CN108793877A - A kind of concrete mortar - Google Patents
A kind of concrete mortar Download PDFInfo
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- CN108793877A CN108793877A CN201810736327.3A CN201810736327A CN108793877A CN 108793877 A CN108793877 A CN 108793877A CN 201810736327 A CN201810736327 A CN 201810736327A CN 108793877 A CN108793877 A CN 108793877A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/34—Natural resins, e.g. rosin
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/36—Bituminous materials, e.g. tar, pitch
Abstract
The invention discloses a kind of concrete mortars, belong to field of mortar.The present invention is using lignite as raw material, it can be pyrolyzed under the high temperature conditions and generate tar and coke ingredient, tar can play the role of cohesive each component, coke ingredient can be under the catalytic action of nanometer iron powder, it is reacted with the hydroxy silicate in the building stones liquid in system, generate silicon carbide skeleton, play strengthening action, the toughness of promotion system, with potassium permanganate oxidation pitch fibers, enhance adsorption capacity of the pitch fibers to nano magnesia, also the absorption property for the silica that pitch fibers generate teos hydrolysis can be effectively improved, promote the early strength of strength cement-based grouting material, the strength cement-based grouting material coefficient of expansion is adjusted in magnesia, so that not easy to crack after strength cement-based grouting material solidification.The present invention solves the problems, such as at present for the easy hollowing cracking of common mortar at present, toughness and poor mechanical property.
Description
Technical field
The invention belongs to field of mortar, and in particular to a kind of concrete mortar.
Background technology
The hydraulic structures such as dam, sluice are required for flood discharge and diversion facility, such as spillway, flood discharging tunnel, drain hole, diversion
Hole etc., these flood discharge diversion facilities suffer from cavitation corrosion effect and the souring of high-velocity flow, rich in the flow of some areas
Containing silt even stone etc., can also percussion be brought to overflow and release floodwatering facility surface concrete other than souring,
The surface generation erosion of high speed flow containing sand washed away and often make concrete under percussion, causes the damage of spillwag chute,
Jeopardize the safety of building when serious.Will consume every year huge fund liquidate damage building carry out repairing and reinforcing.
In order to improve the erosion resistibility of overflow and release floodwatering facility surface, except in spillwag chute Dam Configuration Design, surface construction matter
Amount control etc. developed a variety of impact-resisting wear-resisting materials, the more anti-impact of domestic application is resistance at present both at home and abroad outside taking measures
Mill material has silica flour, iron steel sand, ore aggregate, fiber, HF anti-impacts grinding agent, epoxy etc..In hydraulic and hydroelectric engineering, silicon
Powder concrete, HF scour and abrasion resistant concretes and epoxy resin mortar are most widely used.Various scour and abrasion resistant concretes have it alone
Advantage, but also have respective deficiency, as silicon powder concrete has stronger erosion resistibility, but there are shrinkage in process of setting is big
Be also easy to produce crack, brittleness very much not shock resistance the shortcomings of；Epoxy resin mortar is chiefly used in the repairing and reinforcing on overflow surface, has by ultraviolet light shadow
Ring big, ageing resistance difference disadvantage；HF scour and abrasion resistant concrete abrasive resistances are strong, can larger amount of saving cement, but it is anti-
Impact capacity is inadequate, is not suitable for more sandstone flows.
Invention content
The technical problems to be solved by the invention：The easy hollowing cracking of mortar, toughness and poor mechanical property are commonly used for current
The problem of, a kind of concrete mortar is provided.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of concrete mortar, according to the mass fraction, including following component：50 ~ 70 parts of ordinary portland cements, 15 ~ 30 parts of quartz sands, 3 ~
6 parts of auxiliary agents, 4 ~ 10 parts of water-reducing agents, 2 ~ 5 parts of building stones liquid, which is characterized in that further include：20 ~ 40 parts of lignite processed materials, 25 ~ 40 parts
Composite modified asphalt fiber, 18 ~ 28 parts of rubber compounds.
