CN109111152A - A kind of hydrated cementitious hardening additive and preparation method thereof - Google Patents
A kind of hydrated cementitious hardening additive and preparation method thereof Download PDFInfo
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- CN109111152A CN109111152A CN201811014998.5A CN201811014998A CN109111152A CN 109111152 A CN109111152 A CN 109111152A CN 201811014998 A CN201811014998 A CN 201811014998A CN 109111152 A CN109111152 A CN 109111152A
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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
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of hydrated cementitious hardening additives and preparation method thereof, belong to the field of building materials.For the present invention using oxidant as hydrogen peroxide, reducing agent is vitamin C, and maleic anhydride, vinyl polyether etc. are polymerized monomer, and thioacetic acid is chain-transferring agent, is polymerize, and anti-mud additive is formed, and improves the hardening hydration process of cement；With rubber powder first through base extraction, then through sol-gal process the rubber powder coated using sodium metasilicate as presoma is modified through siloxanes, then handled through mixed surfactant, obtained rubber powder additive, reduce a possibility that expansion cracks；Four hydroxyethyl diamines, triisopropanolamine, diethanol monoisopropanolamine etc. is added, so that aquation is more abundant, improves cement part performance.The present invention is solved easily to expand in current cement hydrating hardening process and be cracked, the low problem of the compression strength of cement after hydration and hardening.
Description
Technical field
The present invention relates to a kind of hydrated cementitious hardening additives and preparation method thereof, belong to the field of building materials.
Background technique
During cement additive refers to cement applications, to improve or realizing auxiliary agent that various characteristics are added, such as plus
The fast dry and hard speed of cement, improve cement it is dry and hard after intensity or reducing cement water consumption, as a kind of chemical activator, cement
Additive can also improve concrete scroll and excite the hydration activity of each mixing material, to improve cement early strength and later period
Intensity, therefore a certain amount of cement additive would generally be added finished cement is adjusted in carrying out cement production process
Performance.The cement additive of city's pin at present, is easy to produce crackle, compression strength is low.
Summary of the invention
The technical problems to be solved by the invention: for easily expansion cracks in current cement hydrating hardening process, water
The low problem of compression strength for changing cement after hardening provides a kind of hydrated cementitious hardening additive and preparation method thereof.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of hydrated cementitious hardening additive, includes following component, 8 ~ 15 parts of anti-mud additives, 20 ~ 50 parts according to the mass fraction
Rubber powder additive, 60 ~ 80 parts of compound spikes, 3 ~ 8 parts of hydrated cementitious additives, 3 ~ 6 parts of tartaric acid；
The preparation method of the anti-mud additive, includes the following steps:
According to the mass fraction, 2 ~ 5 parts of allyl ethoxylated ethers, 3 ~ 6 parts of vinyl polyethers, 1 ~ 3 part of thioacetic acid, 2 ~ 4 parts are taken
Acrylamide, 20 ~ 25 parts of maleic anhydrides, 100 ~ 150 parts of deionized waters, are stirred, obtain stirring mixture, take hydrogen peroxide by matter
Amount is added dropwise in stirring mixture than 3 ~ 5:40 ~ 50, is controlled 20 ~ 40min of time for adding, is stirred, obtains mixed liquor, and dimension is taken to give birth to
Deionized water is added in plain C 1 ~ 5:9 in mass ratio ~ 15, obtains mixed liquor a, takes 1 ~ 5:90 ~ 100 in mass ratio mixed liquor a to be added dropwise to mixed
It closes in liquid, controls 30 ~ 60min of time for adding, add the acrylamide of mixed liquor quality 3 ~ 5%, heat preservation is to get the addition of anti-mud
Agent.
The heat-retaining condition of the anti-mud additive are as follows: in 30 ~ 35 DEG C of 2 ~ 4h of heat preservation.
