CN113955972A - Seventy-two-hour ultra-retarding polycarboxylic acid pumping aid and preparation method thereof - Google Patents
Seventy-two-hour ultra-retarding polycarboxylic acid pumping aid and preparation method thereof Download PDFInfo
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- CN113955972A CN113955972A CN202111493025.6A CN202111493025A CN113955972A CN 113955972 A CN113955972 A CN 113955972A CN 202111493025 A CN202111493025 A CN 202111493025A CN 113955972 A CN113955972 A CN 113955972A
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- polycarboxylic acid
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- 239000002253 acid Substances 0.000 title claims abstract description 54
- 238000005086 pumping Methods 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000012452 mother liquor Substances 0.000 claims abstract description 40
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 23
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims abstract description 22
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims abstract description 22
- 229930006000 Sucrose Natural products 0.000 claims abstract description 22
- 239000000176 sodium gluconate Substances 0.000 claims abstract description 22
- 235000012207 sodium gluconate Nutrition 0.000 claims abstract description 22
- 229940005574 sodium gluconate Drugs 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 18
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 17
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 17
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 17
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 59
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 150000008130 triterpenoid saponins Chemical class 0.000 claims description 3
- 235000013305 food Nutrition 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 34
- 238000010276 construction Methods 0.000 abstract description 13
- 230000000979 retarding effect Effects 0.000 abstract description 6
- 239000004568 cement Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920005646 polycarboxylate Polymers 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000008030 superplasticizer Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241001374849 Liparis atlanticus Species 0.000 description 1
- 229920001273 Polyhydroxy acid Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000006172 buffering agent Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a seventy-two-hour ultra-retarding polycarboxylic acid pumping aid and a preparation method thereof, and solves the technical problem that the initial setting time of a retarding high-performance pumping aid in the prior art is short and cannot meet the construction requirement of an occlusive pile. The pumping agent comprises the following raw materials in percentage by weight: 0.5 to 1.0 percent of sodium hexametaphosphate; 5.0 to 10.0 percent of sodium gluconate; 1.0 to 3.0 percent of white sugar; 0.05 to 0.1 percent of air entraining agent; 0.05 to 0.1 percent of hydroxyethyl methyl cellulose ether; 0.2 to 1.0 percent of water-retaining agent; 15-25% of polycarboxylic acid water reducing agent mother liquor; 5% -15% of polycarboxylic acid slump retaining agent mother liquor; the balance of water. The pumping agent can prolong the setting time of the concrete to more than 72h on the premise of ensuring the water reducing rate of the concrete, does not influence the later strength of the concrete, and meets the requirements of the construction process of the secant pile.
Description
Technical Field
The invention relates to the technical field of concrete admixtures, in particular to a seventy-two-hour ultra-retarding polycarboxylic acid pumping aid and a preparation method thereof.
Background
The secant pile is a foundation pit support structure which forms mutual secant arrangement between piles. The arrangement mode of the piles is that one pile is not provided with ribs and adopts an ultra-retarding element concrete pile (A pile) and a reinforced concrete pile (B pile) (constructed by a full casing drilling machine) to be arranged at intervals. During construction, the pile A is constructed firstly, the pile B is constructed secondly, and the construction of the pile B is completed after the concrete of the pile A is initially set and before final setting. The concrete is poured, and because the A pile must be cut in the construction of the B pile, the concrete of the A pile is damaged by the grinding and the downward cutting of the casing drill under the condition that the concrete of the A pile does not reach certain strength. Therefore, the construction scheme that the initial setting time of the pile A concrete is delayed and the pile B is constructed under the condition that the pile A concrete is in the last initial setting is adopted. Based on the special requirements in construction, the setting time of concrete is required to be prolonged to 72 hours, the later strength of the concrete cannot be influenced, and in order to meet the requirements of the construction process, the conventional retarding high-performance pumping aid cannot meet the requirements during the production of the ready-mixed concrete.
The applicant has found that the prior art has at least the following technical problems:
the initial setting time of the retarding high-performance pumping aid in the prior art is short, and the construction requirement of an occlusive pile cannot be met.
