CN109867460A - Modified white cement and its method of modifying of application, white cement - Google Patents
Modified white cement and its method of modifying of application, white cement Download PDFInfo
- Publication number
- CN109867460A CN109867460A CN201910282674.8A CN201910282674A CN109867460A CN 109867460 A CN109867460 A CN 109867460A CN 201910282674 A CN201910282674 A CN 201910282674A CN 109867460 A CN109867460 A CN 109867460A
- Authority
- CN
- China
- Prior art keywords
- cement
- white
- modified
- rapid hardening
- aluminum sulfate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of modified white cement and its method of modifying of application, white cement.The modification white cement includes following each component: white portland cement and white quick setting and rapid hardening high belite sulphate aluminium cement；The white quick setting and rapid hardening high belite sulphate aluminium cement prepares clinker used by the mineral composition of following weight percent: 22.67%~37.24%37.02%~46.21% C2S, 13.51%~26.33% CaSO4, 0.5%~4.6% f-CaO, 0.46%~3.04% C4AF, surplus are to mix mineralogical composition.The modification white cement has microdilatancy steady in a long-term and low shrinkage performance, it is not susceptible to warpage and cracking in use, its intensity is improved under the premise of guaranteeing certain whiteness simultaneously, the construction efficiency of cement is high, and it is suitable for high-strength high-performance concretes and mortar product field.
Description
Technical field
The present invention relates to cement fields, in particular to a kind of modified white cement and its modification side of application, white cement
Method.
Background technique
White portland cement (also known as white cement) be current Building decorating and repairs engineering, the manufacture of building artificial stone material,
Commonly used special silicate cement in architectural concrete and the production of mortar and decoration element, in long-term use process
In, some insoluble performance weakness are also exposed, such as due to the problem of Cracking of the larger generation of drying shrinkage and buckling deformation are asked
Topic, since hydration and hardening is compared with construction and the relatively low problem of production efficiency etc. caused by slow.To solve the above problems, vast engineering technology
Personnel have done many research work, for example high signal area, sulphate aluminium cement, swelling agent and various fibers is added etc., so
And all there are associated disadvantages in above method:
Firstly, many high signal areas for improve white cement intensity have good effect, but not can solve drying shrinkage and
Problem of Cracking.
Secondly, improving the early strength and dry shrinkage and cracking of white portland cement using the method that sulphate aluminium cement is added
Performance is the method generallyd use both at home and abroad at present, but this method has following defect: (1) being added in white portland cement a large amount of
Sulphate aluminium cement can improve the water requirement of compound system, keep unfavorable to the workability of mortar or concrete.(2) white silicon
When a small amount of sulphate aluminium cement being added in acid salt cement, no matter is improved from intensity or expand decrement all without positive effect；Add
When entering a large amount of sulphate aluminium cements, although early strength and expansion are all very high, since sulphate aluminium cement is due to itself mineral
There are the problem of Aft is converted to AFm in matching problem, aquation later period, which can bring later strength decline and bigger drying shrinkage,
The drying shrinkage brings bigger cubic deformation to material system, this is also currently used white portland cement-aluminium sulfate
Cement (or high alumina cement)-gypsum ternary system early stage results are fine, and the more serious even intensity that cracks after half a year or 1 year is fallen
The basic reason of contracting.(3) sulphate aluminium cement itself whiteness is low, and compound system whiteness can be made by being incorporated into white portland cement
It is greatly reduced, reduces architectural concrete or mortar and its product toning effect.
In addition, addition swelling agent and fiber are also the common method for solving problem of Cracking in concrete or mortar, but swollen
Swollen dose expansion does not enhance, while influencing on white cement whiteness also very big；Fiber has humidification, and no expansion decrement acts on,
It uniquely relies on stress peptizaiton and plays cracking resistance in early stage, it is expensive, and not to fresh concrete or mortar working adjustment
Benefit.
In conclusion invent a kind of expansion decrement that can either be stable, make white silicate avoid for a long time buckling deformation and
Cracking, and intensity can be increased, it is allowed to the use demand suitable for higher intensity, while influencing again on whiteness small and cheap
Method of modifying, be the urgent need of current white portland cement application field.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of modified white cement, which has that whiteness is high, intensity is high
Advantage not easy to crack.
The second object of the present invention is to provide application of the above-mentioned modified white cement of one kind in building materials or construction.
The third object of the present invention is to provide a kind of building materials including above-mentioned modified white cement.
The fourth object of the present invention is to provide a kind of method of modifying of white cement.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
In a first aspect, the present invention provides a kind of modified white cement, including following each component: white portland cement and white
Color quick setting and rapid hardening high belite sulphate aluminium cement；
White quick setting and rapid hardening high belite sulphate aluminium cement preparation clinker used is by following weight percent
Mineral composition: 22.67%~37.24%37.02%~46.21% C2S, 13.51%~26.33%
CaSO4, 0.5%~4.6% f-CaO, 0.46%~3.04% C4AF, surplus are to mix mineralogical composition.
As further preferred technical solution, the modified white cement includes each component of following weight percent: white
Color portland cement 60%~90%, white quick setting and rapid hardening high belite sulphate aluminium cement 10%~40%.
