CN102775091A - Special moisture-holding thickening agent for masonry mortar and production method thereof - Google Patents
Special moisture-holding thickening agent for masonry mortar and production method thereof Download PDFInfo
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Abstract
The invention relates to a special moisture-holding thickening agent for masonry mortar and a production method thereof. The special moisture-holding thickening agent is composed of a moisture-holding thickening component, a water reducing component and an enhancing component, wherein the moisture-holding thickening component is prepared from the following materials in parts by weight: 17-22 parts of desulfurized gypsum, 45-55 parts of secondary fly ash and 25-35 parts of hydroxypropyl methyl cellulose; the water reducing component is prepared from 15-25 parts of wood celluloses in parts by weight; and the enhancing component is prepared from the following materials in parts by weight: 18-22 parts of carbide slag, 7-13 parts of calcium lignosulphonate, 750-830 parts of fine sand and 57-63 parts of primary fly ash. Through applying the special moisture-holding thickening agent to masonry mortar, the adhesiveness and bonding strength between a pressed concrete brick and masonry mortar can be improved, the purposes of reducing the overall shrinkage of a pressed concrete brick masonry and improving the shearing strength of the masonry are achieved, and the problem that micro-cracks appear on wall bodies because the binding power between a pressed concrete brick and masonry mortar is poor can be solved.
Description
Technical field
The present invention relates to material of construction, be specifically related to special-purpose water-retaining admixture of a kind of masonry mortar and preparation method thereof.
Background technology
According to the regulation and the requirement of overall plan for land use of relevant laws rules such as Land Administration Law of the People's Republic of China, China strict control clay brick manufacturing enterprise fetch earth scope and scale are forbidden to occupy cultivated land and are puted up a kiln or on the arable land, fetch earth without authorization.Forbid supplying ground to newly-built, renovating and enlarging solid clay brick production project, restriction supplies ground to hollow clay-ware production project.Original brickkiln is progressively being eliminated, and the output of clay brick is being successively decreased year by year, is badly in need of building material and fills a vacancy.Pressed concrete solid brick and perforated brick have become the first-selected product of instead of clay solid brick with characteristics such as its outstanding of fine quality, inexpensive, joint soil, sharp useless, energy-conservation and environmental protection.But construction unit in use finds; Pressed concrete brick smooth surface; Masonry panel can not settle at one go, and its water absorption character and surface physical properties and clay brick have very big difference, and it is more lower slightly than unselected clay brick structures to use ordinary mortar to build the slip resistance of pressed concrete brick structures by laying bricks or stones; Microfracture also appears in body of wall easily, influences the functions of use in house.
Draw after technician's analysis-by-synthesis and produce the former of above-mentioned defective because following 4 points: the one, pressed concrete brick self shrinkage value is big; The dried shrinkage value of pressed concrete brick structures is strengthened; The inner tensile stress that produces of masonry; And masonry shear strength is lower, and masonry holds can't stand, just the crack possibly occur; The 2nd, the water-intake rate of concrete brick (compacting or vibratory compaction) is higher than clay brick; But absorption speed is slow; Too high water-intake rate and water ratio will cause that the dried shrinkage value of concrete brick strengthens, so should suitably control the wall brick water ratio, the pressed concrete brick water ratio of last wall is advisable with about 10%; The 3rd, the concrete brick surface ratio clay brick of compacting is smooth; Littler with the cohesive force of traditional mortar than clay brick; Unit in charge of construction also adopts traditional mortar when building by laying bricks or stones and wipe one's face; Cause pressed concrete brick structures degradation, also influenced promoting the use of of pressed concrete brick, need when building the pressed concrete brick by laying bricks or stones, adopt dedicated mortar to build by laying bricks or stones; The 4th, flyash large usage quantity in the pressed concrete brick, aggregate is less, causes pressed concrete brick shrinkage value bigger.Because above factor, must improve the performance of the masonry mortar that is used for solid brick.
Summary of the invention
It is poor to the objective of the invention is to pressed concrete brick and common masonry mortar cohesive force, and shear strength of masonry hangs down the problem that possibly occur microfracture with body of wall, and a kind of special-purpose water-retaining admixture of masonry mortar and working method thereof is provided.
