CN109320166A - A kind of common dry-mixed masonry mortar of M7.5 and its preparation and application - Google Patents
A kind of common dry-mixed masonry mortar of M7.5 and its preparation and application Download PDFInfo
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- CN109320166A CN109320166A CN201811337822.3A CN201811337822A CN109320166A CN 109320166 A CN109320166 A CN 109320166A CN 201811337822 A CN201811337822 A CN 201811337822A CN 109320166 A CN109320166 A CN 109320166A
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- parts
- alkaline residue
- cement
- masonry mortar
- solid sulfur
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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 common dry-mixed masonry mortar of M7.5 and its preparation and application, the mortar is made of following material: 100-120 parts of cement, 30-50 parts of solid sulfur ash, 40-60 parts of alkaline residue, 770-830 parts of fine aggregate, 0.15-0.2 parts of redispersable latex powder, 0.1-0.15 parts of water-retaining agent, 0.5-0.65 parts of retarder, 0.04-0.06 parts of air entraining 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 common dry-mixed masonry mortar of M7.5 with good comprehensive performance, the water retention property and excellent in mechanical performance of the mortar, the setting time of mortar, bulk density, initial consistency and 2h consistency loss late also meet the requirement in GB/T 25181-2010, be conducive to overcome slag micropowder, the problem of conventional cements admixture shortage of resources such as flyash, the resource utilization approach of circulating fluidized bed boiler coal combustion and sulfur fixation ash and alkaline residue can be enriched simultaneously, itself water retention property of cement base masonry mortar can also be improved.
Description
Technical field
The invention belongs to field of mortar, specifically disclose a kind of common dry-mixed masonry mortar of M7.5 and its side of making and using
Method.
Background technique
Masonry mortar refers to a kind of mortar that the building blocks such as brick, stone are connected into masonry, is the important composition in building structure
Part.Cement base masonry mortar is always the mainstream in masonry mortar, and bonding component is generally by cement and mineral admixture structure
At flyash, slag micropowder etc. are common mineral admixtures.However, cement base masonry mortar generality there are water-retaining propertys not
Good problem generally requires additional addition water-retaining agent (such as cellulose ether) and is just able to satisfy application requirement.Meanwhile fine coal in recent years
The supply of the mineral admixtures such as ash, slag micropowder is becoming tight, price is constantly surging, with replacing partial cements such as flyash, slag micropowders
The decline effect of brought glue material cost is more and more unobvious, and the material quality of flyash, slag micropowder etc. is much worse than
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 masonry mortar itself
Can, the present invention provides a kind of common dry-mixed masonry mortar of M7.5 and its preparation and application.
Technical scheme is as follows:
A kind of common dry-mixed masonry mortar of M7.5, is made of following material: 100-120 parts of cement, 30-50 parts of solid sulfur ash,
40-60 parts of alkaline residue, 770-830 parts of fine aggregate, 0.15-0.2 parts of redispersable latex powder, 0.1-0.15 parts of water-retaining agent, retarder
0.5-0.65 parts, 0.04-0.06 parts of air entraining agent, based on parts by weight.
Preferably, a kind of common dry-mixed masonry mortar of M7.5, is made of following material: 105-115 parts of cement, solid sulfur ash
35-45 parts, 45-55 parts of alkaline residue, 785-815 parts of fine aggregate, 0.17-0.19 parts of redispersable latex powder, water-retaining agent 0.11-0.14
Part, 0.55-0.6 parts of retarder, 0.045-0.055 parts of air entraining agent, based on parts by weight.
Further, the common dry-mixed masonry mortar of a kind of M7.5 is made of following material: 110 parts of cement, solid sulfur ash 40
Part, 50 parts of alkaline residue, 800 parts of fine aggregate, 0.18 part of redispersable latex powder, 0.13 part of water-retaining agent, 0.58 part of retarder, air entraining agent
0.05 part, 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 the compound baked sand of continuous grading, and the compound baked sand is by drying river sand and drying Machine-made Sand
The two is compounded to obtain by 1:1 mass ratio, the largest particles partial size be less than 4.75mm, fineness modulus 2.5,0.3mm or less
Grain content is 23%, and 0.15mm or less granule content is 6%.
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 retarder is selected from compound retarder, which is answered by white sugar and sodium gluconate by weight 1:2
With obtaining.
The air entraining agent is selected from lauryl sodium sulfate, is provided by Henan Zhong Jie chemical products Co., Ltd, effective component
Content >=95%.