It further include aluminum sulfate in the modified white cement component as further preferred technical solution；
Preferably, the modified white cement includes each component of following weight percent: white portland cement 60%~
89.9%, white quick setting and rapid hardening high belite sulphate aluminium cement 10%~39.9%, aluminum sulfate 0.1%~3%；
Preferably, the aluminum sulfate in anhydrous slufuric acid aluminium, five water aluminum sulfate or aluminum sulfate octadecahydrate at least one
Kind.
As further preferred technical solution, the intensity etc. of the white quick setting and rapid hardening high belite sulphate aluminium cement
Grade is 42.5~82.5.
Second aspect, the present invention provides a kind of application of above-mentioned modified white cement in building materials or construction.
The third aspect, the present invention provides a kind of building materials, including above-mentioned modified white cement, the building materials are preferably artificial stone
Material, architectural concrete, decoration mortar or decoration element.
Fourth aspect, the present invention provides a kind of method of modifying of white cement, and white portland cement and white is fast solidifying
Fast hard high belite sulphate aluminium cement mixing；
White quick setting and rapid hardening high belite sulphate aluminium cement clinker mineral composition used in the preparation are as follows:
22.67%~37.24%37.02%~46.21% C2S, 13.51%~26.33% CaSO4, 0.5%
~4.6% f-CaO, 0.46%~3.04% C4AF, surplus are to mix mineralogical composition.
As further preferred technical solution, white portland cement accounting 60%~90% when mixing, white is fast solidifying
Fast hard high belite sulphate aluminium cement accounting 10%~40%.
As further preferred technical solution, when mixing, further includes the steps that aluminum sulfate is added；
Preferably, white portland cement accounting 60%~89.9% when mixing, white quick setting and rapid hardening high belite sulphur aluminium
Acid salt cement accounting 10%~39.9%, aluminum sulfate accounting 0.1%~3%；
Preferably, the aluminum sulfate in anhydrous slufuric acid aluminium, five water aluminum sulfate or aluminum sulfate octadecahydrate at least one
Kind.
As further preferred technical solution, the intensity etc. of the white quick setting and rapid hardening high belite sulphate aluminium cement
Grade is 42.5~82.5.
Compared with prior art, the invention has the benefit that
Modified white cement provided by the invention is mainly using white portland cement as base-material, with specific white quick setting and rapid hardening
High belite sulphate aluminium cement is modifying agent, take optional aluminum sulfate as auxiliary regulator, which has long-term
Stable microdilatancy and low shrinkage performance, to avoid white cement recurrent warpage and cracking in use, simultaneously
Its intensity is improved under the premise of guaranteeing certain whiteness, by early strong and humidification, improves the application of white portland cement
Construction efficiency extends it in the application of high-strength high-performance concrete and mortar product field.
The modified white cement of the present invention is had excellent performance: 8 hours compression strength can reach 2-3.4MPa, 3 days compression strength
It can reach 45-50MPa, 28 days compression strength reaches 66-75MPa, and free swelling rate can reach 0.2-0.4% within 28 days.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.
It should be understood that
In the present invention, if without particularly illustrating, all embodiments mentioned in this article and preferred implementation method
It can be combined with each other to form new technical solution.
In the present invention, if without particularly illustrating, all technical characteristics and preferred feature mentioned in this article can be with
Intercombination forms new technical solution.
In the present invention, if percentage (%) or part refer to the weight relative to composition without particularly illustrating
Percentage or parts by weight.
In the present invention, if related each component or its preferred ingredient can be combined with each other shape without particularly illustrating
The technical solution of Cheng Xin.
In the present invention, unless otherwise indicated, numberical range " a~b " indicates the contracting of any real combinings between a to b
Sketch form shows that wherein a and b is real number.Such as numberical range " 10%~40% " indicates all to list " 10% herein
Whole real numbers between~40% ", " 10%~40% " are that the breviary of these combinations of values indicates.
" range " disclosed in this invention can be respectively one or more lower limits and one in the form of lower and upper limit
A or multiple upper limits.
In the present invention, unless otherwise indicated, each reaction or operating procedure can be carried out sequentially, can not also be in sequence
It carries out.Preferably, reaction method herein is that sequence carries out.
Unless otherwise indicated, profession used herein and meaning phase known to scientific term and one skilled in the art
Together.In addition, any method similar to or equal to what is recorded or material can also be applied in the present invention.
Current existing white portland cement modified effect is bad, cannot be considered in terms of the expansion decrement of cement, intensity and
Whiteness, so that the application field of white cement is more limited.The present inventor in order to improve the above performance of white cement,
White cement is modified using different modifying agent, and has carried out a large amount of research, research is found:
A kind of high belite aluminium sulfate with quick setting and rapid hardening performance of white of present applicant recent invention
Cement (patent publication No. CN105330182A) itself not only quick setting and rapid hardening, and long-term age intensity height, while having micro- swollen
Swollen and low shrinkage performance, itself Hunter whiteness is 70 or more.Pass through a large amount of technical research of present inventor, the cement doping
To in white portland cement, there is significant performance improvement to act on white portland cement, it is especially few in incorporation
After amount aluminum sulfate makees auxiliary adjustment agent, for promoting condensation hardening, raising early stage and later strength effect more obvious.
