CN105693132A - Preparation method of special grinding aid for silver grey rock powder - Google Patents
Preparation method of special grinding aid for silver grey rock powder Download PDFInfo
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- CN105693132A CN105693132A CN201610058115.5A CN201610058115A CN105693132A CN 105693132 A CN105693132 A CN 105693132A CN 201610058115 A CN201610058115 A CN 201610058115A CN 105693132 A CN105693132 A CN 105693132A
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- grinding aid
- silver grey
- rock powder
- grey rock
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
Abstract
The invention discloses a special grinding aid for silver grey rock powder. The special grinding aid is prepared from the following components in parts by weight: 10-25 parts of triethanolamine, 5-15 parts of polymeric polylol, 20-40 parts of polycarboxylic acid, 1-10 parts of cane molasses, 1-10 parts of alkyl propyl sulfonate, 1-10 parts of calcium lignosulphonate, 0.1-5 parts of sulfosuccinate, 0.1-5 parts of lauryl sodium sulfate, 0.1-5 parts of glauber salt and 10-50 parts of water. The preparation method comprises the following steps: A. injecting the water into a reactor according to parts by weight, heating, and adding the alkyl propyl sulfonate, calcium lignosulphonate and sulfosuccinate to obtain a solution I; B. adding the lauryl sodium sulfate and glauber salt into the solution I to obtain a solution II; and C. adding the triethanolamine, polymeric polylol and cane molasses into the solution II, stirring, adding the polycarboxylic acid, stirring uniformly, screening, and taking the filtrate, thereby obtaining the special grinding aid for silver grey rock powder. The grinding aid can lower the free energy on the powder surface, and can excite the latent activity of the cement and rock powder. The preparation technique is simple and understandable, and has popularization value.
Description
Technical field
The present invention relates to a kind of silver grey rock micropowder and manufacture the silver grey rock grinding aid in field, the preparation method of specifically a kind of silver grey Rock Powder grinding aid special。
Background technology
Stone powder is a kind of grinding stone dust to certain fineness。Its main component is CaCO3, when mixing in cement as composite material after it is by grinding to certain fineness, it is possible to optimize the grain composition of cement, be conducive to improving concrete pore structure。The measured stone powder of matter depends primarily on CaCO in stone powder3Purity, as the CaCO of stone powder3Content is higher and during by grinding to desirable fineness, and stone powder can form the slurry of softness with cement, thus effectively improving concrete workability。In Japan, agstone has been widely used in the middle of concrete product。Li Zhengshi, in conjunction with the case history of successful Application, demonstrates the necessity of the agstone feasibility as concrete admixture and existing environment。Yuan Hang et al. have studied the impact on concrete performance of the agstone fineness。Liu Juanhong et al. have studied the agstone impact on concrete work performance and intensity。At present, the research of agstone application in concrete is more, but utilize the research that stone powder grinding aid improves stone powder mobility and activity index to be substantially free of。
The activity of stone powder is on the low side, water requirement is greatly restrict its two hang-ups applied in concrete, Guangxi has abundant limestone mine resource, being located in the mine resources that the Wuzhou of Southeast of Guangxi is mainly distributed is silver grey rock, and this rock is much like with limestone physicochemical properties。The stone powder local due to Guangxi is mainly supplied to mixing plant to use, and the water requirement of stone powder is required stricter by mixing plant, for this situation, my company has set up a research and development group, the water requirement problems of too of silver grey rock has been carried out systematic research, owing to the grindability of silver grey rock is better, therefore, having only to the grinding very short time just can reach only small fineness, and there is significantly high specific surface area, increase along with specific surface area, fine powder surface becomes big with the contact area of water with regard to corresponding, cause that water requirement increases, the silver grey rock that present invention is generally directed to have Guangxi Local characteristic carries out mortar fluidity, cement mortar strength and concrete optimum etc. are tested, aim to solve the problem that the problem that the water requirement of this stone powder is excessive。