A kind of preparation method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: accurately claim by above-mentioned weight ratio
Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, retarder, air entraining agent are taken, dry mixing device is put into, is led to
Cross mechanical stirring it is uniform after to get required product.
A kind of application method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: press water material mass ratio 0.19-
0.21, the common dry-mixed masonry mortar of M7.5 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 the common dry-mixed masonry mortar of M7.5 in the present invention, in water
Three influences each other during change, 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.
Compound by a certain percentage to have prepared M7.5 general using 42.5 cement of P.O, levigate solid sulfur ash, levigate alkaline residue by the present invention
The gelling system of logical dry-mixed masonry mortar plays gelling influencing each other, acting synergistically between heterogeneity in the gelling system
Performance, 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 alkali
Ca (OH) in slag2The exciting agent for becoming active silica-alumina mineral in solid sulfur ash, constitutes alkali-activated carbonatite synergistic effect, makes the fire of solid sulfur ash
Mountain ash activity is sufficiently excited, and more C-S-H (hydrated calcium silicate gel), C-A-H (drated calcium aluminate are formed in hydrated product
Gel) etc.；Meanwhile II-CaSO in solid sulfur ash4The CaSO that aquation is formed4·2H2CaSO in O and alkaline residue4Crystal, and structure
At sulphate activation synergistic effect, the pozzolanic activity of solid sulfur ash is further excited, and promotes the formation of the crystal such as entringite；
Alkali-activated carbonatite synergistic effect and sulfate synergistic effect also act on 42.5 cement of P.O simultaneously, promote hydrated cementitious, make its aquation
Product 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
It may act as the filler in mortar powder, soluble calcium salt provides a large amount of calcium ion for gelling system and promotes high-calcium type hydrated product
Formation；Finally keep the structure of aquation gelling system more closely knit, firm.On the other hand, solid sulfur ash particle and alkaline residue particle are equal
With porous structure feature, grinding treated solid sulfur ash particle and alkaline residue particle still contain a certain number of nearly micron orders
Hole, hydrone usually can relatively freely pass in and out these micron order holes, and hydrone will receive certain after entering this pores
The adsorption capacity of limit, this strong adsorption force are weaker than gelling system aquation to moisture in the active force of natural evaporation and macroporous absorption
The chemical binding force of son, therefore these micropores can not only play the effect for preventing hydrone to be lost, but also to gelling system aquation
It has no adverse effects, finally makes gelling system water retention with higher, to improve the water retention property of mortar.The gelling system
Performance advantage is mainly shown as: excellent mechanical property and water retention property.
In the present invention, compound baked 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, compound retarder is mainly used for reducing the hydration rate of gelling system in mortar, extends gelling system
Setting time.
In the present invention, lauryl sodium sulfate is mainly used as air entraining agent, introduces during the mix of mortar into mortar
Micro-bubble improves the workability, water-retaining property, homogenieity of mortar, adjusts mortar bulk density.
The beneficial effects of the present invention are:
The present invention provides a kind of common dry-mixed masonry mortar of M7.5, is made of following material: 100-120 parts of cement, solid sulphur
30-50 parts grey, 40-60 parts of alkaline residue, 770-830 parts of fine aggregate, 0.15-0.2 parts of redispersable latex powder, water-retaining agent 0.1-0.15
Part, 0.5-0.65 parts of retarder, 0.04-0.06 parts of air entraining agent, based on parts by weight.The system of the common dry-mixed masonry mortar of the M7.5
Preparation Method is as follows: by weight ratio accurately weigh above-mentioned raw materials investment dry mixing device, by mechanical stirring it is uniform after to get required
Product.
Compound by a certain percentage to have prepared M7.5 general using 42.5 cement of P.O, levigate solid sulfur ash, levigate alkaline residue by the present invention
The gelling system of logical dry-mixed masonry mortar plays gelling influencing each other, acting synergistically between heterogeneity in the gelling system
Performance, the present invention make cement admixture substitution conventional cement admixture (slag micropowder, powder using levigate solid sulfur ash and levigate alkaline residue
Coal ash etc.) prepare the common dry-mixed masonry mortar of M7.5 with good comprehensive performance, the water retention property and mechanics of the mortar
It has excellent performance, setting time, bulk density, initial consistency and the 2h consistency loss late of mortar also meet in GB/T 25181-2010
Requirement, be conducive to overcome the problems, such as the conventional cements admixture shortage of resources such as slag micropowder, flyash, while circulation can be enriched
The resource utilization approach of fluidized-bed combustion boiler coal combustion and sulfur fixation ash and alkaline residue, can also improve itself water-retaining property of cement base masonry mortar
Energy.