Technical solution of the present invention is: special-purpose water-retaining admixture of a kind of masonry mortar and working method thereof; It is made up of water-keeping thickening component, diminishing component and enhancement component; The water-keeping thickening component is processed by 17～22 parts of desulfurated plasters, 45～55 parts of second class powered coal ashes and 25～35 parts of Vltra tearss of calculating by weight; The diminishing component is processed by 15～25 parts of wood fiber elements that calculate by weight; Enhancement component is processed by 18～22 parts of carbide slags, 7～13 parts of calcium lignin sulphonates, 750～830 parts of fine sands and 57～63 parts of first level flour coal ash of calculating by weight, and concrete production stage is:
1), with second class powered coal ash and desulfurated plaster mixing and stirring mutually;
2), carbide slag is added into heating while stirring in the mixture of second class powered coal ash and desulfurated plaster, be heated to 90～100 degree;
3), fine sand, first level flour coal ash and calcium lignin sulphonate are added into mixing and stirring in carbide slag after the heating, second class powered coal ash, the desulfurated plaster mixture;
4), thing temperature to be mixed reduces to 20 degree, at last Vltra tears and wood fiber element is added into the powdery masonry mortar special use water-retaining admixture that mixing and stirring is processed in the said mixture, portion package.
The granularity of fine sand is diameter 0.5～1.5mm.
The particle diameter of desulfurated plaster is 30～50mm, the about 140 μ m of granularity.
Technique effect of the present invention is: in masonry mortar, adopt special-purpose water-retaining admixture; Can improve the adhesivity and the cohesive strength of pressed concrete brick and masonry mortar; Reach and reduce pressed concrete brick structures whole contraction and the purpose that improves masonry shear strength, solve pressed concrete brick and masonry mortar cohesive force difference and cause body of wall the problem of microfracture to occur.It has the slurry consistency of increasing, reduces delamination degree, improves water-retentivity, increases functions such as mortar adhesivity and cohesive strength.The technical indicator of mixing the mortar of special-purpose water-retaining admixture reaches water-retentivity>=90%, delamination degree≤20mm, and shrinking percentage≤0.2%, tensile bond strength improve more than 130%, and ultimate compression strength, impervious, anti-freezing property all can satisfy request for utilization.
Inorganic components in the water-keeping thickening component can absorb the free water in the mortar, and it is bigger that the mortar water retention capacity is improved, and improves the cohesive strength of mortar and petrifying water clod simultaneously; Organic composition in the water-keeping thickening component has excellent wetting capacity, dispersiveness, cohesiveness, thickening property, emulsifying property, water-retentivity and film-forming properties, significantly improves water-retentivity, adhesivity, the tensile bond strength of mortar; The diminishing component reduces the oilness of water consumption, increase mortar under the situation that guarantees slurry consistency; Enhancement component can improve mortar strength, cohesive strength, when adhesivity, denseness, delamination degree, water-retentivity to mortar do not have influence basically.
Organic composition in the water-keeping thickening component is can not consumption too much, otherwise can reduce the ultimate compression strength of mortar.
Embodiment
Embodiment one, and the special-purpose water-retaining admixture of masonry mortar is processed by carbide slag 21 weight parts, calcium lignin sulphonate 9 weight parts, Vltra tears 29 weight parts, plain 20 weight parts of wood fiber, second class powered coal ash 51 weight parts, first level flour coal ash 59 weight parts, fine sand 790 weight parts, desulfurated plaster 19 weight parts in the present embodiment.
Embodiment two, and the special-purpose water-retaining admixture of masonry mortar is processed by carbide slag 19 weight parts, calcium lignin sulphonate 11 weight parts, Vltra tears 31 weight parts, plain 19 weight parts of wood fiber, second class powered coal ash 49 weight parts, first level flour coal ash 61 weight parts, fine sand 780 weight parts, desulfurated plaster 20 weight parts in the present embodiment.
Embodiment three, and the special-purpose water-retaining admixture of masonry mortar is processed by carbide slag 18 weight parts, calcium lignin sulphonate 13 weight parts, Vltra tears 25 weight parts, plain 25 weight parts of wood fiber, second class powered coal ash 45 weight parts, first level flour coal ash 63 weight parts, fine sand 750 weight parts, desulfurated plaster 22 weight parts in the present embodiment.