Disclosure of Invention
The invention aims to provide a seventy-two-hour ultra-retarding polycarboxylic acid pumping aid and a preparation method thereof, and aims to solve the technical problem that the construction requirement of an occlusive pile cannot be met due to short initial setting time of a retarding high-performance pumping aid in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a seventy-two-hour ultra-retarding polycarboxylic acid pumping aid which is prepared from the following raw materials in percentage by weight:
0.5 to 1.0 percent of sodium hexametaphosphate;
5.0 to 10.0 percent of sodium gluconate;
1.0 to 3.0 percent of white sugar;
0.05 to 0.1 percent of air entraining agent;
0.05 to 0.1 percent of hydroxyethyl methyl cellulose ether;
0.2 to 1.0 percent of water-retaining agent;
15-25% of polycarboxylic acid water reducing agent mother liquor;
5% -15% of polycarboxylic acid slump retaining agent mother liquor;
the balance of water.
Further, the weight percentages of the raw materials are respectively as follows:
0.6 to 0.9 percent of sodium hexametaphosphate;
6.0 to 9.0 percent of sodium gluconate;
1.5 to 2.5 percent of white sugar;
0.06 percent to 0.09 percent of air entraining agent;
0.06 to 0.09 percent of hydroxyethyl methyl cellulose ether; 0.4 to 0.8 percent of water-retaining agent;
18-22% of polycarboxylic acid water reducing agent mother liquor;
8% -12% of polycarboxylic acid slump retaining agent mother liquor;
the balance of water.
Further, the weight percentages of the raw materials are respectively as follows:
0.8 percent of sodium hexametaphosphate;
8.0 percent of sodium gluconate;
2.0% of white sugar;
0.08 percent of air entraining agent;
hydroxyethyl methyl cellulose ether 0.08%;
0.6 percent of water-retaining agent;
20% of polycarboxylic acid water reducing agent mother liquor;
10% of polycarboxylic acid slump retaining agent mother liquor;
the balance of water.
Further, the air entraining agent is any one or more of triterpenoid saponin, AOS and AES.
Further, the sodium gluconate is industrial-grade sodium gluconate.
Further, the white sugar is food grade white sugar.
The preparation method of the seventy-two-hour ultra-retarding polycarboxylic acid pumping aid provided by the invention comprises the following steps:
s1, weighing sodium hexametaphosphate, sodium gluconate, white sugar, an air entraining agent, hydroxyethyl methyl cellulose ether, a water retaining agent, a polycarboxylic acid water reducing agent mother liquor, a polycarboxylic acid slump retaining agent mother liquor and water according to the proportion;
s2, adding water into the reaction container;
s3, starting stirring and keeping the stirring state, and adding sodium hexametaphosphate, sodium gluconate and white sugar into the reaction container; then stirring for more than 10 min;
s4, keeping the stirring state, adding an air entraining agent into the reaction container, and then stirring for more than 10 min;
s5, keeping the stirring state, adding the polycarboxylic acid water reducing agent mother liquor and the polycarboxylic acid slump retaining agent mother liquor into the reaction container, and stirring for more than 10 min;
and S6, keeping the stirring state, adding the water-retaining agent and the hydroxyethyl cellulose ether into the reaction vessel, and stirring for more than 10min to obtain the pumping aid finished product.
Further, in the steps S3, S4, S5 and S6, the stirring speed is 800-.
Based on the technical scheme, the embodiment of the invention can at least produce the following technical effects:
according to the seventy-two-hour ultra-retarding polycarboxylic acid pumping aid and the preparation method thereof, when the pumping aid is applied, the final setting time of concrete is at least 72 hours, and the strength of 100 hours meets the design requirement; the strength reaches the design requirement in 28 days; on the premise of ensuring the water reducing rate of the concrete, the setting time of the concrete is prolonged to more than 72h, the later strength of the concrete is not influenced, and the requirements of the construction process of the occlusive pile can be met; specifically, the method comprises the following steps:
(1) the industrial-grade sodium gluconate is used as a retarder, is a sodium polyhydroxy acid, is easy to dissolve in water and can adjust thickening time; the cement slurry has the functions of forming a protective film on the surface of cement particles, inhibiting cement hydration reaction, generating a retarding effect, reducing the loss of concrete slump over time and also adjusting the adaptability of cement and a pumping agent. Proper retarder is added into the polycarboxylic acid pumping aid, so that the slump retaining performance of the concrete is better enhanced.
(2) The white sugar product execution standard used in the invention is GB 8076-2008; the main indexes are as follows: the water reducing rate is more than or equal to 25 percent; the difference between the coagulation times is > +90 min; the gas content is less than 5.5 percent; the insoluble matter is less than or equal to 4 percent. Besides the functions of retarding coagulation and reducing water, the concrete can also play a role in saving the cement consumption and increasing the concrete strength.
