CN109400057A - A kind of M5 thin layer dry-mix and its preparation and application - Google Patents

A kind of M5 thin layer dry-mix and its preparation and application Download PDF

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Publication number
CN109400057A
CN109400057A CN201811330441.2A CN201811330441A CN109400057A CN 109400057 A CN109400057 A CN 109400057A CN 201811330441 A CN201811330441 A CN 201811330441A CN 109400057 A CN109400057 A CN 109400057A
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China
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parts
water
alkaline residue
thin layer
cement
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肖超
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Chengdu Acer Building Materials Ltd By Share Ltd
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Chengdu Acer Building Materials Ltd By Share Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00017—Aspects relating to the protection of the environment
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • C04B2111/00508—Cement paints
    • 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
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
    • 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
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention belongs to field of mortar, specifically disclose a kind of M5 thin layer dry-mix and its preparation and application, the plastering mortar is made of following material: 100-120 parts of cement, 35-55 parts of solid sulfur ash, 55-75 parts of alkaline residue, 750-810 parts of fine aggregate, 3-5 parts of redispersable latex powder, 0.2-0.4 parts of water-retaining agent, 0.1-0.2 parts of defoaming agent, 0.5-1.2 parts of water-reducing agent, based on parts by weight.The present invention makees cement admixture substitution conventional cement admixture using levigate solid sulfur ash and levigate alkaline residue and has prepared the M5 thin layer dry-mix with good comprehensive performance, the water retention property and excellent in mechanical performance of the mortar, 14d adhesion strength, the 28d shrinking percentage of mortar also meet the requirement in GB/T 25181-2010, the problem of overcoming the conventional cements admixture shortage of resources such as slag micropowder, flyash simultaneously, also the resource utilization approach for enriching circulating fluidized bed boiler coal combustion and sulfur fixation ash and alkaline residue, can also improve itself water retention property of cement base plastering mortar.

Description

A kind of M5 thin layer dry-mix and its preparation and application
Technical field
The invention belongs to field of mortar, specifically disclose a kind of M5 thin layer dry-mix and its preparation and application.
Background technique
Plastering mortar, which refers to, to be applied to a kind of premixing mortar on buildings or structures surface, is the important set in building structure At part.Thin layer plastering mortar is a classification in plastering mortar, is mainly used for trowel coating thickness requirement building no more than 5mm (structure) builds object surface.Cement base plastering mortar is always the mainstream in thin layer plastering mortar, bonding component generally by cement and Mineral admixture is constituted, and flyash, slag micropowder etc. are common mineral admixtures.However, cement base plastering mortar generality There is a problem of that water-retaining property is bad, generally requires additional addition water-retaining agent such as cellulose ether etc., be just able to satisfy application requirement.Together When, the mineral admixtures such as flyash, slag micropowder supply in recent years is becoming tight, price is constantly surging, with flyash, slag micropowder etc. The decline effect of glue material cost brought by replacing partial cement is more and more unobvious, and the material of flyash, slag micropowder etc. Item matter is not equal to before.
Circulating fluidized bed boiler coal combustion and sulfur fixation ash refers to that sulfur-bearing coal and sulphur-fixing agent are mixed with certain proportion (Ca/S=2.0-2.5) The discarded ash being collected after calcining solid sulphur in circulating fluidized bed boiler through 850~950 DEG C of certain temperature after conjunction, hereinafter referred to as " solid sulfur ash ".Contain a large amount of alpha-quartz, active silica-alumina mineral, bloodstone, anhydrite and a small amount of free calcium oxide in solid sulfur ash And lime stone, chemical component mainly include Al2O3、SiO2、Fe2O3、SO3, CaO, MgO and f-CaO.Studies have shown that solid sulfur ash Not only there is potential pozzolanic activity, also having characteristics, the grain diameters such as the hydraulicity is micron order.Currently, China consolidates sulphur every year Ash discharge amount in ten-million-ton scale, but there are resource utilization approach it is limited, utilization rate is low the problems such as, mostly use stacking or landfill Mode handle, not only land occupation resource but also be easy to cause environmental pollution.
Byproduct of the alkaline residue as alkaline, the discharge amount of the annual alkaline residue in China also reaches ten-million-ton scale at present, while also depositing It handling difficulty, land occupation, be easy the problem of pollution environment.The main component of alkaline residue is CaCO3、MgCO3、CaCl2、Ca (OH)2、NaCl、Na2SO4、CaSO4Deng wherein CaCO3、MgCO3Content be generally higher than 60%.Studies have shown that composition alkaline residue The minimum unit of grain is mainly nanometer grade calcium carbonate crystal, since nano material large specific surface area, surface electrical behavior are strong, is difficult individually It is stabilized, forms the reunion body unit i.e. alkaline residue of micron order size between these nano crystals by mutually piling up superposition There is the pore structure of flourishing perforation in grain, these alkaline residue particles inside, aperture is distributed mainly on 10-1000nm.