Embodiment four, and the special-purpose water-retaining admixture of masonry mortar is processed by carbide slag 22 weight parts, calcium lignin sulphonate 7 weight parts, Vltra tears 35 weight parts, plain 15 weight parts of wood fiber, second class powered coal ash 55 weight parts, first level flour coal ash 57 weight parts, fine sand 820 weight parts, desulfurated plaster 17 weight parts in the present embodiment.
The actual proof of using, water-retaining admixture can improve mortar performance in following several respects:
(1) increase workability: special-purpose water-keeping thickening material helps to increase glutinous the gathering property of mortar, makes mortar soft and not diffusing, easy handling;
(2) improve cohesive force: because the mortar deliquescing can contact difficult drop-off preferably with basic unit;
(3) water retentivity of mortar is good, is difficult for bleeding and segregation: special-purpose water-keeping thickening material can make mixing water be evenly distributed in the mortar, and can maintain a long-term stability; Bleeding not; Simultaneously, owing to increased the viscosity of slurry, making gathers materials waits particle to be difficult for moving; Thereby effectively prevented segregation, make mortar remain homogeneity preferably;
(4) improve impermeability and frost resistance: be that water adsorption in the mortar is at particle surface; Reduced the free water amount in the mortar; Thereby also reduced the hole that therefore stays, improve the pore structure of sclerosis mortar, thereby improved the impermeability and the frost resistance of mortar;
(5) splitting resistance of raising mortar: special-purpose water-keeping thickening material can make mortar in the long time, keep certain moisture;
(6) motar more is prone to construct: become soft sticky, relatively good smearing because of water-keeping thickening material makes mortar; Owing to have water retention preferably, prevent that effectively moisture in the mortar from being siphoned away by base material or evaporate.
Test to the special-purpose water-retaining admixture of masonry mortar:
One, experiment purpose:
1) special-purpose water-keeping thickening agent material is selected, formulation optimization is definite and performance
Study of the influence of each component of special-purpose water-retaining admixture, through preferred reasonable composition and the prescription of confirming the special-purpose water-retaining admixture of masonry mortar to denseness, delamination degree, water-retentivity and the mechanical property of same strength grade mortar.
2) the confirming of special-purpose water-retaining admixture volume scope and the optimum mix amount in the different intensity grades masonry mortar
Special-purpose water-keeping thickening material is mixed respectively in the masonry mortar of different intensity grades; Carry out workability (denseness, water-retentivity, delamination degree, adhesivity) research and Mechanical Properties (ultimate compression strength, tensile bond strength), and compare with the cement lime mortar performance.Through test data analyzer, confirm special-purpose water-retaining admixture volume scope of each strength grade mortar and the optimum mix amount.
3) the special-purpose water-keeping thickening material of research is to the influence of mortar weather resistance
Special-purpose water-keeping thickening material is mixed in the mortar, study its influence, carry out the performance comparison test with ordinary mortar to mortar drying shrinkage, splitting resistance and frost resistance.
4) subzero temperature of mortar and the subzero temperature warm rule of development of intensity afterwards of becoming a full member under research special-purpose water-retaining admixture and the frostproofer combined action is for the winter construction of masonry project provides technical support.
5) research mix special-purpose water-retaining admixture mortar to pressed concrete brick structures performance impact
Special-purpose water-retaining admixture is mixed in the mortar; Build the pressed concrete brick structures by laying bricks or stones; Research pressed concrete solid brick perforated brick, concrete porous brick masonry mechanical property; And compare with the mechanical property of cement and lime masonry mortar pressed concrete brick structures, for designing unit, construction department correct design, unit in charge of construction correctly use the pressed concrete brick that technical support is provided, to guarantee the project of vital and lasting importance of construction work.
6) the special-purpose water-retaining admixture mechanism of mortar research
Employing ESEM and mercury penetration method have been studied the microstructure of the mortar of mixing the special-purpose water-retaining admixture of mortar, analyze the mechanism of action of special-purpose water-retaining admixture.