(3) The air entraining agent used in the invention is AOS, AES and triterpenoid saponin, and the air entraining agent is doped to form a large amount of micro closed bubbles in the concrete mixture, and the micro bubbles are like balls to reduce the frictional resistance of aggregate particles, so that the fluidity of the concrete mixture is increased, the bleeding segregation is reduced, and the breaking strength can be improved. The pumping pressure can be reduced, and the pumping is facilitated. The concrete expansion buffering agent can play a role in buffering in the concrete hardening process, reduces the damage caused by various types of expansion of concrete, and has no influence on the concrete strength. And has good adaptability and adsorption resistance to the concrete blended with the fly ash at present.
(4) The hydroxyethyl methyl cellulose ether and the water-retaining agent used in the invention can reduce the free water loss of concrete when applied to the concrete, improve the workability and water-retaining property of the concrete and improve the working performance of the concrete.
(5) The structures of the polycarboxylic acid water reducing agent mother liquor and the polycarboxylic acid slump retaining agent mother liquor used in the invention have hydrophilic polyether side chains, and the polyether side chains stretch in an aqueous solution, so that a hydrophilic three-dimensional adsorption layer with a certain thickness is formed on the surface of adsorbed cement particles; when the cement particles are close to each other, the adsorption layers begin to overlap, namely, steric hindrance is generated among the cement particles, the more the overlap is, the larger the steric hindrance repulsive force is, the larger the obstruction to the coagulation among the cement particles is, and the slump of the concrete is kept good.
Detailed Description
First, preparation example
1. Raw materials
The adopted polycarboxylate superplasticizer mother liquor and polycarboxylate slump retaining agent mother liquor are products which are publicly sold by Meishan sea snail new material science and technology limited company, the polycarboxylate superplasticizer mother liquor is MH250, and the polycarboxylate slump retaining agent mother liquor is MT 340.
The compositions in weight percent of the raw materials in examples 1-6 are shown in table 1 below:
table 1 examples raw material table
2. The preparation method comprises the following steps:
example 1:
the method comprises the following steps:
s1, weighing sodium hexametaphosphate, sodium gluconate, white sugar, an air entraining agent, hydroxyethyl methyl cellulose ether, a water retaining agent, a polycarboxylic acid water reducing agent mother liquor, a polycarboxylic acid slump retaining agent mother liquor and water according to the proportion;
s2, adding water into the reaction container;
s3, starting stirring, keeping the stirring state (the stirring speed is 1000r/min), and adding sodium hexametaphosphate, sodium gluconate and white sugar into the reaction container; then stirring for 15 min;
s4, keeping the stirring state (the stirring speed is 1000r/min), adding an air entraining agent into the reaction container, and then stirring for 15 min;
s5, keeping the stirring state (the stirring speed is 1000r/min), adding the polycarboxylic acid water reducing agent mother liquor and the polycarboxylic acid slump retaining agent mother liquor into the reaction container, and stirring for 15 min;
and S6, keeping the stirring state (the stirring speed is 1000r/min), adding the water-retaining agent and the hydroxyethyl cellulose ether into the reaction vessel, and stirring for 15min to obtain the finished pumping agent.
Example 2:
the method comprises the following steps:
s1, weighing sodium hexametaphosphate, sodium gluconate, white sugar, an air entraining agent, hydroxyethyl methyl cellulose ether, a water retaining agent, a polycarboxylic acid water reducing agent mother liquor, a polycarboxylic acid slump retaining agent mother liquor and water according to the proportion;
s2, adding water into the reaction container;
s3, starting stirring, keeping the stirring state (the stirring speed is 1200r/min), and adding sodium hexametaphosphate, sodium gluconate and white sugar into the reaction container; then stirring for 10 min;
s4, keeping the stirring state (the stirring speed is 1200r/min), adding an air entraining agent into the reaction container, and then stirring for 10 min;
s5, keeping the stirring state (the stirring speed is 1200r/min), adding the polycarboxylic acid water reducing agent mother liquor and the polycarboxylic acid slump retaining agent mother liquor into the reaction container, and stirring for 10 min;
and S6, keeping the stirring state (the stirring speed is 1200r/min), adding the water-retaining agent and the hydroxyethyl cellulose ether into the reaction vessel, and stirring for 10min to obtain the finished pumping agent.