The rubber powder additive:
(1) take 100 mesh rubber powder 2 ~ 5:10 in mass ratio ~ 20 be added mass fraction be 10% sodium hydroxide solution, stand 30 ~
50min, filtering, takes filter residue and drying, obtains dried object, take 40 ~ 50 parts of dried objects, 10 ~ 20 parts of sodium metasilicate, 90 ~ 150 parts of anhydrous second
Alcohol, 1 ~ 3 part of γ-(2,3- glycidoxy) propyl trimethoxy silicane, are stirred, and are that 25 ~ 30 DEG C stand 2 ~ 4 days, do
It is dry, obtain dried object a；
(2) according to the mass fraction, 3 ~ 8 parts of sorbitan monopalmitates, 1 ~ 3 part of neopelex, 2 ~ 5 parts of dichloros are taken
Sodium isocyanurate, 80 ~ 100 parts of deionized waters are stirred, and obtain mixture, take mixture 10 ~ 20:3 in mass ratio ~ 6 to be added dry
It is stirred, stands in dry object a, filtering takes filter cake to stand in 65 ~ 70 DEG C to get rubber powder additive.
Condition is stirred in the step (1) are as follows: is stirred 3 ~ 5h in 55 ~ 60 DEG C.
Mixture is stirred condition in the step (2) are as follows: is stirred 1 ~ 3h in 35 ~ 40 DEG C.
The compound spike: taking Pb-Zn tailings 3 ~ 6:1 in mass ratio ~ 4 that the mixing of lithium slag is added, ground 200 meshes,
Collect mixing sieving particle to get.
The hydrated cementitious additive: take four hydroxyethyl diamines, 5 ~ 8:1 in mass ratio ~ 3:2 ~ 4 that triisopropanolamine, two is added
Ethyl alcohol monoisopropanolamine mixing to get.
A kind of hydrated cementitious hardening additive is blended the preparation method comprises the following steps: hydrated cementitious is hardened additive raw material,
In 300r/min be stirred 1 ~ 3h to get.
The present invention is compared with other methods, and advantageous effects are:
(1) for the present invention using oxidant as hydrogen peroxide, reducing agent is vitamin C, and maleic anhydride, vinyl polyether etc. are that polymerization is single
Body, thioacetic acid are chain-transferring agent, are polymerize, and form anti-mud additive, wherein acrylamide draws in polymer molecular chain
Enter amino group, provides better grinding-aid effect, maleic anhydride is since the feature of its difficult homopolymerization is easier to and has power supplying groups
Double bond copolymerization, forms equally distributed chain structure, carboxylic group can be complexed with the calcium ion of cement particle surface, be conducive to
Polymer molecular chain is preferably adsorbed on cement particle surface, and the electronegativity of carboxyl is conducive to cement colloid and preferably divides
It dissipates, the ether in allyl ethoxylated ether has preferable water-reduction, and vinyl polyether is as surfactant, due to containing
There is longer nonionic branch to advantageously reduce cement particle surface tension, while in cement hydration process, vinyl polyether
The steric effect of long-chain branch can better disperse cement particles, improve the hardening hydration process of cement；
(2) present invention then is modified through siloxanes using sodium metasilicate as presoma through sol-gal process with rubber powder first through base extraction
The rubber powder of cladding, then handled through mixed surfactant, obtain rubber powder additive, nonionic surfactant D-sorbite list
Ionic bond is not present in palmitate, but group hydrophily is stronger, is attached to more oxygen-containing functional group, anionic surfactant
The compatibility in hydration process with water can be enhanced by the anion that self-ionization goes out in neopelex, makes rubber powder
Hydrophily enhancing, contact angle reduce, the reversible transition in rubber powder molecular structure between carbonyl and polyalcohol, some polar groups with
The hydrogen bond association of water, while rubber powder is formed by latex film with resistance effect, rubber powder in cement is added, and there is elasticity to make
With can undertake partial moisture breathing and affect, reduce a possibility that expansion cracks；
(3) present invention introduces lithium slag, zinc lead tailing, the dosage of cement in cementitious material is reduced after incorporation, it is made to participate in reaction
Particle tail off, further reduced the total amount of chemical bonding water under each age, compactness improved, in the excitation of alkaline environment
In, make in compound spike with [SiO existing for tetrahedral geometry4] and [AlO4] depolymerization generation H3AlO4 2-And H3SiO4-, and and Na+And Ca2+Reaction generates zeolites hydrated product, promotes the hydration process of cement, the compound spike later period carry out cement slurry into
When row calcining, temperature is increased, and a large amount of calcium oxide, magnesium carbonate, Decomposition of Calcium Carbonate generate, the calcium oxide that dissociates in material and can and
Silica, aluminium oxide, iron oxide in raw material react, and generate clinker, as temperature continues to increase, the mineral quantity of decomposition
It is more and more, clinker mineral C can be made4AF、C2S、C3A is largely generated；
(4) four hydroxyethyl diamines, triisopropanolamine, diethanol monoisopropanolamine etc. is added in the present invention, increases in hydration process
Grinding aid water-reducing effect, while tartaric acid plays certain regulating and controlling effect to the concentration of calcium hydroxide in slurry, extends process
Reaction time improve cement part performance so that aquation is more abundant.