Studies have shown that the white quick setting and rapid hardening high belite sulphate aluminium cement of white portland cement admixture is modified, with
The increase condensation firm time of volume is accelerated, and the intensity of early stage and 28 days is significantly increased；Its 8 hours compression strength growth rates
Up to 100%, compression strength growth rate is up to 10%-20% or more within 28 days；The expansion rate of cement mortar obviously increases simultaneously.Mesh
The performance of preceding commercially available 52.5 grades of white portland cements are as follows: initial set 150 minutes, final set 325 minutes；8 hours compression strength 1MPa,
3 days compression strength 36.3MPa, 28 days compression strength 60MPa, 28 days free swelling rates 0.053%.Using formula of the invention and
Method 8 hours compression strength of modified white cement can reach 2-3.4MPa, and 3 days compression strength can reach 45-50MPa, and 28 days
Compression strength reaches 66-75MPa, and free swelling rate can reach 0.2-0.4% within 28 days.To modified cement long-age hydrated product
XRD, DTG and SEM examine display, do not have the phenomenon that Aft is converted to AFm, this is each mine phase content of modified cement
With more reasonable determined.
Therefore, using white portland cement as base-material, with above-mentioned specific white quick setting and rapid hardening high belite aluminium sulfate
Cement be modifying agent, with optional aluminum sulfate be assist the obtained modification white cement of regulator have microdilatancy steady in a long-term and
Low shrinkage performance to avoid white cement recurrent warpage and cracking in use, while guaranteeing certain whiteness
Under the premise of improve its intensity, by early strong and humidification, improve the application and construction efficiency of white portland cement, extend it
In the application of high-strength high-performance concrete and mortar product field.
On the basis of the above result of study, the present invention provides a kind of modified white cement and its systems of application, white cement
Preparation Method, specific:
As one aspect of the present invention, a kind of modified white cement is provided at least one embodiment, including following
Each component: white portland cement and white quick setting and rapid hardening high belite sulphate aluminium cement；
White quick setting and rapid hardening high belite sulphate aluminium cement preparation clinker used is by following weight percent
Mineral composition: 22.67%~37.24%37.02%~46.21% C2S, 13.51%~26.33%
CaSO4, 0.5%~4.6% f-CaO, 0.46%~3.04% C4AF, surplus are to mix mineralogical composition.
Above-mentioned modified cement whiteness is good, not easy to crack in use, and intensity is high.
It should be understood that above-mentionedFor calcium sulphoaluminate, " C2S " is dicalcium silicate, " CaSO4" it is calcium sulfate,
" f-CaO " is free calcium oxide, " C4AF " is tetra calcium aluminoferrite.
It should be noted that above-mentioned white quick setting and rapid hardening high belite sulphate aluminium cement is Publication No.
Documented cement in the Patent right requirement 1-17 of CN105330182A (its by following weight percent chemical component group
At: 12.9%~16.1%SiO2, 12%~19%Al2O3, 0.15%~1%Fe2O3, 49%~53%CaO, 12%~
18.46%SO3, surplus is hybrid chemistry ingredient；Clinker moduli range Cm:1.01~1.137, P:0.62~1.44), about it
Specific mineral composition, chemical component composition and preparation method thereof etc., have been documented, the present invention in the patent specification
This is repeated no more.It should be understood that all cement in the scope of patent protection can be applied in the present invention.
In a preferred embodiment, the modified white cement includes each component of following weight percent: white
Portland cement 60%~90%, white quick setting and rapid hardening high belite sulphate aluminium cement 10%~40%.This preferred implementation side
The content of each component is scientific and reasonable in formula, and modified cement has good cracking resistance, and intensity is higher, and whiteness is higher.On
State white portland cement content it is typical but non-limiting be 60%, 65%, 70%, 75%, 80%, 85% or 90%；
It is 10% that the content of above-mentioned white quick setting and rapid hardening high belite sulphate aluminium cement is typical but non-limiting, 15%, 20%,
25%, 30%, 35% or 40%.
It in a preferred embodiment, further include aluminum sulfate in the modified white cement component.Increase sulphur in component
Sour aluminium can accelerate the condensation hardening of cement, improve early strength, further improve the cohesiveness and water-retaining property of cement-based material,
Dusting, problem of Cracking caused by reducing because of bleeding and isolation.
In a preferred embodiment, the modified white cement includes each component of following weight percent: white
Portland cement 60%~89.9%, white quick setting and rapid hardening high belite sulphate aluminium cement 10%~39.9%, aluminum sulfate
0.1%~3%.The content of each component is scientific and reasonable in this preferred embodiment, by the compounding of each component, so that modified cement
With more excellent cracking resistance, and intensity is further enhanced, and whiteness is higher.Above-mentioned white portland cement contains
Measuring typical but non-limiting is 60%, 65%, 70%, 75%, 80%, 85% or 89.9%；Above-mentioned white quick setting and rapid hardening is high
The typical but non-limiting content of belite sulphate aluminium cement is 10%, 15%, 20%, 25%, 30% or 39.9%；On
State aluminum sulfate content it is typical but non-limiting be 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5% or 3%.
In a preferred embodiment, the aluminum sulfate is selected from anhydrous slufuric acid aluminium, five water aluminum sulfate or 18 water sulphur
At least one of sour aluminium.
