CN111847966A - Inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent, and preparation method and application thereof - Google Patents
Inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent, and preparation method and application thereof Download PDFInfo
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- CN111847966A CN111847966A CN202010520321.XA CN202010520321A CN111847966A CN 111847966 A CN111847966 A CN 111847966A CN 202010520321 A CN202010520321 A CN 202010520321A CN 111847966 A CN111847966 A CN 111847966A
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- 239000004567 concrete Substances 0.000 title claims abstract description 45
- 239000012744 reinforcing agent Substances 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims abstract description 136
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000000203 mixture Substances 0.000 claims abstract description 81
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229960002089 ferrous chloride Drugs 0.000 claims abstract description 50
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims abstract description 50
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 48
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 48
- 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 35
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004202 carbamide Substances 0.000 claims abstract description 35
- 239000000176 sodium gluconate Substances 0.000 claims abstract description 35
- 229940005574 sodium gluconate Drugs 0.000 claims abstract description 35
- 235000012207 sodium gluconate Nutrition 0.000 claims abstract description 35
- ISNKSXRJJVWFIL-UHFFFAOYSA-N (sulfonylamino)amine Chemical compound NN=S(=O)=O ISNKSXRJJVWFIL-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910001868 water Inorganic materials 0.000 claims abstract description 21
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 19
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 19
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 19
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000001110 calcium chloride Substances 0.000 claims abstract description 18
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims description 48
- 239000000243 solution Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- -1 sulfonyl hydrazine compound Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 11
- 239000004568 cement Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 6
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002002 slurry Substances 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
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
Abstract
The invention discloses an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent, which is prepared from the following raw materials in parts by weight: 540 parts of water 500-containing material, 40-60 parts of calcium nitrate, 8-12 parts of calcium nitrite, 15-25 parts of ferrous chloride, 15-25 parts of sodium nitrate, 3-5 parts of sulfonyl-hydrazine mixture, 4-8 parts of beta-sodium naphthalene sulfonate formaldehyde mixture, 8-12 parts of urea, 8-12 parts of sodium gluconate, 400 parts of calcium chloride 300-containing material and 1-3 parts of calcium hydroxide. The invention relates to a composite multifunctional permeable concrete reinforcing agent which has the performances of inorganic environmental protection, high strength and quick setting, good adaptability with cementing materials such as cement and the like, low-temperature construction and the like, and a preparation method and application thereof.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent, and a preparation method and application thereof.
Background
The construction concept of the permeable road has entered China since the last 80 years. However, due to insufficient materials, inadvisable people, backward construction equipment and improper construction technology and maintenance, the construction of the permeable road is difficult and serious, and the permeable road is not popularized all the time.
Since 2012, the country has vigorously advocated sponge city construction, of which water-permeable road engineering is an important part of sponge city construction. At present, the construction of permeable roads enters a high-speed development stage, a large amount of permeable concrete raw materials are required to be consumed for the construction of the permeable roads, and in the construction of the existing permeable roads, the existing permeable concrete is prepared and constructed by adopting a traditional method, so that the problems that the strength of the concrete is not high, the water permeability and water storage capacity are not enough, the weather resistance can not meet the requirements, or the materials are aged due to the adoption of organic materials are often caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a composite multifunctional permeable concrete reinforcing agent which has the performances of inorganic environmental protection, high strength and quick setting, good adaptability with cementing materials such as cement and the like, low-temperature construction and the like, and a preparation method and application thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
An inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent comprises raw materials of calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl-hydrazine mixture, a beta-sodium naphthalene sulfonate-formaldehyde mixture, urea, sodium gluconate, calcium chloride, calcium hydroxide and water;
the raw materials comprise the following components in parts by weight: 540 parts of water, 40-60 parts of calcium nitrate, 8-12 parts of calcium nitrite, 15-25 parts of ferrous chloride, 15-25 parts of sodium nitrate, 3-5 parts of sulfonyl-hydrazine mixture, 4-8 parts of beta-sodium naphthalene sulfonate formaldehyde mixture, 8-12 parts of urea, 8-12 parts of sodium gluconate, 400 parts of calcium chloride and 1-3 parts of calcium hydroxide.