The preparation of the lignite processed material：It takes lignite to pulverize and sieve, sieving particle ventilation is taken to protect, temperature programming to 550 ~
650 DEG C, heat preservation pyrolysis is warming up to 800 ~ 900 DEG C, and heat preservation pyrolysis is cooling, and discharging must be pyrolyzed material, according to the mass fraction, successively
30 ~ 50 parts of pyrolysis material, 8 ~ 10 parts of Petropols, 4 ~ 6 parts of β-terpene resins, 0.8 ~ 1.2 part of nanometer iron powder mixing, ventilation is taken to protect
Shield, is stirred, cooling to get lignite processed material.
The Petropols are any one in C5 hydrogenated petroleum resins, C9 hydrogenated petroleum resins.
The preparation method of the composite modified asphalt fiber, includes the following steps：
（1）According to the mass fraction, take 10 ~ 20 parts of asphalt powders, 50 ~ 60 parts of liquor potassic permanganates, 20 ~ 30 parts of silane coupling agents,
20 ~ 30 parts of ethanol solutions, 10 ~ 20 parts of ethyl orthosilicates, 10 ~ 20 parts of nano magnesias；
（2）It takes asphalt powder, high-temperature fusion to obtain melt, takes melt to carry out spinning, obtain pitch precursor, in 30 ~ 40 DEG C, take pitch
Precursor in mass ratio 1：3 ~ 5, which are added liquor potassic permanganate, is mixed, and filtering obtains filter cake, Washing of Filter Cake, vacuum refrigeration is taken to obtain
Dry cake；
（3）Take nano magnesia, silane coupling agent and ethanol solution mixing, in 40 ~ 50 DEG C, ultrasonic disperse obtains dispersion liquid, takes point
Dispersion liquid in mass ratio 5：1 ~ 2, which is added dry cake, is mixed, and ethyl orthosilicate mixing is added, obtains mixed liquid, takes mixed liquid to filter, obtains
Filter residue takes filter residue to be washed with water, and freeze-drying obtains dried object, collects dried object, and ventilation protection, high temperature carbonization is cooling, discharging,
Up to composite modified asphalt fiber.
The step（1）Or（3）In silane coupling agent be KH550, KH560, KH570 in any one.
The building stones liquid：In mass ratio 3：1 ~ 2 takes palygorskite, serpentine mixing, pulverizes and sieves, and collects sieving particle and presses matter
Measure ratio 1：3~5：2 are added glacial acetic acid, toluene mixing to get building stones liquid.
The preparation of the rubber compound：It is 6 in mass ratio：1 ~ 2 takes waste Crumb rubber and nano graphene oxide mixed milling,
It is cooling, obtain mixing materials, in mass ratio 1：3 ~ 6 take mixing materials, the mixing of salt feed liquid, ventilation protection to be stirred, be electrolysed, and filtering takes
Filter residue crushes, sieving, collects sieving particle to get rubber compound.
The salt feed liquid：In mass ratio 1：1~3：8 ~ 15 take NaCl, MgSO4, water mixing to get salt feed liquid.
The water-reducing agent：Any one in poly carboxylic acid series water reducer model JW-8, ART-M1.
The auxiliary agent：Any one in aggregate, montmorillonite powder, pearl powder.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention can be pyrolyzed generate tar and coke ingredient under the high temperature conditions using lignite as raw material, tar can with sand processed
Play the role of cohesive each component during slurry, mortar is effectively filled, in addition, coke ingredient therein can be in nanometer
It under the catalytic action of iron powder, is reacted with the hydroxy silicate in the building stones liquid in system, generates silicon carbide skeleton, can risen in system
To strengthening action, the toughness of mortar and mechanical property is made to get a promotion；
（2）The present invention is modified asphalt powder, first uses liquor potassic permanganate oxidized asphalt fiber, increases pitch fibers table
The active group in face enhances adsorption capacity of the pitch fibers to nano magnesia, in one layer of nano oxygen of pitch fibers adsorption
Change magnesium, while can also effectively improve the absorption property for the silica that pitch fibers generate teos hydrolysis, in pitch
Fiber surface re-forms silica, and silica can promote the aquation of strength cement-based grouting material, form hard silicic acid after aquation
Salt can promote the early strength of strength cement-based grouting material, on the other hand, strength cement-based grouting material tune be adjusted in magnesia hydration process
The coefficient of expansion is saved, can effectively be solved the problems, such as easy to crack after strength cement-based grouting material cures；
（3）The present invention is using waste Crumb rubber, graphene oxide as raw material, through being kneaded, electrolysis so that the disulfide bond inside rubber powder is disconnected
Split, and sulphur made to be scattered in molten salt system in the form of the metal sulfide for being insoluble in water, subsequently in water mixed process, fused salt
It can be used as pore former and be dissolved in the water and removed, abundant hole is formed in rubber-graphene oxide system after fused salt dissolving
Gap structure, freeze-drying crush, and are scattered in mortar can be improved in mortar toughness and inner Join power.