Specific embodiment
Lithium slag: mainly contain silica 58.54%, aluminium oxide 19.34%, iron oxide 1.44%, calcium oxide 7.34%, magnesia
0.73%, sulfur trioxide 6.28%.
Zinc lead tailing: mainly containing silica 54.12%, aluminium oxide 10.3%, iron oxide 12.55%, calcium oxide 13.99%,
Magnesia 4.63%.
Anti- mud additive: according to the mass fraction, 2 ~ 5 parts of allyl ethoxylated ethers, 3 ~ 6 parts of vinyl polyethers, 1 ~ 3 part are taken
Thioacetic acid, 2 ~ 4 parts of acrylamides, 20 ~ 25 parts of maleic anhydrides, 100 ~ 150 parts of deionized waters, are stirred 30 ~ 50min, obtain
Mixture is stirred, takes hydrogen peroxide 3 ~ 5:40 ~ 50 to be in mass ratio added dropwise in stirring mixture, controls 20 ~ 40min of time for adding,
It is stirred 30 ~ 50min, obtains mixed liquor, takes vitamin C 1 ~ 5:9 in mass ratio ~ 15 that deionized water is added, obtains mixed liquor a, take
1 ~ 5:90 ~ 100 in mass ratio mixed liquor a are added dropwise in mixed liquor, are controlled 30 ~ 60min of time for adding, are added mixed liquor quality
3 ~ 5% acrylamide, in 30 ~ 35 DEG C of 2 ~ 4h of heat preservation to get anti-mud additive.
Rubber powder additive:
(1) take 100 mesh rubber powder 2 ~ 5:10 in mass ratio ~ 20 be added mass fraction be 10% sodium hydroxide solution, stand 30 ~
50min, filtering, takes filter residue and drying, obtains dried object, take 40 ~ 50 parts of dried objects, 10 ~ 20 parts of sodium metasilicate, 90 ~ 150 parts of anhydrous second
Alcohol, 1 ~ 3 part of γ-(2,3- glycidoxy) propyl trimethoxy silicane, are stirred 3 ~ 5h in 55 ~ 60 DEG C, are 25 ~ 30 DEG C
2 ~ 4 days are stood, it is dry, obtain dried object a；
(2) according to the mass fraction, 3 ~ 8 parts of sorbitan monopalmitates, 1 ~ 3 part of neopelex, 2 ~ 5 parts of dichloros are taken
Sodium isocyanurate, 80 ~ 100 parts of deionized waters, are stirred 1 ~ 3h in 35 ~ 40 DEG C, obtain mixture, take mixture in mass ratio 10
~ 20:3 ~ 6 is added in dried object a, is stirred 30 ~ 50min, stands 3 ~ 5h, filtering, take filter cake stand 10 in 65 ~ 70 DEG C ~
15h is to get rubber powder additive.
Compound spike: it takes Pb-Zn tailings 3 ~ 6:1 in mass ratio ~ 4 that the mixing of lithium slag is added, ground 200 meshes, collect
Mixing sieving particle to get.
