CN109129860A - A kind of curing means of gypsum-cement base composite gelled material and maintenance process - Google Patents
A kind of curing means of gypsum-cement base composite gelled material and maintenance process Download PDFInfo
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- CN109129860A CN109129860A CN201710506698.8A CN201710506698A CN109129860A CN 109129860 A CN109129860 A CN 109129860A CN 201710506698 A CN201710506698 A CN 201710506698A CN 109129860 A CN109129860 A CN 109129860A
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- gypsum
- cement base
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- gelled material
- composite gelled
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
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- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The curing means and maintenance process, the curing means of a kind of gypsum-cement base composite gelled material include fog room, temperature regulating device and humidity control device；The described method includes: the slurry of the gypsum-cement base composite gelled material prepared is poured into mold, vibrates, scrape off extra slurry；The die trial for filling slurry is put into above-mentioned curing means；The initial temperature and humidity of fog room are set, conserved in closed environment；It is adjusted in real time according to the actual situation in maintenance processes and conserves indoor temperature and humidity to appropriate state；Mold is sloughed after gypsum-cement base composite gelled material final set, continues to conserve；After age as defined in reaching, terminate maintenance, takes out test block.The gypsum-cement base composite gelled material after maintenance can be made to obtain better mechanical strength using the curing means and method of the application.
Description
Technical field
This application involves but be not limited to the field of building materials, be more particularly without limitation, to a kind of gypsum-cement base compound adhesive
The curing means of gel material and maintenance process.
Background technique
For gypsum, mechanical strength (flexural strength and compression strength) is according to GB/T 17669.3-1999 " building
The measurement of gypsum mechanical property " measurement.First the water of required amount of water is poured into stirring container, then the building gypsum weighed
It pours into wherein, stands 1min, then enclosed with mixing and stirring stick in 30s and stir 30.Then, it is stirred with the speed of 3r/min, makes slurry
Suspended state is kept, is then stirred with spoon to slurry and starts to be thickened.Then, it slowly stirs on one side, slurry is scooped into examination on one side
In mould.About 10mm is lifted into the front end of die trial, then is allowed to fall, is so repeated five times to exclude bubble.When the slurry from spilling
When judgement is pre-hardening, excessive slurry is scraped off with flexible spatulas, but need not scrape repeatedly and smear surface, after final set, marked in surface of test piece,
And demoulding.The test specimen for needing to make after certain hydration age strength test, is deposited at closing immediately after demoulding.In entire aquation
Period, the temperature of air is 20 DEG C ± 2 DEG C at closing, relative humidity is 90% ± 5%.After reaching regulation age, for measuring
The test specimen of dry strength should be dried in 40 DEG C ± 4 DEG C of baking oven to constant weight, then carry out strength detection rapidly.
And for cement cementitious material, mechanical strength test reference GB/T 17671-1999 " strength of cement mortar
Check system (ISO method) ".Test specimen is size 40mm × 40mm × 160mm prism, using conserving mode in water: will be carried out
It is conserved in the test specimen of the label water for being placed on 20 DEG C ± 1 DEG C horizontal or vertical immediately, surface scraping should be upward when being horizontally arranged.Test specimen is put
On not perishable double-edged fine-toothed comb, and a fixed spacing is kept to each other, to allow six face contacts of water and test specimen.Test specimen during maintenance
Between be spaced or examination body upper surface the depth of water cannot be less than 5mm.Each curing pool only conserves the cement specimen of same type.Initially use
Tap water fills curing pool (or container), then adds water to keep constant water level appropriate at any time, does not allow during maintenance all
Change water.Except age for 24 hours or the examination for being delayed to 48h demoulding are external, any examination body to age should before test (broken type) 15min from
It is taken out in water.The deposit in examination body surface face is wiped, and is covered until test with wet cloth.Examination body age is stirred from cement plus water
Start to count when experiment.