Summary of the invention
The goal of the invention of the present invention is in that: for above-mentioned Problems existing, the present invention carries out composite with triethanolamine, polycarboxylic acids etc., make a kind of silver grey Rock Powder grinding aid special, the surfactant contained in this stone powder grinding aid changes the surface property of stone powder, the surface of moisture moistening stone powder more efficiently can be made, thus decreasing the consumption of moisture；And along with the surface of stone powder can reduce, the mobile performance of stone powder can be improved again, the problem solving silver grey Rock Powder poor fluidity；Additionally, grinding aid prepared by the present invention is while optimizing talc particles grating, catalytic activation component excites the lateral reactivity of cement and stone powder, increases substantially the activity of silver grey Rock Powder。
The present invention is achieved by the following technical solutions:
A kind of silver grey Rock Powder grinding aid special, is prepared from by triethanolamine 10-25 part, polymerized polyalcohol 5-15 part, polycarboxylic acids 20-40 part, cane molasses 1-10 part, alkyl propane sulfonic acid salt 1-10 part, calcium lignosulfonate 1-10 part, sulfosuccinate 0.1-5 part, sodium lauryl sulphate 0.1-5 part, Matrii Sulfas Exsiccatus 0.1-5 part and water 10-50 part according to parts by weight meter。
In the present invention, preferably, described silver grey Rock Powder grinding aid special, is prepared from by triethanolamine 15-20 part, polymerized polyalcohol 8-12 part, polycarboxylic acids 25-35 part, cane molasses 2-8 part, alkyl propane sulfonic acid salt 3-8 part, calcium lignosulfonate 3-8 part, sulfosuccinate 0.5-3 part, sodium lauryl sulphate 0.5-3 part, Matrii Sulfas Exsiccatus 0.5-3 part and water 20-35 part according to parts by weight meter。
In the present invention, more preferably, described silver grey Rock Powder grinding aid special, is prepared from by triethanolamine 18 parts, polymerized polyalcohol 10 parts, polycarboxylic acids 30 parts, cane molasses 4 parts, alkyl propane sulfonic acid salt 5 parts, calcium lignosulfonate 5 parts, sulfosuccinate 1 part, sodium lauryl sulphate 2 parts, Matrii Sulfas Exsiccatus 3 parts and 30 parts of water according to parts by weight meter。
In the present invention, as further illustrating, described polycarboxylic acids is prepared by following method: acrylic acid and Ammonium persulfate. are joined in methylpropenyl sodium sulfonate solution, after stirring reaction a period of time, adding methoxy poly (ethylene glycol) and maleic acid pavilion, after reacting by heating a period of time, then to add adjusting PH with base value be 6-8, eventually passing processed control moisture content is 50-70%, can obtain polycarboxylic acids；Each raw material is calculated as according to parts by weight: acrylic acid 1-5 part, Ammonium persulfate. 1-5 part, methylpropenyl sodium sulfonate 10-20 part, methoxy poly (ethylene glycol) 1-10 part, maleic anhydride 1-10 part。
In the present invention, as further illustrating, the temperature of described stirring reaction is 70 ± 5 DEG C, and the time is 5-8h；The temperature of described reacting by heating is 110 ± 5 DEG C, and the time is 5-10h。
In the present invention, as further illustrating, described alkali is at least one in sodium hydroxide, magnesium hydroxide, aluminium hydroxide and calcium hydroxide。
In the present invention, as further illustrating, described polymerized polyalcohol is the mixture being made up of acrylic acid 1-10 part, diethylene glycol 5-10 part, glycerol 1-5 part, polyglycerol 1-5 part, sodium soap 1-5 part and water 10-25 part according to parts by weight meter。
The preparation method of silver grey Rock Powder grinding aid special described above, specifically comprises the following steps that
A, according to parts by weight meter, inject water in reactor, after heating, put into alkyl propane sulfonic acid salt, calcium lignosulfonate and sulfosuccinate, obtain I solution；