Preferably, the raw materials comprise the following components in parts by weight: 518 parts of water, 50 parts of calcium nitrate, 10 parts of calcium nitrite, 20 parts of ferrous chloride, 20 parts of sodium nitrate, 4 parts of a sulfonyl hydrazine mixture, 6 parts of a beta-sodium naphthalene sulfonate formaldehyde mixture, 10 parts of urea, 10 parts of sodium gluconate, 350 parts of calcium chloride and 2 parts of calcium hydroxide.
Preferably, the calcium nitrate, the calcium nitrite, the ferrous chloride, the sodium nitrate, the sulfonyl hydrazine mixture, the beta-sodium naphthalene sulfonate formaldehyde mixture, the urea, the sodium gluconate, the calcium chloride and the calcium hydroxide are all industrially pure, the content of effective components is not lower than 90 percent, and no harmful impurities are contained; the water is potable tap water.
A preparation method of an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent comprises the following steps:
(1) adding weighed water into a reaction kettle;
(2) sequentially adding weighed calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl hydrazine mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, urea and sodium gluconate in sequence under the stirring state; the method specifically comprises the following steps:
the first step is as follows: slowly adding calcium nitrate granules to fully dissolve the calcium nitrate granules, controlling the adding time to be 1-3h, and controlling the temperature to be 20-30 ℃ while adding;
the second step is that: adding calcium nitrite particles, fully reacting with calcium nitrate solution, wherein the adding time is controlled to be 0.5-1h, and the temperature is controlled to be 35-40 ℃ while adding;
the third step: adding ferrous chloride particles, and fully reacting with the mixed solution of calcium nitrate and calcium nitrite, wherein the adding time is controlled to be 0.5-1.5h, and the temperature is controlled to be 35-40 ℃;
the fourth step: then adding sodium nitrate particles, and fully reacting with calcium nitrate, calcium nitrite and ferrous chloride solution, wherein the adding time is controlled to be 1-1.5h, and the temperature is controlled to be 15-25 ℃;
the fifth step: simultaneously adding a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture, and fully reacting the mixture with a calcium nitrate solution, a calcium nitrite solution, a ferrous chloride solution and a sodium nitrate solution for 0.5 to 1 hour at a temperature of between 15 and 25 ℃;
And a sixth step: then adding urea and sodium gluconate simultaneously, and making them fully react with calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, sulfonyl hydrazine mixture and beta-sodium naphthalene sulfonate formaldehyde mixture solution, controlling time at 0.5-1.5h and temperature at 25-35 deg.C;
(3) slowly adding calcium chloride particles after the above steps are completed, wherein the adding time is controlled to be 5-11h, and the temperature is controlled to be 60-80 ℃ while adding, so that other raw materials can fully react to reach an optimal state;
(4) adding calcium hydroxide, stirring for 12-24 hr to naturally cool the solution to 20-30 deg.C, packaging, and storing.
The inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent can be used for permeable pavement concrete, permeable pavement concrete prefabricated bricks, new and old concrete reinforcing interface agents and the like.
Compared with the prior art, the invention has the advantages that: the inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent can effectively reduce the freezing point of a concrete mixture, effectively reduce the surface tension of water in cement slurry, highly disperse cement particles, generate a secondary chemical reaction with a cement hydration product calcium hydroxide, promote the cement gel wrapped around a coarse aggregate to continuously grow, crystallize and harden, quickly enhance the strength of calcium silicate hydrate gel in permeable concrete, and increase the compression resistance, the folding resistance and the wear resistance coefficient of the permeable concrete by about 30 percent.
Detailed Description
The invention will be further illustrated with reference to specific examples. The scope of protection of the invention is not limited to the examples described below. Any equivalent modifications made by those skilled in the art in the light of the teachings of this invention should be within the scope of this invention.