Gypsum is air hardening cementitious materials, and cement is hydraulic cementing materials, the water of gypsum-cement base composite gelled material
Change process is gypsum in aquation and cement aquation and the aquation that reacts to each other in gypsum saturated solution under cement minerals environment
Combined process.The maintenance process of test specimen in obvious above two strength test standard is for gypsum-cement base plural gel material
Material is no longer applicable in.Currently, for gypsum-cement base composite gelled material generally all defaults using maintenance side under field conditions (factors)
Method is conserved, and special curing means and maintenance process for gypsum-cement base composite gelled material is lacked.Naturally it is supporting
Care environments under the conditions of shield are extremely unstable (variations such as temperature, humidity are very big), not using the maintenance process under natural conditions
It can accurately reflect out the strength development rule of gypsum-cement base composite gelled material, and with gypsum-cement base plural gel material
Cement content in material increases, and curing condition influences the strength development of gypsum-cement base composite gelled material bigger.
Therefore, it is significant to explore a kind of maintenance process suitable for gypsum-cement base composite gelled material.
Summary of the invention
It is the general introduction to the theme being described in detail herein below.This general introduction is not the protection model in order to limit claim
It encloses.
This application provides a kind of curing means and method suitable for gypsum-cement base composite gelled material, can make
Gypsum-cement base composite gelled material after maintenance obtains better mechanical strength.
Specifically, this application provides a kind of curing means of gypsum-cement base composite gelled material, the curing means
Include:
Fog room；
Temperature regulating device, temperature change and the adjusting maintenance for real-time monitoring gypsum-cement base composite gelled material
Indoor temperature；With
Humidity control device for real-time monitoring and adjusts the indoor humidity of maintenance.
In presently filed embodiment, the temperature regulating device may include that one or more thermometers and frequency conversion are empty
It adjusts, the humidity control device may include one or more hygrometers and humidifier, and one or more of thermometer settings exist
In fog room near gypsum-cement base composite gelled material.
In presently filed embodiment, the curing means can also include microscope, for observing gypsum-cement base
Nucleus generation, grain diameter, structure and change in shape situation of the composite gelled material in maintenance processes, crystal growth condition and
Bonding state between crystal.
In presently filed embodiment, the microscope can be videomicroscopy, the probe of the videomicroscopy
Setting is conserving near above indoor gypsum-cement base composite gelled material.
In presently filed embodiment, the microscope can also include video microscope, such as plum Teller-support benefit
The ParticleView V19 videomicroscopy of company, in use, the probe of the video microscope are inserted into fog room
In interior gypsum-cement base composite gelled material.
In presently filed embodiment, the curing means can also include solar panel, the solar-electricity
Pond plate is arranged on the top and/or four peripheral walls of the curing means.
In presently filed embodiment, the curing means can also include vacuum evacuation device, air exhausting device, record examination
It is one or more in the time set of block age.
Optionally, the lower part of the curing means is arranged in the fog room, and the temperature regulating device, is taken out very humidity control device
The top of the curing means is arranged in empty device, air exhausting device and time set, and is spaced apart with the fog room.
Present invention also provides a kind of maintenance processes of gypsum-cement base composite gelled material, comprising:
The slurry of the gypsum-cement base composite gelled material prepared is poured into mold, vibrates, scrapes off extra material
Slurry；
The die trial for filling slurry is put into curing means as described above；
Using the initial temperature and humidity of temperature regulating device and humidity control device setting fog room, supported in closed environment
Shield；
The overlap joint between the crystal growth condition and crystal of gypsum-cement base composite gelled material is monitored using microscope,
Temperature regulating device and humidity control device is cooperated to monitor temperature and humidity of the gypsum-cement base composite gelled material in maintenance processes simultaneously
Variation adjusts the indoor temperature and humidity of maintenance according to monitoring result in real time；
Mold is sloughed after gypsum-cement base composite gelled material final set, continues to conserve；
After age as defined in reaching, terminates maintenance, take out test block out of described fog room.
In presently filed embodiment, micro- sem observation gypsum-cement base compound adhesive can be utilized by periodically sampling
Nucleus generation, grain diameter, structure and the change in shape situation of gel material, the overlap joint feelings between crystal growth condition and crystal
Condition.
Optionally, it is observed in real time using the videomicroscopy of curing means.
Optionally, it is observed in real time using the videomicroscopy of curing means and video microscope, wherein cementitious material
It is observed using video microscope before coagulating, when cementitious material is coagulated by the probe of video microscope from cementitious material
In take out, continue with videomicroscopy observation.