B, then sodium lauryl sulphate and Matrii Sulfas Exsiccatus are put in above-mentioned I solution, obtain II solution；
C, triethanolamine, polymerized polyalcohol and cane molasses are joined in II solution, after stirring, add polycarboxylic acids, be stirred for sieving after uniformly, take the filtrate after filtration and be silver grey Rock Powder grinding aid special。
In the present invention, as further illustrating, in described step A, the temperature of heating is 20-40 DEG C；It was 200-500 mesh sieve that described step C sieves。
The raw material related in this application all can obtain in buying on the market。
Wherein, cane molasses sugar content is 10%-20%。
This compared with prior art, the device have the advantages that into:
1, the present invention carries out composite with triethanolamine, polycarboxylic acids etc., make a kind of silver grey Rock Powder grinding aid special, the surfactant contained in this stone powder grinding aid changes the surface property of stone powder, during polycarboxylic acids ensures pulverizing, water-reducing rate does not reduce, during carrying out silver grey rock grinding aid, the moisture of parcel in the flocculence structure formed in the process carrying out silver grey rock pulverizing can be made to discharge, the surface of moisture moistening stone powder more efficiently can be made, thus decreasing the consumption of moisture；And along with the surface of stone powder can reduce, the mobile performance of stone powder can be improved again, the problem solving silver grey Rock Powder poor fluidity；In addition, grinding aid prepared by the present invention is while optimizing talc particles grating, Matrii Sulfas Exsiccatus can improve the pH value of aquation liquid phase after dissolving, glassy state silica network in silver grey rock is made to dissociate rapidly, acceleration of hydration reacts, and the reaction such as calcium ion that water-containing column can obtain in water with silver grey karst, aluminium ion generates C-S-H gelling or aquation calcium aluminosilicate, promotes the further hydrolysis of silver grey rock and sodium silicate, with addition of sodium lauryl sulphate Matrii Sulfas Exsiccatus improve aquation liquid phase pH value after, contained OH-1The key of the silica polymeric chain promoted in silver grey rock is destroyed by ion, accelerate the dispersion of silver grey rock, dissolving, and form hydrated calcium silicate and drated calcium aluminate, use Matrii Sulfas Exsiccatus to excite the lateral reactivity of cement and stone powder as catalytic activation component with addition of sodium lauryl sulphate, increase substantially the activity of silver grey Rock Powder。
2, the raw material polycarboxylic acids in the present invention is autonomous synthesis, contains the functional group of difference in functionality after designing molecular structure polymerization by the condition of different proportionings and adjustment reaction, can flexible adaptation functional requirement；The molecule controlling polymerization is contained within various active functional group, such as groups such as ester group, hydroxyl, carbonyl, carboxyl, methyl and side-chain structures, can strengthen its cohesive strength and adhesive force is strong, has higher intensity, wearability, and grinding-aid effect is more lasting。
3, a kind of silver grey rock of the present invention special stone powder grinding aid is to be composited by common industrial chemicals and industrial waste, low toxicity, stable performance；Research finds, after adding the stone powder grinding aid of my company's independent research, each raw material plays cooperative effect, grinding output can improve 10%-20%, effectively reduces unit stone powder power consumption, accomplishes high yield and saving energy；Powder granule distribution and pattern can be improved after mixing stone powder, collaborative chemistry excitation, improve the activity of stone powder, can well adapting to property for the big silver grey rock of water requirement, it is possible to the water requirement of stone powder is greatly lowered so that the water requirement of silver grey Rock Powder declines to a great extent, when grinding aid volume reaches 0.18%, its water demand ratio has been reduced to 98% by original 104%, and the activity index value of its each age is all greatly improved, and reaches stone powder application conditions in concrete；And the grinding aid of the present invention has the effect carrying product, strengthening pulverizing efficiency, the stone powder grinding aid that the present invention develops, mainly for silver grey rock, empirical tests, is also applied for various types of limestone；The grinding aid of the present invention is watery thing, each component mix homogeneously, can each constituent content of flexible meet stone powder producer to carry product, enhancing, by water requirement, the demand improving mobility etc.。