In conclusion it can substitute flyash, slag if the Industrial Solid Waste that can develop other classes makees cement admixture The tradition admixture such as micro mist, and mortar itself water-retaining property can be improved, then it can not only alleviate the shortages of resources such as flyash, slag micropowder Problem can also enrich the resource utilization approach of other class Industrial Solid Wastes, can also reduce water-retaining agent dosage in mortar.
Summary of the invention
To overcome the problems, such as the conventional cements admixture shortage of resources such as slag micropowder, flyash, while horn of plenty recycle stream The resource utilization approach of fluidized bed boiler coal combustion and sulfur fixation ash and alkaline residue, and improve the water-retaining property of cement base plastering mortar itself Can, the present invention provides a kind of M5 thin layer dry-mix and its preparation and application.
Technical scheme is as follows:
A kind of M5 thin layer dry-mix, is made of following material: 100-120 parts of cement, 35-55 parts of solid sulfur ash, alkali 55-75 parts of slag, 750-810 parts of fine aggregate, 3-5 parts of redispersable latex powder, 0.2-0.4 parts of water-retaining agent, defoaming agent 0.1-0.2 Part, 0.5-1.2 parts of water-reducing agent, based on parts by weight.
Preferably, a kind of M5 thin layer dry-mix, is made of following material: 105-115 parts of cement, solid sulfur ash 40-50 parts, 60-70 parts of alkaline residue, 765-795 parts of fine aggregate, 3.5-4.5 parts of redispersable latex powder, water-retaining agent 0.25-0.35 Part, 0.12-0.18 parts of defoaming agent, 0.6-1 parts of water-reducing agent, based on parts by weight.
Further, a kind of M5 thin layer dry-mix, is made of following material: 110 parts of cement, 45 parts of solid sulfur ash, 65 parts of alkaline residue, 780 parts of fine aggregate, 4 parts of redispersable latex powder, 0.3 part of water-retaining agent, 0.15 part of defoaming agent, 0.8 part of water-reducing agent, Based on parts by weight.
The cement is selected from 42.5 cement of P.O, is provided by Dujiang weir Lafarge Cement Co., Ltd, performance detection knot Fruit is as follows: normal consistency water requirement 26.7%, specific surface area 369m2·kg-1, presetting period 170min, final setting time 246min, 3 days flexural strengths 6.0MPa, 28 days flexural strengths 8.3MPa, 3 days compression strength 31.2MPa, 28 days compression strength 50.1MPa, SO3Content 2.03% (≤3.5%), content of MgO 2.41% (≤5%), stability are qualified.
The solid sulfur ash is selected from treated solid sulfur ash, and original state solid sulfur ash is mentioned by Neijiang City in Sichuan Province Baima thermal power plant For the performance test results of solid sulfur ash are as follows after processing: normal consistency water requirement 37.9%, specific surface area 735m2·kg-1, SO3Content 8.7%, content of MgO 2.74%, 28 days compressive strength rates 84.6%.Wherein, the processing mode of solid sulfur ash are as follows: weigh Original state solid sulfur ash puts into grinding 60min in 500 × 500mm of Φ cement testing ball mill.
The alkaline residue is selected from treated alkaline residue, and original state alkaline residue is by Sichuan Province Pengshan County Jiaxiang Chemical Co., Ltd., place The main chemical compositions testing result of alkaline residue is as follows after reason: CaCO3Content 65.1%, Ca (OH)2Content 9.6%, CaCl2Content 5.3%, NaCl 3.8%, CaSO4Content 2.9%.Wherein, the processing mode of alkaline residue are as follows: first by alkaline residue in 105 DEG C of drying boxes Middle drying 24 hours, then puts into grinding 20min in 500 × 500mm of Φ cement testing ball mill for alkaline residue, finally will be after grinding Alkaline residue cross 0.5mm round-hole mesh.
The fine aggregate is selected from drying river sand, and the largest particles partial size is less than 2.36mm, fineness modulus 1.9.
The redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively at Divide >=98%.
The hydroxypropyl methyl cellulose that the water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >= 99%.
The defoaming agent is selected from the bright icepro P803 type chemistry defoaming agent of Germany, and (technical grade, active part is about 65%).
The water-reducing agent is selected from German watt gram 1641 type polycarboxylate water-reducers (technical grade, effective component >=98%).
A kind of preparation method of M5 thin layer dry-mix, the specific steps are as follows: accurately weighed by above-mentioned weight ratio Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, defoaming agent, water-reducing agent put into dry mixing device, pass through To get required product after mechanical stirring is uniform.