7) plastering mortar test
On the experimental study basis, the plastering mortar of mixing the special-purpose water-retaining admixture of mortar has been carried out manual work wiped one's face, and analyzed, for application specific water-retaining admixture in the actual engineering provides reference frame.
Two, mortar performance experiment
1) experimental subjects and instrument:
(1) the special-purpose water-retaining admixture preparation of moulding mortar test specimen, mortar ultimate compression strength, mortar control sample and weather resistance (impermeability, frost resistance, shrinking percentage, splitting resistance) test specimen etc. amount to mortar 10 m
3, all kinds of test specimen more than 3420 groups.
(2) group surplus the moulding SEM ESEM 30.
(3) plastering mortar test: mortar amount 20m
3
2) experiment content:
(1) mix special-purpose water-retaining admixture mortar performance and with the cohesive strength of pressed concrete brick, and carried out performance comparison with the cement and lime mixed mortar;
(2) mix the contraction and the resistance to cleavage of special-purpose water-retaining admixture mortar; Shaft center compression resistant and slip resistance to mixing the pressed concrete brick structures that special-purpose water-retaining admixture mortar builds by laying bricks or stones make an experiment, and have analyzed the difference of measured value and calculated value;
(3) adopt the microscopic test measuring technology, studied the mortar microtexture of mixing special-purpose water-retaining admixture, and then study the mechanism of action of mixing special-purpose water-retaining admixture;
(4) to adopting the special-purpose water-retaining admixture plastering mortar of mortar to carry out artificially spraying the test of wiping one's face with machine.
3) mortar experiment conclusion:
Through the starting material of the special-purpose water-retaining admixture of pressed concrete masonry mortar are selected, formulating of recipe and confirm, special-purpose water-retaining admixture to the mortar performance influence, mix the special-purpose water-retaining admixture of mortar mortar performance, mix the manual work of the special-purpose water-retaining admixture mortar of mortar wipe one's face test, theoretical analysis work such as test, draw to draw a conclusion.
(1) the special-purpose water-retaining admixture of mortar has the slurry consistency of increasing, reduces delamination degree, improves water-retentivity, increases the adhering function of mortar.
(2) adopt the special-purpose water-retaining admixture of masonry mortar, cement, flyash (replacing cement 10%～30%), can prepare the mortar of M5～M20 and the high comprehensive performance of mortar without lime.
(3) mix the special-purpose water-retaining admixture of mortar (consumption be gelling material 1.2%) masonry mortar tensile bond strength between 0.21～0.37MPa; Cement lime mortar tensile bond strength than same intensity grade improves 61.5%～68.2%, and ultimate compression strength reaches design grade simultaneously.
(4) along with the raising of strength classes of mortar, the masonry mortar dry shrinkage of mixing the special-purpose water-retaining admixture of mortar is downward trend, and the mortar of strength grade M10～M15 is through 50 freeze-thaw cycle, and the loss of strength rate is less than 25%, and mass loss rate is less than 5%.
The masonry mortar cracking time of (5) mixing special-purpose water-retaining admixture prolongs than the cement and lime mixed mortar to some extent; Fracture width reduces by 45%; Total weight that ftractures is merely 26.6; The Crack Control rate reaches 73.74%, and the special-purpose water-retaining admixture of the mortar of explanation mixes the resistance to cleavage that can well improve mortar.
4) experimental summary: the mortar that experiment showed, the special-purpose water-retaining admixture of admixture masonry mortar has the following advantages:
(1) mortar of special-purpose water-retaining admixture of admixture masonry mortar and frostproofer can have gain in strength preferably under-5 ℃ of perseverances and-10 ℃ of conditions; It is basic identical that the intensity of mortar-7+28d and mark are supported 28d intensity, and the block materials for wall builds by laying bricks or stones in the time of can satisfying-5 ℃ and-10 ℃ of conditions.
(2) adopt the special-purpose water-retaining admixture of masonry mortar, cement, flyash (replacing cement 10%～30%); Just can prepare the masonry mortar of M5～M20 without lime; The mortar tensile bond strength is between 0.21～0.37MPa; Cement lime mortar tensile bond strength than same intensity grade improves 61.5%～68.2%, and ultimate compression strength reaches design grade simultaneously.