4, the raw material used in the present invention employs the molasses that cane molasses replaces commonly using, identical effect can not only be played, and the process for cane molasses provides a new approach, low production cost, environmental protection, it is worthy to be popularized。
Detailed description of the invention
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way。
This specification (include any accessory claim, summary) disclosed in any feature, unless specifically stated otherwise, all can by other equivalences or there is the alternative features of similar purpose replaced。That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics。
Embodiment 1:
A kind of silver grey Rock Powder grinding aid special, is prepared from by triethanolamine 10 parts, polymerized polyalcohol 5 parts, polycarboxylic acids 20 parts, cane molasses 1 part, alkyl propane sulfonic acid salt 1 part, calcium lignosulfonate 1 part, sulfosuccinate 0.1 part, sodium lauryl sulphate 0.1 part, Matrii Sulfas Exsiccatus 0.1 part and 10 parts of water according to parts by weight meter。
Prepared into silver grey Rock Powder grinding aid special by above-mentioned raw material, specifically comprise the following steps that
A, polycarboxylic acids preparation: by 1 part of acrylic acid and cross Ammonium persulfate. 1 part join in 10 parts of solution of methylpropenyl sodium sulfonate, it it is 70 DEG C in temperature, after stirring reaction 5h, adding methoxy poly (ethylene glycol) 1 part and 1 part, maleic acid pavilion, heating-up temperature is 110 DEG C, after reaction 5h, repeated hydrogenation sodium oxide adjusts pH value to be 6, eventually passing processed control moisture content is 50%, can obtain polycarboxylic acids, stand-by；
B, polymerized polyalcohol preparation: be can obtain polymerized polyalcohol according to parts by weight meter after 1 part of acrylic acid, diethylene glycol 5 parts, glycerol 1 part, polyglycerol 1 part, sodium soap 1 part and 10 parts of mix homogeneously of water, stand-by；
C, according to parts by weight meter, inject water in reactor, heat to after 20 DEG C, putting into alkyl propane sulfonic acid salt, calcium lignosulfonate and sulfosuccinate, obtain I solution；
D, then sodium lauryl sulphate and Matrii Sulfas Exsiccatus are put in above-mentioned I solution, obtain II solution；
E, stand-by polymerized polyalcohol triethanolamine, step B prepared again and cane molasses join in II solution, the step A stand-by polycarboxylic acids prepared is added after stirring, it is stirred for crossing 200 mesh sieves after uniformly, takes the filtrate after filtration and be silver grey Rock Powder grinding aid special。
Embodiment 2:
A kind of silver grey Rock Powder grinding aid special, is prepared from by triethanolamine 25 parts, polymerized polyalcohol 15 parts, polycarboxylic acids 40 parts, cane molasses 10 parts, alkyl propane sulfonic acid salt 10 parts, calcium lignosulfonate 10 parts, sulfosuccinate 5 parts, sodium lauryl sulphate 5 parts, Matrii Sulfas Exsiccatus 5 parts and 50 parts of water according to parts by weight meter。
Prepared into silver grey Rock Powder grinding aid special by above-mentioned raw material, specifically comprise the following steps that
A, polycarboxylic acids preparation: by 5 parts of acrylic acid and cross Ammonium persulfate. 5 parts join in 20 parts of solution of methylpropenyl sodium sulfonate, it it is 75 DEG C in temperature, after stirring reaction 8h, adding methoxy poly (ethylene glycol) 10 parts and 10 parts, maleic acid pavilion, heating-up temperature is 115 DEG C, after reaction 10h, repeated hydrogenation magnesium oxide adjusts pH value to be 8, eventually passing processed control moisture content is 70%, can obtain polycarboxylic acids, stand-by；
B, polymerized polyalcohol preparation: be can obtain polymerized polyalcohol according to parts by weight meter after 10 parts of acrylic acid, diethylene glycol 10 parts, glycerol 5 parts, polyglycerol 5 parts, sodium soap 5 parts and 25 parts of mix homogeneously of water, stand-by；