Hydrated cementitious additive: take four hydroxyethyl diamines, 5 ~ 8:1 in mass ratio ~ 3:2 ~ 4 that triisopropanolamine, diethanol is added
Monoisopropanolamine mixing to get.
A kind of hydrated cementitious hardening additive, according to the mass fraction, including 8 ~ 15 parts of anti-mud additives, 20 ~ 50 parts of rubber powders
Additive, 60 ~ 80 parts of compound spikes, 3 ~ 8 parts of hydrated cementitious additives, 3 ~ 6 parts of tartaric acid.
Hydrated cementitious hardening additive of the present invention is total to the preparation method comprises the following steps: hydrated cementitious is hardened additive raw material
It is mixed, in 300r/min be stirred 1 ~ 3h to get.
Lithium slag: mainly contain silica 58.54%, aluminium oxide 19.34%, iron oxide 1.44%, calcium oxide 7.34%, magnesia
0.73%, sulfur trioxide 6.28%.
Zinc lead tailing: mainly containing silica 54.12%, aluminium oxide 10.3%, iron oxide 12.55%, calcium oxide 13.99%,
Magnesia 4.63%.
Anti- mud additive: according to the mass fraction, 2 parts of allyl ethoxylated ethers, 3 parts of vinyl polyethers, 1 part of sulfydryl second are taken
Acid, 2 parts of acrylamides, 20 parts of maleic anhydrides, 100 parts of deionized waters, are stirred 30min, obtain stirring mixture, take hydrogen peroxide
3:40 in mass ratio is added dropwise in stirring mixture, is controlled time for adding 20min, is stirred 30min, obtains mixed liquor, take dimension
Deionized water is added in raw element C 1:9 in mass ratio, obtains mixed liquor a, mixed liquor a 1:90 in mass ratio is taken to be added dropwise in mixed liquor, controls
Time for adding 30min processed, adds the acrylamide of mixed liquor quality 3%, in 30 DEG C of heat preservation 2h to get anti-mud additive.
Rubber powder additive:
(1) it takes 100 mesh rubber powders 2:10 in mass ratio that the sodium hydroxide solution that mass fraction is 10% is added, stands 30min, mistake
Filter, takes filter residue and drying, obtains dried object, take 40 parts of dried objects, 10 parts of sodium metasilicate, 90 parts of dehydrated alcohols, 1 part of γ-(2,3- epoxy third
Oxygroup) propyl trimethoxy silicane, it is stirred 3h in 55 DEG C, is that 25 DEG C stand 2 days, it is dry, obtain dried object a；
(2) according to the mass fraction, 3 parts of sorbitan monopalmitates, 1 part of neopelex, 2 parts of dichloro isocyanuric urines are taken
Sour sodium, 80 parts of deionized waters, are stirred 1h in 35 DEG C, obtain mixture, take mixture 10:3 in mass ratio that dried object a is added
In, it is stirred 30min, stands 3h, filtering takes filter cake in 65 DEG C of standing 10h to get rubber powder additive.
Compound spike: it takes Pb-Zn tailings 3:1 in mass ratio that the mixing of lithium slag is added, ground 200 meshes, collect mixing
Be sieved particle to get.
Hydrated cementitious additive: take four hydroxyethyl diamines 5:1:2 in mass ratio that triisopropanolamine, diethanol list isopropyl is added
Hydramine mixing to get.
A kind of hydrated cementitious hardens additive, according to the mass fraction, including 8 parts of anti-mud additives, 20 parts of rubber powder additives,
60 parts of compound spikes, 3 parts of hydrated cementitious additives, 3 parts of tartaric acid.
Hydrated cementitious hardening additive of the present invention is total to the preparation method comprises the following steps: hydrated cementitious is hardened additive raw material
It is mixed, in 300r/min be stirred 1h to get.
Lithium slag: mainly contain silica 58.54%, aluminium oxide 19.34%, iron oxide 1.44%, calcium oxide 7.34%, magnesia
0.73%, sulfur trioxide 6.28%.
Zinc lead tailing: mainly containing silica 54.12%, aluminium oxide 10.3%, iron oxide 12.55%, calcium oxide 13.99%,
Magnesia 4.63%.