A kind of application method of M5 thin layer dry-mix, the specific steps are as follows: water material mass ratio 0.18-0.20 is pressed, The M5 thin layer dry-mix of water and above-mentioned preparation is weighed respectively, and 3-5min, which is mixed, can be used.
Cement, solid sulfur ash, alkaline residue three constitute the gelling system of M5 thin layer dry-mix in the present invention, in aquation Three influences each other in the process, acting synergistically plays gelling property.
The formation temperature of solid sulfur ash is generally 850~950 DEG C, contains a large amount of active silica-alumina mineral.Studies have shown that solid sulphur The degree of polymerization of the oxygen-octahedron of siulica-alumina mineral is lower in ash, and the potential activity of solid sulfur ash is easy to be excited and (refers mainly to alkali to swash Hair).For the particle of original state solid sulfur ash in irregular, grain structure inside and outside is loose porous.And grinding treated solid sulphur Ash, average particle size reduces, overall activity enhances, and the loose and porous structure of particle is by considerable damage, contained anhydrite, oxygen The hydration rate for changing calcium etc. improves.But it is (average due to can still remain a certain number of pore structures after grinding in solid sulfur ash particle Aperture is smaller compared with before grinding, and aperture size is nanoscale or nearly micron order), this makes the solid sulfur ash particle after grinding to hydrone Still have compared with high absorption capacity.
The mineral crystal of alkaline residue mainly has calcium carbonate crystal, calcium hydroxide crystals, calcium chloride crystals, calcium sulphate crystal etc.. Wherein, nanometer grade calcium carbonate crystal, which is staggeredly superimposed, forms compact structure, the lower 2-5um agglomerate particle of activity；Calcium hydroxide Crystal, calcium chloride crystals, calcium sulphate crystal are soluble calcium salts, and when dissolving in water, calcium hydroxide crystals provide OH-Ion Make solution alkaline, calcium sulphate crystal can provide SO4 2-Ion.Studies have shown that the connection between alkaline residue Minerals crystal is more loose It dissipates, the alkaline residue particle being generally observed mainly staggeredly is superimposed the aggregate constituted by mineral crystal or by these aggregates etc. It is further combined the aggregation of composition, therefore, pore structure is very flourishing in alkaline residue particle, and the form that is primarily present in hole has: mine Hole and inter-aggregate pore between object crystal.The size in hole is generally nanoscale between mineral crystal, these nano grade pores have hydrone There is high adsorption capacity, Spatial General 6 R is occupied by hydrone already in hole, and hydrone freedom degree is extremely low in hole, and hydrone is very in hole Indissoluble goes out, and outside water molecule is also difficult to enter back into this pores.Inter-aggregate pore size is generally nearly micron order, the suction to hydrone Attached power and binding force are far below hole between mineral crystal, and the hydrone freedom degree in inter-aggregate pore is higher.Grinding processing is to mineral The influence in hole is unobvious between crystal, but can effectively reduce inter-aggregate pore.
The present invention using 42.5 cement of P.O, levigate solid sulfur ash, levigate alkaline residue is compound by a certain percentage has prepared M5 thin layer The gelling system of dry-mix plays gelling influencing each other, acting synergistically between heterogeneity in the gelling system Can, the mechanism of action are as follows: on the one hand, when the gelling system aquation, Ca (OH) that 42.5 hydrated cementitious of P.O generates2And alkaline residue Middle Ca (OH)2The exciting agent for becoming active silica-alumina mineral in solid sulfur ash, constitutes alkali-activated carbonatite synergistic effect, makes the volcano of solid sulfur ash Grey activity is sufficiently excited, and more C-S-H (hydrated calcium silicate gel) is formed in hydrated product, (drated calcium aluminate is solidifying by C-A-H Glue) etc.；Meanwhile II-CaSO in solid sulfur ash4The CaSO that aquation is formed4·2H2CaSO in O and alkaline residue4Crystal, and constitute Sulphate activation synergistic effect, further excites the pozzolanic activity of solid sulfur ash, and promotes the formation of the crystal such as entringite；Alkali Excitation synergistic effect and sulfate synergistic effect also act on 42.5 cement of P.O simultaneously, promote hydrated cementitious, produce its aquation Object is more abundant, stablizes；In addition, alkaline residue also contains calcium carbonate crystal and other a large amount of soluble calcium salts, calcium carbonate crystal can The filler in mortar powder is served as, soluble calcium salt provides a large amount of calcium ion for gelling system and promotes high-calcium type hydrated product It is formed；Finally keep the structure of aquation gelling system more closely knit, firm.On the other hand, solid sulfur ash particle has with alkaline residue particle There is a porous structure feature, grinding treated solid sulfur ash particle and alkaline residue particle still contain a certain number of nearly micron order holes Gap, hydrone usually can relatively freely pass in and out these micron order holes, and hydrone will receive a fixed limit after entering this pores The adsorption capacity of degree, this strong adsorption force are weaker than gelling system aquation to hydrone in the active force of natural evaporation and macroporous absorption Chemical binding force, therefore these micropores can not only play prevent hydrone be lost effect, but also to gelling system aquation without Adverse effect finally makes gelling system water retention with higher, to improve the water retention property of mortar.The property of the gelling system Energy advantage is mainly shown as: excellent mechanical property and water retention property.