The mortar cracking time of (3) mixing the special-purpose water-retaining admixture of masonry mortar prolongs than the cement and lime mixed mortar to some extent; Fracture width reduces by 45%; Total weight that ftractures is merely 26.6; The Crack Control rate reaches 73.74%, and the special-purpose water-retaining admixture of mortar mixes the resistance to cleavage that can well improve mortar.
Three, pressed concrete solid brick masonry test:
1) experimental subjects: used cement is P.C32.5, and sand is medium sand, mortar proportioning, cement: sand=3:7,60 groups of pressed concrete brick structures axial compressive strengths, 90 groups of slip resistance masonries.
1) experiment purpose: mix the pressed concrete brick structures shaft center compression resistant that the special-purpose water-retaining admixture mortar of mortar builds by laying bricks or stones and the mechanism of action of slip resistance, mortar special use water-retaining admixture.
2) experiment conclusion: the shearing resistance failing load value of mixing the masonry mortar pressed concrete solid brick masonry of 1.2% special-purpose water-retaining admixture is 1.7 times that do not mix; The shearing resistance failing load value of mixing the masonry mortar pressed concrete solid brick masonry of 1.4% special-purpose water-retaining admixture is 2.2 times that do not mix, and is visible, mixes the shearing resistance failing load that special-purpose water-retaining admixture can significantly improve pressed concrete solid brick masonry.
3) experimental result is summed up:
(1) admixture the ultimate compression strength of masonry mortar pressed concrete brick structures of special-purpose water-retaining admixture greater than the ultimate compression strength of cement and lime mixed mortar pressed concrete brick structures; But increase rate explains that 1%～5% special-purpose water-retaining admixture is little to the ultimate compression strength raising effect of pressed concrete brick structures.
(2) strength grade when mortar is constant, improves the strength grade of pressed concrete brick, and the ultimate compression strength of masonry improves, but increasing degree is little.
(3) adopt the cement and lime mixed mortar with admixture during the masonry mortar of special-purpose water-retaining admixture, the average of relatives of pressed concrete brick structures compressive strength test value and calculated value explains that above being 1.00 the pressed concrete brick can be used for brick mix structure.
When (4) adopting cement lime mortar, the shear strength test value of pressed concrete porous brick masonry is 1.07 times of calculated value, and pressed concrete solid brick masonry shear strength trial value is 1.03 times of calculated value; And when adopting the masonry mortar of the special-purpose water-retaining admixture of admixture; The shear strength test value of pressed concrete porous brick masonry is 1.27 times of calculated value; Pressed concrete solid brick masonry shear strength trial value is 1.21 times of calculated value, and both all are higher than pressed concrete perforated brick and solid brick masonry that cement lime mortar is built by laying bricks or stones.Therefore pressed concrete perforated brick and solid brick shear strength of masonry are relatively safe by modular formula calculating.Mix the ultimate compression strength of the pressed concrete brick structures that the ultimate compression strength of mortar and the pressed concrete brick structures of the special-purpose water-retaining admixture of masonry mortar builds by laying bricks or stones greater than the cement and lime mixed mortar; When adopting the cement and lime mixed mortar and mixing mortar special use water-retaining admixture mortar; It is 1.00 that the average of relatives of masonry compression strength trial value and calculated value surpasses, and the compressive strength test value of pressed concrete brick structures and calculated value are higher than the brick structures ultimate compression strength that the cement and lime mixed mortar is built by laying bricks or stones.
The shearing resistance failing load value of (5) mixing the masonry mortar pressed concrete solid brick masonry of 1.2% special-purpose water-retaining admixture is 1.7 times of not mixing; The shearing resistance failing load value of mixing the masonry mortar pressed concrete solid brick masonry of 1.4% special-purpose water-retaining admixture is 2.2 times that do not mix; Mix the shearing resistance failing load that special-purpose water-retaining admixture can significantly improve pressed concrete solid brick masonry; Slip resistance obviously will be higher than cement lime mortar pressed concrete brick structures; Raising rate and not quite identical in the pressed concrete brick structures that the mortar of different intensity grades is built by laying bricks or stones, raising rate at 12% (strength classes of mortar M10) to 25% (strength classes of mortar M5).Reason is that special-purpose water-retaining admixture has increased the cohesive strength of mortar and pressed concrete brick, and shear strength of masonry is improved, simultaneously, mix special-purpose water-retaining admixture masonry mortar to pressed concrete brick structures slip resistance raising rate greater than ultimate compression strength raising rate.