Examples 1 to 4: a preparation method of an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent comprises the following steps:
(1) preparing raw materials according to the raw material proportion in the table 1;
(2) adding water into a reaction kettle made of a special anticorrosive material;
(3) respectively adding weighed calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl callus mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, urea and sodium gluconate in sequence; the method specifically comprises the following steps:
the first step is as follows: slowly adding calcium nitrate particles to fully dissolve the calcium nitrate particles, controlling the adding time to be 2 hours, and controlling the temperature to be 25 ℃ while adding;
the second step is that: adding calcium nitrite particles, and enabling the calcium nitrite particles to fully react with the calcium nitrate solution, wherein the adding time is controlled to be 45min, and the temperature is controlled to be 38 ℃ while adding;
the third step: then adding ferrous chloride particles to fully react with the mixed solution of calcium nitrate and calcium nitrite, wherein the adding time is controlled to be 1h, and the temperature is controlled to be 38 ℃;
The fourth step: adding sodium nitrate particles, and allowing the sodium nitrate particles to react with calcium nitrate, calcium nitrite and ferrous chloride solution sufficiently, wherein the adding time is controlled at 75min, and the temperature is controlled at 20 ℃;
the fifth step: simultaneously adding a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture, and fully reacting the mixture with calcium nitrate, calcium nitrite, ferrous chloride and a sodium nitrate solution for 45min at a temperature of 20 ℃;
and a sixth step: then, adding urea and sodium gluconate simultaneously, and fully reacting the urea and the sodium gluconate with calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture solution for 1h at the temperature of 30 ℃;
(4) slowly adding calcium chloride after the above steps are completed, controlling the adding time to be 8h, and controlling the temperature to be 70 ℃ while adding, so that other raw materials can fully react to reach the optimal state;
(5) adding calcium hydroxide, continuously stirring for 18 hours, naturally cooling the solution to 25 ℃, and then packaging into a warehouse to obtain the inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent.
Table 1: EXAMPLES 1-4 raw Material proportioning (Kg)
Calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, sulfonyl hydrazine mixture, beta-sodium naphthalene sulfonate formaldehyde mixture, urea, sodium gluconate, calcium chloride and calcium hydroxide described in table 1 should all be industrially pure, have an effective component content of not less than 90% and contain no harmful impurities; the water is ordinary tap water.
Example 5: a preparation method of an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent comprises the following steps:
(1) preparing raw materials according to the raw material ratio of example 1 in table 1;
(2) adding water into a reaction kettle made of a special anticorrosive material;
(3) respectively adding weighed calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl callus mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, urea and sodium gluconate in sequence; the method specifically comprises the following steps:
the first step is as follows: slowly adding calcium nitrate particles to fully dissolve the calcium nitrate particles, controlling the adding time to be 1h, and controlling the temperature to be 25 ℃ while adding;
the second step is that: adding calcium nitrite particles, fully reacting with the calcium nitrate solution, wherein the adding time is controlled to be 0.5h, and the temperature is controlled to be 38 ℃ while adding;
the third step: then adding ferrous chloride particles to fully react with the mixed solution of calcium nitrate and calcium nitrite, wherein the adding time is controlled to be 0.5h, and the temperature is controlled to be 38 ℃;
the fourth step: then adding sodium nitrate particles, and fully reacting the sodium nitrate particles with calcium nitrate, calcium nitrite and ferrous chloride solution, wherein the adding time is controlled to be 1h, and the temperature is controlled to be 20 ℃;
the fifth step: simultaneously adding a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture, and fully reacting the mixture with calcium nitrate, calcium nitrite, ferrous chloride and a sodium nitrate solution for 0.5h at a temperature of 20 ℃;
And a sixth step: then adding urea and sodium gluconate simultaneously, and fully reacting with calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, sulfonyl hydrazine mixture and beta-sodium naphthalene sulfonate formaldehyde mixture solution, wherein the time is controlled at 0.5h and the temperature is controlled at 30 ℃;
(4) slowly adding calcium chloride particles after the above steps are completed, wherein the adding time is controlled to be 5 hours, and the temperature is controlled to be 70 ℃ while adding, so that other raw materials can fully react to reach an optimal state;
(5) adding calcium hydroxide, continuously stirring for 12h, naturally cooling the solution to 20-30 ℃, and then packaging into a warehouse to obtain the inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent.