Specific embodiment:
Embodiment 1:
A kind of common dry-mixed masonry mortar of M7.5, is made of following material: 110 parts of cement, 40 parts of solid sulfur ash, alkaline residue 50
Part, 800 parts of fine aggregate, 0.18 part of redispersable latex powder, 0.13 part of water-retaining agent, 0.58 part of retarder, 0.05 part of air entraining 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.
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.
Wherein, fine aggregate is selected from the compound baked sand of continuous grading, and the compound baked sand is by drying river sand and drying mechanism
Both sand is compounded to obtain by 1:1 mass ratio, and the largest particles partial size is less than 4.75mm, fineness modulus 2.5,0.3mm or less
Granule content is 23%, and 0.15mm or less granule content is 6%.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively
Ingredient >=98%.
The hydroxypropyl methyl cellulose that the water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >=
99%.
Wherein, retarder is selected from compound retarder, which is answered by white sugar and sodium gluconate by weight 1:2
With obtaining.
Wherein, air entraining agent is selected from lauryl sodium sulfate, is provided by Henan Zhong Jie chemical products Co., Ltd, effective component
Content >=95%.
A kind of preparation method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: accurately claim by above-mentioned weight ratio
Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, retarder, air entraining agent are taken, dry mixing device is put into, is led to
Cross mechanical stirring it is uniform after to get required product.
A kind of application method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: press water material mass ratio 0.20, respectively
The common dry-mixed masonry mortar of M7.5 of water and above-mentioned preparation is weighed, 3min, which is mixed, can be used.
Embodiment 2:
A kind of common dry-mixed masonry mortar of M7.5, is made of following material: 115 parts of cement, 35 parts of solid sulfur ash, alkaline residue 50
Part, 800 parts of fine aggregate, 0.18 part of redispersable latex powder, 0.13 part of water-retaining agent, 0.58 part of retarder, 0.05 part of air entraining 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.
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.
Wherein, fine aggregate is selected from the compound baked sand of continuous grading, and the compound baked sand is by drying river sand and drying mechanism
Both sand is compounded to obtain by 1:1 mass ratio, and the largest particles partial size is less than 4.75mm, fineness modulus 2.5,0.3mm or less
Granule content is 23%, and 0.15mm or less granule content is 6%.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively
Ingredient >=98%.
The hydroxypropyl methyl cellulose that the water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >=
99%.
Wherein, retarder is selected from compound retarder, which is answered by white sugar and sodium gluconate by weight 1:2
With obtaining.
Wherein, air entraining agent is selected from lauryl sodium sulfate, is provided by Henan Zhong Jie chemical products Co., Ltd, effective component
Content >=95%.
A kind of preparation method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: accurately claim by above-mentioned weight ratio
Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, retarder, air entraining agent are taken, dry mixing device is put into, is led to
Cross mechanical stirring it is uniform after to get required product.
A kind of application method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: press water material mass ratio 0.20, respectively
The common dry-mixed masonry mortar of M7.5 of water and above-mentioned preparation is weighed, 3min, which is mixed, can be used.
Embodiment 3:
A kind of common dry-mixed masonry mortar of M7.5, is made of following material: 105 parts of cement, 40 parts of solid sulfur ash, alkaline residue 55
Part, 800 parts of fine aggregate, 0.18 part of redispersable latex powder, 0.13 part of water-retaining agent, 0.58 part of retarder, 0.05 part of air entraining 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.
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.
Wherein, fine aggregate is selected from the compound baked sand of continuous grading, and the compound baked sand is by drying river sand and drying mechanism
Both sand is compounded to obtain by 1:1 mass ratio, and the largest particles partial size is less than 4.75mm, fineness modulus 2.5,0.3mm or less
Granule content is 23%, and 0.15mm or less granule content is 6%.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively
Ingredient >=98%.
The hydroxypropyl methyl cellulose that the water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >=
99%.
Wherein, retarder is selected from compound retarder, which is answered by white sugar and sodium gluconate by weight 1:2
With obtaining.
Wherein, air entraining agent is selected from lauryl sodium sulfate, is provided by Henan Zhong Jie chemical products Co., Ltd, effective component
Content >=95%.