C, according to parts by weight meter, inject water in reactor, heat to after 40 DEG C, putting into alkyl propane sulfonic acid salt, calcium lignosulfonate and sulfosuccinate, obtain I solution；
D, then sodium lauryl sulphate and Matrii Sulfas Exsiccatus are put in above-mentioned I solution, obtain II solution；
E, stand-by polymerized polyalcohol triethanolamine, step B prepared again and cane molasses join in II solution, the step A stand-by polycarboxylic acids prepared is added after stirring, it is stirred for crossing 500 mesh sieves after uniformly, takes the filtrate after filtration and be silver grey Rock Powder grinding aid special。
Embodiment 3:
A kind of silver grey Rock Powder grinding aid special, is prepared from by triethanolamine 15 parts, polymerized polyalcohol 8 parts, polycarboxylic acids 25 parts, cane molasses 2 parts, alkyl propane sulfonic acid salt 3 parts, calcium lignosulfonate 3 parts, sulfosuccinate 0.5 part, sodium lauryl sulphate 0.5 part, Matrii Sulfas Exsiccatus 0.5 part and 20 parts of water according to parts by weight meter。
Prepared into silver grey Rock Powder grinding aid special by above-mentioned raw material, specifically comprise the following steps that
A, polycarboxylic acids preparation: by 2 parts of acrylic acid and cross Ammonium persulfate. 2 parts join in 12 parts of solution of methylpropenyl sodium sulfonate, it it is 65 DEG C in temperature, after stirring reaction 6h, adding methoxy poly (ethylene glycol) 4 parts and 3 parts, maleic acid pavilion, heating-up temperature is 1055 DEG C, after reaction 6h, repeated hydrogenation aluminium oxide adjusts pH value to be 7, eventually passing processed control moisture content is 60%, can obtain polycarboxylic acids, stand-by；
B, polymerized polyalcohol preparation: be can obtain polymerized polyalcohol according to parts by weight meter after 3 parts of acrylic acid, diethylene glycol 6 parts, glycerol 3 parts, polyglycerol 3 parts, sodium soap 3 parts and 15 parts of mix homogeneously of water, stand-by；
C, according to parts by weight meter, inject water in reactor, heat to after 25 DEG C, putting into alkyl propane sulfonic acid salt, calcium lignosulfonate and sulfosuccinate, obtain I solution；
D, then sodium lauryl sulphate and Matrii Sulfas Exsiccatus are put in above-mentioned I solution, obtain II solution；
E, stand-by polymerized polyalcohol triethanolamine, step B prepared again and cane molasses join in II solution, the step A stand-by polycarboxylic acids prepared is added after stirring, it is stirred for crossing 250 mesh sieves after uniformly, takes the filtrate after filtration and be silver grey Rock Powder grinding aid special。
Embodiment 4:
A kind of silver grey Rock Powder grinding aid special, is prepared from by triethanolamine 20 parts, polymerized polyalcohol 12 parts, polycarboxylic acids 35 parts, cane molasses 8 parts, alkyl propane sulfonic acid salt 8 parts, calcium lignosulfonate 8 parts, sulfosuccinate 3 parts, sodium lauryl sulphate 3 parts, Matrii Sulfas Exsiccatus 3 parts and 35 parts of water according to parts by weight meter。
Prepared into silver grey Rock Powder grinding aid special by above-mentioned raw material, specifically comprise the following steps that
A, polycarboxylic acids preparation: by 3 parts of acrylic acid and cross Ammonium persulfate. 3 parts join in 15 parts of solution of methylpropenyl sodium sulfonate, it it is 72 DEG C in temperature, after stirring reaction 7h, adding methoxy poly (ethylene glycol) 6 parts and 5 parts, maleic acid pavilion, heating-up temperature is 112 DEG C, after reaction 8h, repeated hydrogenation calcium oxide adjusts pH value to be 6, eventually passing processed control moisture content is 65%, can obtain polycarboxylic acids, stand-by；
B, polymerized polyalcohol preparation: be can obtain polymerized polyalcohol according to parts by weight meter after 6 parts of acrylic acid, diethylene glycol 8 parts, glycerol 4 parts, polyglycerol 2 parts, sodium soap 3 parts and 18 parts of mix homogeneously of water, stand-by；
C, according to parts by weight meter, inject water in reactor, heat to after 30 DEG C, putting into alkyl propane sulfonic acid salt, calcium lignosulfonate and sulfosuccinate, obtain I solution；