Anti- mud additive: according to the mass fraction, 5 parts of allyl ethoxylated ethers, 6 parts of vinyl polyethers, 3 parts of sulfydryl second are taken
Acid, 4 parts of acrylamides, 25 parts of maleic anhydrides, 150 parts of deionized waters, are stirred 50min, obtain stirring mixture, take hydrogen peroxide
5:50 in mass ratio is added dropwise in stirring mixture, is controlled time for adding 40min, is stirred 50min, obtains mixed liquor, take dimension
Deionized water is added in raw element C 5:15 in mass ratio, obtains mixed liquor a, mixed liquor a 5:100 in mass ratio is taken to be added dropwise in mixed liquor,
Time for adding 60min is controlled, the acrylamide of mixed liquor quality 5% is added, in 35 DEG C of heat preservation 4h to get anti-mud additive.
Rubber powder additive:
(1) it takes 100 mesh rubber powders 5:20 in mass ratio that the sodium hydroxide solution that mass fraction is 10% is added, stands 50min, mistake
Filter, takes filter residue and drying, obtains dried object, take 50 parts of dried objects, 20 parts of sodium metasilicate, 150 parts of dehydrated alcohols, 3 parts of γ-(2,3- epoxies
Propoxyl group) propyl trimethoxy silicane, it is stirred 5h in 60 DEG C, is that 30 DEG C stand 4 days, it is dry, obtain dried object a；
(2) according to the mass fraction, 8 parts of sorbitan monopalmitates, 3 parts of neopelexes, 5 parts of dichloro isocyanuric urines are taken
Sour sodium, 100 parts of deionized waters, are stirred 3h in 40 DEG C, obtain mixture, take mixture 20:6 in mass ratio that dried object a is added
In, it is stirred 50min, stands 5h, filtering takes filter cake in 70 DEG C of standing 15h to get rubber powder additive.
Compound spike: it takes Pb-Zn tailings 6:4 in mass ratio that the mixing of lithium slag is added, ground 200 meshes, collect mixing
Be sieved particle to get.
Hydrated cementitious additive: take four hydroxyethyl diamines 8:3:4 in mass ratio that triisopropanolamine, diethanol list isopropyl is added
Hydramine mixing to get.
A kind of hydrated cementitious hardening additive, according to the mass fraction, including 15 parts of anti-mud additives, 50 parts of rubber powders additions
Agent, 80 parts of compound spikes, 8 parts of hydrated cementitious additives, 6 parts of tartaric acid.
Hydrated cementitious hardening additive of the present invention is total to the preparation method comprises the following steps: hydrated cementitious is hardened additive raw material
It is mixed, in 300r/min be stirred 3h to get.
Lithium slag: mainly contain silica 58.54%, aluminium oxide 19.34%, iron oxide 1.44%, calcium oxide 7.34%, magnesia
0.73%, sulfur trioxide 6.28%.
Zinc lead tailing: mainly containing silica 54.12%, aluminium oxide 10.3%, iron oxide 12.55%, calcium oxide 13.99%,
Magnesia 4.63%.
Anti- mud additive: according to the mass fraction, 3 parts of allyl ethoxylated ethers, 5 parts of vinyl polyethers, 2 parts of sulfydryl second are taken
Acid, 3 parts of acrylamides, 22 parts of maleic anhydrides, 120 parts of deionized waters, are stirred 40min, obtain stirring mixture, take hydrogen peroxide
4:45 in mass ratio is added dropwise in stirring mixture, is controlled time for adding 30min, is stirred 40min, obtains mixed liquor, take dimension
Deionized water is added in raw element C 3:13 in mass ratio, obtains mixed liquor a, mixed liquor a 3:95 in mass ratio is taken to be added dropwise in mixed liquor,
Time for adding 50min is controlled, the acrylamide of mixed liquor quality 4% is added, in 32 DEG C of heat preservation 3h to get anti-mud additive.