Four, the special-purpose water-retaining admixture experiment of masonry mortar proof: to the rule that influences of slurry consistency, delamination degree, water-retentivity, adhesivity, tensile bond strength, intensity etc., drawn the mechanism of action of following special-purpose water-retaining admixture through special-purpose water-keeping thickening component, diminishing component, enhancement component etc. in the special-purpose water-retaining admixture of test masonry mortar:
(1) effect of special-purpose water-keeping thickening component is that ether of cellulose can form one deck wetting film in sand-cement slurry; Make whole sand-cement slurry system become stable; The release rate of the moisture of ether of cellulose parcel is very slow; Make the dry moisture evaporated of sand-cement slurry system have only a very little part, and most moisture is retained in gelling material continuation generation hydration reactions such as sand-cement slurry inside and cement, has guaranteed the abundant aquation of gelling material such as cement.Add ether of cellulose in the G mortar and can improve the workability of mortar, film forming once again in masonry mortar has improved the snappiness and the cohesive strength of masonry mortar; The water retention of ether of cellulose then can make the abundant aquation of hydrated product such as cement in the mortar, thereby improves the mortar internal structure.
(2) film forming in hydrated cementitious or after the aquation of the polymkeric substance in masonry mortar, their are assembled becomes ring network shape structure, has improved the snappiness and the cohesive strength of masonry mortar.
(3) special-purpose water-keeping thickening component has the bleed effect, and the existence of special-purpose water-keeping thickening component makes its film forming at the interface between bubble and grout, and the existence of these moistening films can be stablized the bubble of introducing.Special-purpose water-keeping thickening component mix the tangible distribution of aperture structure in the sand-cement slurry that changed, make that the quantity of minute aperture increases in the mortar, mean pore size reduces, total porosity increases.This is because microbubble is introduced in the bleed effect meeting of ether of cellulose in mortar, and after the sand-cement slurry sclerosis, these bubble formation hole independent of each other has been blocked pore.
(4) the huge side chain of diminishing component has avoided cement owing to the flucculation structure that " uniting " produces, and discharges water wherein, and then has increased the flowability of mortar.When mortar mix ratio is constant, significantly improve the flowability of mortar, increase the denseness of mortar, delamination degree is slightly increased; When mobile and cement consumption is constant, reduce water consumption, reduce wc, improve the intensity and the cohesive strength of mortar.
Five, applying unit economic benefit:
By using 3.3kg/m in the different intensity grades masonry mortar
3, use special-purpose water-retaining admixture to substitute whole lime putties after, not only can practice thrift cement, make the masonry mortar cost reduce by 5～10 yuan/m
3, and mortar each item physical and mechanical property all satisfies code requirement, and mortar working is functional, and mortar and pressed concrete brick adhesivity, cohesive strength and masonry shear strength can effectively improve speed of application and guarantee construction quality.Therefore the special-purpose water-retaining admixture of masonry mortar can have to applying unit and brings remarkable economic efficiency.
Six, society and environmental benefit analysis:
The special-purpose water-retaining admixture of this kind replace lime cream fully in mortar, thus limestone resource practiced thrift.Because limy not in the special-purpose water-retaining admixture is used it in building masonry mortar and the motar, can avoid that mortar flakes because of factors such as lime burning or maldigestion cause screed, common quality defects such as explosion and cracking; Do not contain air entrapment agent in the special-purpose water-retaining admixture simultaneously, thereby avoided causing the generation of shortening phenomenon work-ing life of mortar strength reduction and buildings owing to bleed is improper.
(1) because the special-purpose water-retaining admixture tack of masonry mortar is good, reduce the ash that falls of mortar and measure, unit in charge of construction's construction civilization degree increases, and the mortar cost reduces.
(2) adopt the mortar of the special-purpose water-retaining admixture of masonry mortar, flyash, cement preparation to use flyash, practiced thrift resource, the protection environment, product meets national industrial policies.