D, then sodium lauryl sulphate and Matrii Sulfas Exsiccatus are put in above-mentioned I solution, obtain II solution；
E, stand-by polymerized polyalcohol triethanolamine, step B prepared again and cane molasses join in II solution, the step A stand-by polycarboxylic acids prepared is added after stirring, it is stirred for crossing 300 mesh sieves after uniformly, takes the filtrate after filtration and be silver grey Rock Powder grinding aid special。
Embodiment 5:
A kind of silver grey Rock Powder grinding aid special, is prepared from by triethanolamine 18 parts, polymerized polyalcohol 10 parts, polycarboxylic acids 30 parts, cane molasses 4 parts, alkyl propane sulfonic acid salt 5 parts, calcium lignosulfonate 5 parts, sulfosuccinate 1 part, sodium lauryl sulphate 2 parts, Matrii Sulfas Exsiccatus 3 parts and 30 parts of water according to parts by weight meter。
Prepared into silver grey Rock Powder grinding aid special by above-mentioned raw material, specifically comprise the following steps that
A, polycarboxylic acids preparation: by 4 parts of acrylic acid and cross Ammonium persulfate. 4 parts join in 19 parts of solution of methylpropenyl sodium sulfonate, it it is 74 DEG C in temperature, after stirring reaction 6.5h, adding methoxy poly (ethylene glycol) 7 parts and 9 parts, maleic acid pavilion, heating-up temperature is 114 DEG C, after reaction 9h, repeated hydrogenation sodium oxide and magnesium hydroxide adjust pH value to be 7, eventually passing processed control moisture content is 55%, can obtain polycarboxylic acids, stand-by；
B, polymerized polyalcohol preparation: be can obtain polymerized polyalcohol according to parts by weight meter after 9 parts of acrylic acid, diethylene glycol 7 parts, glycerol 2 parts, polyglycerol 4 parts, sodium soap 4 parts and 22 parts of mix homogeneously of water, stand-by；
C, according to parts by weight meter, inject water in reactor, heat to after 38 DEG C, putting into alkyl propane sulfonic acid salt, calcium lignosulfonate and sulfosuccinate, obtain I solution；
D, then sodium lauryl sulphate and Matrii Sulfas Exsiccatus are put in above-mentioned I solution, obtain II solution；
E, stand-by polymerized polyalcohol triethanolamine, step B prepared again and cane molasses join in II solution, the step A stand-by polycarboxylic acids prepared is added after stirring, it is stirred for crossing 400 mesh sieves after uniformly, takes the filtrate after filtration and be silver grey Rock Powder grinding aid special。
The performance evaluation of grinding aid prepared by the present invention
1 raw material and test method
1.1 raw materials
The single use triethanolamine (A) of matched group as grinding aid, the single use glycerol (B) of matched group as grinding aid, grinding aid prepared by embodiment 1-5, silver grey rock, Guilin Xingan Carnis Rapanae thomasianae PO42.5, normal sand。The chemical composition of cement is in Table 1。
The chemical composition (%) of table 1 cement
| CaO | SO2 | Al2O3 | MgO | TO2 | SO3 | K2O | Fe2O3 | LOSS |
| 61.8 | 21.4 | 5.8 | 1.5 | 0.4 | 1.24 | 0.7 | 2.5 | 1.60 |
1.2 test methods
1.2.1 the fineness of stone powder and specific area measuring
Singly mixing grinding aid prepared by triethanolamine (A), glycerol (B) and embodiment 1-5 with laboratory standard ball mill (Φ 500mm × 500mm), to be 0.02%, 0.04%, 0.06%, 0.08% (mass percent) at volume respectively carry out powder characteristics and performance test with the 3kg silver grey rock dust dried mill and after the material after grinding is crossed 0.9mm square hole screen。
1.2.2 measure consumptive use of water normal consistence and setting time
Add 50% Guilin Xingan Carnis Rapanae thomasianae PO42.5 cement production systD plural gel powder body material with 50% silver grey rock, carry out measuring slurry consumptive use of water normal consistence and setting time only with reference to GB/T136-2001。
1.2.3 cement mortar strength measures
Add 50% portland cement with 50% silver grey rock and make plural gel powder body material, with reference to GB/T17671-1999, measure 7d, 28d cement mortar strength。
2 experimental analysiss
The impact on silver grey rock fineness of 2.1 grinding aids
The grinding aid of table 2 matched group and the stone powder fineness of volume grinding and specific area measuring result
The grinding aid of each embodiment of table 3 and the stone powder fineness measurement result (40 μm of sieves) of volume grinding