Rubber powder additive:
(1) it takes 100 mesh rubber powders 3:13 in mass ratio that the sodium hydroxide solution that mass fraction is 10% is added, stands 40min, mistake
Filter, takes filter residue and drying, obtains dried object, take 45 parts of dried objects, 15 parts of sodium metasilicate, 120 parts of dehydrated alcohols, 2 parts of γ-(2,3- epoxies
Propoxyl group) propyl trimethoxy silicane, it is stirred 4h in 59 DEG C, is that 27 DEG C stand 3 days, it is dry, obtain dried object a；
(2) according to the mass fraction, 5 parts of sorbitan monopalmitates, 2 parts of neopelexes, 3 parts of dichloro isocyanuric urines are taken
Sour sodium, 90 parts of deionized waters, are stirred 2h in 37 DEG C, obtain mixture, take mixture 15:5 in mass ratio that dried object a is added
In, it is stirred 35min, stands 4h, filtering takes filter cake in 67 DEG C of standing 13h to get rubber powder additive.
Compound spike: it takes Pb-Zn tailings 5:3 in mass ratio that the mixing of lithium slag is added, ground 200 meshes, collect mixing
Be sieved particle to get.
Hydrated cementitious additive: take four hydroxyethyl diamines 6:2:3 in mass ratio that triisopropanolamine, diethanol list isopropyl is added
Hydramine mixing to get.
A kind of hydrated cementitious hardening additive, according to the mass fraction, including 11 parts of anti-mud additives, 30 parts of rubber powders additions
Agent, 70 parts of compound spikes, 5 parts of hydrated cementitious additives, 5 parts of tartaric acid.
Hydrated cementitious hardening additive of the present invention is total to the preparation method comprises the following steps: hydrated cementitious is hardened additive raw material
It is mixed, in 300r/min be stirred 2h to get.
Comparative example 1: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking anti-mud additive.
Comparative example 2: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking rubber powder additive.
Comparative example 3: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking compound spike.
Comparative example 4: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking hydrated cementitious additive.
Comparative example 5: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking tartaric acid.
Comparative example 6: the hydrated cementitious of Hangzhou company production hardens additive.
Above-mentioned cement mixing ratio is weighed to the clinker of grinding, gypsum and each mixing material (flyash, chrome-bearing steel ironworker's industry
Waste residue) total 5Kg, by the 0.10%(5g of cement quality) incorporation hydrated cementitious hardens additive, tentatively mix to obtain mixture.It will mill
Intracorporal excess material is removed completely, and the mixture is subsequently poured into.Close grinding door, booting grinding.Grinding time and comparative example phase
Together.Added hydrated cementitious hardening additive respectively corresponds in Application Example 1 ~ 3 adds for 1 ~ 3 gained cement liquid of embodiment
Add agent.According to GB/T1346-2011 " cement setting time, consumptive use of water normal consistence, stability detection method "；GB175-2007
" common portland cement "；" cement pressure steams peace by GB/T17671-1999 " cement mortar strength test method ", GB/T750-1992
Qualitative test method " etc. standard testings cement performance, the specific physical and chemical performance of cement be shown in Table 1.
Table 1:
In summary, hydrated cementitious of the invention hardening additive effect is more preferable, is worth of widely use.
Claims (8)
1. a kind of hydrated cementitious hardens additive, which is characterized in that according to the mass fraction include following component, 8 ~ 15 parts of anti-mud add
Add agent, 20 ~ 50 parts of rubber powder additives, 60 ~ 80 parts of compound spikes, 3 ~ 8 parts of hydrated cementitious additives, 3 ~ 6 parts of tartaric acid；
The preparation method of the anti-mud additive, includes the following steps:
According to the mass fraction, 2 ~ 5 parts of allyl ethoxylated ethers, 3 ~ 6 parts of vinyl polyethers, 1 ~ 3 part of thioacetic acid, 2 ~ 4 parts are taken
Acrylamide, 20 ~ 25 parts of maleic anhydrides, 100 ~ 150 parts of deionized waters, are stirred, obtain stirring mixture, take hydrogen peroxide by matter
Amount is added dropwise in stirring mixture than 3 ~ 5:40 ~ 50, is controlled 20 ~ 40min of time for adding, is stirred, obtains mixed liquor, and dimension is taken to give birth to
Deionized water is added in plain C 1 ~ 5:9 in mass ratio ~ 15, obtains mixed liquor a, takes 1 ~ 5:90 ~ 100 in mass ratio mixed liquor a to be added dropwise to mixed
It closes in liquid, controls 30 ~ 60min of time for adding, add the acrylamide of mixed liquor quality 3 ~ 5%, heat preservation is to get the addition of anti-mud
Agent.