In the present invention, drying river sand plays support and the effect of skeleton as mortar aggregate, to mortar.
In the present invention, redispersable latex powder is mainly used for the flexibility for increasing the adhesion strength of mortar, improving mortar.Cream After rubber powder mixes mortar, with the aquation of bonding component in mortar, in mortar, Free water is gradually decreased, the resin in latex powder Grain moves closer to, and interface gradually obscures, and resin gradually mutually merges, and ultimately forms macromolecule membrane, this process mainly occurs In the stomata and the surface of solids of mortar.
In the present invention, water-retaining agent of the hydroxypropyl methyl cellulose as mortar can improve the cohesiveness and water-retaining property of mortar, The stability that mortar can be improved simultaneously, prevents isolation and the layering of mortar.
In the present invention, defoaming agent is mainly used for eliminating part bubble in mortar, especially some to generate the big of larger harm Sized bubbles improve mortar wet density, mechanical strength, osmotic pressure performance etc. so as to improve mortar homogenieity.
In the present invention, poly carboxylic acid series water reducer is mainly used for reducing mortar water consumption, improves the mechanical property of mortar, simultaneously Improve the fluidity and workability of mortar.
The beneficial effects of the present invention are:
The present invention provides a kind of M5 thin layer dry-mix, is made of following material: 100-120 parts of cement, solid sulfur ash 35-55 parts, 55-75 parts of alkaline residue, 750-810 parts of fine aggregate, 3-5 parts of redispersable latex powder, 0.2-0.4 parts of water-retaining agent, defoaming 0.1-0.2 parts of agent, 0.5-1.2 parts of water-reducing agent, based on parts by weight.The present invention utilizes 42.5 cement of P.O, levigate solid sulfur ash, mill The thin alkaline residue gelling system for having prepared M5 thin layer dry-mix compound by a certain percentage, the heterogeneity in the gelling system Between influence each other, act synergistically play gelling property, using levigate solid sulfur ash and levigate alkaline residue make cement admixture substitution pass System cement admixture (slag micropowder, flyash etc.) has prepared the M5 thin layer dry-mix with good comprehensive performance, The water retention property and excellent in mechanical performance of the mortar, 14d adhesion strength, the 28d shrinking percentage of mortar also meet GB/T 25181- Requirement in 2010, while the problem of the conventional cements admixture shortage of resources such as overcome slag micropowder, flyash, it enriches and follows The resource utilization approach of circulation fluidized bed boiler coal combustion and sulfur fixation ash and alkaline residue, can also improve itself water-retaining property of cement base plastering mortar Energy.
Specific embodiment:
Embodiment 1:
A kind of M5 thin layer dry-mix, is made of following material: 110 parts of cement, 45 parts of solid sulfur ash, 65 parts of alkaline residue, 780 parts of fine aggregate, 4 parts of redispersable latex powder, 0.3 part of water-retaining agent, 0.15 part of defoaming agent, 0.8 part of water-reducing agent, with parts by weight Meter.
Wherein, cement is selected from 42.5 cement of P.O, is provided by Dujiang weir Lafarge Cement Co., Ltd, performance detection knot Fruit is as follows: normal consistency water requirement 26.7%, specific surface area 369m2·kg-1, presetting period 170min, final setting time 246min, 3 days flexural strengths 6.0MPa, 28 days flexural strengths 8.3MPa, 3 days compression strength 31.2MPa, 28 days compression strength 50.1MPa, SO3Content 2.03% (≤3.5%), content of MgO 2.41% (≤5%), stability are qualified.
Wherein, solid sulfur ash is selected from treated solid sulfur ash, and original state solid sulfur ash is mentioned by Neijiang City in Sichuan Province Baima thermal power plant For the performance test results of solid sulfur ash are as follows after processing: normal consistency water requirement 37.9%, specific surface area 735m2·kg-1, SO3Content 8.7%, content of MgO 2.74%, 28 days compressive strength rates 84.6%.Wherein, the processing mode of solid sulfur ash are as follows: weigh Original state solid sulfur ash puts into grinding 60min in 500 × 500mm of Φ cement testing ball mill.