Example 6: a preparation method of an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent comprises the following steps:
(1) preparing raw materials according to the raw material proportion of example 1 in table 1;
(2) adding water into a reaction kettle made of a special anticorrosive material;
(3) respectively adding weighed calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl callus mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, urea and sodium gluconate in sequence; the method specifically comprises the following steps:
the first step is as follows: slowly adding calcium nitrate particles to fully dissolve the calcium nitrate particles, controlling the adding time to be 3 hours, and controlling the temperature to be 25 ℃ while adding;
The second step is that: adding calcium nitrite particles, fully reacting with the calcium nitrate solution, wherein the adding time is controlled to be 1h, and the temperature is controlled to be 38 ℃ while adding;
the third step: then adding ferrous chloride particles to fully react with the mixed solution of calcium nitrate and calcium nitrite, wherein the adding time is controlled to be 1.5h, and the temperature is controlled to be 38 ℃;
the fourth step: then adding sodium nitrate particles, and fully reacting the sodium nitrate particles with calcium nitrate, calcium nitrite and ferrous chloride solution, wherein the adding time is controlled to be 1.5h, and the temperature is controlled to be 20 ℃;
the fifth step: simultaneously adding a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture, and fully reacting the mixture with a calcium nitrate solution, a calcium nitrite solution, a ferrous chloride solution and a sodium nitrate solution for 1 hour at a temperature of 20 ℃;
and a sixth step: then, adding urea and sodium gluconate simultaneously, and fully reacting the urea and the sodium gluconate with calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl hydrazine mixture and a beta-sodium naphthalenesulfonate formaldehyde mixture solution for 1.5h at the temperature of 30 ℃;
(4) slowly adding calcium chloride particles after the above steps are completed, wherein the adding time is controlled to be 11h, and the temperature is controlled to be 70 ℃ while adding, so that other raw materials can fully react to reach an optimal state;
(5) Adding calcium hydroxide, stirring for 24 hr to naturally cool the solution to 25 deg.C, packaging and storing.
Example 7: a preparation method of an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent comprises the following steps:
(1) preparing raw materials according to the raw material proportion of example 1 in table 1;
(2) adding water into a reaction kettle made of a special anticorrosive material;
(3) respectively adding weighed sodium gluconate, urea, a beta-sodium naphthalene sulfonate formaldehyde mixture, a sulfonyl-hydrazine mixture, sodium nitrate, ferrous chloride, calcium nitrite and calcium nitrate in sequence; the method specifically comprises the following steps:
the first step is as follows: adding sodium gluconate and urea, and dissolving completely, wherein the adding time is controlled at 1h, and the temperature is controlled at 30 ℃;
the second step is that: simultaneously adding sulfonyl hydrazine compound mixture and beta-sodium naphthalene sulfonate formaldehyde mixture, and allowing them to fully react with sodium gluconate and urea solution for 45min at 20 deg.C;
the third step: adding sodium nitrate granules, and allowing them to react with sodium gluconate, urea, sulfonyl hydrazine mixture, and beta-sodium naphthalenesulfonate formaldehyde mixture solution for 75min at 20 deg.C;
The fourth step: adding ferrous chloride granules, and allowing the ferrous chloride granules to fully react with sodium gluconate, urea, a sulfonyl hydrazine mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture and a sodium nitrate mixed solution, wherein the adding time is controlled to be 1h, and the temperature is controlled to be 38 ℃;
the fifth step: adding calcium nitrite particles, and allowing the calcium nitrite particles to fully react with sodium gluconate, urea, a sulfonyl hydrazine mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, sodium nitrate and a ferrous chloride solution, wherein the adding time is controlled to be 45min, and the adding temperature is controlled to be 38 ℃;
and a sixth step: slowly adding calcium nitrate granules to fully react with a mixed solution of sodium gluconate, urea, a sulfonyl callus mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, sodium nitrate, ferrous chloride and calcium nitrite, wherein the adding time is controlled to be 2 hours, and the temperature is controlled to be 25 ℃ while adding;
(4) slowly adding calcium chloride after the above steps are completed, controlling the adding time to be 8h, and controlling the temperature to be 70 ℃ while adding, so that other raw materials can fully react to reach the optimal state;
(5) adding calcium hydroxide, continuously stirring for 18 hours, naturally cooling the solution to 25 ℃, and then packaging into a warehouse to obtain the inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent.