In presently filed embodiment, after the age as defined in reaching, before carrying out mechanical strength testing experiment, the side
Method can also include that the indoor temperature of maintenance is adjusted to 40 DEG C ± 4 DEG C, and test block is dry to constant weight.
In presently filed embodiment, during by test block drying to constant weight, vacuum evacuation device tune can use
The indoor pressure of maintenance is saved to control the rate of drying of test block.
In presently filed embodiment, the method utilizes row after can also being included in maintenance processes or conserving
Wind apparatus assists to reduce the indoor temperature and humidity of maintenance.
It in presently filed embodiment, counts, utilizes when being mixed from gypsum-cement base composite gelled material powder with water
The age of time set record test block.
In presently filed embodiment, the vibration, scraping off that extra slurry refers to will be before the mold that fill slurry
About 10mm is lifted at end, then is allowed to fall, and is so repeated five times to exclude bubble, is scraped off excessive slurry with flexible spatulas, but need not scrape repeatedly
Smear surface.
The inventor of the present application discovered that the temperature and humidity in maintenance processes is to the strong of gypsum-cement base composite gelled material
It is larger to spend influence on development.While not wishing to be bound by theory, but present inventor, which infers its reason, may be, temperature
Spend with humidity will affect gypsum-cement base composite gelled material various object phases (before aquation with object phases various after aquation) it is equal
Weighing apparatus point and saturated vapour pressure；In addition, the hydrated product of gypsum-cement base composite gelled material is calcium sulphate dihydrate, various forms
Hydrated calcium aluminate sulfate class object phase and C-S-H gel-like substance.The hydration process of gypsum-cement base composite gelled material is one
The dissolution Crystallization Process that material particles constantly dissolve, hydrated product is constantly precipitated.When temperature is lower, gypsum-cement base compound adhesive
The slurry degree of supersaturation of gel material is higher, and the nucleus formed in liquid phase is more, and the crystal grain of generation is small, thus the crystallization contact point generated
Also more, crystalline texture net easy to form；And temperature it is higher when, degree of supersaturation is lower, and the nucleus formed in liquid phase is few, the crystalline substance of generation
Grain is big, and crystallization contact point is also few, therefore it is more under equal conditions to form the crystalline texture net hyrate quantity to be consumed.Initially
After structure is formed, hyrate is continuously formed, and Structure Network can be made further closely knit to play invigoration effect.But reach a certain
After limit value, hyrate, which continues growing, to generate a kind of internal stress (crystalline stress) to established Structure Network.After structure is closely knit
The hyrate crystallization continuously formed is more, and crystalline stress is bigger.It will lead to structure when crystalline stress is greater than structural strength
It destroys, so that making the plastic strength of structure reduces.Therefore, when temperature is lower, hardened paste is made since degree of supersaturation is higher
Maximum plastic strength is lower.Suitable curing temperature can control generation and the structural stress of various hydrated products, be conducive to multiple
The development of cementitious material intensity is closed, and is conducive to control entringite generated and change to single sulfur type hydrated calcium aluminate sulfate.In addition,
Humidity is also the influence factor of gypsum-cement base composite gelled material maintenance.Based on this, present inventor propose for
Different gypsum-cement base composite gelled materials is formed, the conclusion conserved under unified temperature and humidity is not suitable for, and
And it provides and a kind of can adjust the curing means of temperature and humidity in real time and be conserved accordingly with the curing means
Method.
Gypsum-cement base composite gelled material is gone through two reaction process: hydration process and condensation hardening process after meeting water,
Aquation is the first reaction process, and condensation is hardened to the second reaction process；Aquation is the premise of condensation hardening, and no aquation just can not
There can be condensation to harden.The hydration process of gypsum-cement base composite gelled material be aquation of the gypsum under cement minerals environment and
Cement combined process of aquation and the aquation that reacts to each other in gypsum saturated solution.Present inventor it is discovered by experiment that
When cement mixing content is less than 5%, gypsum is presented in the aquation and condensation hardening process of gypsum-cement base composite gelled material substantially
Hydrated characteristic.With the increase of cement mixing content in composite gelled material, its heat evolution velocity then becomes increasingly complex.If can be according to stone
The hydration process and condensation hardening process of the different suitable control complex cementitious systems of cream-Composite Cementing Materials Containing component
Gypsum-cement base composite gelled material after should can making maintenance obtains better mechanical strength.But conservation system (temperature
Degree, humidity, pressure etc.) heat evolution velocity of gypsum-cement composite gelled material is influenced greatly, required for the different maintenance stages
Condition it is also different, therefore, generally require to adjust curing temperature and humidity in real time in maintenance processes, to guarantee gypsum-cement
Base composite gelled material reaches ideal maintenance situation within defined age.Present inventor is by a large amount of real
Research is tested, temperature and humidity is proposed in a creative way and is affected to the strength development of gypsum-cement base composite gelled material, and
And with the conclusion that the humidity of maintenance required for the increase of cement content in gypsum-cement base composite gelled material becomes larger, after being
The research for continuing the mechanical strength development in relation to gypsum-cement base composite gelled material provides the help being of great significance.