Example 3:
the method comprises the following steps:
s1, weighing sodium hexametaphosphate, sodium gluconate, white sugar, an air entraining agent, hydroxyethyl methyl cellulose ether, a water retaining agent, a polycarboxylic acid water reducing agent mother liquor, a polycarboxylic acid slump retaining agent mother liquor and water according to the proportion;
s2, adding water into the reaction container;
s3, starting stirring, keeping the stirring state (the stirring speed is 800r/min), and adding sodium hexametaphosphate, sodium gluconate and white sugar into the reaction container; then stirring for 20 min;
s4, keeping the stirring state (the stirring speed is 800r/min), adding an air entraining agent into the reaction container, and then stirring for 20 min;
s5, keeping the stirring state (the stirring speed is 800r/min), adding the polycarboxylic acid water reducing agent mother liquor and the polycarboxylic acid slump retaining agent mother liquor into the reaction container, and stirring for 20 min;
and S6, keeping the stirring state (the stirring speed is 800r/min), adding the water-retaining agent and the hydroxyethyl cellulose ether into the reaction vessel, and stirring for 20min to obtain the finished pumping agent.
Example 4-example 6:
the preparation method is the same as example 1.
Second, comparative example
Comparative example 1: the HPWR-R01 pumping agent manufactured by Zhongxing Nanyou building materials Co., Ltd.
Third, Experimental example
The pumping agents prepared in examples 1-6 are added into cement to verify the performance, and meanwhile, the addition amount of the pumping agents is 2.0 percent of the mass of the cement by taking comparative example 1 as comparison; the test is carried out according to the test standard GB/T8076-2008, and the results are shown in the following table 2:
table 2 comparison of properties
As can be seen from Table 2, the polycarboxylic acid pumping aid prepared in the embodiments 1-6 of the invention has the retardation time of more than or equal to 4320min, meets the technical index requirements, has the strength of 28 days, and meets the construction requirements of the occlusive piles; the pumping aid in the comparative example 1 has qualified strength in 28 days, but the delayed coagulation time cannot meet the construction requirement of the occlusive pile.
Claims (8)
1. The seventy-two-hour ultra-retarding polycarboxylic acid pumping aid is characterized by being prepared from the following raw materials in percentage by weight:
0.5 to 1.0 percent of sodium hexametaphosphate;
5.0 to 10.0 percent of sodium gluconate;
1.0 to 3.0 percent of white sugar;
0.05 to 0.1 percent of air entraining agent;
0.05 to 0.1 percent of hydroxyethyl methyl cellulose ether;
0.2 to 1.0 percent of water-retaining agent;
15-25% of polycarboxylic acid water reducing agent mother liquor;
5% -15% of polycarboxylic acid slump retaining agent mother liquor;
the balance of water.
2. The seventy-two hour ultra-retarding polycarboxylic acid pumping aid of claim 1, wherein the weight percentages of the raw materials are respectively as follows:
0.6 to 0.9 percent of sodium hexametaphosphate;
6.0 to 9.0 percent of sodium gluconate;
1.5 to 2.5 percent of white sugar;
0.06 percent to 0.09 percent of air entraining agent;
0.06 to 0.09 percent of hydroxyethyl methyl cellulose ether;
0.4 to 0.8 percent of water-retaining agent;
18-22% of polycarboxylic acid water reducing agent mother liquor;
8% -12% of polycarboxylic acid slump retaining agent mother liquor;
the balance of water.
3. The seventy-two hour ultra-retarding polycarboxylic acid pumping aid of claim 1, wherein the weight percentages of the raw materials are respectively as follows:
0.8 percent of sodium hexametaphosphate;
8.0 percent of sodium gluconate;
2.0% of white sugar;
0.08 percent of air entraining agent;
hydroxyethyl methyl cellulose ether 0.08%;
0.6 percent of water-retaining agent;
20% of polycarboxylic acid water reducing agent mother liquor;
10% of polycarboxylic acid slump retaining agent mother liquor;
the balance of water.
4. The seventy-two hour ultra-retarding polycarboxylic acid pumping aid according to claim 1, wherein the air entraining agent is any one or more of triterpenoid saponin, AOS and AES.
5. The seventy-two hour ultra-retarding polycarboxylic acid-based pumping aid of claim 1, wherein the sodium gluconate is industrial-grade sodium gluconate.
6. The seventy-two hour ultra-delayed polycarboxylic acid pumping aid of claim 1, wherein the white sugar is food grade white sugar.