2. hydrated cementitious according to claim 1 hardens additive, which is characterized in that the heat preservation strip of the anti-mud additive
Part are as follows: in 30 ~ 35 DEG C of 2 ~ 4h of heat preservation.
3. hydrated cementitious according to claim 1 hardens additive, which is characterized in that the rubber powder additive:
(1) take 100 mesh rubber powder 2 ~ 5:10 in mass ratio ~ 20 be added mass fraction be 10% sodium hydroxide solution, stand 30 ~
50min, filtering, takes filter residue and drying, obtains dried object, take 40 ~ 50 parts of dried objects, 10 ~ 20 parts of sodium metasilicate, 90 ~ 150 parts of anhydrous second
Alcohol, 1 ~ 3 part of γ-(2,3- glycidoxy) propyl trimethoxy silicane, are stirred, and are that 25 ~ 30 DEG C stand 2 ~ 4 days, do
It is dry, obtain dried object a；
(2) according to the mass fraction, 3 ~ 8 parts of sorbitan monopalmitates, 1 ~ 3 part of neopelex, 2 ~ 5 parts of dichloros are taken
Sodium isocyanurate, 80 ~ 100 parts of deionized waters are stirred, and obtain mixture, take mixture 10 ~ 20:3 in mass ratio ~ 6 to be added dry
It is stirred, stands in dry object a, filtering takes filter cake to stand in 65 ~ 70 DEG C to get rubber powder additive.
4. hydrated cementitious according to claim 3 hardens additive, which is characterized in that be stirred in the step (1)
Condition are as follows: be stirred 3 ~ 5h in 55 ~ 60 DEG C.
5. hydrated cementitious according to claim 3 hardens additive, which is characterized in that mixture in the step (2)
It is stirred condition are as follows: be stirred 1 ~ 3h in 35 ~ 40 DEG C.
6. hydrated cementitious according to claim 1 hardens additive, which is characterized in that the compound spike: take lead zinc tail
The mixing of lithium slag is added in mine 3 ~ 6:1 in mass ratio ~ 4, grinds 200 meshes, collect mixing sieving particle to get.
7. hydrated cementitious according to claim 1 hardens additive, which is characterized in that the hydrated cementitious additive: take
Four hydroxyethyl diamines, 5 ~ 8:1 in mass ratio ~ 3:2 ~ 4 be added triisopropanolamine, the mixing of diethanol monoisopropanolamine to get.
8. a kind of preparation method of the hydrated cementitious hardening additive as described in claim 1 ~ 7 any one, which is characterized in that
Should the preparation method comprises the following steps: by hydrated cementitious hardening additive raw material be blended, in 300r/min be stirred 1 ~ 3h to get.
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| CN112028538A (en) * | 2020-08-28 | 2020-12-04 | 南通市展成商品混凝土有限公司 | Green and environment-friendly water reducing agent and recycled concrete using same |
| CN112028538B (en) * | 2020-08-28 | 2022-04-22 | 南通市展成商品混凝土有限公司 | Green and environment-friendly water reducing agent and recycled concrete using same |
| CN117342849A (en) * | 2023-12-04 | 2024-01-05 | 北京慕湖外加剂有限公司 | Concrete for tubular pile, compressive steaming-free prestressed concrete tubular pile and tubular pile preparation method |
| CN117342849B (en) * | 2023-12-04 | 2024-03-12 | 北京慕湖外加剂有限公司 | Concrete for tubular pile, compressive steaming-free prestressed concrete tubular pile and tubular pile preparation method |
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Application publication date: 20190101 |