The heat evolution velocity of gypsum-cement base composite gelled material can be improved using the curing means and method of the application,
Its mechanical strength is set to bring into play completely, so as to the power for reflecting gypsum-cement base composite gelled material that can be more accurate
Learn strength development situation.
Other features and advantage will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood and implementing the application.The purpose of the application and other advantages can be by specifications, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical scheme, and constitutes part of specification, with this
The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the schematic diagram of the curing means of the embodiment of the present application 1.
Fig. 2 is that gypsum-cement composite gelled material aquation and the mineral composition condensed in hardening process change schematic diagram.
Specific embodiment
For the purposes, technical schemes and advantages of the application are more clearly understood, below in conjunction with attached drawing to the application
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Embodiment 1
As shown in Figure 1, the curing means of the present embodiment includes four fog rooms 1, the temperature regulating device 2, damping of vertical distribution
Device 3, time set 4, exhaust fan 5, vacuum pump 6, videomicroscopy 7, video microscope 8 (Mettler Toledo Inc.,
ParticleView V19) and solar panel 9.
The lower part of the curing means is arranged in four fog rooms 1, and door is provided on fog room, and closing door can make
Curing means is in closed state.The temperature regulating device 2 includes multiple thermometers and convertible frequency air-conditioner, and the multiple thermometer setting exists
In fog room around gypsum-cement base composite gelled material.The humidity control device 3 includes four hygrometers and humidifier, described
Four hygrometers are separately positioned in four fog rooms.The convertible frequency air-conditioner, humidifier, time set 4, exhaust fan 5 and vacuum
Pump 6 is all disposed within the top of the curing means, and is spaced apart with the fog room 1, to avoid sky damp and hot in curing means
The damage of gas bring.The probe setting of the videomicroscopy 7 is conserving above indoor gypsum-cement base composite gelled material
Near, the outside of the curing means is arranged in the display of the videomicroscopy 7.In use, it is described make video recording it is aobvious
The probe insertion of micro mirror 8 conserves in indoor gypsum-cement base composite gelled material.The solar panel 9 is arranged in institute
It states on the top and four peripheral walls of curing means.
Embodiment 2
The gypsum-cement base composite gelled material of different compositions is conserved using the curing means of embodiment 1.Specifically
Steps are as follows:
A certain amount of gypsum and cement are weighed according to cement mixing content shown in table 1, mixing is placed on mixing blender, sufficiently
Mixing；
Using sample quarterlies, appropriate mixing water is added in composite gelled material (depending on consumptive use of water normal consistence)
Gypsum-cement composite gelled material slurry is prepared, slurry is poured into mold, the front end for filling the mold of slurry is lifted about
10mm, then be allowed to fall, it so repeats five times to exclude bubble, scrapes off excessive slurry with flexible spatulas, but need not scrape repeatedly and smear surface；
The die trial for filling slurry is put into the fog room 1 of the curing means of embodiment 1；
According to pre-stage test and literature survey[1-8], in conjunction with composite gelled material solubility curve[9], phasor[10]It is dynamic with crystallization
Mechanical analysis, initial temperature, humidity and pressure needed for determining the maintenance of the gypsum-cement base composite gelled material of different compositions
Power is configured using temperature regulating device 2 and humidity control device 3, is conserved；
By taking cement mixing content is the gypsum-cement base composite gelled material of 10wt% as an example, which adds water shape
CaO, CaSO after slurry, in entire hydration process in slurry4、Al2O3、SiO2、H2The objects phase concentration such as O is substantially always
What is changed.At aquation initial period (0-30min), the aqueous solution of the composite gelled material must be initially formed
CaSO4·2H2O supersaturated solution (Fig. 2), then as CaSO4·2H2CaSO in O precipitation system4Object is mutually reduced quickly, such as