Example 8: a preparation method of an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent comprises the following steps:
(1) preparing raw materials according to the raw material ratio of example 1 in table 1;
(2) adding water into a reaction kettle made of a special anticorrosive material;
(3) respectively adding weighed calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl callus mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, urea and sodium gluconate in sequence; the method specifically comprises the following steps: the method specifically comprises the following steps:
the first step is as follows: slowly adding calcium nitrate particles to fully dissolve the calcium nitrate particles, controlling the adding time to be 2 hours, and controlling the temperature to be 20 ℃ while adding;
the second step is that: adding calcium nitrite particles, and enabling the calcium nitrite particles to fully react with the calcium nitrate solution, wherein the adding time is controlled to be 45min, and the temperature is controlled to be 35 ℃ while adding;
the third step: then adding ferrous chloride particles to fully react with the mixed solution of calcium nitrate and calcium nitrite, wherein the adding time is controlled to be 1h, and the temperature is controlled to be 35 ℃;
the fourth step: adding sodium nitrate particles, and allowing the sodium nitrate particles to react with calcium nitrate, calcium nitrite and ferrous chloride solution sufficiently, wherein the adding time is controlled at 75min, and the temperature is controlled at 15 ℃;
The fifth step: simultaneously adding a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture, and fully reacting the mixture with calcium nitrate, calcium nitrite, ferrous chloride and a sodium nitrate solution for 45min at a temperature of 15 ℃;
and a sixth step: then, adding urea and sodium gluconate simultaneously, and fully reacting the urea and the sodium gluconate with calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture solution for 1h at the temperature of 25 ℃;
(4) slowly adding calcium chloride particles after the above steps are completed, wherein the adding time is controlled to be 8 hours, and the temperature is controlled to be 60 ℃ while adding, so that other raw materials can fully react to reach an optimal state;
(5) adding calcium hydroxide, stirring for 18h, naturally cooling the solution to 20 deg.C, packaging and storing.
Example 9: a preparation method of an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent comprises the following steps:
(1) preparing raw materials according to the raw material ratio of example 1 in table 1;
(2) adding water into a reaction kettle made of a special anticorrosive material;
(3) respectively adding weighed calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl callus mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, urea and sodium gluconate in sequence; the method specifically comprises the following steps: the method specifically comprises the following steps:
The first step is as follows: slowly adding calcium nitrate particles to fully dissolve the calcium nitrate particles, controlling the adding time to be 2 hours, and controlling the temperature to be 30 ℃ while adding;
the second step is that: adding calcium nitrite particles, and enabling the calcium nitrite particles to fully react with the calcium nitrate solution, wherein the adding time is controlled to be 45min, and the temperature is controlled to be 40 ℃ while adding;
the third step: then adding ferrous chloride particles to fully react with the mixed solution of calcium nitrate and calcium nitrite, wherein the adding time is controlled to be 1h, and the temperature is controlled to be 40 ℃;
the fourth step: adding sodium nitrate particles, and allowing the sodium nitrate particles to react with calcium nitrate, calcium nitrite and ferrous chloride solution sufficiently, wherein the adding time is controlled at 75min, and the temperature is controlled at 25 ℃;
the fifth step: simultaneously adding a sulfonyl-hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture, and fully reacting the mixture with calcium nitrate, calcium nitrite, ferrous chloride and a sodium nitrate solution for 45min at a temperature of 25 ℃;
and a sixth step: then, adding urea and sodium gluconate simultaneously, and fully reacting the urea and the sodium gluconate with calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture solution for 1 hour at the temperature of 35 ℃;
(4) Slowly adding calcium chloride particles after the above steps are completed, wherein the adding time is controlled to be 8 hours, and the temperature is controlled to be 80 ℃ while adding, so that other raw materials can fully react to reach the optimal state;
(5) adding calcium hydroxide, stirring for 18h, naturally cooling the solution to 30 deg.C, packaging and storing.
The inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent obtained in the above examples 1 to 9 is preferably applied to permeable pavement concrete, permeable pavement concrete prefabricated bricks, new and old concrete reinforcing interface agents and the like.
The results of the comparative performance test of the inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent obtained in the above examples 1 to 9 before and after adding to C30 common concrete are shown in Table 2.
Table 2: comparison of properties before and after adding reinforcing agent into C30 common concrete (Kg/m)3)
In table 2, example 1 is an inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent obtained in example 1.