Specific implementation mode
Building stones liquid：In mass ratio 3：1 ~ 2 takes palygorskite, serpentine to be mixed in pulverizer, and crushing is sieved with 100 mesh sieve, collected
Sieve particle in mass ratio 1：3~5：2 are added glacial acetic acid, toluene mixing to get building stones liquid.
Petropols are any one in C5 hydrogenated petroleum resins, C9 hydrogenated petroleum resins.
Auxiliary agent：Any one in aggregate, montmorillonite powder, pearl powder.
Water-reducing agent：Any one in poly carboxylic acid series water reducer model JW-8, ART-M1.
Silane coupling agent is any one in KH550, KH560, KH570.
Salt feed liquid：In mass ratio 1：1~3：8 ~ 15 take NaCl, MgSO4, water mixing to get salt feed liquid.
The preparation of lignite processed material：It takes lignite to be crushed in pulverizer, sieves with 100 mesh sieve, sieving particle is taken to move into Muffle furnace, with
60 ~ 80mL/min rates are passed through nitrogen protection into stove, are warming up to 550 ~ 650 DEG C with 6 ~ 10 DEG C/min rate programs, heat preservation hot
2 ~ 4h is solved, 800 ~ 900 DEG C is warming up to, after heat preservation is pyrolyzed 3 ~ 5h, cools to room temperature with the furnace, discharge, material must be pyrolyzed, by mass fraction
Meter takes 30 ~ 50 parts of pyrolysis material, 8 ~ 10 parts of Petropols, 4 ~ 6 parts of β-terpene resins, 0.8 ~ 1.2 part of nanometer iron powder in container successively
Mixing leads to nitrogen protection with 10 ~ 20mL/min rates, in 180 ~ 220 DEG C, after heating stirring mixes 45 ~ 60min, and natural cooling
To room temperature to get lignite processed material.
The preparation method of composite modified asphalt fiber, includes the following steps：
（1）According to the mass fraction, take the asphalt powder of 10 ~ 20 parts of 0.075 ~ 0.15mm of grain size, 50 ~ 60 parts of mass fractions be 10 ~
20% liquor potassic permanganate, 20 ~ 30 parts of silane coupling agents, 20 ~ 30 parts of volume fractions are 40 ~ 50% ethanol solutions, 10 ~ 20 parts of positive silicon
Acetoacetic ester, 10 ~ 20 parts of nano magnesias, 8 ~ 15 parts of building stones liquid；
（2）It first takes asphalt powder to be packed into melt-spun pipe, after being melted at 485 ~ 500 DEG C, obtains melt, take the melt to be in spinning voltage
20 ~ 30kV receives distance under the conditions of 8 ~ 10cm, to carry out spinning, obtaining pitch precursor, in 30 ~ 40 DEG C, take pitch precursor by quality
Than 1：3 ~ 5 are added liquor potassic permanganate mixing, and with 400 ~ 500r/min rotating speeds, heating stirring mixes 30 ~ 40min, and filtering must filter
Cake after taking filter cake to be washed with 3 ~ 5 times of deionized waters of filter cake quality, is placed in -80 DEG C of vacuum freezing drying ovens dry 2 ~ 5h, obtains dry
Dry filter cake；
（3）It is that container is added in 50% ethanol solution to take nano magnesia, silane coupling agent and volume fraction, moves to ultrasonic disperse instrument,
In 40~50 DEG C, with 55 ~ 70kHz frequencies, 15 ~ 20min of ultrasonic disperse obtains dispersion liquid, takes dispersion liquid in mass ratio 5：1 ~ 2 is added
Dry cake mixes, and after stirring 30 ~ 40min with 400 ~ 500r/min rotating speeds, ethyl orthosilicate is added, it is stirred 20 ~
30min obtains mixed liquid, takes mixed liquid to filter, obtains filter residue, after taking the deionized water of 3 ~ 5 times of filter residue quality of filter residue to wash, is placed in -80
DEG C vacuum freezing drying oven dries 2 ~ 4h, obtains dried object, collects dried object in retort, leads to nitrogen protection, with 10 ~ 15 DEG C/min
Rate program is warming up to 900 ~ 1000 DEG C, after heat preservation carbonizes 2 ~ 3h, cools to room temperature with the furnace, discharges to get composite modified asphalt
Fiber.