Above-mentioned " anhydrous slufuric acid aluminium " refers to the aluminum sulfate without the crystallization water, molecular formula Al2(SO4)3；Above-mentioned " five water sulphur
Sour aluminium " refers to containing there are five the aluminum sulfate of the crystallization water, molecular formula Al2(SO4)3·5H2O；Above-mentioned " aluminum sulfate octadecahydrate " is
Refer to the aluminum sulfate containing 18 crystallizations water, molecular formula Al2(SO4)3·18H2O。
Preferably, the strength grade of the white quick setting and rapid hardening high belite sulphate aluminium cement is 42.5~82.5.On
It is 42.5,52.5,62.5,72.5 or 82.5 that it is typical but non-limiting, which to state strength grade,.
The preparation method of above-mentioned modified white cement is to be uniformly mixed each component.This method processing step is simple, only need by
Each component be uniformly mixed, be suitble to industrially scalable metaplasia produce, the modification white cement being prepared can stable expansion subtract
The problem of contracting, being not susceptible to shrinkage cracking in use, and cement can be improved under the premise of guaranteeing certain whiteness
Intensity.
As another aspect of the present invention, the above-mentioned modified white cement of one kind is provided at least one embodiment and is being built
Application in material or construction.Above-mentioned modified white cement is applied in building materials or construction, building materials can be effectively improved
Quality, construction quality and construction efficiency.
Preferably, the building materials include artificial stone, architectural concrete, decoration mortar or decoration element.
Artificial stone refers to that be equipped with natural marble or calcite, dolomite, silica sand, glass powder etc. with cementing material inorganic
Object powder and suitable fire retardant, color etc., through the methods of ingredient mixing, porcelain casting, vibrocompression, extruding forming and hardening system
At stone material.Architectural concrete is a kind of U.S. popular in recent years, Canada, Australia, Europe and mainly flourishing in the world
The fast environmentally protective earth material with popularization of country.It can on common new-old concrete surface layer originally, by color, tone,
The organic assembling of the creative design of texture, style, texture, mechanism and irregular lines, pattern and color creates various natural
Marble, granite, brick, watt, the lithotomes laying effect such as timber floor, have the beautiful natural, real colour of figure persistently, matter
The features such as ground is sturdy and durable.Decoration mortar refers to the mortar as building facing.It is while plastering, through various processing
It handles and obtains special facing form, to meet a kind of incrustation of aesthetic needs.Decoration element refers to that decorations are adornd
Plane materiel material or component can safely, reasonably be attached to major structure of construction or building enclosure.
Preferably, artificial stone is selected from cement mo(u)ld artificial stone or composite artificial stone material.
Preferably, the construction includes construction and decoration construction.
It should be noted that with original known in the field when above-mentioned modified white cement is applied in building materials or construction
Material proportion or construction method are applied, and the present invention is not particularly limited this.
As another aspect of the present invention, providing at least one embodiment a kind of includes above-mentioned modified white cement
Building materials.Above-mentioned building materials include above-mentioned modified white cement, therefore at least have advantage identical with above-mentioned modified white cement, this is built
Material intensity is high, not easy to crack or warpage, whiteness are good.
Preferably, the building materials include artificial stone, architectural concrete, decoration mortar or decoration element.
Preferably, artificial stone is selected from cement mo(u)ld artificial stone or composite artificial stone material.
As another aspect of the present invention, a kind of method of modifying of white cement is provided at least one embodiment,
White portland cement is mixed with white quick setting and rapid hardening high belite sulphate aluminium cement；
White quick setting and rapid hardening high belite sulphate aluminium cement preparation clinker used is by following weight percent
Mineral composition: 22.67%~37.24%37.02%~46.21% C2S, 13.51%~26.33%
CaSO4, 0.5%~4.6% f-CaO, 0.46%~3.04% C4AF, surplus are to mix mineralogical composition.
It using specific white quick setting and rapid hardening high belite sulphate aluminium cement is modifying agent to white in above-mentioned method of modifying
Portland cement is modified, and modified technique step is simple, is easy to execute-in-place, can effectively avoid cement in use
The problem of shrinkage cracking of generation, makes cement quick setting and rapid hardening under the premise of guaranteeing certain whiteness, increases the early strength of cement
And long-term strength, improve the application and construction efficiency of white portland cement.
In a preferred embodiment, white portland cement accounting 60%~90% when mixing, white are fast solidifying fast
Hard high belite sulphate aluminium cement accounting 10%~40%.
In a preferred embodiment, further include the steps that aluminum sulfate is added when mixing.
In a preferred embodiment, white portland cement accounting 60%~89.9% when mixing, white are fast solidifying
Fast hard high belite sulphate aluminium cement accounting 10%~39.9%, aluminum sulfate accounting 0.1%~3%.
It should be noted that the weight of component accounts for the weight hundred of material total weight after mixing when above-mentioned " accounting " refers both to mixing
Divide ratio.
Preferably, the aluminum sulfate in anhydrous slufuric acid aluminium, five water aluminum sulfate or aluminum sulfate octadecahydrate at least one
Kind.
