%, preferably 0.67wt%.

The present invention is not particularly limited the water, using deionized water well known to those skilled in the art.

In the present invention, the pitch is preferably bi tumenf orr oad；It is refined using petroleum well known to those skilled in the art The bi tumenf orr oad of factory's production.In the present invention, 25 DEG C of needle penetrations of the pitch are preferably 50dmm~100dmm, More preferably 69dmm；The softening point of the pitch is preferably 40 DEG C~55 DEG C, more preferably 47 DEG C；10 DEG C of the pitch prolong Spend > 100cm.In the preferred embodiment of the invention, the pitch is 70#A grades of pitches of extra large rhythm.

Condensed emulsified pitch provided by the invention uses certain content component, realizes preferable interaction, what is obtained is dense The pitch solid content of contracting emulsified asphalt is high, and system stability is good, and it is poor to be able to solve emulsified asphalt long-distance transportation system stability The problem of, and can be energy-saving in production, reduce production cost.

The present invention also provides a kind of preparation methods of condensed emulsified pitch described in above-mentioned technical proposal, including following step It is rapid:

A) emulsifier is soluble in water, obtain soap lye；

B) it after heating pitch, is emulsified with the obtained soap lye of step a), obtains condensed emulsified pitch.

The present invention is soluble in water by emulsifier first, obtains soap lye.In the present invention, the emulsifier and water and above-mentioned skill Identical described in art scheme, details are not described herein.

In the present invention, the temperature of the water is preferably 40 DEG C~70 DEG C, more preferably 60 DEG C；To guarantee subsequent soap lye Also meet above-mentioned temperature, without further heat treatment.

After obtaining the soap lye, after the present invention heats pitch, is emulsified with obtained soap lye, obtain condensed emulsified drip It is green.In the present invention, the pitch with it is as described in the above technical scheme identical, details are not described herein.

In the present invention, the temperature of the heating is preferably 100 DEG C~200 DEG C, more preferably 120 DEG C~150 DEG C.

In the present invention, the temperature of the soap lye is preferably 40 DEG C~70 DEG C, more preferably 60 DEG C.

In the present invention, the emulsification carries out preferably in colloid mill；The colloid mill can recycle reconciliation soap Liquid and pitch, to obtain the product of stable system.In the present invention, the time of the emulsification is preferably 0.5min~5min, More preferably 1min~2min.

Preparation method simple process provided by the invention, easy controlled operation are suitble to large-scale production and application.

The present invention also provides a kind of application methods of condensed emulsified pitch, comprising the following steps:

Use condensed emulsified pitch described in dilution dilution agent above-mentioned technical proposal to pitch solid content for 50%~60% After use；

The diluent includes:

Emulsifier 0.35wt%~0.67wt%；

0~0.23wt% of stabilizer；

The water of surplus；The emulsifier splits type cation asphalt emulgent in being.

In the present invention, the diluent includes:

Emulsifier 0.35wt%~0.67wt%；

0~0.23wt% of stabilizer；

The water of surplus；In a preferred embodiment of the invention, the diluent includes:

Emulsifier 0.67wt%；

Stabilizer 0wt%；

The water of surplus；

In presently preferred embodiment, the diluent includes:

Emulsifier 0.35wt%；

Stabilizer 0.23wt%；

The water of surplus.

The present invention is not particularly limited the preparation method of the diluent, using it is well known to those skilled in the art will be newborn The technical solution that agent, stabilizer are uniformly mixed with water.

In the present invention, the emulsifier be in split type cation asphalt emulgent；In the preferred embodiment of the invention, The emulsifier splits emulsifier in the Kang Zewei 802 for Tianjin Conservation Chemical Technology Co., Ltd.'s production.The present invention uses specific kind The emulsifier of class, after being advantageously implemented condensed emulsified bitumen dilution, product indices meet or better than JTG_F40-2004 " public affairs Road Asphalt Pavement Construction Technique specification " common emulsified asphalt index request in standard.

In the present invention, the stabilizer is preferably soluble easily in water and the exothermic inorganic matter of meeting, more preferably CaCl₂.In In the present invention, the CaCl₂For white or canescence, graininess.

Condensed emulsified pitch provided by the invention adds above-mentioned specific diluent when in use and is diluted, until centainly containing admittedly Measure (50%~60%) can normal use, the emulsified asphalt index after dilution meet or better than JTG_F40-2004 " highway drip Green pavement construction technical specification " common emulsified asphalt technical requirements.

The present invention provides a kind of condensed emulsified pitches, are (25~35): the soap lye and pitch of (75~65) by mass ratio Composition: the soap lye includes: emulsifier 0.5wt%~0.85wt%；The water of surplus；The emulsifier splits the drip of type cation in being Green emulsifier.Compared with prior art, condensed emulsified pitch provided by the invention uses certain content component, realizes preferable phase The pitch solid content of interaction, obtained condensed emulsified pitch is high, and system stability is good, facilitates long-distance transportation, and producing When can it is energy-saving, reduce cost；Adding that specific diluent is diluted when in use simultaneously can be normal to certain solid content It uses, the emulsified asphalt index after dilution meets JTG_F40-2004 " standard specification for construction and acceptance of highway asphalt pavement " commonly emulsification drip Green technical requirements.