Wherein, alkaline residue is selected from treated alkaline residue, and original state alkaline residue is by Sichuan Province Pengshan County Jiaxiang Chemical Co., Ltd., place The main chemical compositions testing result of alkaline residue is as follows after reason: CaCO3Content 65.1%, Ca (OH)2Content 9.6%, CaCl2Content 5.3%, NaCl 3.8%, CaSO4Content 2.9%.Wherein, the processing mode of alkaline residue are as follows: first by alkaline residue in 105 DEG C of drying boxes Middle drying 24 hours, then puts into grinding 20min in 500 × 500mm of Φ cement testing ball mill for alkaline residue, finally will be after grinding Alkaline residue cross 0.5mm round-hole mesh.
Wherein, fine aggregate is selected from drying river sand, and the largest particles partial size is less than 2.36mm, fineness modulus 1.9.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively Ingredient >=98%.
Wherein, the hydroxypropyl methyl cellulose that water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >= 99%.
Wherein, (technical grade, active part is about 65%) selected from the bright icepro P803 type chemistry defoaming agent of Germany for defoaming agent.
Wherein, water-reducing agent is selected from German watt gram 1641 type polycarboxylate water-reducers (technical grade, effective component >=98%).
A kind of preparation method of M5 thin layer dry-mix, the specific steps are as follows: accurately weighed by above-mentioned weight ratio Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, defoaming agent, water-reducing agent put into dry mixing device, pass through To get required product after mechanical stirring is uniform.
A kind of application method of M5 thin layer dry-mix, the specific steps are as follows: press water material mass ratio 0.185, respectively The M5 thin layer dry-mix of water and above-mentioned preparation is weighed, 3min, which is mixed, can be used.
Embodiment 2:
A kind of M5 thin layer dry-mix, is made of following material: 115 parts of cement, 40 parts of solid sulfur ash, 65 parts of alkaline residue, 780 parts of fine aggregate, 4 parts of redispersable latex powder, 0.3 part of water-retaining agent, 0.15 part of defoaming agent, 0.8 part of water-reducing agent, with parts by weight Meter.
Wherein, cement is selected from 42.5 cement of P.O, is provided by Dujiang weir Lafarge Cement Co., Ltd, performance detection knot Fruit is as follows: normal consistency water requirement 26.7%, specific surface area 369m2·kg-1, presetting period 170min, final setting time 246min, 3 days flexural strengths 6.0MPa, 28 days flexural strengths 8.3MPa, 3 days compression strength 31.2MPa, 28 days compression strength 50.1MPa, SO3Content 2.03% (≤3.5%), content of MgO 2.41% (≤5%), stability are qualified.
Wherein, solid sulfur ash is selected from treated solid sulfur ash, and original state solid sulfur ash is mentioned by Neijiang City in Sichuan Province Baima thermal power plant For the performance test results of solid sulfur ash are as follows after processing: normal consistency water requirement 37.9%, specific surface area 735m2·kg-1, SO3Content 8.7%, content of MgO 2.74%, 28 days compressive strength rates 84.6%.Wherein, the processing mode of solid sulfur ash are as follows: weigh Original state solid sulfur ash puts into grinding 60min in 500 × 500mm of Φ cement testing ball mill.
Wherein, alkaline residue is selected from treated alkaline residue, and original state alkaline residue is by Sichuan Province Pengshan County Jiaxiang Chemical Co., Ltd., place The main chemical compositions testing result of alkaline residue is as follows after reason: CaCO3Content 65.1%, Ca (OH)2Content 9.6%, CaCl2Content 5.3%, NaCl 3.8%, CaSO4Content 2.9%.Wherein, the processing mode of alkaline residue are as follows: first by alkaline residue in 105 DEG C of drying boxes Middle drying 24 hours, then puts into grinding 20min in 500 × 500mm of Φ cement testing ball mill for alkaline residue, finally will be after grinding Alkaline residue cross 0.5mm round-hole mesh.
Wherein, fine aggregate is selected from drying river sand, and the largest particles partial size is less than 2.36mm, fineness modulus 1.9.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively Ingredient >=98%.
Wherein, the hydroxypropyl methyl cellulose that water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >= 99%.
Wherein, (technical grade, active part is about 65%) selected from the bright icepro P803 type chemistry defoaming agent of Germany for defoaming agent.
Wherein, water-reducing agent is selected from German watt gram 1641 type polycarboxylate water-reducers (technical grade, effective component >=98%).
A kind of preparation method of M5 thin layer dry-mix, the specific steps are as follows: accurately weighed by above-mentioned weight ratio Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, defoaming agent, water-reducing agent put into dry mixing device, pass through To get required product after mechanical stirring is uniform.
A kind of application method of M5 thin layer dry-mix, the specific steps are as follows: press water material mass ratio 0.185, respectively The M5 thin layer dry-mix of water and above-mentioned preparation is weighed, 3min, which is mixed, can be used.
Embodiment 3:
A kind of M5 thin layer dry-mix, is made of following material: 105 parts of cement, 45 parts of solid sulfur ash, 70 parts of alkaline residue, 780 parts of fine aggregate, 4 parts of redispersable latex powder, 0.3 part of water-retaining agent, 0.15 part of defoaming agent, 0.8 part of water-reducing agent, with parts by weight Meter.