Above-mentioned " anhydrous slufuric acid aluminium " refers to the aluminum sulfate without the crystallization water, molecular formula Al2(SO4)3；Above-mentioned " five water sulphur
Sour aluminium " refers to containing there are five the aluminum sulfate of the crystallization water, molecular formula Al2(SO4)3·5H2O；Above-mentioned " aluminum sulfate octadecahydrate " is
Refer to the aluminum sulfate containing 18 crystallizations water, molecular formula Al2(SO4)3·18H2O。
Preferably, the strength grade of the white quick setting and rapid hardening high belite sulphate aluminium cement is 42.5~82.5.
Below with reference to embodiment and comparative example, the present invention will be further described in detail.
Table 1
By the data of table 1 it is found that in embodiment 1-7 the component proportion of modified white cement in the preferred range,
For embodiment 1-7 on the basis of maintaining higher whiteness, each age strength has biggish growth, and comprehensive performance is better than real
A 8-9 is applied, embodiment 8 is since modifying agent incorporation is excessive, and not only whiteness has larger decline, and 28 days intensity does not increase not only
Add, decreases instead；Embodiment 9 is since modifying agent additional amount is very few, although maintaining very high whiteness, to each age
Slight improvement result is also small.Therefore, the comprehensive performance of modified white cement can be further increased by preferred component compounding.
Comparative example 1
A kind of modified cement, unlike the first embodiment, by white quick setting and rapid hardening high belite sulphur aluminic acid in this comparative example
Salt cement replaces with TX-M-1 admixture (Wuhan Huaxuan High-tech Co., Ltd.'s production).
Comparative example 2
A kind of modified cement, including following components in percentage by weight: white portland cement 80% and quick hardening cement (nothing
The production of tin city Yao Wei construction material Co., Ltd, grey cement) 20%.
Comparative example 3
A kind of modified cement, including following components in percentage by weight: white portland cement 90% and fast hard sulphur aluminic acid
Salt white cement (Zhengzhou City builds the production of Wen Tecai Science and Technology Ltd.) 10%.
Comparative example 4
A kind of modified cement, including following components in percentage by weight: white portland cement 70% and cracking resistance double quick water
Mud (production of three special cement Co., Ltd, lion group of Zhejiang) 30%.
Comparative example 5
A kind of modified cement, unlike the first embodiment, by white quick setting and rapid hardening high belite sulphur aluminic acid in this comparative example
Salt cement replaces with TW-PZ1 cement expansive material (production of Shandong Teng Wei building material Co., Ltd).
Comparative example 6
A kind of modified cement, unlike the first embodiment, by white quick setting and rapid hardening high belite sulphur aluminic acid in this comparative example
Salt cement replaces with the agent of TW-XW1 filament expansion (production of Shandong Teng Wei building material Co., Ltd).
Table 2
Modification cement in comparative example 1 is compounded using a kind of enhanced composite blend with white cement, is by ultra-fine
Silicon powder, high activity miberal powder and a variety of high performance additive Optimizations form, although having compared with the embodiment of the present invention 1 higher
Later strength, but whiteness is undesirable, and early strength is also not high enough.
Modification cement in comparative example 2 is compounded using a kind of fluoaluminic acid salt form quick hardening cement with white cement, fluoaluminic acid
Salt form quick hardening cement is that white cement accelerates rate of set, and there is no humidification, whiteness is also low.
Modification cement in comparative example 3 is compounded using a kind of typical white sulphate aluminium cement with white cement,
Only increase early strength, to later strength without obvious effect.
Modification cement in comparative example 4 is compounded using a kind of fluoaluminic acid salt quick-setting and rapid-hardening cement with white cement, will
Fluoaluminic acid salt quick-setting and rapid-hardening cement large scale mixes in silicate white cement, can only accelerate its setting time, and raising early stage is strong,
But it is unfavorable to later strength and whiteness.
Modification cement in comparative example 5 is compounded using a kind of common swelling agent with white cement, causes its swollen effect of rising,
It is late strong, later strength is slightly adversely affected, whiteness is significantly reduced.
Modification cement in comparative example 6 is compounded using filament expansion agent with white cement, and filament expansion agent is spiked into white
In color portland cement, effect of prestressed and intensity effect are quite a lot of compared with comparative example 5, but there will not be substantive improvement.
By comparing the performance of Tables 1 and 2 it is found that the comprehensive performance of modified white cement is relative to comparison in embodiment 1-9
The comprehensive performance of modified cement is more preferable in example 1-6, and method of modifying of the invention guarantees from enhancing, cracking resistance, whiteness and availability is each
Aspect comprehensive performance has bigger advantage than other method of modifying.
In addition, applicant of the present invention is also with rapid hardening sulphate aluminium cement (Wuxi De Sheng energy-saving building materials Co., Ltd
Production) 40% and white cement 60% compound, obtained modification cement can make modified cement rapid hardening, its physical property can not be detected,
Whiteness also will be greatly reduced (whiteness value 73), to also can not directly use in engineering.
Further, applicant of the present invention is also with the novel double-quick cement of aluminium sulfate (the refreshed concrete admixture in Shanghai
Co., Ltd's production, grey cement) 40% and white cement 60% compound, obtained modification cement can suddenly coagulate, and can not detect its object
Rationality (can only detect that whiteness value is 66), also can not directly use in engineering.