Fruit is wanted to improve the mechanical strength of the composite gelled material, to allow as far as possible and consume a large amount of CaSO4The compound system of object phase is as far as possible
C is precipitated3A·3CaSO4·32H2O.Through Phase Diagram Analysis it is found that when the temperature of the composite gelled material aqueous solution is 25 DEG C,
Solution composition point is to fall in CaO-Al first2O3-CaSO4-H2Ith area of O system phasor (Fig. 8 in bibliography [10])
(CaSO4·2H2The saturation crystallization area of O), with CaSO4·2H2The precipitation of O, then then enters III soon2Area (C3A·
3CaSO4·32H2The saturation crystallization area of O), form C3A·3CaSO4·32H2The supersaturated solution of O, so that C be precipitated3A·
3CaSO4·32H2O.Therefore, in order to guarantee the composition (gypsum: cement=90:10) gypsum-cement composite gelled material water
Solution is with CaSO4·2H2C is precipitated rapidly after the completion of the generation and consumption of O3A·3CaSO4·32H2O object phase, i.e., quickly from Ith area
Into IIIth 2 area, then to make the control of its initial reaction temperature at 25 DEG C.While in order to guarantee composite gelled material in maintenance space
Gas-liquid phase saturated vapor pressure constant and reaction progress, obtained under the curing temperature according to The Ideal-Gas Equation
Pressure be 77.5mmHg.
By in the probe insertion gypsum-cement base composite gelled material of video microscope 8, monitored using video microscope 8
Nucleus generation, grain diameter, structure and the change in shape situation of gypsum-cement base composite gelled material, crystal growth condition and
Overlap joint between crystal adjusts the temperature and humidity in curing means according to the observation when fructufy；Meanwhile it being filled with the use of temperature control
The thermometer for setting 2 monitors temperature change of the gypsum-cement base composite gelled material in maintenance processes, is calculated according to temperature change
Its thermal change situation in exothermic process, the hydration rate and aquation mistake of quantitative description gypsum-cement base composite gelled material
Journey adjusts the temperature and humidity in curing means according to hydration process in real time；
The probe of video microscope 8 is taken from cementitious material when gypsum-cement base composite gelled material coagulates
Out, videomicroscopy 7 is continued with to be monitored；It is supported simultaneously with the use of the thermometer monitoring of temperature regulating device 2 and real-time adjust
Indoor temperature is protected to appropriate state；
After gypsum-cement base composite gelled material completes heat evolution velocity, into condensation hardening process, CaSO4·2H2O promotees
Into C3S and C2The aquation of S, is formed simultaneously C-S-H gel, and C-S-H composition changes with reaction temperature, time；After a couple of days,
A small amount of C in the hardenite3A·3CaSO4·32H2O decomposes, and generates six square plate shape list sulfur type hydrated calcium aluminate sulfates.Solidifying
It ties hardening process initial stage, effectively controls the generating rate and C of C-S-H gel3A·3CaSO4·32H2The decomposition rate of O is conducive to
Therefore the formation and stable development of the composite gelled material intensity will adjust the maintenance humidity of the process.Specific adjustment process
Are as follows: according to the temperature change that the thermometer of temperature regulating device 2 detects, draw exotherm；According in the curing age of setting
Whether the strength development of crystal growth speed and exotherm combination micro-judgment composite gelled material is consistent with estimated, if
It is not consistent, then is adjusted using temperature regulating device 2 and humidity control device 3 and conserve indoor temperature and humidity.For example, in hydration process,
The nucleus size and generation quantity of composite gelled material hydrated product are monitored using video microscope 8, and are monitored with temperature regulating device 2
Hydration temperature, adjusting curing temperature and humidity if it is faster than entire heat evolution velocity so matches it with entire heat evolution velocity
(being turned up or turn down according to the actual situation temperature and/or humidity)；In condensation hardening process, stone is monitored using videomicroscopy 7
Overlap joint between cream-Composite Cementing Materials Containing crystal growth condition and crystal monitors gypsum-water using temperature regulating device 2
The heat release situation of mud base composite gelled material draws exotherm, hardens by adjusting curing temperature and humidity adjustment condensation
Journey.