Wherein, cement is selected from 42.5 cement of P.O, is provided by Dujiang weir Lafarge Cement Co., Ltd, performance detection knot Fruit is as follows: normal consistency water requirement 26.7%, specific surface area 369m2·kg-1, presetting period 170min, final setting time 246min, 3 days flexural strengths 6.0MPa, 28 days flexural strengths 8.3MPa, 3 days compression strength 31.2MPa, 28 days compression strength 50.1MPa, SO3Content 2.03% (≤3.5%), content of MgO 2.41% (≤5%), stability are qualified.
Wherein, solid sulfur ash is selected from treated solid sulfur ash, and original state solid sulfur ash is mentioned by Neijiang City in Sichuan Province Baima thermal power plant For the performance test results of solid sulfur ash are as follows after processing: normal consistency water requirement 37.9%, specific surface area 735m2·kg-1, SO3Content 8.7%, content of MgO 2.74%, 28 days compressive strength rates 84.6%.Wherein, the processing mode of solid sulfur ash are as follows: weigh Original state solid sulfur ash puts into grinding 60min in 500 × 500mm of Φ cement testing ball mill.
Wherein, alkaline residue is selected from treated alkaline residue, and original state alkaline residue is by Sichuan Province Pengshan County Jiaxiang Chemical Co., Ltd., place The main chemical compositions testing result of alkaline residue is as follows after reason: CaCO3Content 65.1%, Ca (OH)2Content 9.6%, CaCl2Content 5.3%, NaCl 3.8%, CaSO4Content 2.9%.Wherein, the processing mode of alkaline residue are as follows: first by alkaline residue in 105 DEG C of drying boxes Middle drying 24 hours, then puts into grinding 20min in 500 × 500mm of Φ cement testing ball mill for alkaline residue, finally will be after grinding Alkaline residue cross 0.5mm round-hole mesh.
Wherein, fine aggregate is selected from drying river sand, and the largest particles partial size is less than 2.36mm, fineness modulus 1.9.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively Ingredient >=98%.
Wherein, the hydroxypropyl methyl cellulose that water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >= 99%.
Wherein, (technical grade, active part is about 65%) selected from the bright icepro P803 type chemistry defoaming agent of Germany for defoaming agent.
Wherein, water-reducing agent is selected from German watt gram 1641 type polycarboxylate water-reducers (technical grade, effective component >=98%).
A kind of preparation method of M5 thin layer dry-mix, the specific steps are as follows: accurately weighed by above-mentioned weight ratio Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, defoaming agent, water-reducing agent put into dry mixing device, pass through To get required product after mechanical stirring is uniform.
A kind of application method of M5 thin layer dry-mix, the specific steps are as follows: press water material mass ratio 0.185, respectively The M5 thin layer dry-mix of water and above-mentioned preparation is weighed, 3min, which is mixed, can be used.
Embodiment 4:
A kind of M5 thin layer dry-mix, is made of following material: 115 parts of cement, 45 parts of solid sulfur ash, 70 parts of alkaline residue, 770 parts of fine aggregate, 4 parts of redispersable latex powder, 0.3 part of water-retaining agent, 0.15 part of defoaming agent, 0.8 part of water-reducing agent, with parts by weight Meter.
Wherein, cement is selected from 42.5 cement of P.O, is provided by Dujiang weir Lafarge Cement Co., Ltd, performance detection knot Fruit is as follows: normal consistency water requirement 26.7%, specific surface area 369m2·kg-1, presetting period 170min, final setting time 246min, 3 days flexural strengths 6.0MPa, 28 days flexural strengths 8.3MPa, 3 days compression strength 31.2MPa, 28 days compression strength 50.1MPa, SO3Content 2.03% (≤3.5%), content of MgO 2.41% (≤5%), stability are qualified.
Wherein, solid sulfur ash is selected from treated solid sulfur ash, and original state solid sulfur ash is mentioned by Neijiang City in Sichuan Province Baima thermal power plant For the performance test results of solid sulfur ash are as follows after processing: normal consistency water requirement 37.9%, specific surface area 735m2·kg-1, SO3Content 8.7%, content of MgO 2.74%, 28 days compressive strength rates 84.6%.Wherein, the processing mode of solid sulfur ash are as follows: weigh Original state solid sulfur ash puts into grinding 60min in 500 × 500mm of Φ cement testing ball mill.