Table 3
By the data of table 3 it is found that aluminum sulfate and quick setting and rapid hardening high belite sulphate aluminium cement are used in combination as white
The modifying agent of color portland cement needs good matching relationship, and the component proportion of modified white cement exists in embodiment 10-19
In preferred scope of the present invention, embodiment 10-19 is good from comprehensive performances such as each age strength, whiteness, expansions；Embodiment 20 due to
Although excessively joined, quick setting and rapid hardening high belite sulphate aluminium cement early strength is fine, and the later period does not enhance, and whiteness is not
It is ideal；Although 21 whiteness of embodiment is kept as, due to it is excessive joined aluminum sulfate be setting time it is too fast, be unfavorable for applying
Work operation, each age strength is greatly reduced after also making 3 days.
Comparative example 7
A kind of modified cement, including following components in percentage by weight: white portland cement 89.9%, quick hardening cement
(production of Wuxi City Yao Wei construction material Co., Ltd, grey cement) 10% and aluminum sulfate 0.1%.
Comparative example 8
A kind of modified cement, including following components in percentage by weight: white portland cement 89%, quick hardening sulphoaluminate
White cement (Zhengzhou City builds the production of Wen Tecai Science and Technology Ltd.) 10% and aluminum sulfate 1%.
Comparative example 9
A kind of modified cement, including following components in percentage by weight: white portland cement 80%, cracking resistance double-quick cement
(production of three special cement Co., Ltd, lion group of Zhejiang) 19% and aluminum sulfate 1%.
Table 4
By comparing the performance of table 3 and table 4 it is found that the comprehensive performance of modified white cement is relative to right in embodiment 10-21
The comprehensive performance of modified cement is more preferable in ratio 7-9.
White quick setting and rapid hardening high belite sulphate aluminium cement is changed to by comparative example 7 compared with the embodiment of the present invention 10
The quick hardening cement of grey, first whiteness are reduced to 76, and each age strength also declines very much.
White quick setting and rapid hardening high belite sulphate aluminium cement is changed to by comparative example 8 compared with the embodiment of the present invention 11
White sulphate aluminium cement, although whiteness and early strength are guaranteed, later strength has larger gap.
Comparative example 9 is compared with the embodiment of the present invention 14 with the cracking resistance double-quick cement of fluoaluminic acid salt form instead of white fast solidifying fast
Hard high belite sulphate aluminium cement, although expansion character is amid a sharp increase, whiteness is greatly reduced, and later strength is also much lower.
In addition, applicant of the present invention is also with white portland cement 60%, rapid hardening sulphate aluminium cement, (Wuxi moral sage is built
Build energy-saving material Co., Ltd production) 39.9% and aluminum sulfate 0.1% compound, obtained modification cement compared with embodiment 19,
Whiteness is not only reduced to 70, and causes modified cement and suddenly coagulates, causes it that can not measure its property with standard detecting method
Can, use it can not directly in engineering.
Further, applicant of the present invention also with white portland cement 80%, the novel double-quick cement of aluminium sulfate (on
The production of the refreshed concrete admixture Co., Ltd in sea, grey cement) 18% and aluminum sulfate 2% compound, obtained modification cement with
Embodiment 15 is compared, the superposition of a large amount of sulphate aluminium cement and aluminum sulfate, is caused modified cement and is suddenly coagulated, causes its nothing
Method measures its performance with standard detecting method, use it can not directly in engineering, whiteness also has decreased to 65 from 83.
It should be noted that the white quick setting and rapid hardening high belite sulphate aluminium cement system in the present invention in embodiment 1-7
The mineral composition ingredient of standby clinker used is identical as the mineral composition ingredient of embodiment 7 in CN105330182A, and the present invention is real
Apply the mineral composition ingredient of white quick setting and rapid hardening high belite sulphate aluminium cement preparation in 8-16 clinker used with
The mineral composition ingredient of embodiment 8 is identical in CN105330182A, the high shellfish of white quick setting and rapid hardening in 9-21 of the embodiment of the present invention
The mineral composition of embodiment 9 in the mineral composition ingredient and CN105330182A of sharp spy's sulphate aluminium cement preparation clinker used
Ingredient is identical.
The detection method of involved cement performance in the present invention are as follows: strength test executes national standard GB/T
17671-1999 " Test method for strength of hydraulic cement mortar (ISO method) ", setting time test execution standard GB/T/T 1346-
2011 " cement normal consistency water consumption, setting time, the stability methods of inspection ", free swelling rate test execution building material industry mark
Quasi- JC/T313-2009 " expanding cement swelling rate test method ", Hunter whiteness value test execution GB/T 2015-2005 " white
Portland cement " test method in appendix A.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from of the invention
Many other change and modification can be made in the case where spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of modified white cement, which is characterized in that including following each component: white portland cement and white quick setting and rapid hardening are high
Belite sulphate aluminium cement；
The white quick setting and rapid hardening high belite sulphate aluminium cement prepares clinker used by the mineral of following weight percent
Composition: 22.67%~37.24%37.02%~46.21% C2S, 13.51%~26.33% CaSO4,
0.5%~4.6% f-CaO, 0.46%~3.04% C4AF, surplus are to mix mineralogical composition.