Table 4 is the stone powder fineness measurement result (80 μm of sieves) of each embodiment grinding aid and volume grinding
The specific area measuring result of each embodiment grinding aid of table 5 and volume grinding
By table 2-5 it can be seen that each singly mix grinding aid grinding-aid effect relative to the blank sample not mixing grinding aid grinding, after mixing grinding aid, grinding effect is more preferably；Triethanolamine and the ethylene glycol singly mixed it is superior to mixed with its fineness of stone powder of grinding aid grinding and specific surface area value added, and the grinding aid volume prepared of the present invention is when being 0.14%, silver grey rock fineness and specific surface area ascendant trend all tend to relaxing, and the rising space is only small；It can thus be seen that the grinding-aid effect of grinding aid prepared of the present invention is slightly above the grinding-aid effect of one pack system grinding aid and the optimum mix amount scope 0.14%-0.18% (mass percent)。
2.2 grinding aids on silver grey rock-cement system consumptive use of water normal consistence, setting time, cement mortar strength impact
Clean slurry consumptive use of water normal consistence and setting time measurement result in Table 7-10
Table 6 matched group is to clean slurry consumptive use of water normal consistence and the measurement result of setting time
The each embodiment of table 7 is to the clean measurement result starching consumptive use of water normal consistence
The each embodiment of table 8 is to the clean measurement result starching the presetting period
The each embodiment of table 9 is to the clean measurement result starching final setting time
Be can be seen that by table 6-9, although adding the silver grey rock specific surface area of the sample of the silver grey rock of grinding aid relative to not adding the big of grinding aid, but singly mix grinding aid A, the stone powder of grinding aid grinding prepared by B, the present invention, its consumptive use of water normal consistence but all presents downward trend, this illustrates that grinding aid has certain diminishing function, plays the effect improving fluidity；Presetting period and the final setting time tool of stone powder-cement system are had a certain impact by grinding aid (embodiment 1-5) prepared by triethanolamine and ethylene glycol, the present invention, and respective effect tendency is also different；Grinding aid prepared by the present invention, compared with triethanolamine and ethylene glycol, adds presetting period and the final setting time of stone powder-cement system, and meets country's requirement to cement setting time。2.31 grinding aids are to silver grey rock-cement system cement mortar strength test result table (7d, 28d)
Table 10 matched group cement mortar strength assay to stone powder-cement system
The table 11 each embodiment rupture strength assay to stone powder-cement system
The table 12 each embodiment comprcssive strength assay to stone powder-cement system
Being can be seen that by table 10-12, relative to blank sample, stone powder-anti-folding of cement system 7d, 28d and the comprcssive strength of singly mixing grinding aid grinding respectively have had a degree of raising；A grinding aid is 1.6MPa, 4.5MPa than the maximum value added of the anti-folding of blank 7d, 28d, is 1.2MPa, 2.9MPa than the maximum value added of blank sample 7d, 28d resistance to compression；B grinding aid is 1.7MPa, 4.7MPa than the maximum value added of the blank anti-folding of sample 7d, 28d, is 2.7MPa, 2.0MPa than the maximum value added of blank sample 7d, 28d resistance to compression；From the data of embodiment 1-5 it can be seen that the grinding aid prepared of the present invention is 2.9MPa, 3.7MPa than the maximum value added of the blank anti-folding of sample 7d, 28d, it is 2.0MPa, 4.1MPa than the maximum value added of blank sample 7d, 28d resistance to compression；From test data analyzer, relative triethanolamine and ethylene glycol, the grinding aid volume prepared as the present invention reaches 0.18% relative blank sample and improves 2-5MPa, and now the comprcssive strength of 28d is also beyond the cement mortar strength of standard cement sample, and stone powder also has higher early strength。
The invention is not limited in aforesaid detailed description of the invention。The present invention expands to any new feature disclosed in this manual or any new combination, and the step of the arbitrary new method disclosed or process or any new combination。