The preparation of rubber compound：It is 6 in mass ratio：1 ~ 2 takes waste Crumb rubber and nano graphene oxide in muller, in 60
~ 75 DEG C, it is kneaded 10 ~ 15min, is cooled to room temperature, obtains mixing materials, in mass ratio 1：3 ~ 6 take mixing materials, salt feed liquid in electrolytic cell
In, argon gas protection is passed through into electrolytic cell with 60 ~ 100mL/min rates, 10 ~ 20min is stirred, with 55 ~ 65V voltage conditions
Under, it is electrolysed 3 ~ 5h, filtering takes filter residue to be crushed in pulverizer, crosses 200 mesh sieve, collects sieving particle to get rubber compound.
A kind of concrete mortar, according to the mass fraction, including following component：50 ~ 70 parts of ordinary portland cements, 15 ~ 30 parts of quartz
Sand, 3 ~ 6 parts of auxiliary agents, 4 ~ 10 parts of water-reducing agents, 2 ~ 5 parts of building stones liquid, which is characterized in that further include：20 ~ 40 parts of lignite processed materials, 25 ~
40 parts of composite modified asphalt fibers, 18 ~ 28 parts of rubber compounds.
Building stones liquid：In mass ratio 3：1 takes palygorskite, serpentine to be mixed in pulverizer, and crushing sieves with 100 mesh sieve, and collects sieving
Particle in mass ratio 1：3：2 are added glacial acetic acid, toluene mixing to get building stones liquid.
Petropols are C5 hydrogenated petroleum resins.
Auxiliary agent：Aggregate.
Water-reducing agent：Poly carboxylic acid series water reducer model JW-8.
Silane coupling agent is KH550.
Salt feed liquid：In mass ratio 1：1：8 take NaCl, MgSO4, water mixing to get salt feed liquid.
The preparation of lignite processed material：It takes lignite to be crushed in pulverizer, sieves with 100 mesh sieve, sieving particle is taken to move into Muffle furnace, with
60mL/min rates are passed through nitrogen protection into stove, are warming up to 550 DEG C with 6 DEG C/min rate programs, heat preservation pyrolysis 2h is warming up to
It 800 DEG C, after heat preservation is pyrolyzed 5h, cools to room temperature with the furnace, discharges, material must be pyrolyzed, according to the mass fraction, take 30 parts of pyrolysis successively
Material, 8 parts of Petropols, 4 parts of β-terpene resins, 0.8 part of nanometer iron powder are mixed in container, and leading to nitrogen with 10mL/min rates protects
Shield, in 180 DEG C, after heating stirring mixes 45min, cooled to room temperature is to get lignite processed material.