A kind of preparation method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: accurately claim by above-mentioned weight ratio
Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, retarder, air entraining agent are taken, dry mixing device is put into, is led to
Cross mechanical stirring it is uniform after to get required product.
A kind of application method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: press water material mass ratio 0.20, respectively
The common dry-mixed masonry mortar of M7.5 of water and above-mentioned preparation is weighed, 3min, which is mixed, can be used.
Embodiment 4:
A kind of common dry-mixed masonry mortar of M7.5, is made of following material: 115 parts of cement, 40 parts of solid sulfur ash, alkaline residue 55
Part, 790 parts of fine aggregate, 0.18 part of redispersable latex powder, 0.13 part of water-retaining agent, 0.58 part of retarder, 0.05 part of air entraining 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.
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.
Wherein, fine aggregate is selected from the compound baked sand of continuous grading, and the compound baked sand is by drying river sand and drying mechanism
Both sand compounds obtain by a certain percentage, and the largest particles partial size is less than 4.75mm, fineness modulus 2.5,0.3mm or less particle
Content is 23%, and 0.15mm or less granule content is 6%.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively
Ingredient >=98%.
The hydroxypropyl methyl cellulose that the water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >=
99%.
Wherein, retarder is selected from compound retarder, which is answered by white sugar and sodium gluconate by weight 1:2
With obtaining.
Wherein, air entraining agent is selected from lauryl sodium sulfate, is provided by Henan Zhong Jie chemical products Co., Ltd, effective component
Content >=95%.
A kind of preparation method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: accurately claim by above-mentioned weight ratio
Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, retarder, air entraining agent are taken, dry mixing device is put into, is led to
Cross mechanical stirring it is uniform after to get required product.
A kind of application method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: press water material mass ratio 0.20, respectively
The common dry-mixed masonry mortar of M7.5 of water and above-mentioned preparation is weighed, 3min, which is mixed, can be used.
Embodiment 5:
A kind of common dry-mixed masonry mortar of M7.5, is made of following material: 110 parts of cement, 40 parts of solid sulfur ash, alkaline residue 50
Part, 800 parts of fine aggregate, 0.18 part of redispersable latex powder, 0.13 part of water-retaining agent, 0.58 part of retarder, 0.05 part of air entraining 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.
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.
Wherein, fine aggregate is selected from the compound baked sand of continuous grading, and the compound baked sand is by drying river sand and drying mechanism
Both sand is compounded to obtain by 1:1 mass ratio, and the largest particles partial size is less than 4.75mm, fineness modulus 2.5,0.3mm or less
Granule content is 23%, and 0.15mm or less granule content is 6%.
Wherein, redispersable latex powder be selected from Germany's Wa Ke company 8031H type redispersable latex powder, technical grade, effectively
Ingredient >=98%.
The hydroxypropyl methyl cellulose that the water-retaining agent is 100000mPas selected from viscosity, technical grade, effective component >=
99%.
Wherein, retarder is selected from compound retarder, which is answered by white sugar and sodium gluconate by weight 1:2
With obtaining.
Wherein, air entraining agent is selected from lauryl sodium sulfate, is provided by Henan Zhong Jie chemical products Co., Ltd, effective component
Content >=95%.
A kind of preparation method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: accurately claim by above-mentioned weight ratio
Cement, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, retarder, air entraining agent are taken, dry mixing device is put into, is led to
Cross mechanical stirring it is uniform after to get required product.
A kind of application method of the common dry-mixed masonry mortar of M7.5, the specific steps are as follows: water material mass ratio 0.205 is pressed, point
The also known as common dry-mixed masonry mortar of M7.5 of water intaking and above-mentioned preparation, 3min, which is mixed, can be used.
The common dry-mixed masonry mortar of M7.5 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 common dry-mixed masonry mortar of M7.5 of Examples 1 to 5 preparation all has good water conservation
Performance, water retention are all larger than 91%, 28d compression strength between 7.8-8.4MPa, and the setting time of mortar, bulk density, initial thick
Degree and 2h consistency loss late also meet the requirement in GB/T 25181-2010, this show the present invention using levigate solid sulfur ash and
Levigate alkaline residue is made cement admixture substitution conventional cement admixture (slag micropowder, flyash etc.) and has been prepared with excellent synthesis
The common dry-mixed masonry mortar of the M7.5 of performance.