Wherein, alkaline residue is selected from treated alkaline residue, and original state alkaline residue is by Sichuan Province Pengshan County Jiaxiang Chemical Co., Ltd., place The main chemical compositions testing result of alkaline residue is as follows after reason: CaCO3Content 65.1%, Ca (OH)2Content 9.6%, CaCl2Content 5.3%, NaCl 3.8%, CaSO4Content 2.9%.Wherein, the processing mode of alkaline residue are as follows: first by alkaline residue in 105 DEG C of drying boxes Middle drying 24 hours, then puts into grinding 20min in 500 × 500mm of Φ cement testing ball mill for alkaline residue, finally will be after grinding Alkaline residue cross 0.5mm round-hole mesh.
Wherein, fine aggregate is selected from drying river sand, and the largest particles partial size is less than 2.36mm, fineness modulus 1.9.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively Ingredient >=98%.
Wherein, the hydroxypropyl methyl cellulose that water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >= 99%.
Wherein, (technical grade, active part is about 65%) selected from the bright icepro P803 type chemistry defoaming agent of Germany for defoaming agent.
Wherein, water-reducing agent is selected from German watt gram 1641 type polycarboxylate water-reducers (technical grade, effective component >=98%).
A kind of preparation method of M5 thin layer dry-mix, the specific steps are as follows: accurately weighed by above-mentioned weight ratio Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, defoaming agent, water-reducing agent put into dry mixing device, pass through To get required product after mechanical stirring is uniform.
A kind of application method of M5 thin layer dry-mix, the specific steps are as follows: press water material mass ratio 0.185, respectively The M5 thin layer dry-mix of water and above-mentioned preparation is weighed, 3min, which is mixed, can be used.
Embodiment 5:
A kind of M5 thin layer dry-mix, is made of following material: 110 parts of cement, 45 parts of solid sulfur ash, 65 parts of alkaline residue, 780 parts of fine aggregate, 4 parts of redispersable latex powder, 0.3 part of water-retaining agent, 0.15 part of defoaming agent, 0.8 part of water-reducing agent, with parts by weight Meter.
Wherein, cement is selected from 42.5 cement of P.O, is provided by Dujiang weir Lafarge Cement Co., Ltd, performance detection knot Fruit is as follows: normal consistency water requirement 26.7%, specific surface area 369m2·kg-1, presetting period 170min, final setting time 246min, 3 days flexural strengths 6.0MPa, 28 days flexural strengths 8.3MPa, 3 days compression strength 31.2MPa, 28 days compression strength 50.1MPa, SO3Content 2.03% (≤3.5%), content of MgO 2.41% (≤5%), stability are qualified.
Wherein, solid sulfur ash is selected from treated solid sulfur ash, and original state solid sulfur ash is mentioned by Neijiang City in Sichuan Province Baima thermal power plant For the performance test results of solid sulfur ash are as follows after processing: normal consistency water requirement 37.9%, specific surface area 735m2·kg-1, SO3Content 8.7%, content of MgO 2.74%, 28 days compressive strength rates 84.6%.Wherein, the processing mode of solid sulfur ash are as follows: weigh Original state solid sulfur ash puts into grinding 60min in 500 × 500mm of Φ cement testing ball mill.
Wherein, alkaline residue is selected from treated alkaline residue, and original state alkaline residue is by Sichuan Province Pengshan County Jiaxiang Chemical Co., Ltd., place The main chemical compositions testing result of alkaline residue is as follows after reason: CaCO3Content 65.1%, Ca (OH)2Content 9.6%, CaCl2Content 5.3%NaCl is 3.8%, CaSO4Content 2.9%.Wherein, the processing mode of alkaline residue are as follows: first by alkaline residue in 105 DEG C of drying boxes Then alkaline residue is put into grinding 20min in 500 × 500mm of Φ cement testing ball mill by drying 24 hours, finally will be after grinding Alkaline residue crosses 0.5mm round-hole mesh.
Wherein, fine aggregate is selected from drying river sand, and the largest particles partial size is less than 2.36mm, fineness modulus 1.9.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively Ingredient >=98%.
Wherein, the hydroxypropyl methyl cellulose that water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >= 99%.
Wherein, (technical grade, active part is about 65%) selected from the bright icepro P803 type chemistry defoaming agent of Germany for defoaming agent.
Wherein, water-reducing agent is selected from German watt gram 1641 type polycarboxylate water-reducers (technical grade, effective component >=98%).
A kind of preparation method of M5 thin layer dry-mix, the specific steps are as follows: accurately weighed by above-mentioned weight ratio Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, defoaming agent, water-reducing agent put into dry mixing device, pass through To get required product after mechanical stirring is uniform.
A kind of application method of M5 thin layer dry-mix, the specific steps are as follows: press water material mass ratio 0.18, claim respectively The M5 thin layer dry-mix of water intaking and above-mentioned preparation, 3min, which is mixed, can be used.