It is demoulded immediately after gypsum-cement base composite gelled material final set, continues to conserve after demoulding；
After reaching defined age (curing age 3d), before carrying out mechanical strength testing experiment, the maintenance is filled
Temperature in setting is adjusted to 40 DEG C ± 4 DEG C, and test block is dry to constant weight, and unlatching vacuum pump 6 is adjusted described during drying
Pressure in curing means, test block is dry to constant weight；
Wherein, it is counted when being mixed from gypsum-cement composite gelled material with mixing water, utilizes time set record test block
Age.
In maintenance processes, if according to the crystal growth condition of gypsum-cement base composite gelled material and between each other
Overlap joint, need to reduce the temperature or humidity in the curing means, open the exhaust fan 5, so as to quickly reduce temperature or
Humidity；Similarly, terminating to conserve, after taking out test block out of described curing means, the exhaust fan 5 can also be opened.
The hydration process of gypsum-cement base composite gelled material and the initial conservation system of condensation hardening process are see table 1
With 2.
The environmental Kuznets Curves of 1 composite gelled material hydration process of table
The environmental Kuznets Curves of 2 composite gelled material of table condensation hardening process
Comparative example 1
Using gypsum maintenance mode (maintenance process specified in GB/T 17669.3-1999) to the gypsum-of different compositions
Composite Cementing Materials Containing is conserved (curing age 3d).
Comparative example 2
The gypsum-cement base compound adhesive of (13-25 DEG C, humidity RH50-85%) to different compositions under natural environmental condition
Gel material is conserved (curing age 3d).
Test case
GB/T 17669.3-1999 " test of building gypsum mechanical property " test is through 2 He of embodiment according to national standards
The mechanical strength of gypsum-cement base composite gelled material after the maintenance of comparative example 1.Test result is see table 3.
Table 3
From table 3 it can be seen that conserving the maintenance mode under mode and natural conditions compared to gypsum, supporting for the application is utilized
After protection unit and maintenance process maintenance, the flexural strength and compression strength of gypsum-cement base composite gelled material are considerably higher,
Illustrate the application maintenance process can be more accurate reflect gypsum-cement base composite gelled material mechanical strength development
Situation.
Although embodiment disclosed by the application is as above, the content only for ease of understanding the application and use
Embodiment is not limited to the application.Technical staff in any the application fields, is taken off not departing from the application
Under the premise of the spirit and scope of dew, any modification and variation, but the application can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Bibliography:
[1] Meng Gang, Zhang Kaifeng, Zhao Jianmin wait composite Portland cement to change surname research to gypsum based composite cementing material
[J], commerical ready-mixed concrete, 2014 (1) 40-42.
[2] Fan Xianping, Wang Zhi, Jia Xingwen, wait effect [J] of the cement in gypsum composite gelled material system, and 2013,
36 (1): 46-49.
[3] Tan Ping, Wang Haiyun, complex effect [J] of the auspicious power plant desulfurization gypsum powder of Liu family in cement-based gelling material,
2010,33 (2): 39-43.
[4] generation gold portland cement-aluminate cement-gypsum tri compound cementitious material experimental study [D] suddenly, Xi'an:
Xi'an University of Architecture and Technology, 2007.
[5] the object phase change research [J] in state semi-hydrated gypsum hydration process is tried to gain, silicate journal, 2002,30 (4):
532-536.
[6] Zhou Futao, discussion [J] New Building Materials of Shi Zongli curing system of gypsum based composite cementing material,
2007:70-72.
[7] research [J] the concrete and cement of the modification of Zhou Fei, Yang Jiujun, Wang Fang desulphurization building gypsum and conservation system
Product, 2012, (7): 49-53.
[8] progress [J] total utilization of PCA of Ye Beihong, Qian Yaoli, Jiang Chuande gypsum composite gelled material,
2014,5:47-49.
[9] Beijing Chen Yan, Yue Wenhai, Dong Ruo orchid gypsum building material [M]: Chinese building material industry publishing house, 2003.