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 common dry-mixed masonry mortar of M7.5, it is characterised in that: be made of following material: 100-120 parts of cement, solid sulfur ash
30-50 parts, 40-60 parts of alkaline residue, 770-830 parts of fine aggregate, 0.15-0.2 parts of redispersable latex powder, water-retaining agent 0.1-0.15
Part, 0.5-0.65 parts of retarder, 0.04-0.06 parts of air entraining agent, based on parts by weight.
2. the common dry-mixed masonry mortar of a kind of M7.5 according to claim 1, it is characterised in that: be made of following material:
105-115 parts of cement, 35-45 parts of solid sulfur ash, 45-55 parts of alkaline residue, 785-815 parts of fine aggregate, redispersable latex powder 0.17-
0.19 part, 0.11-0.14 parts of water-retaining agent, 0.55-0.6 parts of retarder, 0.045-0.055 parts of air entraining agent, based on parts by weight.
3. the common dry-mixed masonry mortar of a kind of M7.5 according to claim 2, it is characterised in that: be made of following material:
110 parts of cement, 40 parts of solid sulfur ash, 50 parts of alkaline residue, 800 parts of fine aggregate, 0.18 part of redispersable latex powder, 0.13 part of water-retaining agent,
0.58 part of retarder, 0.05 part of air entraining agent, based on parts by weight.
4. the common dry-mixed masonry mortar of a kind of M7.5 according to claim 1 or 2 or 3, it is characterised in that: the cement choosing
From 42.5 cement of P.O.
5. the common dry-mixed masonry mortar of a kind of M7.5 according to claim 1 or 2 or 3, it is characterised in that: the solid sulfur ash
Selected from treated solid sulfur ash, the processing mode of solid sulfur ash are as follows: weigh investment 500 × 500mm of the Φ cement examination of original state solid sulfur ash
Test grinding 60min in ball mill.
6. the common dry-mixed masonry mortar of a kind of M7.5 according to claim 1 or 2 or 3, it is characterised in that: the alkaline residue choosing
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 alkali
Slag puts into grinding 20min in 500 × 500mm of Φ cement testing ball mill, and the alkaline residue after grinding is finally crossed 0.5mm round-hole mesh i.e.
It can.
7. the common dry-mixed masonry mortar of a kind of M7.5 according to claim 1 or 2 or 3, it is characterised in that: the fine aggregate
Compound baked sand selected from continuous grading, the compound baked sand press 1:1 mass ratio by both drying river sand and drying Machine-made Sand
Compounding obtains, and the largest particles partial size is less than 4.75mm, fineness modulus 2.5, and 0.3mm or less granule content is 23%,
0.15mm or less granule content is 6%；The redispersable latex powder is selected from Germany's Wa Ke company 8031H type Redispersable latex
Powder, technical grade, effective component >=98%.
8. the common dry-mixed masonry mortar of a kind of M7.5 according to claim 1 or 2 or 3, it is characterised in that: the water-retaining agent
The hydroxypropyl methyl cellulose for being 100000mPas selected from viscosity, technical grade, effective component >=99%；The retarder is selected from
Compound retarder, the compound retarder are compounded to obtain with sodium gluconate by white sugar by weight 1:2；The air entraining agent is selected from ten
Sodium dialkyl sulfate, active constituent content >=95%.
9. a kind of preparation method of the common dry-mixed masonry mortar of M7.5 according to claim 1, it is characterised in that: specific step
It is rapid as follows: to accurately weigh cement by above-mentioned weight ratio, solid sulfur ash, alkaline residue, fine aggregate, redispersable latex powder, water-retaining agent, delay
Solidifying agent, air entraining agent put into dry mixing device, by mechanical stirring it is uniform after to get required product.
10. a kind of application method of the common dry-mixed masonry mortar of M7.5 according to claim 1, it is characterised in that: specific
Steps are as follows: pressing water material mass ratio 0.19-0.21, weighs the common dry-mixed masonry mortar of M7.5 of water and above-mentioned preparation respectively, mixes
Closing stirring 3-5min can be used.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274655A (en) * | 2013-05-17 | 2013-09-04 | 西南科技大学 | Solid sulfur ash masonry mortar |
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2018
- 2018-11-09 CN CN201811337822.3A patent/CN109320166A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274655A (en) * | 2013-05-17 | 2013-09-04 | 西南科技大学 | Solid sulfur ash masonry mortar |
Non-Patent Citations (1)
| 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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Application publication date: 20190212 |