2. modified white cement according to claim 1, which is characterized in that the modified white cement includes following weight percent
The each component of ratio: white portland cement 60%~90%, white quick setting and rapid hardening high belite sulphate aluminium cement 10%~
40%.
3. modified white cement according to claim 1, which is characterized in that further include sulfuric acid in the modified white cement component
Aluminium；
Preferably, the modified white cement includes each component of following weight percent: white portland cement 60%~
89.9%, white quick setting and rapid hardening high belite sulphate aluminium cement 10%~39.9%, aluminum sulfate 0.1%~3%；
Preferably, the aluminum sulfate is selected from least one of anhydrous slufuric acid aluminium, five water aluminum sulfate or aluminum sulfate octadecahydrate.
4. modified white cement according to claim 1-3, which is characterized in that the high Baily of the white quick setting and rapid hardening
The strength grade of special sulphate aluminium cement is 42.5~82.5.
5. application of the described in any item modified white cements of claim 1-4 in building materials or construction.
6. a kind of building materials, which is characterized in that including the described in any item modified white cements of claim 1-4, the building materials are preferred
For artificial stone, architectural concrete, decoration mortar or decoration element.
7. a kind of method of modifying of white cement, which is characterized in that by white portland cement and white quick setting and rapid hardening high belite
Sulphate aluminium cement mixing；
The white quick setting and rapid hardening high belite sulphate aluminium cement prepares clinker used by the mineral of following weight percent
Composition: 22.67%~37.24%37.02%~46.21% C2S, 13.51%~26.33% CaSO4,
0.5%~4.6% f-CaO, 0.46%~3.04% C4AF, surplus are to mix mineralogical composition.
8. the method for modifying of white cement according to claim 7, which is characterized in that white portland cement accounting when mixing
60%~90%, white quick setting and rapid hardening high belite sulphate aluminium cement accounting 10%~40%.
9. the method for modifying of white cement according to claim 7, which is characterized in that further include that aluminum sulfate is added when mixing
Step；
Preferably, white portland cement accounting 60%~89.9% when mixing, white quick setting and rapid hardening high belite aluminium sulfate
Cement accounting 10%~39.9%, aluminum sulfate accounting 0.1%~3%；
Preferably, the aluminum sulfate is selected from least one of anhydrous slufuric acid aluminium, five water aluminum sulfate or aluminum sulfate octadecahydrate.
10. according to the method for modifying of the described in any item white cements of claim 7-9, which is characterized in that the white is fast solidifying fast
The strength grade of hard high belite sulphate aluminium cement is 42.5~82.5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019101696588 | 2019-03-06 | ||
| CN201910169658 | 2019-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109867460A true CN109867460A (en) | 2019-06-11 |
Family
ID=66922363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910282674.8A Pending CN109867460A (en) | 2019-03-06 | 2019-04-09 | Modified white cement and its method of modifying of application, white cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109867460A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116150A (en) * | 2019-12-25 | 2020-05-08 | 北京纽维逊建筑工程技术有限公司 | Low-temperature environment cement-based grouting material and preparation method thereof |
| CN111548104A (en) * | 2020-06-01 | 2020-08-18 | 中国建材检验认证集团北京天誉有限公司 | Low-water-absorption regenerative GRC material prepared from high belite sulphoaluminate cement |
| CN112811875A (en) * | 2021-01-16 | 2021-05-18 | 北京工业大学 | Quick-setting and quick-hardening white UHPC and preparation method thereof |
| CN115073104A (en) * | 2022-05-05 | 2022-09-20 | 湖南中联重科新材料科技有限公司 | White 3D printing mortar composition, white 3D printing mortar, and preparation method and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012092019A1 (en) * | 2010-12-29 | 2012-07-05 | W.R. Grace & Co.-Conn. | Waterproofing membrane |
| CN103664014A (en) * | 2013-12-19 | 2014-03-26 | 中国中材国际工程股份有限公司 | White sulphoaluminate cement and preparing method thereof |
| CN103819105A (en) * | 2013-12-16 | 2014-05-28 | 济南鲁新新型建材有限公司 | Ecological high-strength modified white cement and preparation method thereof |
| CN105330182A (en) * | 2014-02-24 | 2016-02-17 | 唐山北极熊建材有限公司 | White fast-setting, fast-hardening and high-belite sulphoaluminate cement clinker, and application and production technology thereof |
| CN106746799A (en) * | 2016-12-13 | 2017-05-31 | 刘勇英 | A kind of white cement and preparation method and application |
| CN106892631A (en) * | 2017-03-28 | 2017-06-27 | 柳州智美装饰工程有限责任公司 | Dry powder paint is fitted up in a kind of resistance to compression |
| CN106966679A (en) * | 2017-03-10 | 2017-07-21 | 同济大学 | A kind of ternary gelling system facing mortar and its application method |
| CN107382224A (en) * | 2017-07-14 | 2017-11-24 | 宿州典跃新型建筑材料有限公司 | A kind of macromolecule modified cement fund grinding stone |