The preparation method of composite modified asphalt fiber, includes the following steps：
（1）According to the mass fraction, it is that 10% potassium permanganate is molten to take the asphalt powder of 10 ~ 20 parts of grain sizes 0.075,50 parts of mass fractions
Liquid, 20 parts of silane coupling agents, 20 ~ 30 parts of volume fractions be 40% ethanol solution, 10 parts of ethyl orthosilicates, 10 parts of nano magnesias,
8 parts of building stones liquid；
（2）It first takes asphalt powder to be packed into melt-spun pipe, after being melted at 485 ~ 500 DEG C, obtains melt, take the melt to be in spinning voltage
20kV receives distance under the conditions of 8cm, to carry out spinning, obtaining pitch precursor, in 30 ~ 40 DEG C, take pitch precursor in mass ratio 1：3
Liquor potassic permanganate mixing is added, with 400r/min rotating speeds, heating stirring mixes 30min, and filtering obtains filter cake, and filter cake is taken to filter
After the 3 times of deionized water washings of cake quality, it is placed in -80 DEG C of vacuum freezing drying ovens dry 2h, obtains dry cake；
（3）It is that container is added in 50% ethanol solution to take nano magnesia, silane coupling agent and volume fraction, moves to ultrasonic disperse instrument,
In 40 DEG C, with 55kHz frequencies, ultrasonic disperse 15min obtains dispersion liquid, takes dispersion liquid in mass ratio 5：1, which is added dry cake, mixes
It closes, after stirring 30min with 400r/min rotating speeds, ethyl orthosilicate is added, is stirred 20min, obtains mixed liquid, mixed liquid is taken to filter,
Filter residue, after taking the deionized water of 3 times of filter residue quality of filter residue wash, be placed in -80 DEG C of vacuum freezing drying ovens and dry 2h, obtain dry
Dry object collects dried object in retort, leads to nitrogen protection, is warming up to 900 DEG C with 10 DEG C/min rate programs, heat preservation charing 2h
Afterwards, it cools to room temperature with the furnace, discharges to get composite modified asphalt fiber.
The preparation of rubber compound：It is 6 in mass ratio：1 takes waste Crumb rubber and nano graphene oxide in muller, in 60
DEG C, it is kneaded 10min, is cooled to room temperature, obtains mixing materials, in mass ratio 1：3 take mixing materials, salt feed liquid in electrolytic cell, with 60mL/
Min rates are passed through argon gas protection into electrolytic cell, are stirred 10min, and under 55 voltage conditions, to be electrolysed 3h, filtering takes filter residue
It is crushed in pulverizer, crosses 200 mesh sieve, collect sieving particle to get rubber compound.
A kind of concrete mortar, according to the mass fraction, including following component：50 parts of ordinary portland cements, 15 parts of quartz sands, 3 parts
Auxiliary agent, 4 parts of water-reducing agents, 5 parts of building stones liquid, which is characterized in that further include：20 parts of lignite processed materials, 2 parts of composite modified asphalt fibres
Dimension, 18 parts of rubber compounds.
Building stones liquid：In mass ratio 3：2 take palygorskite, serpentine to be mixed in pulverizer, and crushing sieves with 100 mesh sieve, and collects sieving
Particle in mass ratio 1：5：2 are added glacial acetic acid, toluene mixing to get building stones liquid.
Petropols are C9 hydrogenated petroleum resins.
Auxiliary agent：Montmorillonite powder.
Water-reducing agent：Poly carboxylic acid series water reducer model ART-M1.
Silane coupling agent is KH560.
Salt feed liquid：In mass ratio 1：3：15 take NaCl, MgSO4, water mixing to get salt feed liquid.
The preparation of lignite processed material：It takes lignite to be crushed in pulverizer, sieves with 100 mesh sieve, sieving particle is taken to move into Muffle furnace, with
80mL/min rates are passed through nitrogen protection into stove, are warming up to 650 DEG C, heat preservation pyrolysis 4h with 10 DEG C/min rate programs, heating
To 900 DEG C, after heat preservation pyrolysis 5h, cools to room temperature with the furnace, discharge, material must be pyrolyzed, according to the mass fraction, take 50 parts of pyrolysis successively
Material, 10 parts of Petropols, 6 parts of β-terpene resins, 1.2 parts of nanometer iron powders are mixed in container, and leading to nitrogen with 20mL/min rates protects
Shield, in 220 DEG C, after heating stirring mixes 60min, cooled to room temperature is to get lignite processed material.