[10] Liu's root honor .CaO-Al2O3-H2O and CaO-Al2O3-CaSO4-H2O system phasor and its in related cement
Using [J] building materials research institute proceeding, 1980.
Claims (10)
1. a kind of curing means of gypsum-cement base composite gelled material, the curing means include:
Fog room；
Temperature regulating device, in the temperature change and the adjusting fog room of real-time monitoring gypsum-cement base composite gelled material
Temperature；With
Humidity control device for real-time monitoring and adjusts the indoor humidity of maintenance.
2. curing means according to claim 1, wherein the temperature regulating device include one or more thermometers and
Convertible frequency air-conditioner, the humidity control device include one or more hygrometers and humidifier, one or more of thermometer settings
In fog room near gypsum-cement base composite gelled material.
3. curing means according to claim 1 further includes microscope, for observing gypsum-cement base plural gel material
Nucleus generation, grain diameter, structure and change in shape situation in maintenance processes are expected, between crystal growth condition and crystal
Bonding state.
4. curing means according to claim 3, wherein the microscope is videomicroscopy, the videomicroscopy
Probe setting conserving near above indoor gypsum-cement base composite gelled material；Optionally, the microscope further includes
Video microscope, in use, the probe insertion of the video microscope conserve indoor gypsum-cement base plural gel
In material.
5. curing means according to claim 1 further includes solar panel, the solar panel is arranged in institute
It states on the top and/or four peripheral walls of curing means；Optionally, the curing means further includes vacuum evacuation device, air exhausting device, note
It records one or more in the time set of test block age；Optionally, the fog room is arranged under the curing means
The upper of the curing means is arranged in portion, the temperature regulating device, humidity control device, vacuum evacuation device, air exhausting device and time set
Portion, and be spaced apart with the fog room.
6. a kind of maintenance process of gypsum-cement base composite gelled material, comprising:
The slurry of the gypsum-cement base composite gelled material prepared is poured into mold, vibrates, scrapes off extra slurry；
The die trial for filling slurry is put into curing means according to any one of claims 1-5；
Using the initial temperature and humidity of temperature regulating device and humidity control device setting fog room, conserved in closed environment；
Using the overlap joint between the crystal growth condition and crystal of microscope monitoring gypsum-cement base composite gelled material, simultaneously
The temperature and humidity of temperature regulating device and humidity control device monitoring gypsum-cement base composite gelled material in maintenance processes is cooperated to become
Change, adjusts the indoor temperature and humidity of maintenance in real time according to monitoring result；
Mold is sloughed after gypsum-cement base composite gelled material final set, continues to conserve；
After age as defined in reaching, terminates maintenance, take out test block out of described fog room.
7. maintenance process according to claim 6, wherein by periodically sampling, utilize micro- sem observation gypsum-cement base
Nucleus generation, grain diameter, structure and the change in shape situation of composite gelled material, taking between crystal growth condition and crystal
Connect situation；Alternatively, the videomicroscopy using curing means is observed in real time；Alternatively, the video using curing means is micro-
Mirror and video microscope are observed in real time, wherein cementitious material is observed before coagulating using video microscope, when gelling material
Material takes out the probe of video microscope when coagulating from cementitious material, continues with videomicroscopy observation.
8. maintenance process according to claim 6, after the age as defined in reaching, before carrying out mechanical strength testing experiment,
It is the method also includes the indoor temperature of maintenance is adjusted to 40 DEG C ± 4 DEG C, test block is dry to constant weight；Optionally, exist
During by test block drying to constant weight, the indoor pressure of maintenance is adjusted to control the dry of test block using vacuum evacuation device
Dry rate.
9. maintenance process according to claim 6 utilizes air exhausting device after further including in maintenance processes or conserve
It assists to reduce the indoor temperature and humidity of maintenance；Optionally, it is mixed from gypsum-cement base composite gelled material powder with water
When count, utilize time set record test block age.
10. maintenance process according to claim 6, wherein the vibration, slurry will be filled by scraping off extra slurry and referring to
The front end of mold lift about 10mm, then be allowed to fall, so repeat five times to exclude bubble, scrape off excessive slurry with flexible spatulas, but
It need not scrape repeatedly and smear surface.
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