(3) adopt the mortar of special-purpose water-retaining admixture to have less delamination degree (delamination degree is less than 2cm), workability is good, does not produce bleeding and demixing phenomenon; The water-retentivity of mortar can guarantee that more than 90% the aquation of cement continues to carry out; Mortar and pressed concrete brick have good adhesivity, reduce and to build by laying bricks or stones and the amount of coming off of mortar when plastering; The cohesive strength of mortar and pressed concrete brick is high, and construction quality increases substantially.
(4) adopt the pressed concrete brick structures of the special-purpose water-keeping thickening material of pressed concrete masonry mortar to have good performance; This will promote the widespread adoption of pressed concrete brick greatly; Not only promote the development of materials for wall; The pulling local economy, and rationally use the pressed concrete brick to provide fundamental basis and design, construct guide for severe cold area.
(5) the special-purpose water-retaining admixture of masonry mortar does not have waste water and waste gas generation when producing, the special-purpose water-retaining admixture of 10000 tons of masonry mortars of every production, and 12000 tons in alternative lime, about 2400 tons with coal of saving lime calcinings reduce CO
2Discharge about 10000 tons, meet national energy and environmental protection policy.
(6) desulfurated plaster is that coal-fired or oily industrial enterprise is after administering sulfur in smoke and the industry by-product gypsum that obtains; Use it to do raw material and not only effectively promoted further developing of national environmental protection recycling economy; But also can reduce the produced quantity of ore cream greatly, protect national resource.
The present invention is according to company standard " flyash concrete brick building mortar special-purpose K powder " Q/M001-2009, the detection of the product of trial production cold ground construction engineering quality inspection center through the Heilongjiang Province, and performance reaches the requirement of company standard.
" the special-purpose K powder of flyash concrete brick building mortar " Q/M001-2009
" concrete small size hollow building block and concrete brick masonry mortar " JC 860-2008
" masonry mortar softening agent " JG/T 164-2004
Claims (7)
1. special-purpose water-retaining admixture of masonry mortar and working method thereof; It is characterized in that: it is made up of water-keeping thickening component, diminishing component and enhancement component; The water-keeping thickening component is processed by 17～22 parts of desulfurated plasters, 45～55 parts of second class powered coal ashes and 25～35 parts of Vltra tearss of calculating by weight; The diminishing component is processed by 15～25 parts of wood fiber elements that calculate by weight; Enhancement component is processed by 18～22 parts of carbide slags, 7～13 parts of calcium lignin sulphonates, 750～830 parts of fine sands and 57～63 parts of first level flour coal ash of calculating by weight, and concrete production stage is:
1), with second class powered coal ash and desulfurated plaster mixing and stirring mutually;
2), carbide slag is added into heating while stirring in the mixture of second class powered coal ash and desulfurated plaster, be heated to 90～100 degree;
3), fine sand, first level flour coal ash and calcium lignin sulphonate are added into mixing and stirring in carbide slag after the heating, second class powered coal ash, the desulfurated plaster mixture;
4), thing temperature to be mixed reduces to 20 degree, at last Vltra tears and wood fiber element is added into the powdery masonry mortar special use water-retaining admixture that mixing and stirring is processed in the said mixture, portion package.
2. special-purpose water-retaining admixture of masonry mortar as claimed in claim 1 and working method thereof, the granularity that it is characterized in that said fine sand is diameter 0.5～1.5mm.
3. special-purpose water-retaining admixture of masonry mortar as claimed in claim 1 and working method thereof, the particle diameter that it is characterized in that said desulfurated plaster is 30～50mm.
4. special-purpose water-retaining admixture of masonry mortar as claimed in claim 1 and working method thereof is characterized in that the special-purpose water-retaining admixture of said masonry mortar processed by carbide slag 21 weight parts, calcium lignin sulphonate 9 weight parts, Vltra tears 29 weight parts, plain 20 weight parts of wood fiber, second class powered coal ash 51 weight parts, first level flour coal ash 59 weight parts, fine sand 790 weight parts, desulfurated plaster 19 weight parts.