In addition, preparation method simple process provided by the invention, easy controlled operation, are suitble to large-scale production and application.

In order to further illustrate the present invention, it is described in detail below by following embodiment.Following embodiment of the present invention Emulsifier used is to split emulsifier in Kang Zewei 802；Pitch used is 70#A grades of pitches of extra large rhythm, and 25 DEG C of needles of the pitch enter Degree is 69dmm, and softening point is 47 DEG C, 10 DEG C of ductility > 100cm.

Embodiment 1

(1) emulsifier is dissolved in 60 DEG C of water according to the additive amount of 0.67wt%, obtains soap lye.

(2) pitch is heated to 140 DEG C, then the soap lye (60 DEG C) that step (1) is obtained and above-mentioned pitch are according to soap lye: drip Blueness=31%:69% proportion is emulsified in colloid mill, and the time of the emulsification is 1min, obtains condensed emulsified pitch.

The properties for the emulsified asphalt that the embodiment of the present invention 1 provides are tested, as a result ginseng is shown in Table 1.

The properties data for the emulsified asphalt that 1 embodiment of the present invention 1 of table provides

As shown in Table 1, the condensed emulsified asphalt viscosity index that the embodiment of the present invention 1 provides is big, and stability is good, stores 5 days Rear stability index is without significant change.

Embodiment 2

For the condensed emulsified pitch that embodiment 1 provides, prepare two kinds of diluents respectively: additive amount is 0.67wt% Kang Ze Emulsifier is split in prestige 802 is dissolved in water prepared and diluted agent 1；Split in additive amount 0.35wt% Kang Ze prestige 802 emulsifier+ 0.23wt%CaCl₂It is dissolved in water prepared and diluted agent 2；

It is 54% that condensed emulsified pitch to the pitch solid content that two kinds of dilution dilution agent embodiments 1 provide, which is respectively adopted, point Dilution emulsified asphalt 1 and dilution emulsified asphalt 2 are not obtained.

The properties of the dilution emulsified asphalt 1 and dilutions emulsified asphalt 2 that provide the embodiment of the present invention 2 are surveyed Examination, as a result ginseng is shown in Table 2.

The properties data of dilution emulsified asphalt 1 and dilution emulsified asphalt 2 that 2 embodiment of the present invention 2 of table provides

As shown in Table 2, it is prepared by way of adding a certain amount of emulsifier and a certain amount of emulsifier and compound stabilizer After the condensed emulsified pitch that dilution provides the embodiment of the present invention 1 is diluted, emulsified asphalt index meets technology after dilution It is required that.

Comparative example 1

For the condensed emulsified pitch that embodiment 1 provides, two kinds of diluents are prepared respectively: directlying adopt water as diluent No. 3；Additive amount 0.23wt%CaCl₂It is dissolved in water prepared and diluted agent 4；

It is 54% that condensed emulsified pitch to the pitch solid content that two kinds of dilution dilution agent embodiments 1 provide, which is respectively adopted, point Dilution emulsified asphalt 3 and dilution emulsified asphalt 4 are not obtained.

The properties of the dilution emulsified asphalt 3 and dilutions emulsified asphalt 4 that provide comparative example 1 are tested, and are tied Fruit ginseng is shown in Table 3.

The properties data of dilution emulsified asphalt 3 and dilution emulsified asphalt 4 that 3 comparative example 1 of table provides

As shown in Table 3, water is directly used as dilution and by adding a certain amount of stabilizer prepared and diluted liquid to this hair After the condensed emulsified pitch that bright embodiment 1 provides is diluted, emulsified asphalt stability indicator is poor after dilution, and emulsified asphalt The middle obvious layering of appearance, stabilizing effect is poor, and index does not meet technical requirements.

Cost calculation:

The prior art produces 10 tons of emulsified asphalt that pitch solid content is 50%, needs respectively to 5 tons of pitches and 5 tons of soap lyes It is heated, if producing 10 tons per hour according to equipment, needs to produce 1 hour；And the system for using the embodiment of the present invention 1 to provide Preparation Method first produces the condensed emulsified pitch that pitch solid content is 68%, is actually needed 5 tons of pitch, 2.35 tons of soap lye；Thus may be used Know, soap lye heat energy can greatly reduce, and save the production time, improve production efficiency, finally again by this hair Application method in bright embodiment 2, by the condensed emulsified bitumen dilution to 50% solid content use.

The above description of the disclosed embodiments, enables those skilled in the art to implement or use the present invention.It is right A variety of modifications of these embodiments will be readily apparent to those skilled in the art, and as defined herein one As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein Widest scope.