M5 thin layer dry-mix prepared by Examples 1 to 5 is tested for the property, as a result as follows:
By data in upper table it is found that the M5 thin layer dry-mix of Examples 1 to 5 preparation all has good water-retaining property Can, water retention is all larger than 99%, 28d compression strength between 7.7-8.5MPa, and the 14d adhesion strength of mortar, 28d shrinking percentage Meet the requirement in GB/T 25181-2010, this shows that the present invention is blended using levigate solid sulfur ash and levigate alkali slag as cement Material substitution conventional cement admixture (slag micropowder, flyash etc.) has been prepared the M5 thin layer dry powder with Good All-around Property and has been smeared Lime and brick.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art For member, the invention may be variously modified and varied.Modification done within the spirit and principles of the present invention should all contain Within protection scope of the present invention.

Claims (10)

1. a kind of M5 thin layer dry-mix, it is characterised in that: be made of following material: 100-120 parts of cement, solid sulfur ash 35-55 parts, 55-75 parts of alkaline residue, 750-810 parts of fine aggregate, 3-5 parts of redispersable latex powder, 0.2-0.4 parts of water-retaining agent, defoaming 0.1-0.2 parts of agent, 0.5-1.2 parts of water-reducing agent, based on parts by weight.
2. a kind of M5 thin layer dry-mix according to claim 1, it is characterised in that: be made of following material: water 105-115 parts of mud, 40-50 parts of solid sulfur ash, 60-70 parts of alkaline residue, 765-795 parts of fine aggregate, redispersable latex powder 3.5-4.5 Part, 0.25-0.35 parts of water-retaining agent, 0.12-0.18 parts of defoaming agent, 0.6-1 parts of water-reducing agent, based on parts by weight.
3. a kind of M5 thin layer dry-mix according to claim 2, it is characterised in that: be made of following material: water 110 parts of mud, 45 parts of solid sulfur ash, 65 parts of alkaline residue, 780 parts of fine aggregate, 4 parts of redispersable latex powder, 0.3 part of water-retaining agent, defoaming agent 0.15 part, 0.8 part of water-reducing agent, based on parts by weight.
4. a kind of M5 thin layer dry-mix according to claim 1 or 2 or 3, it is characterised in that: the cement is selected from 42.5 cement of P.O.
5. a kind of M5 thin layer dry-mix according to claim 1 or 2 or 3, it is characterised in that: the solid sulfur ash choosing From treated solid sulfur ash, the processing mode of solid sulfur ash are as follows: weigh original state solid sulfur ash investment 500 × 500mm of Φ cement testing Grinding 60min in ball mill.
6. a kind of M5 thin layer dry-mix according to claim 1 or 2 or 3, it is characterised in that: the alkaline residue is selected from Treated alkaline residue, the processing mode of alkaline residue are as follows: first dry alkaline residue 24 hours in 105 DEG C of drying boxes, then by alkaline residue Grinding 20min in 500 × 500mm of Φ cement testing ball mill is put into, the alkaline residue after grinding is finally crossed into 0.5mm round-hole mesh i.e. It can.
7. a kind of M5 thin layer dry-mix according to claim 1 or 2 or 3, it is characterised in that: the fine aggregate choosing From drying river sand, the largest particles partial size is less than 2.36mm, fineness modulus 1.9；The redispersable latex powder is selected from Germany Wa Ke company 8031H type redispersable latex powder, technical grade, effective component >=98%.
8. a kind of M5 thin layer dry-mix according to claim 1 or 2 or 3, it is characterised in that: the water-retaining agent choosing The hydroxypropyl methyl cellulose for being 100000mPas from viscosity, technical grade, effective component >=99%；The defoaming agent is selected from moral The bright icepro P803 type chemistry defoaming agent of state；The water-reducing agent is selected from German watt gram 1641 type polycarboxylate water-reducers.
9. a kind of preparation method of M5 thin layer dry-mix according to claim 1 or 2 or 3, it is characterised in that: tool Steps are as follows for body: accurately weighing cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water conservation by above-mentioned weight ratio Agent, defoaming agent, water-reducing agent, put into dry mixing device, by mechanical stirring it is uniform after to get required product.
10. a kind of application method of M5 thin layer dry-mix according to claim 1 or 2 or 3, it is characterised in that: Specific step is as follows: water material mass ratio 0.18-0.20 is pressed, weighs the M5 thin layer dry-mix of water and above-mentioned preparation respectively, 3-5min, which is mixed, can be used.
CN201811330441.2A 2018-11-09 2018-11-09 A kind of M5 thin layer dry-mix and its preparation and application Pending CN109400057A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103274656A (en) * 2013-05-17 2013-09-04 西南科技大学 Solid sulfur ash plastering mortar

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103274656A (en) * 2013-05-17 2013-09-04 西南科技大学 Solid sulfur ash plastering mortar

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
杨医博等: "碱渣用作砂浆保水剂的试验研究", 《材料导报》 *

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