7. The method of preparing the seventy-two hour ultra-delayed polycarboxylic acid pumping aid of any one of claims 1-6, comprising the steps of:
s1, weighing sodium hexametaphosphate, sodium gluconate, white sugar, an air entraining agent, hydroxyethyl methyl cellulose ether, a water retaining agent, a polycarboxylic acid water reducing agent mother liquor, a polycarboxylic acid slump retaining agent mother liquor and water according to the proportion;
s2, adding water into the reaction container;
s3, starting stirring and keeping the stirring state, and adding sodium hexametaphosphate, sodium gluconate and white sugar into the reaction container; then stirring for more than 10 min;
s4, keeping the stirring state, adding an air entraining agent into the reaction container, and then stirring for more than 10 min;
s5, keeping the stirring state, adding the polycarboxylic acid water reducing agent mother liquor and the polycarboxylic acid slump retaining agent mother liquor into the reaction container, and stirring for more than 10 min;
and S6, keeping the stirring state, adding the water-retaining agent and the hydroxyethyl cellulose ether into the reaction vessel, and stirring for more than 10min to obtain the pumping aid finished product.
8. The method for preparing the seventy-two hour ultra-retarding polycarboxylic acid pumping aid as claimed in claim 7, wherein the stirring rotation speeds in the steps S3, S4, S5 and S6 are all 800-1200 r/min.
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| CN202111493025.6A CN113955972A (en) | 2021-12-08 | 2021-12-08 | Seventy-two-hour ultra-retarding polycarboxylic acid pumping aid and preparation method thereof |
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| CN202111493025.6A CN113955972A (en) | 2021-12-08 | 2021-12-08 | Seventy-two-hour ultra-retarding polycarboxylic acid pumping aid and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086635A (en) * | 2013-02-25 | 2013-05-08 | 十九冶成都建设有限公司 | Pumping agent and application thereof |
| US20130233550A1 (en) * | 2012-03-09 | 2013-09-12 | Halliburton Energy Services, Inc. | Set-Delayed Cement Compositions Comprising Pumice and Associated Methods |
| CN108285288A (en) * | 2018-01-26 | 2018-07-17 | 淮南市晋淮建化科技有限公司 | A kind of super-slowly coagulating water reducer being used for hole-drilling interlocking pile and construction at high temperature environment |
| CN109231872A (en) * | 2018-09-25 | 2019-01-18 | 成都宏基建材股份有限公司 | A kind of early strong concrete pumping admixture of high water reduction high-thin arch dam |
| CN111960718A (en) * | 2020-07-22 | 2020-11-20 | 浙江五龙新材股份有限公司 | Super-retarding efficient pumping aid and application thereof |
| CN111978004A (en) * | 2020-07-09 | 2020-11-24 | 浙江五龙新材股份有限公司 | Polycarboxylic acid type efficient pumping agent and application thereof |
| CN113651552A (en) * | 2021-09-17 | 2021-11-16 | 南京福盛新材料有限公司 | Polycarboxylic acid high-performance pumping agent and production process and preparation device thereof |
-
2021
- 2021-12-08 CN CN202111493025.6A patent/CN113955972A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130233550A1 (en) * | 2012-03-09 | 2013-09-12 | Halliburton Energy Services, Inc. | Set-Delayed Cement Compositions Comprising Pumice and Associated Methods |
| CN103086635A (en) * | 2013-02-25 | 2013-05-08 | 十九冶成都建设有限公司 | Pumping agent and application thereof |
| CN108285288A (en) * | 2018-01-26 | 2018-07-17 | 淮南市晋淮建化科技有限公司 | A kind of super-slowly coagulating water reducer being used for hole-drilling interlocking pile and construction at high temperature environment |
| CN109231872A (en) * | 2018-09-25 | 2019-01-18 | 成都宏基建材股份有限公司 | A kind of early strong concrete pumping admixture of high water reduction high-thin arch dam |
| CN111978004A (en) * | 2020-07-09 | 2020-11-24 | 浙江五龙新材股份有限公司 | Polycarboxylic acid type efficient pumping agent and application thereof |
| CN111960718A (en) * | 2020-07-22 | 2020-11-20 | 浙江五龙新材股份有限公司 | Super-retarding efficient pumping aid and application thereof |
| CN113651552A (en) * | 2021-09-17 | 2021-11-16 | 南京福盛新材料有限公司 | Polycarboxylic acid high-performance pumping agent and production process and preparation device thereof |
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