The preparation method of composite modified asphalt fiber, includes the following steps：
（1）According to the mass fraction, take the asphalt powder of 20 parts of grain size 0.15mm, 60 parts of mass fractions be 20% liquor potassic permanganate,
30 parts of silane coupling agents, 30 parts of volume fractions are 50% ethanol solution, 20 parts of ethyl orthosilicates, 20 parts of nano magnesias, 15 parts of stones
Feed liquid；
（2）It first takes asphalt powder to be packed into melt-spun pipe, after being melted at 500 DEG C, obtains melt, take the melt to be in spinning voltage
30kV receives distance under the conditions of 10cm, to carry out spinning, obtaining pitch precursor, in 40 DEG C, take pitch precursor in mass ratio 1：5 add
Enter liquor potassic permanganate mixing, with 500r/min rotating speeds, heating stirring mixes 40min, and filtering obtains filter cake, takes filter cake filter cake
After 5 times of deionized water washings of quality, it is placed in -80 DEG C of vacuum freezing drying ovens dry 5h, obtains dry cake；
（3）It is that container is added in 50% ethanol solution to take nano magnesia, silane coupling agent and volume fraction, moves to ultrasonic disperse instrument,
In 50 DEG C, with 55 ~ 70kHz frequencies, ultrasonic disperse 20min obtains dispersion liquid, takes dispersion liquid in mass ratio 5：2 are added dry cake
Mixing after stirring 40min with 500r/min rotating speeds, is added ethyl orthosilicate, is stirred 30min, obtains mixed liquid, take mixed liquid mistake
Filter, obtains filter residue, after taking the deionized water of 5 times of filter residue quality of filter residue wash, is placed in -80 DEG C of vacuum freezing drying ovens and dries 4h,
Dried object is obtained, dried object is collected in retort, leads to nitrogen protection, be warming up to 1000 DEG C with 15 DEG C/min rate programs, keep the temperature charcoal
After changing 3h, room temperature is cooled to the furnace, discharge to get composite modified asphalt fiber.
The preparation of rubber compound：It is 6 in mass ratio：2 take waste Crumb rubber and nano graphene oxide in muller, in 75
DEG C, it is kneaded 15min, is cooled to room temperature, obtains mixing materials, in mass ratio 1：6 take mixing materials, salt feed liquid in electrolytic cell, with
100mL/min rates are passed through argon gas protection into electrolytic cell, are stirred 20min, under 65V voltage conditions, to be electrolysed 5h, mistake
Filter takes filter residue to be crushed in pulverizer, crosses 200 mesh sieve, collects sieving particle to get rubber compound.
A kind of concrete mortar, according to the mass fraction, including following component：70 parts of ordinary portland cements, 30 parts of quartz sands, 6 parts
Auxiliary agent, 10 parts of water-reducing agents, 5 parts of building stones liquid, which is characterized in that further include：40 parts of lignite processed materials, 40 parts of composite modified asphalt fibres
Dimension, 28 parts of rubber compounds.
Building stones liquid：In mass ratio 3：1.5 take palygorskite, serpentine to be mixed in pulverizer, and crushing is sieved with 100 mesh sieve, collected
Sieve particle in mass ratio 1：4：2 are added glacial acetic acid, toluene mixing to get building stones liquid.
Petropols are C5 hydrogenated petroleum resins.
Auxiliary agent：Pearl powder.
Water-reducing agent：Poly carboxylic acid series water reducer model JW-8.
Silane coupling agent is KH570.
Salt feed liquid：In mass ratio 1：2：10 take NaCl, MgSO4, water mixing to get salt feed liquid.
The preparation of lignite processed material：It takes lignite to be crushed in pulverizer, sieves with 100 mesh sieve, sieving particle is taken to move into Muffle furnace, with
70mL/min rates are passed through nitrogen protection into stove, are warming up to 600 DEG C with 8 DEG C/min rate programs, heat preservation pyrolysis 3h is warming up to
It 850 DEG C, after heat preservation is pyrolyzed 4h, cools to room temperature with the furnace, discharges, material must be pyrolyzed, according to the mass fraction, take 40 parts of pyrolysis successively
Material, 9 parts of Petropols, 5 parts of β-terpene resins, 1 part of nanometer iron powder are mixed in container, lead to nitrogen protection with 15mL/min rates,
In 200 DEG C, after heating stirring mixes 50min, cooled to room temperature is to get lignite processed material.