| CN107935423A (en) * | 2017-11-22 | 2018-04-20 | 唐山北极熊建材有限公司 | Corrosion-resistant high belite sulphoaluminate cement clinker and preparation method and corrosion-resistant high belite sulphate aluminium cement and preparation method |
-
2019
- 2019-04-09 CN CN201910282674.8A patent/CN109867460A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012092019A1 (en) * | 2010-12-29 | 2012-07-05 | W.R. Grace & Co.-Conn. | Waterproofing membrane |
| CN103819105A (en) * | 2013-12-16 | 2014-05-28 | 济南鲁新新型建材有限公司 | Ecological high-strength modified white cement and preparation method thereof |
| CN103664014A (en) * | 2013-12-19 | 2014-03-26 | 中国中材国际工程股份有限公司 | White sulphoaluminate cement and preparing method thereof |
| CN105330182A (en) * | 2014-02-24 | 2016-02-17 | 唐山北极熊建材有限公司 | White fast-setting, fast-hardening and high-belite sulphoaluminate cement clinker, and application and production technology thereof |
| CN106746799A (en) * | 2016-12-13 | 2017-05-31 | 刘勇英 | A kind of white cement and preparation method and application |
| CN106966679A (en) * | 2017-03-10 | 2017-07-21 | 同济大学 | A kind of ternary gelling system facing mortar and its application method |
| CN106892631A (en) * | 2017-03-28 | 2017-06-27 | 柳州智美装饰工程有限责任公司 | Dry powder paint is fitted up in a kind of resistance to compression |
| CN107382224A (en) * | 2017-07-14 | 2017-11-24 | 宿州典跃新型建筑材料有限公司 | A kind of macromolecule modified cement fund grinding stone |
| CN107935423A (en) * | 2017-11-22 | 2018-04-20 | 唐山北极熊建材有限公司 | Corrosion-resistant high belite sulphoaluminate cement clinker and preparation method and corrosion-resistant high belite sulphate aluminium cement and preparation method |
Non-Patent Citations (3)
| Title |
|---|
| 石得中: "《世界精细化工产品技术经济手册》", 31 December 1988, 化学工业部科学技术情报研究所 * |
| 赵斌: "《建筑装饰材料》", 30 April 2005, 天津科学技术出版社 * |
| 金立虎: "《混凝土复合保温填充砌块及装饰保温贴面砌块生产与应用技术问答》", 31 May 2015, 中国建材工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116150A (en) * | 2019-12-25 | 2020-05-08 | 北京纽维逊建筑工程技术有限公司 | Low-temperature environment cement-based grouting material and preparation method thereof |
| CN111548104A (en) * | 2020-06-01 | 2020-08-18 | 中国建材检验认证集团北京天誉有限公司 | Low-water-absorption regenerative GRC material prepared from high belite sulphoaluminate cement |
| CN112811875A (en) * | 2021-01-16 | 2021-05-18 | 北京工业大学 | Quick-setting and quick-hardening white UHPC and preparation method thereof |
| CN115073104A (en) * | 2022-05-05 | 2022-09-20 | 湖南中联重科新材料科技有限公司 | White 3D printing mortar composition, white 3D printing mortar, and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109867460A (en) | Modified white cement and its method of modifying of application, white cement | |
| KR100799949B1 (en) | Non-efflorescing cementitious bodies | |
| CN107840635B (en) | Additive for inorganic pervious concrete | |
| CN104045307B (en) | A kind of facing mortar and preparation method thereof | |
| CN106800384B (en) | A kind of composite modified method for improving magnesium oxychloride cementing material performance | |
| US10167229B2 (en) | Quick-drying building material composition based on a mineral hybrid binder | |
| WO2014079252A1 (en) | Retarder suitable for quick setting and rapid hardening magnesium phosphate cement system and methods of use thereof | |
| CN108529994A (en) | A kind of unitary system special cement gravity flow self-leveling floor material | |
| CN110759699B (en) | Bottom layer plastering gypsum and preparation method thereof | |
| CN111943626A (en) | Gypsum-based wall leveling material and preparation method and use method thereof | |
| CN109809753A (en) | Corrosion-resistant inorganic artificial stone of cracking resistance and its preparation method and application | |
| CN106673577A (en) | Gypsum-based ceramic tile binder and preparation method thereof | |
| JP2000211961A (en) | Hydraulic composition having self-fluidity | |
| CN109824329A (en) | Self-compaction leveling concrete and its preparation method and application | |
| KR101877528B1 (en) | Cement composition having rapid hardening properties for runway reparing and runway repairing method using the same | |
| CN107285718B (en) | Lime-based micro-shrinkage grouting material composition and preparation method thereof | |
| CN105330238A (en) | Cement-based waterproof self-leveling material with manufactured sand sieve backing material being all aggregate | |
| CN108585698A (en) | A kind of special joint filling mortar of light cellular partition board | |
| CN109650771A (en) | A kind of reducing and anti-cracking reinforcing agent, C50 machine-made sand concrete and preparation method | |
| CN111689747B (en) | 3D printed color decoration mortar | |
| JP3478108B2 (en) | Hydraulic coloring finishing material composition | |
| CN112299808A (en) | High-performance facing mortar and preparation method thereof | |
| CN106746880A (en) | A kind of high-performance permeable concrete cementing agent and its application | |
| CN109678435A (en) | Utilize the GRC waistcloth wallboard and preparation method thereof of low-quality recycled fine aggregate production | |
| CN111848063B (en) | High belite sulphoaluminate cement-based hardener for concrete ground and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |