CN105366984A - Wet-mixed mortar water-retention plasticizer, and preparation method thereof - Google Patents
Wet-mixed mortar water-retention plasticizer, and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a wet-mixed mortar water-retention plasticizer, and a preparation method thereof. The wet-mixed mortar water-retention plasticizer comprises a water-retention thickening ingredient and an opening time adjusting ingredient at a mass ratio of 100:5-20; the water-retention thickening ingredient is prepared from 100 parts of water, 0.5 to 1.0 part of cellulose ether, 0 to 0.5 part of modified starch ether, 0.5 to 1.0 part of an ether polycarboxylate water reducer, 0.2 to 1.0 part of an air entraining agent, and 0.05 to 0.1 part of an antifoaming agent; and the opening time adjusting ingredient is prepared from, by weight, 100 parts of water, 5.0 to 10 parts of an ester polycarboxylate slump retaining agent, 1.0 to 2.0 parts of a foam stabilizer, and 10 to 20 parts of a retarder. The wet-mixed mortar water-retention plasticizer has thickening, water reducing, water retention, plastification, and crack resisting functions, and especially has adjusting functions on opening time of wet-mixed mortar.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of wet mixing mortar water conservation softening agent and preparation method thereof.
Background technology
Wet mixing mortar is cement, mineral admixture, fine aggregate, admixture and water, according to a certain percentage, in specialized producer through metering, after mixing, agitator truck is adopted to be transported to place to use, put into special container to store, and the wet-mixing mixture of finishing using at the appointed time, be widely used in building by laying bricks or stones, wipe one's face, in the engineerings such as grouting and bonding applique surface material, there is speed of application fast, quality easily ensures, environmental protection construction, several functions, be beneficial to the advantages such as the popularization of building new technology and Modern Construction technology, meet China's Economic development and construction industry development trend, a kind of New Building Materials that Ye Shi China is wideling popularize at present.
Wet mixing mortar admixture is that one is specially adapted for the matching used chemical additive of wet mixing mortar, the mortar engineering that particularly suitable has the longer engineering time to require.There is the functions such as thickening, water conservation and cracking resistance, while improving wet mixing mortar workability and cohesiveness, can also open hour of significant prolongation wet mixing mortar.
At present, a small amount of report in wet mixing mortar admixture has been had.CN104926192A discloses a kind of mortar plasticizer, and this mortar plasticizer can improve mortar ultimate compression strength, bond workability that is strong and mortar.But containing the solids component such as silicon-dioxide, titanium dioxide in this softening agent, when obtaining liq mortar plasticizer, be difficult to reach homogeneous state with water and other organic constituentses, be not easy to transport and store.CN104556811A discloses a kind of wet mixing mortar properties-correcting agent, the guarantor of wet mixing mortar properties-correcting agent of the present invention moulds time lengthening to 36h, improve wet mixing mortar later strength, cohesiveness simultaneously, improve mortar durability, improve motar and easily open the problems such as drum, crack and seepage.But the admixture of this invention can not open hour of accurate adjustment wet mixing mortar.
Summary of the invention
The object of the invention is to overcome prior art defect, a kind of wet mixing mortar water conservation softening agent is provided.
Another object of the present invention is to the preparation method that above-mentioned wet mixing mortar water conservation softening agent is provided.
Concrete technical scheme of the present invention is as follows:
A kind of wet mixing mortar water conservation softening agent, comprises water-keeping thickening component and open hour adjustment component that mass ratio is 100:5 ~ 20,
Water-keeping thickening component is made up of the component of following weight part: 100 parts of water, 0.5 ~ 1.0 part of ether of cellulose, 0 ~ 0.5 part of treated starch ether, 0.5 ~ 1.0 part of ethers poly carboxylic acid series water reducer, 0.2 ~ 1.0 part of air entrapment agent and 0.05 ~ 0.1 part of defoamer, above-mentioned ethers poly carboxylic acid series water reducer is made up of vinylformic acid and the first polyether monomer, and this first polyether monomer is allyl alcohol polyethenoxy ether, isopentenol polyoxyethylene ether or methacrylic Soxylat A 25-7;
Open hour regulate component to be made up of the component of following weight part: 100 weight parts waters, 5.0 ~ 10 weight part ester class polycarboxylic acid slump retaining agents, 1.0 ~ 2.0 weight part suds-stabilizing agents and 10 ~ 20 weight part retardant, above-mentioned ester class polycarboxylic acid slump retaining agent is made up of vinylformic acid, methoxy poly (ethylene glycol) ether and the second polyether monomer, and this second polyether monomer is allyl alcohol polyethenoxy ether, isopentenol polyoxyethylene ether or methacrylic Soxylat A 25-7.
In a preferred embodiment of the invention, described ether of cellulose is at least one of methyl cellulose ether, hydroxypropyl methyl cellulose ether, hydroxyethyl ether cellulose and TYLOSE 30000.
In a preferred embodiment of the invention, described treated starch ether is at least one in hydroxypropyl starch ether, carboxymethyl starch ether and guar gum ether.
In a preferred embodiment of the invention, described air entrapment agent is at least one in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, polyoxyethylenated alcohol sodium sulfate, α-sodium olefin sulfonate and triterpenoid saponin air entrapment agent.
In a preferred embodiment of the invention, described suds-stabilizing agent is at least one in dimethyl dodecyl amine oxide, lauric acid amide of ethanol, silicone amide and polyvinyl alcohol.
In a preferred embodiment of the invention, described defoamer is at least one of polyoxypropylene ethylene oxide glyceryl ether polyoxyethylene polyoxypropylene tetramethylolmethane ether and polyoxyethylene polyoxy propyl alcohol amidogen ether.
In a preferred embodiment of the invention, described retardant is at least one of sugared calcium, tartrate and Seignette salt.
Preferred further, above-mentioned water is distilled water.
The preparation method of above-mentioned wet mixing mortar water conservation softening agent, comprises the steps:
(1) each component is taken than with corresponding weight part in mass ratio;
(2) under normal temperature, ether of cellulose and treated starch ether is slowly added while stirring in water, stirring 0.5 ~ 1.0h is kept after reinforced, after leaving standstill 2 ~ 4h, add ethers poly carboxylic acid series water reducer, air entrapment agent and defoamer again, 0.5 ~ 1.0h is left standstill, i.e. obtained water-keeping thickening component after stirring 1.0 ~ 2.0h;
(3) under normal temperature, add ester class polycarboxylic acid slump retaining agent, suds-stabilizing agent and retardant in water, after leaving standstill 0.5 ~ 1.0h after stirring 1.0 ~ 2.0h, namely the obtained open hour regulate component;
(4) above-mentioned water-keeping thickening component and open hour are regulated component mix and blend 1.0 ~ 2.0h in mass ratio, then leave standstill 0.5 ~ 1.0h, be i.e. obtained wet mixing mortar water conservation softening agent.
The invention has the beneficial effects as follows:
1, wet mixing mortar water conservation softening agent of the present invention integrates the functions such as thickening, diminishing, water conservation, plasticising and cracking resistance, especially has adjustable function to the open hour of wet mixing mortar.
2, wet mixing mortar water conservation softening agent of the present invention regulates the part by weight of component by adjustment water-keeping thickening component and open hour, and the volume of wet mixing mortar water conservation softening agent, can make the scope that the open hour of wet mixing mortar control at 6 ~ 48h.
3, preparation method of the present invention adopts normal temperature and pressure technique, and the product of preparation is the liquid product of stable homogeneous, is adapted at the application of wet mixing mortar stirring station heavy industrialization, produces, transports, stores all easily, be conducive to suitability for industrialized production.
4, preparation method of the present invention does not produce waste gas, waste water and solid waste in commercial process, energy-conserving and environment-protective.
Embodiment
Below by way of embodiment, technical scheme of the present invention is further detailed and is described.
Embodiment 1
(1) preparation of water-keeping thickening component: under normal temperature condition, 0.5 weight part hydroxypropyl methyl cellulose ether and 0.3 weight part hydroxypropyl starch ether is slowly added while stirring in 100 weight part distilled water, keep again after reinforced stirring 0.5h, after leaving standstill 3h, add 0.3 weight part ethers polycarboxylic acid water reducing agent (being made up of vinylformic acid and isopentenol polyoxyethylene ether), 0.4 weight part Sodium dodecylbenzene sulfonate and 0.05 weight part polyoxypropylene ethylene oxide glyceryl ether again, 0.5h is left standstill, i.e. obtained water-keeping thickening component after stirring 1.0h;
(2) open hour regulate the preparation of component: under normal temperature condition, 5.0 weight part ester class polycarboxylic acid slump retaining agents (being made up of vinylformic acid, methoxy poly (ethylene glycol) ether and methacrylic Soxylat A 25-7), 1.0 weight part lauric acid amide of ethanol and 15 weight parts sugar calcium is added successively in 100 weight part distilled water, leave standstill 0.5h after stirring 1.0h, namely the obtained open hour regulate component;
(3) preparation of wet mixing mortar water conservation softening agent: under normal temperature condition, adds 5 weight part open hour adjustment component, stirs 2.0h, then leave standstill 0.5h, be i.e. obtained wet mixing mortar water conservation softening agent M-1 in 100 weight part water-keeping thickening components.
Embodiment 2
(1) preparation of water-keeping thickening component: under normal temperature condition, 0.7 weight part methyl cellulose ether and 0.2 weight part hydroxypropyl starch ether is slowly added while stirring in 100 weight part distilled water, keep again after reinforced stirring 0.5h, after leaving standstill 2h, add 0.5 weight part ethers polycarboxylic acid water reducing agent (being made up of vinylformic acid and allyl alcohol polyethenoxy ether), 0.6 weight part triterpenoid saponin air entrapment agent and 0.05 parts by weight of polyoxyethylene polyoxypropylene tetramethylolmethane ether again, 1.0h is left standstill, i.e. obtained water-keeping thickening component after stirring 1.5h;
(2) open hour regulate the preparation of component: under normal temperature condition, 10 weight part ester class polycarboxylic acid slump retaining agents (being made up of vinylformic acid, methoxy poly (ethylene glycol) ether and isopentenol polyoxyethylene ether), 1.5 weight part dimethyl dodecyl amine oxides and 20 weight parts sugar calcium is added successively in 100 weight part distilled water, leave standstill 1.0h after stirring 1.0h, namely the obtained open hour regulate component;
(3) preparation of wet mixing mortar water conservation softening agent: under normal temperature condition, adds 10 weight part open hour adjustment component in 100 weight part water-keeping thickening components, stirs 2.0h, then leave standstill 0.5h, be i.e. obtained wet mixing mortar water conservation softening agent M-2.
Embodiment 3
(1) preparation of water-keeping thickening component: under normal temperature condition, 0.5 weight part TYLOSE 30000 and 0.5 weight part carboxymethyl starch ether is slowly added while stirring in 100 weight part distilled water, keep again after reinforced stirring 1.0h, after leaving standstill 4h, add 0.8 weight part ethers polycarboxylic acid water reducing agent (being made up of vinylformic acid and allyl alcohol polyethenoxy ether), 0.8 parts by weight of fatty polyoxyethylenated alcohol sodium sulfate and 0.08 weight part polyoxypropylene ethylene oxide glyceryl ether again, 1.0h is left standstill, i.e. obtained water-keeping thickening component after stirring 1.5h;
(2) open hour regulate the preparation of component: under normal temperature condition, 8 weight part ester class polycarboxylic acid slump retaining agents (being made up of vinylformic acid, methoxy poly (ethylene glycol) ether and methacrylic Soxylat A 25-7), 1.0 weight part dimethyl dodecyl amine oxides, 0.5 weight part lauric acid amide of ethanol, 10 weight part sugar calcium and 5 weight part tartrate are added successively in 100 weight part distilled water, leave standstill 1.0h after stirring 1.5h, namely the obtained open hour regulate component;
(3) preparation of wet mixing mortar water conservation softening agent: under normal temperature condition, adds 10 weight part open hour adjustment component in 100 weight part water-keeping thickening components, stirs 1.5h, then leave standstill 0.5h, be i.e. obtained wet mixing mortar water conservation softening agent M-3.
Embodiment 4
(1) preparation of water-keeping thickening component: under normal temperature condition, 0.6 weight part hydroxypropyl methyl cellulose ether and 0.6 weight part guar gum ether is slowly added while stirring in 100 weight part distilled water, keep again after reinforced stirring 0.5h, after leaving standstill 3h, add 0.6 weight part ethers polycarboxylic acid water reducing agent (being made up of vinylformic acid and methacrylic Soxylat A 25-7), 0.2 weight part α-sodium olefin sulfonate and 0.05 parts by weight of polyoxyethylene polyoxy propyl alcohol amidogen ether again, 0.5h is left standstill, i.e. obtained water-keeping thickening component after stirring 1.5h;
(2) open hour regulate the preparation of component: under normal temperature condition, 8 weight part ester class polycarboxylic acid slump retaining agents (being made up of vinylformic acid, methoxy poly (ethylene glycol) ether and allyl alcohol polyethenoxy ether), 1.0 weight part silicone amide, 1.0 weight part lauric acid amide of ethanol and 20 weight part Seignette salts are added successively in 100 weight part distilled water, leave standstill 0.5h after stirring 2.0h, namely the obtained open hour regulate component;
(3) preparation of wet mixing mortar water conservation softening agent: under normal temperature condition, adds 15 weight part open hour adjustment component in 100 weight part water-keeping thickening components, stirs 1.5h, then leave standstill 1.0h, be i.e. obtained wet mixing mortar water conservation softening agent M-4.
Embodiment 5
(1) preparation of water-keeping thickening component: under normal temperature condition, 0.5 weight part hydroxypropyl methyl cellulose ether is slowly added while stirring in 100 weight part distilled water, 0.5 weight part hydroxyethyl ether cellulose, keep again after reinforced stirring 1.0h, after leaving standstill 4h, add 0.5 weight part ethers polycarboxylic acid water reducing agent (being made up of vinylformic acid and methacrylic Soxylat A 25-7) again, 1.0 weight part triterpenoid saponin air entrapment agents, 0.05 weight part polyoxypropylene ethylene oxide glyceryl ether and 0.05 parts by weight of polyoxyethylene polyoxy propyl alcohol amidogen ether, 0.5h is left standstill after stirring 1.5h, i.e. obtained water-keeping thickening component,
(2) open hour regulate the preparation of component: under normal temperature condition, 10 weight part ester class polycarboxylic acid slump retaining agents (being made up of vinylformic acid, methoxy poly (ethylene glycol) ether and isopentenol polyoxyethylene ether), 2.0 weight part silicone amide, 10 weight part sugar calcium and 10 weight part Seignette salts are added successively in 100 weight part distilled water, leave standstill 1.0h after stirring 1.5h, namely the obtained open hour regulate component;
(3) preparation of wet mixing mortar water conservation softening agent: under normal temperature condition, adds 20 weight part open hour adjustment component in 100 weight part water-keeping thickening components, stirs 2.0h, then leave standstill 0.5h, be i.e. obtained wet mixing mortar water conservation softening agent M-5.
The related performance indicators of wet mixing mortar is with reference to GB/T25181-2010 " premixing mortar ".The general physics mechanics performance test such as denseness, water retention, 28d ultimate compression strength, 14d tensile bond strength of wet mixing mortar all carries out with reference to JGJ70-2009 " building mortar basic performance tests method ".Experimental water mud is Guangdong show cement P.O42.5, and experimental test sand is the washed-out sand by 4.75mm sieve, and fineness modulus is 2.4, stone flour to be fineness be 19.7 limestone powder.
It is in the motar of M5 that wet mixing mortar water conservation softening agent M1 ~ M5 in above-described embodiment is applied to strength grade, the mortar mix ratio of test is in table 1, wet mixing mortar performance index reference table 2, the performance test results of wet mixing mortar water conservation softening agent prepared by embodiment 1 ~ 5 is in table 3.
Table 1 wet mixing mortar proportioning
Table 2 wet mixing mortar performance reference index
Table 3 water conservation softening agent is on the impact of wet mixing mortar performance
As can be seen from table 3 contrast and experiment, compared with blank group, water conservation softening agent of the present invention significantly can reduce the 2h denseness rate of loss of wet mixing mortar, greatly increase water retention and the 14d tensile bond strength of wet mixing mortar, under the volume of this water conservation softening agent, the open hour can control the scope at 3 ~ 38h.
Those of ordinary skill in the art are known, when component concentration of the present invention changes in following ranges, still can obtain same as the previously described embodiments or close technique effect, still belong to protection scope of the present invention:
A kind of wet mixing mortar water conservation softening agent, comprises water-keeping thickening component and open hour adjustment component that mass ratio is 100:5 ~ 20,
Water-keeping thickening component is made up of the component of following weight part:
100 parts of water, 0.5 ~ 1.0 part of ether of cellulose, 0 ~ 0.5 part of treated starch ether, 0.5 ~ 1.0 part of ethers poly carboxylic acid series water reducer, 0.2 ~ 1.0 part of air entrapment agent and 0.05 ~ 0.1 part of defoamer, ethers poly carboxylic acid series water reducer is made up of vinylformic acid and the first polyether monomer, and this first polyether monomer is allyl alcohol polyethenoxy ether, isopentenol polyoxyethylene ether or methacrylic Soxylat A 25-7;
Open hour regulate component to be made up of the component of following weight part: 100 weight parts waters, 5.0 ~ 10 weight part ester class polycarboxylic acid slump retaining agents, 1.0 ~ 2.0 weight part suds-stabilizing agents and 10 ~ 20 weight part retardant, ester class polycarboxylic acid slump retaining agent is made up of vinylformic acid, methoxy poly (ethylene glycol) ether and the second polyether monomer, and this second polyether monomer is allyl alcohol polyethenoxy ether, isopentenol polyoxyethylene ether or methacrylic Soxylat A 25-7.
Described ether of cellulose is at least one of methyl cellulose ether, hydroxypropyl methyl cellulose ether, hydroxyethyl ether cellulose and TYLOSE 30000.
Described treated starch ether is at least one in hydroxypropyl starch ether, carboxymethyl starch ether and guar gum ether.
Described air entrapment agent is at least one in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, polyoxyethylenated alcohol sodium sulfate, α-sodium olefin sulfonate and triterpenoid saponin air entrapment agent.
Described suds-stabilizing agent is at least one in dimethyl dodecyl amine oxide, lauric acid amide of ethanol, silicone amide and polyvinyl alcohol.
Described defoamer is at least one of polyoxypropylene ethylene oxide glyceryl ether polyoxyethylene polyoxypropylene tetramethylolmethane ether and polyoxyethylene polyoxy propyl alcohol amidogen ether.
Described retardant is at least one of sugared calcium, tartrate and Seignette salt.
The preparation method of above-mentioned wet mixing mortar water conservation softening agent, comprises the steps:
(1) each component is taken than with corresponding weight part in mass ratio;
(2) under normal temperature, ether of cellulose and treated starch ether is slowly added while stirring in water, stirring 0.5 ~ 1.0h is kept after reinforced, after leaving standstill 2 ~ 4h, add ethers poly carboxylic acid series water reducer, air entrapment agent and defoamer again, 0.5 ~ 1.0h is left standstill, i.e. obtained water-keeping thickening component after stirring 1.0 ~ 2.0h;
(3) under normal temperature, add ester class polycarboxylic acid slump retaining agent, suds-stabilizing agent and retardant in water, after leaving standstill 0.5 ~ 1.0h after stirring 1.0 ~ 2.0h, namely the obtained open hour regulate component;
(4) above-mentioned water-keeping thickening component and open hour are regulated component mix and blend 1.0 ~ 2.0h in mass ratio, then leave standstill 0.5 ~ 1.0h, be i.e. obtained wet mixing mortar water conservation softening agent.
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (8)
1. a wet mixing mortar water conservation softening agent, is characterized in that: comprise water-keeping thickening component and open hour adjustment component that mass ratio is 100:5 ~ 20,
Water-keeping thickening component is made up of the component of following weight part: 100 parts of water, 0.5 ~ 1.0 part of ether of cellulose, 0 ~ 0.5 part of treated starch ether, 0.5 ~ 1.0 part of ethers poly carboxylic acid series water reducer, 0.2 ~ 1.0 part of air entrapment agent and 0.05 ~ 0.1 part of defoamer, above-mentioned ethers poly carboxylic acid series water reducer is by vinylformic acid and the first polyether monomer, and this first polyether monomer is allyl alcohol polyethenoxy ether, isopentenol polyoxyethylene ether or methacrylic Soxylat A 25-7;
Open hour regulate component to be made up of the component of following weight part: 100 weight parts waters, 5.0 ~ 10 weight part ester class polycarboxylic acid slump retaining agents, 1.0 ~ 2.0 weight part suds-stabilizing agents and 10 ~ 20 weight part retardant, above-mentioned ester class polycarboxylic acid slump retaining agent is made up of vinylformic acid, methoxy poly (ethylene glycol) ether and the second polyether monomer, and this second polyether monomer is allyl alcohol polyethenoxy ether, isopentenol polyoxyethylene ether or methacrylic Soxylat A 25-7.
2. a kind of wet mixing mortar water conservation softening agent as claimed in claim 1, is characterized in that: described ether of cellulose is at least one of methyl cellulose ether, hydroxypropyl methyl cellulose ether, hydroxyethyl ether cellulose and TYLOSE 30000.
3. a kind of wet mixing mortar water conservation softening agent as claimed in claim 1, is characterized in that: described treated starch ether is at least one in hydroxypropyl starch ether, carboxymethyl starch ether and guar gum ether.
4. a kind of wet mixing mortar water conservation softening agent as claimed in claim 1, is characterized in that: described air entrapment agent is at least one in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate, polyoxyethylenated alcohol sodium sulfate, α-sodium olefin sulfonate and triterpenoid saponin air entrapment agent.
5. a kind of wet mixing mortar water conservation softening agent as claimed in claim 1, is characterized in that: described suds-stabilizing agent is at least one in dimethyl dodecyl amine oxide, lauric acid amide of ethanol, silicone amide and polyvinyl alcohol.
6. a kind of wet mixing mortar water conservation softening agent as claimed in claim 1, is characterized in that: described defoamer is at least one of polyoxypropylene ethylene oxide glyceryl ether polyoxyethylene polyoxypropylene tetramethylolmethane ether and polyoxyethylene polyoxy propyl alcohol amidogen ether.
7. a kind of wet mixing mortar water conservation softening agent as claimed in claim 1, is characterized in that: described retardant is at least one of sugared calcium, tartrate and Seignette salt.
8. a preparation method for the wet mixing mortar water conservation softening agent in claim 1 to 7 described in arbitrary claim, is characterized in that: comprise the steps:
(1) each component is taken than with corresponding weight part in mass ratio;
(2) under normal temperature, ether of cellulose and treated starch ether is slowly added while stirring in water, stirring 0.5 ~ 1.0h is kept after reinforced, after leaving standstill 2 ~ 4h, add ethers poly carboxylic acid series water reducer, air entrapment agent and defoamer again, 0.5 ~ 1.0h is left standstill, i.e. obtained water-keeping thickening component after stirring 1.0 ~ 2.0h;
(3) under normal temperature, add ester class polycarboxylic acid slump retaining agent, suds-stabilizing agent and retardant in water, after leaving standstill 0.5 ~ 1.0h after stirring 1.0 ~ 2.0h, namely the obtained open hour regulate component;
(4) above-mentioned water-keeping thickening component and open hour are regulated component mix and blend 1.0 ~ 2.0h in mass ratio, then leave standstill 0.5 ~ 1.0h, be i.e. obtained wet mixing mortar water conservation softening agent.
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