The preparation method of composite modified asphalt fiber, includes the following steps：
（1）According to the mass fraction, take the asphalt powder of 15 parts of grain size 0.01mm, 55 parts of mass fractions be 15% liquor potassic permanganate,
25 parts of silane coupling agents, 25 parts of volume fractions are 45% ethanol solution, 15 parts of ethyl orthosilicates, 15 parts of nano magnesias, 10 parts of stones
Feed liquid；
（2）It first takes asphalt powder to be packed into melt-spun pipe, after being melted at 490 DEG C, obtains melt, take the melt to be in spinning voltage
25kV receives distance under the conditions of 9cm, to carry out spinning, obtaining pitch precursor, in 35 DEG C, take pitch precursor in mass ratio 1：4 are added
Liquor potassic permanganate mixes, and with 450r/min rotating speeds, heating stirring mixes 35min, and filtering obtains filter cake, takes filter cake filter cake matter
After 4 times of deionized water washings of amount, it is placed in -80 DEG C of vacuum freezing drying ovens dry 3h, obtains dry cake；
（3）It is that container is added in 50% ethanol solution to take nano magnesia, silane coupling agent and volume fraction, moves to ultrasonic disperse instrument,
In 45 DEG C, with 60kHz frequencies, ultrasonic disperse 18min obtains dispersion liquid, takes dispersion liquid in mass ratio 5：1.5, which are added dry cake, mixes
It closes, after stirring 35min with 450r/min rotating speeds, ethyl orthosilicate is added, is stirred 25min, obtains mixed liquid, mixed liquid is taken to filter,
Filter residue, after taking the deionized water of 4 times of filter residue quality of filter residue wash, be placed in -80 DEG C of vacuum freezing drying ovens and dry 3h, obtain dry
Dry object collects dried object in retort, leads to nitrogen protection, is warming up to 950 DEG C with 12 DEG C/min rate programs, heat preservation charing 2.5h
Afterwards, it cools to room temperature with the furnace, discharges to get composite modified asphalt fiber.
The preparation of rubber compound：It is 6 in mass ratio：1.5 take waste Crumb rubber and nano graphene oxide in muller, in 65
DEG C, it is kneaded 12min, is cooled to room temperature, obtains mixing materials, in mass ratio 1：4 take mixing materials, salt feed liquid in electrolytic cell, with 80mL/
Min rates are passed through argon gas protection into electrolytic cell, are stirred 15min, and under 60V voltage conditions, to be electrolysed 4h, filtering takes filter
Slag is crushed in pulverizer, crosses 200 mesh sieve, collects sieving particle to get rubber compound.
A kind of concrete mortar, according to the mass fraction, including following component：60 parts of ordinary portland cements, 20 parts of quartz sands, 4 parts
Auxiliary agent, 7 parts of water-reducing agents, 3 parts of building stones liquid, which is characterized in that further include：30 parts of lignite processed materials, 340 parts of composite modified asphalt fibres
Dimension, 25 parts of rubber compounds.
Comparative example 1：It is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking lignite processed material.
Comparative example 2：It is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking composite modified asphalt fiber.
Comparative example 3：The concrete mortar of Nanjing company production.
Mortar made from embodiment and comparative example is subjected to performance detection respectively, specific test method is with reference to JC/T984-
2011.Test result is as shown in table 1.
Table 1：
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Adhesion strength（MPa） | 1.32 | 1.28 | 1.31 | 0.8 | 1.12 | 0.46~0.52 |
| Compression strength（MPa） | 66 | 64 | 65 | 63 | 36 | 24~26 |
| Flexural strength（MPa） | 8.8 | 8.5 | 8.7 | 8.6 | 8.1 | 7.1~7.6 |
| Freexing tolerance | Without cracking, peel off | Without cracking, peel off | Without cracking, peel off | Without cracking, peel off | Without cracking, peel off | Slight cracking peels off |
In summary, concrete mortar good toughness of the invention, not easy to crack, comprehensive performance is superior to commercial product, is worth big
Power is promoted the use of.
Claims (10)
1. a kind of concrete mortar, according to the mass fraction, including following component：50 ~ 70 parts of ordinary portland cements, 15 ~ 30 parts of quartz sands,
3 ~ 6 parts of auxiliary agents, 4 ~ 10 parts of water-reducing agents, 2 ~ 5 parts of building stones liquid, which is characterized in that further include：20 ~ 40 parts of lignite processed materials, 25 ~ 40
Part composite modified asphalt fiber, 18 ~ 28 parts of rubber compounds.