5. special-purpose water-retaining admixture of masonry mortar as claimed in claim 1 and working method thereof is characterized in that the special-purpose water-retaining admixture of said masonry mortar processed by carbide slag 19 weight parts, calcium lignin sulphonate 11 weight parts, Vltra tears 31 weight parts, plain 19 weight parts of wood fiber, second class powered coal ash 49 weight parts, first level flour coal ash 61 weight parts, fine sand 780 weight parts, desulfurated plaster 20 weight parts.
6. special-purpose water-retaining admixture of masonry mortar as claimed in claim 1 and working method thereof is characterized in that the special-purpose water-retaining admixture of said masonry mortar processed by carbide slag 18 weight parts, calcium lignin sulphonate 13 weight parts, Vltra tears 25 weight parts, plain 25 weight parts of wood fiber, second class powered coal ash 45 weight parts, first level flour coal ash 63 weight parts, fine sand 750 weight parts, desulfurated plaster 22 weight parts.
7. special-purpose water-retaining admixture of masonry mortar as claimed in claim 1 and working method thereof is characterized in that the special-purpose water-retaining admixture of said masonry mortar processed by carbide slag 22 weight parts, calcium lignin sulphonate 7 weight parts, Vltra tears 35 weight parts, plain 15 weight parts of wood fiber, second class powered coal ash 55 weight parts, first level flour coal ash 57 weight parts, fine sand 820 weight parts, desulfurated plaster 17 weight parts.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108503264A (en) * | 2018-04-16 | 2018-09-07 | 柳州市柳晶科技股份有限公司 | A kind of cement thickener prepared using Industrial Solid Waste |
| CN113571138A (en) * | 2021-08-10 | 2021-10-29 | 郑州大学 | Alkali-activated mortar bonding performance analysis method based on gray correlation and weight contribution |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109180061A (en) * | 2018-09-20 | 2019-01-11 | 翟琳 | A kind of premixing mortar water-retaining admixture |
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| JP2000128594A (en) * | 1998-10-28 | 2000-05-09 | Chugai Ro Co Ltd | Slurry additive |
| JP2000256054A (en) * | 1999-03-11 | 2000-09-19 | Nichiha Corp | Inorganic sheet and its production |
| CN1335280A (en) * | 2001-07-24 | 2002-02-13 | 上海世高科技有限公司 | Coagulation-regulating gelatinizer for premixed mortar and its production process |
| CN101704645A (en) * | 2009-11-30 | 2010-05-12 | 俞锡贤 | Water-holding thickening agent of mortar |
| CN102515621A (en) * | 2011-12-02 | 2012-06-27 | 南京工业大学 | Gypsum-based thickening water-retaining agent and preparation method and application thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000128594A (en) * | 1998-10-28 | 2000-05-09 | Chugai Ro Co Ltd | Slurry additive |
| JP2000256054A (en) * | 1999-03-11 | 2000-09-19 | Nichiha Corp | Inorganic sheet and its production |
| CN1335280A (en) * | 2001-07-24 | 2002-02-13 | 上海世高科技有限公司 | Coagulation-regulating gelatinizer for premixed mortar and its production process |
| CN101704645A (en) * | 2009-11-30 | 2010-05-12 | 俞锡贤 | Water-holding thickening agent of mortar |
| CN102515621A (en) * | 2011-12-02 | 2012-06-27 | 南京工业大学 | Gypsum-based thickening water-retaining agent and preparation method and application thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108503264A (en) * | 2018-04-16 | 2018-09-07 | 柳州市柳晶科技股份有限公司 | A kind of cement thickener prepared using Industrial Solid Waste |
| CN108503264B (en) * | 2018-04-16 | 2020-07-10 | 柳晶科技集团(常州)股份有限公司 | Cement thickener prepared from industrial solid wastes |
| CN113571138A (en) * | 2021-08-10 | 2021-10-29 | 郑州大学 | Alkali-activated mortar bonding performance analysis method based on gray correlation and weight contribution |
| CN113571138B (en) * | 2021-08-10 | 2024-03-29 | 郑州大学 | Grey correlation and weight contribution-based alkali-activated mortar bonding performance analysis method |
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| CN102775091B (en) | 2014-01-15 |
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