Claims (6)
1. An inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent is characterized in that: the raw materials comprise calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, sulfonyl hydrazine mixture, beta-sodium naphthalene sulfonate formaldehyde mixture, urea, sodium gluconate, calcium chloride, calcium hydroxide and water;
The raw materials comprise the following components in parts by weight: 540 parts of water, 40-60 parts of calcium nitrate, 8-12 parts of calcium nitrite, 15-25 parts of ferrous chloride, 15-25 parts of sodium nitrate, 3-5 parts of sulfonyl-hydrazine mixture, 4-8 parts of beta-sodium naphthalene sulfonate formaldehyde mixture, 8-12 parts of urea, 8-12 parts of sodium gluconate, 400 parts of calcium chloride and 1-3 parts of calcium hydroxide.
2. The inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent according to claim 1, characterized in that: the raw materials comprise the following components in parts by weight: 518 parts of water, 50 parts of calcium nitrate, 10 parts of calcium nitrite, 20 parts of ferrous chloride, 20 parts of sodium nitrate, 4 parts of a sulfonyl hydrazine mixture, 6 parts of a beta-sodium naphthalene sulfonate formaldehyde mixture, 10 parts of urea, 10 parts of sodium gluconate, 350 parts of calcium chloride and 2 parts of calcium hydroxide.
3. The inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent according to claim 1 or 2, characterized in that: the calcium nitrate, the calcium nitrite, the ferrous chloride, the sodium nitrate, the sulfonyl hydrazine compound mixture, the beta-sodium naphthalene sulfonate formaldehyde mixture, the urea, the sodium gluconate, the calcium chloride and the calcium hydroxide are all industrially pure, and the content of effective components is not lower than 90 percent; the water is potable tap water.
4. A method for preparing the inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent as claimed in any one of claims 1 to 3, which is characterized by comprising the following steps:
(1) adding weighed water into a reaction kettle;
(2) sequentially adding weighed calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, a sulfonyl hydrazine mixture, a beta-sodium naphthalene sulfonate formaldehyde mixture, urea and sodium gluconate under the conditions of a certain temperature and a certain time in a stirring state;
(3) slowly adding calcium chloride particles, wherein the adding time is controlled to be 5-11 h;
(4) adding calcium hydroxide, stirring for 12-24 hr to naturally cool the solution to 20-30 deg.C, packaging, and storing.
5. The preparation method of the inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent according to claim 4, characterized in that: the adding process of each raw material comprises the following steps:
the first step is as follows: slowly adding calcium nitrate granules to fully dissolve the calcium nitrate granules, controlling the adding time to be 1-3h, and controlling the temperature to be 20-30 ℃ while adding;
the second step is that: adding calcium nitrite particles, fully reacting with calcium nitrate solution, wherein the adding time is controlled to be 0.5-1h, and the temperature is controlled to be 35-40 ℃ while adding;
The third step: adding ferrous chloride particles, and fully reacting with the mixed solution of calcium nitrate and calcium nitrite, wherein the adding time is controlled to be 0.5-1.5h, and the temperature is controlled to be 35-40 ℃;
the fourth step: then adding sodium nitrate particles, and fully reacting with calcium nitrate, calcium nitrite and ferrous chloride solution, wherein the adding time is controlled to be 1-1.5h, and the temperature is controlled to be 15-25 ℃;
the fifth step: simultaneously adding a sulfonyl hydrazine mixture and a beta-sodium naphthalene sulfonate formaldehyde mixture, and fully reacting the mixture with a calcium nitrate solution, a calcium nitrite solution, a ferrous chloride solution and a sodium nitrate solution for 0.5 to 1 hour at a temperature of between 15 and 25 ℃;
and a sixth step: and then adding urea and sodium gluconate simultaneously to fully react with the mixture of calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate, sulfonyl hydrazine and beta-sodium naphthalene sulfonate formaldehyde, wherein the time is controlled to be 0.5-1.5h, and the temperature is controlled to be 25-35 ℃.
6. An inorganic environment-friendly composite multifunctional permeable concrete reinforcing agent is applied to permeable pavement concrete, permeable pavement concrete prefabricated bricks and new and old concrete reinforcing interface agents.
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