2. a kind of concrete mortar according to claim 1, which is characterized in that the preparation of the lignite processed material：Take lignite
It pulverizes and sieves, takes sieving particle ventilation protection, to 550 ~ 650 DEG C, heat preservation pyrolysis is warming up to 800 ~ 900 DEG C, heat preservation for temperature programming
Pyrolysis, cooling, discharging must be pyrolyzed material, according to the mass fraction, take successively 30 ~ 50 parts be pyrolyzed material, 8 ~ 10 parts of Petropols, 4 ~ 6 parts
β-terpene resin, 0.8 ~ 1.2 part of nanometer iron powder mixing, ventilation protection is stirred, cooling to get lignite processed material.
3. a kind of concrete mortar according to claim 2, which is characterized in that the Petropols are C5 hydrotreated petroleum trees
Any one in fat, C9 hydrogenated petroleum resins.
4. a kind of concrete mortar according to claim 1, which is characterized in that the preparation side of the composite modified asphalt fiber
Method includes the following steps：
（1）According to the mass fraction, take 10 ~ 20 parts of asphalt powders, 50 ~ 60 parts of liquor potassic permanganates, 20 ~ 30 parts of silane coupling agents,
20 ~ 30 parts of ethanol solutions, 10 ~ 20 parts of ethyl orthosilicates, 10 ~ 20 parts of nano magnesias；
（2）It takes asphalt powder, high-temperature fusion to obtain melt, takes melt to carry out spinning, obtain pitch precursor, in 30 ~ 40 DEG C, take pitch
Precursor in mass ratio 1：3 ~ 5, which are added liquor potassic permanganate, is mixed, and filtering obtains filter cake, Washing of Filter Cake, vacuum refrigeration is taken to obtain
Dry cake；
（3）Take nano magnesia, silane coupling agent and ethanol solution mixing, in 40 ~ 50 DEG C, ultrasonic disperse obtains dispersion liquid, takes point
Dispersion liquid in mass ratio 5：1 ~ 2, which is added dry cake, is mixed, and ethyl orthosilicate mixing is added, obtains mixed liquid, takes mixed liquid to filter, obtains
Filter residue takes filter residue to be washed with water, and freeze-drying obtains dried object, collects dried object, and ventilation protection, high temperature carbonization is cooling, discharging,
Up to composite modified asphalt fiber.
5. a kind of concrete mortar according to claim 4, which is characterized in that the step（1）Or（3）In it is silane coupled
Agent is any one in KH550, KH560, KH570.
6. a kind of concrete mortar according to claim 1, which is characterized in that the building stones liquid：In mass ratio 3：1 ~ 2 takes slope
Thread stone, serpentine mixing, pulverize and sieve, and collect sieving particle in mass ratio 1：3~5：2 be added glacial acetic acids, toluene mixing to get
Building stones liquid.
7. a kind of concrete mortar according to claim 1, which is characterized in that the preparation of the rubber compound：In mass ratio
It is 6：1 ~ 2 takes waste Crumb rubber and nano graphene oxide mixed milling, cooling, obtains mixing materials, in mass ratio 1：3 ~ 6 take mixing
Material, the mixing of salt feed liquid, ventilation protection are stirred, are electrolysed, and filtering takes filter residue to crush, and is sieved, and collect sieving particle to get rubber
Glue batch mixing.
8. a kind of concrete mortar according to claim 7, which is characterized in that the salt feed liquid：In mass ratio 1：1~3：8~
15 take NaCl, MgSO4, water mixing to get salt feed liquid.
9. a kind of concrete mortar according to claim 1, which is characterized in that the water-reducing agent：Poly carboxylic acid series water reducer type
Number for any one in JW-8, ART-M1.
10. a kind of concrete mortar according to claim 1, which is characterized in that the auxiliary agent：Aggregate, montmorillonite powder, pearl
Any one in powder.
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| CN201810736327.3A CN108793877A (en) | 2018-07-06 | 2018-07-06 | A kind of concrete mortar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810736327.3A CN108793877A (en) | 2018-07-06 | 2018-07-06 | A kind of concrete mortar |
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Family
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| CN110981314A (en) * | 2019-12-26 | 2020-04-10 | 成都弗兰斯特建筑工程有限公司 | Basalt leaking stoppage reinforcing material and preparation method thereof |
| CN115819043A (en) * | 2022-12-14 | 2023-03-21 | 武汉金中海高新科技有限公司 | Mixed fiber reinforced concrete waterproof material and preparation method thereof |
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