Claims (9)
1. a silver grey Rock Powder grinding aid special, it is characterized in that, be prepared from by triethanolamine 10-25 part, polymerized polyalcohol 5-15 part, polycarboxylic acids 20-40 part, cane molasses 1-10 part, alkyl propane sulfonic acid salt 1-10 part, calcium lignosulfonate 1-10 part, sulfosuccinate 0.1-5 part, sodium lauryl sulphate 0.1-5 part, Matrii Sulfas Exsiccatus 0.1-5 part and water 10-50 part according to parts by weight meter。
2. silver grey Rock Powder grinding aid special according to claim 1, it is characterized in that, be prepared from by triethanolamine 15-20 part, polymerized polyalcohol 8-12 part, polycarboxylic acids 25-35 part, cane molasses 2-8 part, alkyl propane sulfonic acid salt 3-8 part, calcium lignosulfonate 3-8 part, sulfosuccinate 0.5-3 part, sodium lauryl sulphate 0.5-3 part, Matrii Sulfas Exsiccatus 0.5-3 part and water 20-35 part according to parts by weight meter。
3. silver grey Rock Powder grinding aid special according to claim 1, it is characterized in that, be prepared from by triethanolamine 18 parts, polymerized polyalcohol 10 parts, polycarboxylic acids 30 parts, cane molasses 4 parts, alkyl propane sulfonic acid salt 5 parts, calcium lignosulfonate 5 parts, sulfosuccinate 1 part, sodium lauryl sulphate 2 parts, Matrii Sulfas Exsiccatus 3 parts and 30 parts of water according to parts by weight meter。
4. silver grey Rock Powder grinding aid special according to claim 1, it is characterized in that, described polycarboxylic acids is prepared by following method: acrylic acid and Ammonium persulfate. are joined in methylpropenyl sodium sulfonate solution, after stirring reaction a period of time, adding methoxy poly (ethylene glycol) and maleic acid pavilion, after reacting by heating a period of time, then to add adjusting PH with base value be 6-8, eventually passing processed control moisture content is 50-70%, can obtain polycarboxylic acids；Each raw material is calculated as according to parts by weight: acrylic acid 1-5 part, Ammonium persulfate. 1-5 part, methylpropenyl sodium sulfonate 10-20 part, methoxy poly (ethylene glycol) 1-10 part, maleic anhydride 1-10 part。
5. silver grey Rock Powder grinding aid special according to claim 4, it is characterised in that the temperature of described stirring reaction is 70 ± 5 DEG C, and the time is 5-8h；The temperature of described reacting by heating is 110 ± 5 DEG C, and the time is 5-10h。
6. silver grey Rock Powder grinding aid special according to claim 4, it is characterised in that described alkali is at least one in sodium hydroxide, magnesium hydroxide, aluminium hydroxide and calcium hydroxide。
7. silver grey Rock Powder grinding aid special according to claim 1, it is characterized in that, described polymerized polyalcohol is the mixture being made up of acrylic acid 1-10 part, diethylene glycol 5-10 part, glycerol 1-5 part, polyglycerol 1-5 part, sodium soap 1-5 part and water 10-25 part according to parts by weight meter。
8. the preparation method of silver grey Rock Powder grinding aid special according to any one in claim 1-3, it is characterised in that specifically comprise the following steps that
A, according to parts by weight meter, inject water in reactor, after heating, put into alkyl propane sulfonic acid salt, calcium lignosulfonate and sulfosuccinate, obtain I solution；
B, then sodium lauryl sulphate and Matrii Sulfas Exsiccatus are put in above-mentioned I solution, obtain II solution；
C, triethanolamine, polymerized polyalcohol and cane molasses are joined in II solution, after stirring, add polycarboxylic acids, be stirred for sieving after uniformly, take the filtrate after filtration and be silver grey Rock Powder grinding aid special。
9. the preparation method of silver grey Rock Powder grinding aid special according to claim 8, it is characterised in that in described step A, the temperature of heating is 20-40 DEG C；It was 200-500 mesh sieve that described step C sieves。
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| CN107021662A (en) * | 2017-05-14 | 2017-08-08 | 常州五荣化工有限公司 | A kind of preparation method of cement grinding aid |
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| CN107021662A (en) * | 2017-05-14 | 2017-08-08 | 常州五荣化工有限公司 | A kind of preparation method of cement grinding aid |
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